Lens Patents by Country and Assignee — Surface & Stop

Lens Patents by Country and Assignee630 unique source patents represented in the Surface & Stop catalog. Country identifies the publication authority at the start of each patent number; WO publications appear under International (WIPO).
Jointly assigned patents appear in each named assignee section. Patents without a published assignee are collected under “No named assignee or applicant.” Patent numbers open their worldwide Espacenet record search in a new tab.
Countries
Anhui Changgeng Optics Technology Co., Ltd. (5)
Panasonic AVC Networks Xiamen Co., Ltd. (1)
Sigma Corporation (2)
Canon Inc. (1)
Ernst Leitz GmbH (1)
VEB Carl Zeiss Jena (1)
Canon Camera Co., Inc. (1)
Carl-Zeiss-Stiftung (5)
Enna-Werk Optische Anstalt Dr. Appelt K.G. (1)
Ernst Leitz GmbH (1)
Jos. Schneider & Co., Optische Werke (1)
Olympus Optical Co., Ltd. (3)
Optische Werke G. Rodenstock (7)
Voigtländer & Sohn AG (1)
Fujifilm Corporation (1)
Nikon Corporation (21)
Panasonic Intellectual Property Management Co., Ltd. (1)
Samyang Optics Co., Ltd. (2)
Sony Corporation (5)
Sony Group Corporation (7)
Tamron Co., Ltd. (1)
Canon Inc. (36)
Carl Zeiss AG (1)
Cosina Co., Ltd. (19)
Fuji Photo Optical Co., Ltd. (2)
Fujifilm Corporation (2)
Jos. Schneider & Co., Optische Werke (1)
Kino Seimitsu Kogyo K.K. (1)
Konica Corporation (1)
Konica Minolta, Inc. (9)
Konishiroku Photo Industry Co., Ltd. (3)
Mamiya Koki Co., Ltd. (2)
Mamiya-OP Co., Ltd. (4)
Minolta Camera Co., Ltd. (1)
Minolta Co., Ltd. (1)
Nikon Corporation (28)
Nippon Kogaku K.K. (6)
Olympus Corporation (1)
Olympus Imaging Corporation (1)
Panasonic Intellectual Property Management Co., Ltd. (6)
Ricoh Co., Ltd. (5)
Ricoh Imaging Company, Ltd. (4)
Sigma Corporation (28)
Sony Corporation (4)
Sony Group Corporation (3)
Tamron Co., Ltd. (12)
Tamron Optical Foshan Co., Ltd. (1)
Canon Inc. (1)
Fumio Kondo (1)
Konishiroku Photo Industry Co., Ltd. (4)
Mamiya Koki Co., Ltd. (3)
Minolta Camera Co., Ltd. (1)
Minolta Co., Ltd. (5)
Nikon Corporation (2)
Nippon Kogaku K.K. (1)
Tokina Optical Co., Ltd. (1)
Tomokazu Kazamaki (1)
Yashica Co., Ltd. (2)
Carl-Zeiss-Stiftung (1)
Agfa Camera-Werk AG (1)
Nippon Kogaku K.K. (1)
Pierre Angénieux (2)
Ponder & Best, Inc. (1)
VEB Carl Zeiss Jena (1)
Agfa Camera-Werk AG (2)
Anhui Changgeng Optics Technology Co., Ltd. (1)
Asahi Kogaku Kogyo Co., Ltd. (15)
Canon Camera Co., Inc. (6)
Canon Inc. (58)
Carl Zeiss AG (1)
Carl-Zeiss-Stiftung (4)
Eastman Kodak Company (3)
Enna-Werk Optische Anstalt Dr. Appelt K.G. (2)
Ernst Leitz GmbH (6)
Fuji Photo Optical Co., Ltd. (8)
Fujifilm Corporation (33)
Fujinon Corporation (1)
Hoya Corporation (4)
Jos. Schneider & Co., Optische Werke (1)
Jos. Schneider Optische Werke Kreuznach GmbH & Co. KG (3)
Konica Minolta Advanced Layers, Inc. (1)
Konica Minolta, Inc. (3)
Leica Camera AG (1)
Minolta Camera Co., Ltd. (1)
Minolta Co., Ltd. (11)
Nikon Corporation (60)
Nippon Kogaku K.K. (31)
Nittoh Inc. (2)
Olympus Corporation (2)
Olympus Imaging Corporation (6)
Olympus Optical Co., Ltd. (19)
Panasonic Corporation (3)
Panasonic Intellectual Property Management Co., Ltd. (9)
Pentax Corporation (5)
Pentax Ricoh Imaging Company, Ltd. (3)
Ricoh Co., Ltd. (6)
Ricoh Imaging Company, Ltd. (4)
Samsung Digital Imaging Co., Ltd. (1)
Samsung Electronics Co., Ltd. (2)
Samyang Optics Co., Ltd. (1)
Sony Corporation (15)
Takahiko Ohishi (1)
Tamron Co., Ltd. (12)
Vivitar Corporation (4)
Voigtländer & Sohn AG (2)
Voigtländer & Sohn Aktiengesellschaft (3)
Voigtländer A.G. (1)
Zeiss Ikon AG (3)
No named assignee or applicant (8)
ChinaCN · 8 patentsAnhui Changgeng Optics Technology Co., Ltd.(5)CN 110161666 A↗2019Inventors: Dayong Li
LAOWA 65mm f/2.8 2× Ultra Macro APO— 14 ELEMENTS / 10 GROUPS, f ≈ 66.0 mm (design) / 65 mm (marketed)
CN 116520542 A↗2023Inventors: Dayong Li
LAOWA 58mm f/2.8 2× Ultra-Macro APO— 14 ELEMENTS / 11 GROUPS, f ≈ 59.2 mm
CN 205427291 U↗2016Inventors: Xiaohua Zhang
LAOWA 15mm f/4 Wide Angle 1:1 Macro— 12 ELEMENTS / 9 GROUPS, f = 16.00 mm
CN 205720849 U↗2016Inventors: Xiaohua Zhang
LAOWA 12mm f/2.8 Zero-D— 16 elements / 10 groups, Design f = 12.4999 mm
CN 210573001 U↗2020Inventors: Dayong Li
LAOWA 24mm f/14 2× Macro Probe— 27 ELEMENTS / 19 GROUPS, f ≈ 23.7 mm
Panasonic AVC Networks Xiamen Co., Ltd.(1)CN 216772097 U↗2022Inventors: Yidan Zheng, Hanzhao Chen, Xiaoqing Zhan
PANASONIC LUMIX S 35mm f/1.8— 11 ELEMENTS / 9 GROUPS, f ≈ 33.8 mm
Sigma Corporation(2)CN 120386081 A↗2025Inventors: Hiromichi Ochiai
SIGMA 28-45mm f/1.8 DG DN | Art— 18 elements / 15 groups, 28.84-43.66 mm design EFL
CN 121454749 A↗2026Inventors: Ryo Shioda
SIGMA 17-40mm f/1.8 DC | Art— 17 elements / 11 groups, 4 SLD / 4 aspherical elements
European Patent OfficeEP · 1 patentCanon Inc.(1)EP 4 174 551 A1↗2023Inventors: Hiroki Ebe, Shunji Iwamoto
CANON RF 15-30mm f/4.5-6.3 IS STM— 13 ELEMENTS / 11 GROUPS, 15-30mm MARKETING / 15.45-29.15mm PATENT
FranceFR · 2 patentsErnst Leitz GmbH(1)FR 1,471,493↗1967LEICA ELMARIT-R 35mm f/2.8— 7 elements / 5 groups, f ≈ 35.1 mm
VEB Carl Zeiss Jena(1)FR 1.066.698↗1952CARL ZEISS JENA TESSAR 50mm f/2.8— 4 ELEMENTS / 3 GROUPS, f ≈ 50.0 mm
GermanyDE · 20 patentsCanon Camera Co., Inc.(1)DE 1,022,027 B↗1958Inventors: Hiroshi Ito
CANON SERENAR 100mm f/3.5 I— 100mm, f/3.5
Carl-Zeiss-Stiftung(5)DE 1,089,183↗1960Inventors: Günther Lange
CARL ZEISS PRO-TESSAR 35mm f/3.2— 8 ELEMENTS / 6 GROUPS, f = 35.0 mm
DE 1,170,157 B↗1964Inventors: Johannes Berger, Günther Lange
CARL ZEISS CONTAREX PLANAR 55mm f/1.4— 7 ELEMENTS / 5 GROUPS, f = 55.0 mm
DE 1,241,637 B↗1967Inventors: Erhard Glatzel, Hans Schulz
CARL ZEISS HOLOGON 15mm f/8 (Contarex Hologon / Leica M)— 3 ELEMENTS / 3 GROUPS, f ≈ 15.0 mm
DE 1,268,404↗1968Inventors: Erwin Konschack, Günther Lange
CARL ZEISS OLYMPIA-SONNAR 180mm f/2.8— 4 ELEMENTS / 4 GROUPS, f ≈ 180.1 mm
DE 2359156 A1↗1975Inventors: Erhard Glatzel
CARL ZEISS DISTAGON T* 28mm f/2— 9 elements / 8 groups, f = 28.8 mm design
Enna-Werk Optische Anstalt Dr. Appelt K.G.(1)DE 1 228 820 B↗1966Inventors: Hans Lautenbacher
ENNA MÜNCHEN LITHAGON 24mm f/4— 7 elements / 7 groups, f ≈ 24.0 mm
Ernst Leitz GmbH(1)DE 1,183,707 B↗1964Inventors: Otto Zimmermann, Gustav Kleineberg, Eugen Hermanni
LEICA ELMAR-M 135mm f/4— 5 elements / 3 groups, f ≈ 134.5 mm
Jos. Schneider & Co., Optische Werke(1)DE 975 637 C↗1962Inventors: Günter Klemt
SCHNEIDER-KREUZNACH SUPER-ANGULON 90mm f/8— 6 ELEMENTS / 4 GROUPS, f = 90.3 mm
Olympus Optical Co., Ltd.(3)DE 2157160 A1↗1973Inventors: Jihei Nakagawa
OLYMPUS ZUIKO AUTO-FISHEYE 8mm f/2.8— Patent Example 1: 10 elements / 6 groups, Production correlation: 8mm f/2.8 OM circular fisheye
DE 2205380 A1↗1973Inventors: Nobuo Yamashita
OLYMPUS G.ZUIKO AUTO-W 28mm f/3.5— 7 ELEMENTS / 7 GROUPS, f = 28.007 mm
DE 2206106 A1↗1972Inventors: Jihei Nakagawa
OLYMPUS E.ZUIKO AUTO-T 1000mm f/11— 5 ELEMENTS / 5 GROUPS, f = 1000.10 mm
Optische Werke G. Rodenstock(7)DE 1,089,991↗1960Inventors: Karlheinz Pennig
RODENSTOCK ROGONAR-S 50mm f/2.8— 4 ELEMENTS / 3 GROUPS, f = 50.0 mm
DE 3,907,928 A1↗1990Inventors: Ernst Rothe, Josef Weiß
RODENSTOCK APO-SIRONAR-W 150mm f/5.6— 150mm marketed / 148.7mm design, f/5.6
DE 26 35 415 B1↗1977Inventors: Franz Schlegel, Josef Weiß
RODENSTOCK GRANDAGON-N 75mm f/6.8— 6 ELEMENTS / 4 GROUPS, f = 75 mm
DE 27 29 831 B1↗1978Inventors: Franz Schlegel, Josef Weiß
RODENSTOCK SIRONAR-N 100mm f/5.6— 6 elements / 4 groups, f′ = 99.998 mm, e-line
DE 28 18 394 B1↗1979Inventors: Josef Weiß, Franz Schlegel
RODENSTOCK GERONAR 210mm f/6.8— 3 elements / 3 groups, f' = 210.10 mm (d-line)
DE 2444954 A1↗1976Inventors: Franz Schlegel, Josef Weiß
RODENSTOCK GRANDAGON-N 65mm f/4.5— 8 ELEMENTS / 4 GROUPS, f′ = 65 mm; EFL ≈ 64.83 mmRODENSTOCK GRANDAGON-N 75mm f/4.5— 8 elements / 4 groups, f′ = 75 mmRODENSTOCK GRANDAGON-N 90mm f/4.5— 8 ELEMENTS / 4 GROUPS, f′ = 90 mm patent example
DE 2818435 B1↗1978Inventors: Franz Schlegel, Josef Weiß
RODENSTOCK RODAGON-WA 80mm f/4— 6 elements / 4 groups, f ≈ 79.95 mm (d-line)
Voigtländer & Sohn AG(1)DE 143889 C↗1903Inventors: Carl August Hans Harting
VOIGTLÄNDER HELIAR 100mm f/4.5 (Second Asymmetric Form)— 5 ELEMENTS / 3 GROUPS, f = 99.858 mm DESIGN
International (WIPO)WO · 37 patentsFujifilm Corporation(1)WO 2024/195273 A1↗2024Inventors: Daiki Komatsu, Takuya Tanaka, Hiroki Saito
FUJIFILM FUJINON GF 30mm f/5.6 T/S— 16 elements / 11 groups, 30.90 mm design EFL
Nikon Corporation(21)WO 2014/061226 A1↗2014Inventors: Kumiko Ishida, Issei Tanaka
NIKON 1 NIKKOR 32mm f/1.2— 9 elements / 7 groups, f = 32.402 mm design
WO 2015/141574 A1↗2015Inventors: Taku Matsuo, Hiroshi Yamamoto
NIKON AF-S DX NIKKOR 55-200mm f/4-5.6 G ED VR II— 13 elements / 9 groups, f = 56.61-194.07 mm design
WO 2019/049372 A1↗2019Inventors: Takeshi Umeda
NIKON NIKKOR Z 24-70mm f/4 S— 14 ELEMENTS / 11 GROUPS, f = 24.72 – 67.91 mm (2.75× zoom)
WO 2019/097669 A1↗2019Inventors: Tomoki Ito
NIKON AF-S NIKKOR 70-200mm f/2.8 E FL ED VR— 22 ELEMENTS / 18 GROUPS, f = 70–200 mm (design 71.5–196.0 mm)
WO 2019/116563 A1↗2019Inventors: Masashi Yamashita, Tomoki Ito, Hiroshi Yabumoto, Hiroshi Yamamoto, Satoshi Miwa, Keisuke Tsubonoya, Ayumu Makida, Takeru Uehara
NIKON AF-S NIKKOR 105mm f/1.4 E ED— 14 ELEMENTS / 9 GROUPS, f ≈ 102.1 mm
WO 2019/131993 A1↗2019Inventors: Mitsuaki Wada, Masashi Yamashita
NIKON AF-S NIKKOR 180-400mm f/4E TC1.4 FL ED VR— TC OUT — EXAMPLE 1, 27 ELEMENTS / 19 GROUPS
WO 2019/229849 A1↗2019Inventors: Keisuke Tsubonoya, Hiroki Harada, Toshinori Take
NIKON NIKKOR Z 58mm f/0.95 S Noct— 17 ELEMENTS / 10 GROUPS, f ≈ 59.6 mm
WO 2020/012638 A1↗2020Inventors: Yoko Komatsubara, Takeshi Umeda
NIKON NIKKOR Z DX 16-50mm f/3.5-6.3 VR— 9 ELEMENTS / 7 GROUPS, f = 16.46–48.50 mm
WO 2020/105104 A1↗2020Inventors: Takeru Uehara
NIKON NIKKOR Z 70-200mm f/2.8 VR S— 21 ELEMENTS / 18 GROUPS, f = 71.5–196 mm
WO 2020/136749 A1↗2020Inventors: Kosuke Machida, Osamu Gomibuchi, Kenichi Kitano, Mizuki Wayu, Tsuneo Watanabe, Makoto Horikoshi, Ichiro Imaei
NIKON NIKKOR Z 24-70mm f/2.8 S— 17 ELEMENTS / 15 GROUPS, f = 24.8–67.9 mm
WO 2021/039813 A1↗2021Inventors: Masashi Yamashita, Tomoki Ito, Tomonori Kuribayashi, Keigo Koida, Satoshi Miwa, Yoko Komatsubara, Katsuya Watanabe, Azuna Nonaka, Ayumu Makida
NIKON AF-P DX NIKKOR 10-20mm f/4.5-5.6 G VR— 10-20 mm DX zoom, 14 elements / 11 groups; 3 aspherical elements
WO 2021/117429 A1↗2021Inventors: Fumiaki Ohtake
NIKON NIKKOR Z 20mm f/1.8 S— 20 mm, f/1.8
WO 2021/117563 A1↗2021Inventors: Fumiaki Ohtake, Azuna Nonaka, Yoshiharu Yuasa, Takeshi Umeda
NIKON NIKKOR Z 14-24mm f/2.8 S— 16 ELEMENTS / 11 GROUPS, f = 14.4–23.3 mm (patent) / 14–24 mm (production)
WO 2021/241230 A1↗2021Inventors: Hiroki Harada
NIKON NIKKOR Z 50mm f/1.2 S— 17 ELEMENTS / 15 GROUPS, f = 51.29 mm
WO 2022/071249 A1↗2022Inventors: Toshiyuki Shimada
NIKON NIKKOR Z 28mm f/2.8— 9 ELEMENTS / 8 GROUPS, f ≈ 28.8 mm
WO 2022/097401 A1↗2022Inventors: Tomonori Kuribayashi
NIKON NIKKOR Z MC 105mm f/2.8 VR S— 16 ELEMENTS / 11 GROUPS, f ≈ 102.9 mm
WO 2022/259649 A1↗2022Inventors: Takuro Ono, Kosuke Machida, Ayumu Makida, Keisuke Tsubonoya
NIKON NIKKOR Z 24-120mm f/4 S— 16 ELEMENTS / 13 GROUPS, f = 24.70 – 116.50 mm
WO 2022/264542 A1↗2022Inventors: Tomoyuki Sashima, Norikazu Yokoi, Takahiro Ishikawa
NIKON NIKKOR Z DX 18-140mm f/3.5-6.3 VR— 17 ELEMENTS / 13 GROUPS, f = 18.5–135.8 mm (design)
WO 2023/190222 A1↗2023Inventors: Ayumu Makida, Taeko Toshi
NIKON NIKKOR Z 26mm f/2.8— 8 ELEMENTS / 4 GROUPS, f = 26.78 mm
WO 2024/062958 A1↗2024Also assigned to: Tamron Co., Ltd.
Inventors: Hisayuki Yamanaka, Atsushi Takahashi, Toshinori Take, Keigo Koida
NIKON NIKKOR Z 180-600mm f/5.6-6.3 VR— 25 ELEMENTS / 17 GROUPS, 180-600mm (DESIGN 185.0086-582.1636mm)
WO 2024/147268 A1↗2024Inventors: Mami Muratani, Hiroshi Yamamoto, Tomonori Kuribayashi, Takuro Ono
NIKON NIKKOR Z 135mm f/1.8 S Plena— 16 ELEMENTS / 14 GROUPS, f ≈ 132.3 mm
Panasonic Intellectual Property Management Co., Ltd.(1)WO 2020/158622 A1↗2020Inventors: Shunichiro Yoshinaga, Yasuhito Suzuki
PANASONIC LUMIX S PRO 50mm f/1.4— 13 ELEMENTS / 11 GROUPS, f ≈ 49.0 mm
Samyang Optics Co., Ltd.(2)WO 2021/085655 A1↗2021Inventors: Moon-Kyung Kim
SAMYANG AF 85mm f/1.4 FE— 11 elements / 8 groups, f = 83.996 mm design / 85 mm marketed
WO 2021/246545 A1↗2021Inventors: Jung Du Lee
SAMYANG AF 18mm f/2.8 FE— 9 elements / 8 groups, f = 18.541 mm patent; 18.548 mm computed
Sony Corporation(5)WO 2016/136352 A1↗2016Inventors: Yumiko Uehara, Fumikazu Kanetaka, Hisashi Uno
SONY FE 90mm f/2.8 Macro G OSS— 15 ELEMENTS / 11 GROUPS, f ≈ 92.6 mm
WO 2017/138250 A1↗2017Inventors: Masaharu Hosoi
SONY PLANAR T* FE 50mm f/1.4 ZA— 12 ELEMENTS / 9 GROUPS, f ≈ 50.3 mm
WO 2019/073744 A1↗2019Inventors: Takuya Kato, Kota Omiya, Hiroyuki Matsumoto
SONY FE 24mm f/1.4 GM— 13 elements / 10 groups, f = 23.66 mm patent design
WO 2019/187633 A1↗2019Inventors: Dai Matsuoka, Naoki Miyagawa, Hiroyuki Matsumoto
SONY FE 135mm f/1.8 GM— 13 ELEMENTS / 10 GROUPS, f ≈ 131.0 mm
WO 2020/213337 A1↗2020Inventors: Kota Omiya, Tetsuichiro Okumura
SONY FE 20mm f/1.8 G— 14 ELEMENTS / 12 GROUPS, 20 mm (scaled from 19.5069 mm paraxial)
Sony Group Corporation(7)WO 2021/199923 A1↗2021Inventors: Takumu Yamada, Dai Matsuoka
SONY FE 14mm f/1.8 GM— 14 elements / 11 groups, f = 14.42 mm design
WO 2021/200206 A1↗2021Inventors: Takuya Kato
SONY FE 12-24mm f/2.8 GM— 17 elements / 14 groups, f = 12.36-23.28 mm design
WO 2023/153076 A1↗2023Inventors: Ryohei Tazaki, Yuma Kumisawa, Hiroo Juri
SONY FE 20-70mm f/4 G— 16 ELEMENTS / 13 GROUPS, f = 20.71–67.56 mm
WO 2023/181666 A1↗2023Inventors: Masaki Maruyama
SONY FE 24-70mm f/2.8 GM II— 20 ELEMENTS / 15 GROUPS, f = 24.72–67.90 mm
WO 2024/135126 A1↗2024Inventors: Shohei Kikuchi, Kohei Uemura, Yurina Nishi
SONY FE 16-35mm f/2.8 GM II— 15 elements / 12 groups, 6 zoom groups: - + + + - +
WO 2025/239028 A1↗2025Inventors: Masakazu Yamagishi, Ryohei Tazaki, Yuma Kumisawa
SONY FE 85mm f/1.4 GM II— 14 ELEMENTS / 11 GROUPS, f ≈ 82.5 mm
WO 2025/263124 A1↗2025Inventors: Takashi Yamasaki, Iwao Yamada
SONY FE 28-70mm f/2 GM— 20 ELEMENTS / 14 GROUPS, f = 28.86–67.87 mm
Tamron Co., Ltd.(1)WO 2024/062958 A1↗2024Also assigned to: Nikon Corporation
Inventors: Hisayuki Yamanaka, Atsushi Takahashi, Toshinori Take, Keigo Koida
NIKON NIKKOR Z 180-600mm f/5.6-6.3 VR— 25 ELEMENTS / 17 GROUPS, 180-600mm (DESIGN 185.0086-582.1636mm)
JapanJP · 169 patentsCanon Inc.(36)JP 1991-141313↗1991Inventors: Hideki Ogawa
CANON EF 100mm f/2.8 Macro— 10 ELEMENTS / 9 GROUPS, 100mm f/2.8 (marketed)
JP 1997-211319 A↗1997Inventors: Hideki Ogawa
CANON EF 180mm f/3.5 L Macro USM— 14 ELEMENTS / 12 GROUPS, 180mm f/3.5 MARKETED
JP 1999-030743 A↗1999Inventors: Makoto Misaka
CANON EF 24mm f/1.4 L USM— 11 ELEMENTS / 9 GROUPS, PATENT f = 24.6 mm, F/1.45, 2ω = 82.7°
JP 2000-47107 A↗2000Inventors: Hiroshi Endo
CANON EF 100-400mm f/4.5-5.6 L IS USM— 17 ELEMENTS / 14 PHYSICAL GROUPS, PATENT f = 102.68 / 161.53 / 389.19 mm
JP 2001-350095 A↗2001Inventors: Makoto Mitsusaka
CANON EF 28-200mm f/3.5-5.6 USM— 16 GLASS SUBSTRATES / 12 GROUPS, DESIGN 28.92-193.14 mm
JP 2002-365547 A↗2002Inventors: Makoto Mitsusaka
CANON EF 28-105mm f/3.5-4.5 II USM— 15 ELEMENTS / 12 GROUPS, PATENT EFL 28.903-101.333 mm
JP 2004-317867 A↗2004Inventors: Hiroshi Endo
CANON EF 70-300mm f/4.5-5.6 DO IS USM— 17 ELEMENTS / 14 AIR-SPACED ASSEMBLIES, 7 FUNCTIONAL ZOOM GROUPS
JP 2007-108398 A↗2007Inventors: Hiroshi Endo
CANON EF-S 17-55mm f/2.8 IS USM— 21 ELEMENTS (19 GLASS + 2 RESIN) / 12 GROUPS, f = 17.50–53.44 mm
JP 2008-145584 A↗2008Inventors: Takayoshi Yokoyama
CANON EF 200mm f/2 L IS USM— 17 elements / 12 groups incl. filter; 16 powered elements rendered, f = 194.991 mm design; 200 mm marketed
JP 2009-282554 A↗2009Inventors: Makoto Misaka
CANON EF 28-90mm f/4-5.6 II USM— 10 elements / 8 air-spaced groups, 28-90mm f/4-5.6
JP 2013-054269 A↗2013Inventors: Makoto Nakahara
CANON EF 28mm f/2.8 IS USM— 9 ELEMENTS / 7 GROUPS, DESIGN f = 28.60 mm
JP 2013-140404 A↗2013Inventors: Shigenobu Sugita
CANON EF 70-300mm f/4-5.6 L IS USM— 19 elements / 14 groups, 72.20–290.00 mm design EFL
JP 2014-041222 A↗2014Inventors: Hiroshi Endo
CANON EF 24-70mm f/2.8 L USM— 16 elements / 13 groups, 24.90-68.14 mm patent design
JP 2015-031869 A↗2015Inventors: Makoto Nakahara
CANON EF-S 10-18mm f/4.5-5.6 IS STM— 14 ELEMENTS / 11 GROUPS, f = 10.30–17.46 mm
JP 2015-111192 A↗2015Inventors: Yuichi Gyoda
CANON EF-S 24mm f/2.8 STM— 6 ELEMENTS / 5 GROUPS, f ≈ 24.5 mm
JP 2018-049102 A↗2018Inventors: Tomohiko Ishibashi
CANON EF 135mm f/2 L USM— 10 ELEMENTS / 8 GROUPS, 135 mm f/2 (marketing)
JP 2018-106021 A↗2018Inventors: Daisuke Ito
CANON ZOOM LENS 15-45mm f/2.8-5.6 (PowerShot G1 X Mark III)— 9 elements / 8 groups, 15-45mm f/2.8-5.6
JP 2018-132674 A↗2018Inventors: Akira Mizuma
CANON TS-E 135mm f/4L MACRO— 11 elements / 7 groups, f = 132.97 mm design (135 mm marketed)
JP 2018-180366 A↗2018Inventors: Kenji Shinohara
CANON EF-M 32mm f/1.4 STM— 14 elements / 8 groups, f = 32.34 mm design
JP 2018-205474 A↗2018Inventors: Masakazu Yamagishi
CANON TS-E 90mm f/2.8L MACRO— 11 elements / 9 groups, Patent f = 55.986 mm; scaled ×1.60754
JP 2020-118807 A↗2020Inventors: Kohei Kimura
CANON RF 28-70mm f/2 L USM— 19 ELEMENTS / 13 GROUPS, f = 28.9 – 67.9 mm (patent)
JP 2020-173349 A↗2020Inventors: Maki Yokoya, Tomohiro Ino
CANON RF 600mm f/11 IS STM— 10 ELEMENTS / 7 GROUPS, 600mm f/11 (MARKETED)CANON RF 800mm f/11 IS STM— 11 ELEMENTS / 8 GROUPS, 800mm f/11 (MARKETED)
JP 2021-047297 A↗2021Inventors: Keiko Taki, Takeo Mori, Makoto Nakahara
CANON RF 100mm f/2.8 L MACRO IS USM— 17 ELEMENTS / 13 GROUPS, f ≈ 100.8 mm
JP 2021-056407 A↗2021Inventors: Makoto Nakahara, Shunji Iwamoto, Masato Katayose
CANON RF 70-200mm f/2.8 L IS USM— 17 ELEMENTS / 7 ZOOM GROUPS, f = 72.13–194.06 mm
JP 2021-86024 A↗2021Inventors: Yuichi Gyoda
CANON RF-S 18-45mm f/4.5-6.3 IS STM— 7 ELEMENTS / 7 GROUPS, 18–45mm f/4.5–6.3 (marketed)
JP 2022-085382 A↗2022Inventors: Takumi Suzuki
CANON RF 16mm f/2.8 STM— 9 elements / 7 groups, f = 16.49 mm design / 16 mm marketed
JP 2025-15010 A↗2025Inventors: Kenji Shinohara, Yuki Matsuba
CANON RF 24mm f/1.4 L VCM— 15 ELEMENTS / 11 GROUPS, 24mm f/1.4 (MARKETED)
JP H01-102413 A↗1989Inventors: Hideki Ogawa, Sadatoshi Takahashi
CANON EF 200mm f/1.8 L USM— 10 POWERED ELEMENTS / 8 GROUPS (PATENT CORE), f ≈ 200.017 mm
JP H01-189622 A↗1989Inventors: Sadatoshi Takahashi
CANON EF 28-70mm f/3.5-4.5 II— 10 ELEMENTS / 9 GROUPS, DESIGN EFL 29.083-67.894 mm
JP H05-034592 A↗1993Inventors: Hideki Ogawa
CANON EF 14mm f/2.8 L USM— 14 ELEMENTS / 10 GROUPS, f = 14.201 mm
JP H08-110467 A↗1996Inventors: Tadashi Endo
CANON EF 20mm f/2.8 USM— 11 elements / 9 groups, Patent EFL 20.498624 mm; retained at printed scale
JP H11-211978 A↗1999Inventors: Yasunori Murata, Makoto Misaka
CANON EF 35mm f/1.4 L USM— 11 ELEMENTS / 9 GROUPS, 35 mm MARKETED / 34.2948 mm DESIGN
JP S53-133028↗1978Inventors: Sadahiko Tsuji
CANON NEW FD 100mm f/2— 6 elements / 4 groups, f ≈ 100.00 mm
JP S57-64716 A↗1982Inventors: Keiji Ikemori
CANON NEW FD 14mm f/2.8 L— 14 elements / 10 groups, f ≈ 14.0 mm
JP S62-078520 A↗1987Inventors: Takashi Matsushita
CANON EF 28mm f/2.8— 5 ELEMENTS / 5 GROUPS, f = 28.219 mm (MODELED)
JP S63-17421 A↗1988Inventors: Takashi Matsushita
CANON EF 15mm f/2.8 Fisheye— 8 ELEMENTS / 7 GROUPS, PATENT F = 15.3 mm
Carl Zeiss AG(1)JP 2015-161792 A↗2015Also assigned to: Fujifilm Corporation
Inventors: Ryoko Tomioka, Hiroki Saito, Aurélien Dodoc, Michael Pollmann, Jürgen Klein
CARL ZEISS TOUIT MAKRO-PLANAR T* 50mm f/2.8 Macro— 14 elements / 11 groups, f' = 51.52 mm patent design
Cosina Co., Ltd.(19)JP 2002-090622 A↗2002Inventors: Yoshihisa Yomogida
VOIGTLÄNDER MACRO APO-LANTHAR 125mm f/2.5 SL— 10 ELEMENTS / 9 GROUPS, f = 125.0 mm
JP 2003-270529 A↗2003Inventors: Yoshihisa Yomogida
VOIGTLÄNDER APO-LANTHAR 180mm f/4 SL Close Focus— 9 ELEMENTS / 7 GROUPS, f ≈ 197.9 mm (patent) / 180 mm (marketed)
JP 2004-101880 A↗2004Inventors: Yoshihisa Yomogida
VOIGTLÄNDER NOKTON 35mm f/1.2 Aspherical— 10 ELEMENTS / 7 GROUPS, f ≈ 35.8 mm
JP 2020-122918 A↗2020Inventors: Hirokazu Shimada, Yasuyuki Sugano
VOIGTLÄNDER NOKTON Vintage Line 75mm f/1.5 Aspherical VM— 7 ELEMENTS / 6 GROUPS, EFL 74.503 mm MODEL / 74.5 mm PATENT
JP 2021-043376 A↗2021Inventors: Yasuyuki Sugano
VOIGTLÄNDER APO-LANTHAR 50mm f/2.0 Aspherical— 10 ELEMENTS / 8 GROUPS, f ≈ 49.3 mm
JP 2021-076740 A↗2021Inventors: Yasuyuki Sugano, Hirokazu Shimada
VOIGTLÄNDER NOKTON 60mm f/0.95— 11 ELEMENTS / 8 GROUPS, EFL 58.145 mm MODEL / 58.15 mm PATENT
JP 2022-012964 A↗2022Inventors: Yasuyuki Sugano
VOIGTLÄNDER NOKTON Vintage Line 50mm f/1.5 Aspherical II VM— 8 ELEMENTS / 7 GROUPS, EFL 49.598 mm MODEL / 49.60 mm PATENT
JP 2022-100641 A↗2022Inventors: Yoshihisa Yomogida, Yuki Shibata
VOIGTLÄNDER ULTRON Vintage Line 28mm f/2 Aspherical— 10 ELEMENTS / 7 GROUPS, f = 28.50 mm
JP 2023-032663 A↗2023Inventors: Yuki Shibata
VOIGTLÄNDER COLOR-SKOPAR 28mm f/2.8 Aspherical SL IIs— 7 ELEMENTS / 6 GROUPS, EFL 29.430 mm MODEL / 29.4 mm PATENT
JP 2023-049919 A↗2023Inventors: Yuki Shibata
VOIGTLÄNDER APO-SKOPAR 90mm f/2.8 VM / SL IIs— 7 ELEMENTS / 7 GROUPS, EFL 87.261 mm MODEL / 87.30 mm PATENT
JP 2023-063766 A↗2023Inventors: Kazuhiro Ogino
VOIGTLÄNDER NOKTON 50mm f/1.0— 9 ELEMENTS / 7 GROUPS, f = 49.998 mm
JP 2024-107941 A↗2024Inventors: Yoshihisa Yomogida, Yuki Shibata
VOIGTLÄNDER COLOR-SKOPAR 28mm f/2.8 Aspherical— 8 ELEMENTS / 5 GROUPS, f ≈ 28.900 mm
JP 2024-167569 A↗2024Inventors: Tatsuya Moriyama
VOIGTLÄNDER ULTRON 27mm f/2— 6 ELEMENTS / 4 GROUPS, PATENT f = 27.8000 mm
JP 2025-058577 A↗2025Inventors: Yuki Shibata
VOIGTLÄNDER NOKTON 50mm f/1.2 X-Mount— 9 ELEMENTS / 8 GROUPS, f ≈ 48.5 mm
JP 2025-108279 A↗2025Inventors: Yoshihisa Yomogida, Yuki Shibata
VOIGTLÄNDER APO-LANTHAR 50mm f/3.5 (Type II) VM— 8 ELEMENTS / 6 GROUPS, EFL 49.101 mm MODEL / 49.10 mm PATENT
JP 2026-8235 A↗2026Inventors: Yuki Shibata
VOIGTLÄNDER APO-ULTRON 90mm f/2 VM— 8 ELEMENTS / 7 GROUPS, 90mm f/2 (MARKETED)
JP 2026-98935 A↗2026Inventors: Nozomu Mishima
VOIGTLÄNDER APO-LANTHAR 28mm f/2 Aspherical VM— 12 ELEMENTS / 8 GROUPS, 28mm f/2 (PRODUCTION)
JP 2026-120386 A↗2026Inventors: Tatsuya Moriyama
VOIGTLÄNDER PORTRAIT HELIAR 75mm f/1.8— 6 ELEMENTS / 3 GROUPS, 75 mm marketing · 73.356 mm sharp-state EFL
JP 2026-121744 A↗2026Inventors: Nozomu Mishima
VOIGTLÄNDER COLOR-SKOPAR 35mm f/3.5 Aspherical— 6 ELEMENTS / 4 GROUPS, 35mm f/3.5 (35.741mm f/3.58 design)
Fuji Photo Optical Co., Ltd.(2)JP 2004-302170 A↗2004Inventors: Kazunori Ohno
HASSELBLAD HC Macro 120mm f/4— 9 ELEMENTS / 9 GROUPS, f ≈ 118.7 mm
JP S56-140311↗1981Inventors: Ryoichi Doi, Yutaka Sakai, Kazunori Ohno
FUJIFILM EBC FUJINON SW 65mm f/5.6 (Fujica GSW690 Professional)— 6 elements / 4 groups, f ≈ 65.0 mm
Fujifilm Corporation(2)JP 2015-161792 A↗2015Also assigned to: Carl Zeiss AG
Inventors: Ryoko Tomioka, Hiroki Saito, Aurélien Dodoc, Michael Pollmann, Jürgen Klein
CARL ZEISS TOUIT MAKRO-PLANAR T* 50mm f/2.8 Macro— 14 elements / 11 groups, f' = 51.52 mm patent design
JP 2023-029039 A↗2023Inventors: Takuya Tanaka, Yasutaka Shimada
FUJIFILM FUJINON XF 56mm f/1.2 R WR— 13 elements / 8 groups, f = 54.453 mm design; 56 mm marketed
Jos. Schneider & Co., Optische Werke(1)JP S42-023896↗1967Inventors: Günter Klemt
SCHNEIDER-KREUZNACH TECHNIKA SUPER-ANGULON 75mm f/8— 6 ELEMENTS / 4 GROUPS, f = 76.51 mm (75 mm nominal)
Kino Seimitsu Kogyo K.K.(1)JP S51-63635↗1976Inventors: Rinzo Watanabe, Ellis I. Betensky
VIVITAR SERIES 1 70-210mm f/3.5 VMC MACRO FOCUSING AUTO ZOOM— 15 ELEMENTS / 10 GROUPS, 70-210mm (PATENT 70-205mm)
Konica Corporation(1)JP H11-160615 A↗1999Inventors: Toshiji Yamashita
KONICA HEXANON 60mm f/1.2 L— 7 ELEMENTS / 6 GROUPS, 60mm MARKETED / 58.2635mm DESIGN EFL
Konica Minolta, Inc.(9)JP 2016-021011 A↗2016Also assigned to: Nikon Corporation
Inventors: Yasunari Fukuda, Atsuo Masui, Kosuke Machida
NIKON AF-S NIKKOR 20mm f/1.8 G ED— 13 elements / 11 groups, f = 20.600 mm design EFL
JP 2016-090725 A↗2016Inventors: Hiroaki Tanaka
LEICA APO-MACRO-ELMARIT-TL 60mm f/2.8 ASPH.— 10 ELEMENTS / 9 GROUPS, f ≈ 60.0 mm
JP 2017-003807 A↗2017Also assigned to: Nikon Corporation
Inventors: Yasunari Fukuda, Kana Inoue, Akiko Furuta
Nikon AF-S NIKKOR 24mm f/1.8G ED— 12 elements / 9 groups, 24 mm f/1.8 marketed
JP 2017-161685 A↗2017Also assigned to: Nikon Corporation
Inventors: Ryosuke Imajima, Yasunari Fukuda, Toshinori Take, Takayuki Sensui
NIKON PC NIKKOR 19mm f/4 E ED— 17 ELEMENTS / 13 GROUPS (18 physical), f ≈ 19.4 mm
JP 2017-227799 A↗2017Also assigned to: Nikon Corporation
Inventors: Yasunari Fukuda, Akiko Furuta, Toshinori Take, Takayuki Sensui
NIKON AF-S NIKKOR 28mm f/1.4 E ED— 14 ELEMENTS / 11 GROUPS, f ≈ 28.4 mm
JP 2019-090947 A↗2019Also assigned to: Nikon Corporation
Inventors: Keiko Yamada, Ryosuke Imajima, Wataru Tatsuno, Haruo Sato
NIKON NIKKOR Z 35mm f/1.8 S— 35mm, f/1.8
JP 2020-173366 A↗2020Also assigned to: Nikon Corporation
Inventors: Ryosuke Imajima, Takakazu Hirose, Daisuke Tanahashi, Yasushi Yamamoto, Mami Muratani
NIKON NIKKOR Z 85mm f/1.8 S— 12 ELEMENTS / 8 GROUPS, f ≈ 83.0 mm (patent) · 85 mm (production)
JP 2021-189377 A↗2021Also assigned to: Nikon Corporation
Inventors: Takakazu Hirose, Keiko Yamada, Yasushi Yamamoto, Hiroshi Yamamoto
NIKON NIKKOR Z 24-50mm f/4-6.3— 11 ELEMENTS / 10 GROUPS, f = 24.7–48.5 mm
JP H05-164961↗1993Inventors: Yoshio Shimazaki
KONICA HEXAR 35mm f/2 (Konica Hexar AF)— 7 elements / 6 groups, f = 34.99 mm
Konishiroku Photo Industry Co., Ltd.(3)JP 1980-021005 A↗1980Inventors: Tadashi Kojima, Reiko Mao
KONICA ZOOM-HEXANON AR 35–70mm f/3.5— 9 ELEMENTS / 9 GROUPS, 35–70mm
JP 1983-137812 A↗1983Inventors: Makoto Sakano, Norikazu Arai, Shozo Ishiyama, Tadashi Kojima, Hiroshi Miyamae
KONICA ZOOM-HEXANON AR 70–150mm f/4— 15 ELEMENTS / 12 GROUPS, 70–150mm f/4 (marketed)
JP 1983-149014 A↗1983Inventors: Norikazu Arai, Hiroshi Miyamae, Shozo Ishiyama, Makoto Sakano, Tadashi Kojima
KONICA ZOOM-HEXANON AR 65–135mm f/4— 13 ELEMENTS / 9 GROUPS, 65–135mm MARKETED / 66.290–135.095mm MODELED
Mamiya Koki Co., Ltd.(2)JP S55-24081 B2↗1980Inventors: Masayoshi Okazaki
MAMIYA-SEKOR MACRO C 80mm f/4— 6 ELEMENTS / 4 GROUPS, f = 80.121 mm (DESIGN)
JP S55-45883 B2↗1980Inventors: Yusuke Arisaka
MAMIYA-SEKOR C 55mm f/2.8 N— 8 ELEMENTS / 6 GROUPS, f = 54.9999 mm
Mamiya-OP Co., Ltd.(4)JP 1997-297263 A↗1997Inventors: Hisataro Shimada
MAMIYA SEKOR AF 55mm f/2.8— 7 ELEMENTS / 6 GROUPS, f = 54.99997 mm (DESIGN)
JP 2000-028919 A↗2000Inventors: Hideyuki Suga
MAMIYA N 210mm f/8 L— 7 ELEMENTS / 5 GROUPS, f = 209.958 mm (SCALED DESIGN)
JP 2001-183581 A↗2001Inventors: Hideyuki Suga
MAMIYA SEKOR AF 150mm f/2.8 IF D— 8 ELEMENTS / 7 GROUPS, f = 149.790 mm (DESIGN)
JP H10-206729 A↗1998Inventors: Hideyuki Suga
MAMIYA AF APO 300mm f/4.5 IF— 8 ELEMENTS / 8 GROUPS, 300mm f/4.5
Minolta Camera Co., Ltd.(1)JP 1987-249119 A↗1987Inventors: Tetsuya Arimoto
MINOLTA AF 20mm f/2.8— 10 ELEMENTS / 9 GROUPS, 20mm
Minolta Co., Ltd.(1)JP 2004-109559 A↗2004Inventors: Hiroyuki Matsumoto, Mamoru Terada
MINOLTA AF 70-200mm f/2.8 APO G (D) SSM— Patent Example 1: 19 elements / 15 air-spaced optical clusters, Production class: 70-200mm f/2.8 A-mount
Nikon Corporation(28)JP 2000-19398 A↗2000Inventors: Susumu Sato
NIKON AI AF-S ZOOM-NIKKOR 80-200mm f/2.8D IF-ED— 18 ELEMENTS / 14 GROUPS, MARKETED 80-200mm f/2.8
JP 2003-005030 A↗2003Inventors: Kouichi Ohshita
NIKON AI NIKKOR 45mm f/2.8 P— 4 elements / 3 groups, f ≈ 45.0 mm
JP 2008-151949 A↗2008Inventors: Takayuki Sensui
NIKON PC-E NIKKOR 24mm f/3.5 D ED— 13 ELEMENTS / 10 GROUPS, f ≈ 24.6 mm
JP 2011-248340 A↗2011Inventors: Toshinori Take
NIKON 1 NIKKOR 10mm f/2.8— 6 elements / 5 groups, f = 10.300 mm patent; 10 mm marketed
JP 2013-019993 A↗2013Inventors: Haruo Sato
NIKON AF-S NIKKOR 58mm f/1.4 G— 9 ELEMENTS / 5 GROUPS (patent) · 6 GROUPS (production), f ≈ 58.0 mm
JP 2014-209144 A↗2014Also assigned to: Tamron Co., Ltd.
Inventors: Taku Matsuo, Takeshi Suzuki, Haruo Sato, Hisayuki Yamanaka
NIKON AF-S NIKKOR 200-500mm f/5.6 E ED VR— 19 ELEMENTS / 12 GROUPS, f = 205–487 mm
JP 2015-102852 A↗2015Inventors: Makoto Fujimoto
NIKON AF-S NIKKOR 300mm f/4E PF ED VR— 300 mm f/4 (marketed), 16 elements / 10 groups
JP 2015-215559 A↗2015Inventors: Kazumasa Tanaka, Toshinori Take, Tetsushi Miwa
NIKON AF-S NIKKOR 400mm f/2.8E FL ED VR— 16 ELEMENTS / 12 GROUPS, 2 FLUORITE + 2 ED
JP 2015-215560 A↗2015Inventors: Masafumi Yamashita, Tetsushi Miwa
NIKON AF-S NIKKOR 500mm f/4E FL ED VR— 16 ELEMENTS / 12 GROUPS, 2 FLUORITE + 3 ED
JP 2016-021011 A↗2016Also assigned to: Konica Minolta, Inc.
Inventors: Yasunari Fukuda, Atsuo Masui, Kosuke Machida
NIKON AF-S NIKKOR 20mm f/1.8 G ED— 13 elements / 11 groups, f = 20.600 mm design EFL
JP 2017-003807 A↗2017Also assigned to: Konica Minolta, Inc.
Inventors: Yasunari Fukuda, Kana Inoue, Akiko Furuta
Nikon AF-S NIKKOR 24mm f/1.8G ED— 12 elements / 9 groups, 24 mm f/1.8 marketed
JP 2017-068114 A↗2017Inventors: Tetsushi Miwa, Hiroshi Yamamoto, Haruo Sato
NIKON AF-S FISHEYE NIKKOR 8-15mm f/3.5-4.5E ED— 18 ELEMENTS / 13 GROUPS — PATENT EXAMPLE, 8.17997–15.45007mm DESIGN
JP 2017-161685 A↗2017Also assigned to: Konica Minolta, Inc.
Inventors: Ryosuke Imajima, Yasunari Fukuda, Toshinori Take, Takayuki Sensui
NIKON PC NIKKOR 19mm f/4 E ED— 17 ELEMENTS / 13 GROUPS (18 physical), f ≈ 19.4 mm
JP 2017-227799 A↗2017Also assigned to: Konica Minolta, Inc.
Inventors: Yasunari Fukuda, Akiko Furuta, Toshinori Take, Takayuki Sensui
NIKON AF-S NIKKOR 28mm f/1.4 E ED— 14 ELEMENTS / 11 GROUPS, f ≈ 28.4 mm
JP 2018-017857 A↗2018Inventors: Tetsushi Miwa, Hiroshi Yabumoto
NIKON AF-S NIKKOR 500mm f/5.6E PF ED VR— 19 elements / 11 groups, 500 mm f/5.6 marketed
JP 2019-008031 A↗2019Inventors: Takeru Uehara
NIKON NIKKOR Z 14-30mm f/4 S— 14 ELEMENTS / 12 GROUPS, f = 14.42–29.10 mm
JP 2019-090947 A↗2019Also assigned to: Konica Minolta, Inc.
Inventors: Keiko Yamada, Ryosuke Imajima, Wataru Tatsuno, Haruo Sato
NIKON NIKKOR Z 35mm f/1.8 S— 35mm, f/1.8
JP 2020-173366 A↗2020Also assigned to: Konica Minolta, Inc.
Inventors: Ryosuke Imajima, Takakazu Hirose, Daisuke Tanahashi, Yasushi Yamamoto, Mami Muratani
NIKON NIKKOR Z 85mm f/1.8 S— 12 ELEMENTS / 8 GROUPS, f ≈ 83.0 mm (patent) · 85 mm (production)
JP 2020-177057 A↗2020Inventors: Masafumi Yamashita, Toshinori Take
NIKON AF-S NIKKOR 120-300mm f/2.8 E FL ED SR VR— 25 ELEMENTS / 19 GROUPS, f = 123.6–291.0 mm (patent)
JP 2021-189351 A↗2021Inventors: Keigo Koida
NIKON NIKKOR Z 40mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 41.2 mm
JP 2021-189377 A↗2021Also assigned to: Konica Minolta, Inc.
Inventors: Takakazu Hirose, Keiko Yamada, Yasushi Yamamoto, Hiroshi Yamamoto
NIKON NIKKOR Z 24-50mm f/4-6.3— 11 ELEMENTS / 10 GROUPS, f = 24.7–48.5 mm
JP 2022-092388 A↗2022Inventors: Hiroshi Yabumoto
NIKON NIKKOR Z 100-400mm f/4.5-5.6 VR S— 25 elements / 20 groups, 6 ED + 2 Super ED
JP 2025-052870 A↗2025Inventors: Masaki Harada, Toshiyuki Shimada
NIKON NIKKOR Z 35mm f/1.2 S— 17 ELEMENTS / 15 GROUPS, f = 34.4 mm (patent) · 35 mm (marketed)
JP H9-105860↗1997Inventors: Kouichi Ohshita
NIKON DODOTTO 400mm f/8— 4 ELEMENTS / 2 GROUPS, f = 390.0 mm design / 400 mm marketed
JP H11-030748 A↗1999Inventors: Keiji Moriyama
NIKON AF ZOOM-NIKKOR 28-80mm f/3.5-5.6 D— 8 elements / 8 air-spaced groups, 2 zoom groups: G1 (-) / G2 (+)
JP WO2019/220618 A1↗2019Inventors: Saburo Masugi, Tomoyuki Sashima
NIKON NIKKOR Z 50mm f/1.8 S— 12 elements / 9 groups, EFL 51.6 mm
JP WO2020/105107 A1↗2020Inventors: Takahiro Ishikawa, Norikazu Yokoi
NIKON NIKKOR Z DX 50-250mm f/4.5-6.3 VR— Production: 50-250 mm, f/4.5-6.3, Patent Example 1: f = 51.50-242.80 mm
JP WO2020/157904 A1↗2020Inventors: Ayumu Makida, Tomoki Ito, Satoshi Miwa
NIKON NIKKOR Z 24-200mm f/4-6.3 VR— 19 ELEMENTS / 15 GROUPS, f = 24.7–194.0 mm (design)
Nippon Kogaku K.K.(6)JP 1964-025754↗1964Inventors: Saburo Murakami
NIKON NIKKOR-S AUTO 5cm f/2— 7 ELEMENTS / 5 GROUPS, EFL 50.006 mm
JP 1966-017177↗1966Inventors: Saburo Murakami
NIKON NIKKOR-S AUTO 5.8cm f/1.4— 7 ELEMENTS / 6 GROUPS, f = 58.0059 mm
JP 1968-030782↗1968Inventors: Zenji Wakimoto
NIKON NIKKOR-O 2.1cm f/4— 8 ELEMENTS / 4 GROUPS, f = 21.000 mm
JP S38-26133↗1963Inventors: Zenji Wakimoto
NIKON NIKKOR-H Auto 2.8cm f/3.5— 6 elements / 6 groups, f ≈ 28.0 mm
JP S42-9417↗1967Inventors: Zenji Wakimoto
NIKON UV-NIKKOR AUTO 55mm f/4— 3 elements / 3 groups, f ≈ 55.03 mm
JP S61-090115↗1986Inventors: Koichi Wakamiya
NIKON UV-NIKKOR 105mm f/4.5— 6 elements / 6 groups, f = 105 mm
Olympus Corporation(1)JP 2017-090535 A↗2017Inventors: Tetsuya Yanai, Toyonori Kon, Daichi Murakami, Yuki Kubota
OLYMPUS M.ZUIKO DIGITAL ED 12-100mm f/4.0 IS PRO— 12-100mm f/4.0, Patent f=12.36-97.98mm, F/4.08
Olympus Imaging Corporation(1)JP 2013-186458 A↗2013Inventors: Yasuharu Yamada, Daichi Murakami, Yuki Kubota
OLYMPUS M.ZUIKO DIGITAL 17mm f/1.8— 17mm f/1.8, Patent f = 17.30 mm / FNO = 1.716
Panasonic Intellectual Property Management Co., Ltd.(6)JP 2016-139125 A↗2016Inventors: Takuya Imaoka
LEICA APO-VARIO-ELMARIT-SL 90-280mm f/2.8-4— 23 ELEMENTS / 7 GROUPS (17 SUB-GROUPS), f = 92.3–272.9 mm
JP 2020-118738 A↗2020Inventors: Hiroaki Suzuki, Yuka Kudo, Yoshiaki Kurioka
PANASONIC LUMIX S 24-105mm f/4 MACRO O.I.S.— 16 ELEMENTS / 13 GROUPS, DESIGN f = 25.003-100.569 mm
JP 2021-076829 A↗2021Inventors: Takahiro Kitaguchi
PANASONIC LUMIX S PRO 16-35mm f/4— 12 LENS ELEMENTS / 9 GROUPS, 16.5534-33.8782 mm DESIGN
JP 2021-179551 A↗2021Inventors: Takahiro Kitada, Yuka Kudo, Masashi Sueyoshi, Jindong Li
PANASONIC LUMIX S 20-60mm f/3.5-5.6— 11 ELEMENTS / 9 GROUPS, f = 20.8–57.6 mm
JP 2022-099402 A↗2022Inventors: Takehiro Nishioka
HASSELBLAD XCD 90mm f/2.5 V— 9 ELEMENTS / 6 GROUPS, f ≈ 90.0 mm
JP 2022-125453 A↗2022Inventors: Takahiro Kitada, Takehiro Nishioka, Yoshio Matsumura, Takakazu Bito
PANASONIC LUMIX S 70-300mm f/4.5-5.6 MACRO O.I.S.— 17 ELEMENTS / 11 GROUPS, 7 ZOOM GROUPS (+/−/+/+/−/+/−)
Ricoh Co., Ltd.(5)JP 2010-72639 A↗2010Inventors: Yoshifumi Sudoh
RICOH GR LENS 6.0mm f/1.9 (Ricoh GR DIGITAL III)— 8 ELEMENTS / 6 GROUPS, 6.0 mm
JP 2010-164839 A↗2010Inventors: Yoshifumi Sudoh
RICOH GR LENS 6.0mm f/1.9 (Ricoh GR DIGITAL IV)— 8 ELEMENTS / 6 GROUPS, 6.0 mm
JP 2012-003015 A↗2012Inventors: Takashi Kubota
RICOH GR LENS A12 28mm f/2.5 (Ricoh GXR A12)— 8 ELEMENTS / 6 GROUPS, f = 18.28 mm (28 mm equiv.)
JP 2022-117775 A↗2022Inventors: Tomoya Koga, Yuichiro Ehashi, Takashi Enomoto
PENTAX HD D FA 21mm f/2.4 ED Limited DC WR— 11 elements / 8 groups, f = 21.32 mm design
JP 2025-069516 A↗2025Inventors: Takahiro Nakayama
RICOH GR LENS 18.3mm f/2.8 (Ricoh GR IV)— 7 ELEMENTS / 5 GROUPS, f ≈ 18.35 mm
Ricoh Imaging Company, Ltd.(4)JP 2015-11156 A↗2015Inventors: Takahiko Oishi
HD PENTAX-DA 20-40mm f/2.8-4 ED Limited DC WR— 9 ELEMENTS / 8 GROUPS, 20–40mm f/2.8–4 (production)
JP 2015-87681 A↗2015Inventors: Tatsuyuki Onozaki
HD PENTAX-DA645 28-45mm f/4.5 ED AW SR— 17 PHYSICAL LENSES / 12 GROUPS, 28-45mm f/4.5 MARKETED
JP 2016-6455 A↗2016Inventors: Tomoya Koga
HD PENTAX-DA 18-50mm f/4-5.6 DC WR RE— 11 ELEMENTS / 8 GROUPS, 18-50mm F4-5.6
JP 2016-114800 A↗2016Inventors: Yoichi Nomura
HD PENTAX-DA 16-85mm f/3.5-5.6 ED DC WR— 16 ELEMENTS / 12 GROUPS, 16-85mm f/3.5-5.6 (marketing)
Sigma Corporation(28)JP 2008-040033 A↗2008Inventors: Shizuka Yoshino
SIGMA 16.6mm f/4 (Sigma DP1x)— 6 elements / 5 groups, f = 16.6 mm (design 16.67 mm)
JP 2010-101979 A↗2010Inventors: Noriyuki Ogasawara
SIGMA 24mm f/2.8 (Sigma DP2x)— 7 ELEMENTS / 6 GROUPS, f ≈ 24.1 mm
JP 2012-058682 A↗2012Inventors: Noriyuki Ogasawara
SIGMA APO Macro 105mm f/2.8 EX DG OS HSM— 16 elements / 11 groups, 105 mm marketed; 101.71 mm design
JP 2012-063403 A↗2012Inventors: Yukihiro Yamamoto
SIGMA APO MACRO 150mm f/2.8 EX DG OS HSM— 19 elements / 13 groups, f = 149.99 mm design / 150 mm nominal
JP 2013-003324 A↗2013Inventors: Yutaka Kamimura
PANASONIC LEICA DG SUMMILUX 25mm f/1.4 ASPH— 9 ELEMENTS / 7 GROUPS, f ≈ 25.0 mm
JP 2013-104994 A↗2013Inventors: Kenta Fujita
SIGMA APO Macro 180mm f/2.8 EX DG OS HSM— 19 elements / 14 groups, 180 mm f/2.8 marketed; 174.60 mm f/2.92 design
JP 2013-156459 A↗2013Inventors: Tomoki Kono
SIGMA 30mm f/2.8 (Sigma DP2 Merrill)— 8 ELEMENTS / 6 GROUPS, f ≈ 29.6 mm
JP 2014-048488 A↗2014Inventors: Ryo Shioda
SIGMA 35mm f/1.4 DG HSM | Art— 13 elements / 11 groups, f = 35.16 mm design
JP 2014-126652 A↗2014Inventors: Noriyuki Ogasawara
SIGMA 50mm f/2.8 (Sigma DP3 Merrill)— 10 ELEMENTS / 8 GROUPS, f ≈ 48.7 mm
JP 2014-142520 A↗2014Inventors: Hiroki Uehara
SIGMA 30mm f/1.4 DC HSM | Art— 9 elements / 8 groups, f = 30.785 mm design
JP 2014-145954 A↗2014Inventors: Masakazu Hibino
SIGMA 60mm f/2.8 DN | Art— 8 elements / 6 groups, f = 60.00 mm patent design
JP 2015-114366 A↗2015Inventors: Ryo Shioda
SIGMA 50mm f/1.4 DG HSM | Art— 13 elements / 8 groups, f = 49.58 mm design
JP 2016-139087 A↗2016Inventors: Tomoki Kono, Noriyuki Ogasawara
SIGMA 14mm f/4 (Sigma dp0 Quattro)— 11 ELEMENTS / 8 GROUPS, f ≈ 13.97 mm
JP 2017-167327 A↗2017Inventors: Masakazu Hibino
PANASONIC LEICA DG SUMMILUX 12mm f/1.4 ASPH.— 15 elements / 12 groups, 12 mm nominal; f = 11.9795 mm design
JP 2018-005099 A↗2018Inventors: Yuki Ueda
SIGMA 85mm f/1.4 DG HSM | Art— 14 ELEMENTS / 12 GROUPS, f ≈ 83.4 mm
JP 2018-189733 A↗2018Inventors: Ryo Shioda
SIGMA 14-24mm f/2.8 DG HSM | Art— 17 elements / 11 groups, 14.50-23.15 mm design
JP 2018-205527 A↗2018Inventors: Hiromichi Ochiai, Ryosuke Sato
SIGMA 16mm f/1.4 DC DN | Contemporary— 16 elements / 13 groups, f = 16.446 mm design; 16 mm marketed
JP 2019-117419 A↗2019Inventors: Kenta Fujita
SIGMA 20mm f/1.4 DG HSM | Art— 15 elements / 11 groups, Patent f = 20.69 mm
JP 2019-144477 A↗2019Inventors: Yasumoto Oginome
SIGMA 105mm f/1.4 DG HSM | Art— 17 elements / 12 groups, f = 101.85 mm design
JP 2019-211703 A↗2019Inventors: Yukihiro Yamamoto
SIGMA 45mm f/2.8 DG DN | Contemporary— 8 elements / 7 groups, f = 43.93 mm design / 45 mm marketed
JP 2020-012952 A↗2020Inventors: Takeshi Yamanaka
SIGMA 40mm f/1.4 DG HSM | Art— 16 ELEMENTS / 12 GROUPS, f ≈ 41.2 mm
JP 2020-086133 A↗2020Inventors: Ryosuke Sato, Takehisa Koyama
PANASONIC LUMIX S PRO 70-200mm f/4 O.I.S.— 23 ELEMENTS / 17 GROUPS, DESIGN f = 72.50-193.95 mm
JP 2021-085935 A↗2021Inventors: Ryo Shioda
SIGMA 85mm f/1.4 DG DN | Art— 15 ELEMENTS / 11 GROUPS, f ≈ 82.96 mm (design)
JP 2022-033487 A↗2022Inventors: Ryo Shioda
SIGMA 35mm f/1.4 DG DN | Art— 15 ELEMENTS / 11 GROUPS, f ≈ 33.72 mm (35 mm marketed)
JP 2023-074094 A↗2023Inventors: Ryo Shioda
SIGMA 24mm f/1.4 DG DN | Art— 17 elements / 14 groups, f = 23.86 mm patent / 24 mm nominal
JP 2023-183894 A↗2023Inventors: Yukihiro Yamamoto
SIGMA 50mm f/1.4 DG DN | Art— 14 ELEMENTS / 11 GROUPS, f = 48.72 mm
JP 2024-035865 A↗2024Inventors: Kyosuke Murakami
SIGMA 23mm f/1.4 DC DN | Contemporary— 13 elements / 10 groups, f = 22.31 mm design; 23 mm marketed
JP 2024-104911 A↗2024Inventors: Ryo Shioda
SIGMA 10-18mm f/2.8 DC DN | Contemporary— 13 elements / 10 groups, 10.30-17.50 mm design EFL
Sony Corporation(4)JP 2012-159613 A↗2012Also assigned to: Tamron Co., Ltd.
Inventors: Takahiko Sakai, Masaharu Hosoi
SONY E 30mm f/3.5 Macro— 30 mm f/3.5 APS-C E-mount, JP 2012-159613 A Example 1
JP 2012-242690 A↗2012Also assigned to: Tamron Co., Ltd.
Inventors: Toshihide Hayashi, Naoki Miyagawa
SONY E 50mm f/1.8 OSS— 9 ELEMENTS / 8 GROUPS, 50mm MARKETED / 51.30mm DESIGN
JP 2015-041012 A↗2015Also assigned to: Tamron Co., Ltd.
Inventors: Takahiko Sakai
SONY SONNAR T* FE 35mm f/2.8 ZA— 7 ELEMENTS / 5 GROUPS, f ≈ 36.1 mm
JP 2015-166834 A↗2015Inventors: Masaharu Hosoi
SONY VARIO-TESSAR T* FE 16-35mm f/4 ZA OSS— 12 ELEMENTS / 10 GROUPS, PATENT f = 16.48 / 24.07 / 33.95 mm
Sony Group Corporation(3)JP 2022-030896 A↗2022Also assigned to: Tamron Co., Ltd.
Inventors: Junichi Yamazoe, Ryohei Tazaki
SONY FE 24mm f/2.8 G— 8 ELEMENTS / 7 GROUPS, Patent f = 24.710 mm
JP 2023-039817 A↗2023Inventors: Naoki Miyagawa, Shugo Takahashi
SONY FE 70-200mm f/2.8 GM OSS II— 17 ELEMENTS / 14 GROUPS, f = 72.1–194.0 mm
JP 2023-44106 A↗2023Inventors: Kohei Uemura, Tetsuichiro Okumura, Naoki Miyagawa
SONY FE PZ 16-35mm f/4 G— 13 ELEMENTS / 12 GROUPS, 16.48-33.96 mm PATENT ZOOM STATES
Tamron Co., Ltd.(12)JP 2003-329924 A↗2003Inventors: Yuichi Muramatsu
TAMRON SP AF 180mm f/3.5 Di LD [IF] MACRO 1:1 (B01)— 14 ELEMENTS / 11 GROUPS, PATENT f = 176.9587 mm; DATA SCALED TO 180 mm
JP 2003-344768 A↗2003Inventors: Akio Arakawa
TAMRON SP AF 200-500mm f/5-6.3 Di LD [IF]— 13 ELEMENTS / 10 GROUPS, 200-500mm f/5-6.3
JP 2004-101739 A↗2004Inventors: Yasuharu Yamada
MINOLTA AF 28-75mm f/2.8 (D)— 28-75mm f/2.8, 16 elements / 14 groups
JP 2012-159613 A↗2012Also assigned to: Sony Corporation
Inventors: Takahiko Sakai, Masaharu Hosoi
SONY E 30mm f/3.5 Macro— 30 mm f/3.5 APS-C E-mount, JP 2012-159613 A Example 1
JP 2012-242690 A↗2012Also assigned to: Sony Corporation
Inventors: Toshihide Hayashi, Naoki Miyagawa
SONY E 50mm f/1.8 OSS— 9 ELEMENTS / 8 GROUPS, 50mm MARKETED / 51.30mm DESIGN
JP 2013-254160 A↗2013Inventors: Noriyuki Adachi
TAMRON 28-300mm f/3.5-6.3 Di VC PZD— 19 ELEMENTS / 15 GROUPS, 28-300mm marketed; 28.776-291.262mm patent states
JP 2014-089352 A↗2014Inventors: Takahiko Sakai
SONY E 35mm f/1.8 OSS— 8 elements / 6 groups, f = 34.914 mm
JP 2014-209144 A↗2014Also assigned to: Nikon Corporation
Inventors: Taku Matsuo, Takeshi Suzuki, Haruo Sato, Hisayuki Yamanaka
NIKON AF-S NIKKOR 200-500mm f/5.6 E ED VR— 19 ELEMENTS / 12 GROUPS, f = 205–487 mm
JP 2015-041012 A↗2015Also assigned to: Sony Corporation
Inventors: Takahiko Sakai
SONY SONNAR T* FE 35mm f/2.8 ZA— 7 ELEMENTS / 5 GROUPS, f ≈ 36.1 mm
JP 2017-116646 A↗2017Inventors: Dayong Li
TAMRON 18-400mm f/3.5-6.3 Di II VC HLD— 16 ELEMENTS / 11 GROUPS, 18-400mm MARKETING / 18.5105-389.00mm PATENT
JP 2021-43375 A↗2021Inventors: Wataru Kusaka
TAMRON 70-180mm f/2.8 Di III VXD— 19 ELEMENTS / 14 GROUPS, 70-180mm f/2.8 MARKETED
JP 2022-030896 A↗2022Also assigned to: Sony Group Corporation
Inventors: Junichi Yamazoe, Ryohei Tazaki
SONY FE 24mm f/2.8 G— 8 ELEMENTS / 7 GROUPS, Patent f = 24.710 mm
Tamron Optical Foshan Co., Ltd.(1)JP 2012-181525 A↗2012Inventors: Nobuyuki Adachi, Hisayuki Yamanaka
TAMRON 18-200mm f/3.5-6.3 Di III VC (B011)— 17 ELEMENTS / 13 GROUPS, 18.50-194.00 mm PATENT EFL
Other jurisdictionsOTHER · 21 patentsCanon Inc.(1)JPS61-77818A1986Inventors: Keiji Ikemori, Sadatoshi Takahashi, Takashi Matsushita, Tsunefumi Tanaka, Nozomi Kitagishi
CANON EF 100-300mm f/5.6— 15 ELEMENTS / 9 GROUPS, 100-300mm f/5.6 (MARKETED)
Fumio Kondo(1)JP1955-0094721955Also assigned to: Tomokazu Kazamaki
Inventors: Tomokazu Kazamaki, Fumio Kondo
KONICA HEXANON 135mm f/3.5— 4 ELEMENTS / 4 GROUPS, f = 134.995mm DESIGN
Konishiroku Photo Industry Co., Ltd.(4)JP1974-0238921974Inventors: Masamichi Kitagawa
KONICA FL-HEXANON AR 300mm f/6.3— 9 ELEMENTS / 5 GROUPS, 300mm f/6.3 (MARKETED)
JP1976-0265351976Inventors: Toshiko Shimokura
KONICA UC HEXANON AR 28mm f/1.8— 8 ELEMENTS / 8 GROUPS, MODELED EFL 28.1585 mm
JPS51-37247A1976Inventors: Hideo Shizume
KONICA UC ZOOM HEXANON AR 80–200mm f/4— 14 ELEMENTS / 10 GROUPS, 80–200mm f/4
JPS5134741A1976Inventors: Tadashi Kojima
KONICA UC ZOOM HEXANON AR 45–100mm f/3.5— 11 ELEMENTS / 10 GROUPS, 45–100mm MARKETING / 46.76–99.18mm PATENT
Mamiya Koki Co., Ltd.(3)JP1978-0662221978Inventors: Katsunori Ebara
MAMIYA-SEKOR CS 35mm f/2.8— 6 ELEMENTS / 6 GROUPS, f = 34.988 mm (MODELED)
JP1981-119109 A1981Inventors: Yusuke Nanjo
MAMIYA-SEKOR ZOOM E 28-50mm f/3.5-4.5— 9 ELEMENTS / 8 GROUPS, 28-47.55 mm DESIGN / 28-50 mm MARKETED
JPS52-141223A1977Inventors: Yusuke Nanjo
MAMIYA-SEKOR SFC 150mm f/4 SOFT FOCUS— 5 ELEMENTS / 3 GROUPS, f = 150.026 mm (MODELED)
Minolta Camera Co., Ltd.(1)JP1988-201614 A1988Inventors: Hisashi Tokumaru
MINOLTA AF 35mm f/2— 7 ELEMENTS / 6 GROUPS, 35mm MARKETING / 35.0002mm MODELED
Minolta Co., Ltd.(5)JP1987-244010 A1987Inventors: Naoshi Okada, Hisashi Tokumaru
MINOLTA AF 100mm f/2— 7 ELEMENTS / 6 GROUPS, 100mm f/2
JP1989-039542 A1989Inventors: Hisashi Tokumaru, Masakuni Tai
MINOLTA AF 80-200mm f/2.8 APO— 16 ELEMENTS / 13 GROUPS, DESIGN 82-195mm
JP1994-082698 A1994Inventors: Yoshinobu Asakura
MINOLTA AF 28-70mm f/2.8 G— 16 ELEMENTS / 11 GROUPS, 4-GROUP N-P-N-P ZOOM
JP1996-327896 A1996Inventors: Yoshinobu Asakura
MINOLTA AF 400mm f/4.5 APO G— 8-ELEMENT / 6-GROUP PATENT MODEL, 390 mm PATENT HEADER / 391.43 mm COMPUTED EFL
JP1999-231209 A1999Inventors: Yoshinobu Kudo
MINOLTA AF 135mm f/2.8 [T4.5] STF— 8 ELEMENTS / 6 GROUPS, 135mm f/2.8 [T4.5] STF
Nikon Corporation(2)JPH04238311A1992Inventors: Susumu Sato
NIKON AF-I NIKKOR 600mm f/4D IF-ED— 9 ELEMENTS / 7 GROUPS, MARKETED 600mm f/4
JPH04294310A1992Inventors: Susumu Sato
NIKON AF-I NIKKOR 300mm f/2.8D IF-ED— 300mm f/2.8, PATENT F=293.9647mm / FN=2.9
Nippon Kogaku K.K.(1)JP1981-0351161981Inventors: Soichi Nakamura, Kazuo Arashida
NIKON AI NIKKOR 600mm f/5.6 IF-ED— 7 ELEMENTS / 6 GROUPS, 600mm f/5.6
Tokina Optical Co., Ltd.(1)JP1978-1296291978Inventors: Toshio Funejima, Hamao Inagaki
YASHICA ML 300mm f/5.6 C— 6 ELEMENTS / 3 GROUPS, 300mm f/5.6
Tomokazu Kazamaki(1)JP1955-0094721955Also assigned to: Fumio Kondo
Inventors: Tomokazu Kazamaki, Fumio Kondo
KONICA HEXANON 135mm f/3.5— 4 ELEMENTS / 4 GROUPS, f = 134.995mm DESIGN
Yashica Co., Ltd.(2)JP1969-0240681969Inventors: Iwatatsu Fujioka
YASHICA YASHINON-DX 21mm f/3.3— 8 ELEMENTS / 5 GROUPS, 21mm
JP1975-1103301975Inventors: Yoshisato Fujioka
YASHICA ML 24mm f/2.8— 9 ELEMENTS / 8 GROUPS, 24mm f/2.8
SwitzerlandCH · 1 patentCarl-Zeiss-Stiftung(1)CH 314381↗1956Inventors: Günther Lange, Robert Richter
CARL ZEISS TESSAR 50mm f/3.5— 4 ELEMENTS / 3 GROUPS, f ≈ 50.0 mm
United KingdomGB · 6 patentsAgfa Camera-Werk AG(1)GB 775,944↗1957AGFA COLOR-MAGNOLAR II 100mm f/4.5— 5 ELEMENTS / 3 GROUPS, f = 100.0 mm (scaled)
Nippon Kogaku K.K.(1)GB 1,050,055↗1966NIKON ULTRA-MICRO-NIKKOR 29.5mm f/1.2— 9 elements / 6 groups, f = 29.5 mm nominal; e-line EFL ≈ 29.11 mm
Pierre Angénieux(2)GB 673,358 A↗1952Inventors: Pierre Angénieux
P. ANGÉNIEUX RETROFOCUS TYPE R1 35mm f/2.5— 6 ELEMENTS / 5 GROUPS, 35mm MARKETING / 35.372mm DESIGN
GB 720,808↗1954Inventors: Pierre Angénieux
P. ANGÉNIEUX RETROFOCUS TYPE R11 28mm f/3.5— 6 ELEMENTS / 6 GROUPS, 28.000 mm DESIGN EFL
Ponder & Best, Inc.(1)GB 1,408,910↗1975Inventors: Ellis I. Betensky
VIVITAR SERIES 1 135mm f/2.3 AUTO TELEPHOTO— 6 ELEMENTS / 6 GROUPS, f = 135.21 mm
VEB Carl Zeiss Jena(1)GB 850,117↗1960Inventors: Eduard Hubert, Harry Zöllner
CARL ZEISS JENA PANCOLAR 50mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 50.6 mm
United StatesUS · 365 patentsAgfa Camera-Werk AG(2)US 2,745,315↗1956Inventors: Theodor Brendel
AGFA SOLAGON 50mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 50.08 mm
US 2,819,651↗1958Inventors: Carl Baur, Christian Otzen
AGFA COLOR-TELINEAR 90mm f/4— 5 elements / 3 groups, f ≈ 90.0 mm
Anhui Changgeng Optics Technology Co., Ltd.(1)US 2018/0149842 A1↗2018Inventors: Xiaohua Zhang
LAOWA 15mm f/2 Zero-D— Patent Example 1, 12 elements / 9 groups
Asahi Kogaku Kogyo Co., Ltd.(15)US 3,459,469↗1969Inventors: Yasuo Takahashi
PENTAX SUPER-TAKUMAR 135mm f/2.5— 5 ELEMENTS / 4 GROUPS, 135mm f/2.5 MARKETED
US 3,490,825↗1970Inventors: Yasuo Takahashi
PENTAX ULTRA-ACHROMATIC-TAKUMAR 85mm f/4.5— 5 ELEMENTS / 5 GROUPS, f = 85mm (PATENT f = 100mm × 0.85)
US 3,506,336↗1970Inventors: Yasuo Takahashi
PENTAX SUPER-TAKUMAR 35mm f/2— 8 ELEMENTS / 7 GROUPS, f = 35.000 mm
US 3,506,339↗1970Inventors: Tomokazu Kazamaki
PENTAX SUPER-TAKUMAR 28mm f/3.5— 7 ELEMENTS / 7 GROUPS, f = 28.000 mm
US 4,223,982↗1980Inventors: Takahiro Sugiyama
PENTAX 110 24mm f/2.8— 6 ELEMENTS / 5 GROUPS, f ≈ 24.0 mm
US 4,289,385↗1981Inventors: Masakazu Yamagata
PENTAX 110 50mm f/2.8— 5 ELEMENTS / 5 GROUPS, f ≈ 50.0 mm
US 4,447,137↗1984Inventors: Yasunori Arai
PENTAX SMC PENTAX-A★ 135mm f/1.8— 7 elements / 6 groups, f = 134.99 mm
US 4,487,485↗1984Inventors: Masaharu Hisada
PENTAX SMC A 645 45mm f/2.8— 45mm f/2.8, 9 elements / 8 groups
US 4,666,260↗1987Inventors: Takayuki Ito
PENTAX SMC PENTAX-A★ 200mm f/4 MACRO ED— 10 elements / 9 groups, f = 199.98 mm design
US 4,812,022↗1989Inventors: Shigetada Sato
SMC PENTAX-A ZOOM 35-70mm f/4— 7 ELEMENTS / 7 GROUPS, 35-70mm f/4 (MARKETED)
US 5,267,086↗1993Inventors: Hiroyuki Hirano
PENTAX F 85mm f/2.8 Soft— 5 ELEMENTS / 4 GROUPS, f ≈ 85.0 mm
US 5,822,132↗1998Inventors: Jun Hirakawa
PENTAX SMC PENTAX-FA 28mm f/2.8 Soft— 5 elements / 5 groups, f = 28 mm
US 6,002,533↗1999Inventors: Shuji Yoneyama
PENTAX SMC 67 Macro 100mm f/4— 6 elements / 4 groups, f = 99.97 mm
US 6,154,324↗2000Inventors: Masayuki Murata, Takayuki Ito
PENTAX SMC FA 645 120mm f/4 Macro— 9 elements / 7 groups, 120 mm marketed; 123.09 mm patent EFL
US 2001/0007512 A1↗2001Inventors: Takayuki Sensui
PENTAX HD D FA645 35mm f/3.5 AL [IF]— 10 PHYSICAL ELEMENTS / 8 PATENT GROUPS, PATENT DESIGN f = 36.000 mm
Canon Camera Co., Inc.(6)US 2,645,973↗1953Inventors: Hiroshi Ito
CANON SERENAR 85mm f/1.5— 7 ELEMENTS / 4 GROUPS, f ≈ 85.0 mm
US 2,645,974↗1953Inventors: Hiroshi Ito
CANON SERENAR 28mm f/3.5— 6 ELEMENTS / 4 GROUPS, f ≈ 28.0 mm
US 2,645,975↗1953Inventors: Hiroshi Ito
CANON SERENAR 35mm f/3.2— 6 ELEMENTS / 4 GROUPS, f ≈ 35.0 mm
US 2,681,594↗1954Inventors: Hiroshi Ito
CANON SERENAR 50mm f/1.8— 6 ELEMENTS / 4 GROUPS, f ≈ 50.0 mm
US 2,836,102↗1958Inventors: Hiroshi Ito
CANON 50mm f/1.2— 7 ELEMENTS / 5 GROUPS, 50 mm (DESIGN 50.513 mm)
US 2,838,978↗1958Inventors: Jiro Mukai
CANON 50mm f/2.8— 4 ELEMENTS / 3 GROUPS, EFL 50.0499 mm
Canon Inc.(58)US 3,748,021↗1973Inventors: Akira Tajima, Kikuo Momiyama
Canon FD 24mm f/2.8 S.S.C.— 24mm f/2.8, 9 elements / 8 groups
US 3,748,022↗1973Inventors: Akira Tajima
CANON FD 35mm f/2 S.S.C. (I)— 35mm f/2, 9 elements / 8 groups
US 4,046,459↗1977Inventors: Naoto Kawamura
Canon FD 28mm f/2.8 S.C.— 7 elements / 7 groups, 28 mm
US 4,110,006↗1978Inventors: Keiji Ikemori
CANON NEW FD 150-600mm f/5.6L— Telephoto zoom, 150–600 mm f/5.6, 19 elements / 15 groups
US 4,251,133↗1981Inventors: Sadahiko Tsuji
Canon FD 300mm f/4 S.S.C.— 6 elements / 6 groups, f ≈ 299.5 mm
US 4,364,643↗1982Inventors: Kikuo Momiyama
CANON New FD 50mm f/1.2— 7 elements / 6 groups, 46° field of view
US 4,364,644↗1982Inventors: Keiji Ikemori
CANON FD 50mm f/1.2 L— 8 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,717,245↗1988Inventors: Sadatoshi Takahashi
CANON EF 50mm f/1.0 L USM— 11 ELEMENTS / 9 GROUPS, f ≈ 50.0 mm
US 4,826,301↗1989Inventors: Keiji Ikemori
CANON EF 135mm f/2.8 Soft Focus— 7 ELEMENTS / 6 GROUPS, 135.043 mm DESIGN EFL
US 5,000,550↗1991Inventors: Sadatoshi Takahashi, Koutaro Yano, Hiroshi Endo
CANON EF 20-35mm f/2.8 L— 15 elements / 12 groups, 20.6-34.0 mm design zoom
US 5,899,585↗1999Inventors: Hideki Ogawa
CANON EF 28-80mm f/3.5-5.6 II— 10 ELEMENTS / 10 GROUPS, COMPUTED EFL 28.9689-76.9612 mm
US 6,061,180↗2000Inventors: Shingo Hayakawa
CANON EF 28-135mm f/3.5-5.6 IS USM— 16 elements / 12 groups, 28-135mm f/3.5-5.6 marketed; 28.891-131.182mm patent design
US 6,115,188 A↗2000Inventors: Akihiro Nishio, Hideki Ogawa, Makoto Misaka
CANON EF 300mm f/2.8 L IS USM— 15 ACTIVE ELEMENTS / 11 GROUPS, MODELED EFL ≈ 293.600 mmCANON EF 400mm f/2.8 L IS USM— 400mm f/2.8 (marketed), Patent f = 392.15 mm, F/2.9CANON EF 500mm f/4 L IS USM— 15 MODELED ELEMENTS / 11 GROUPS, PATENT f = 490.56 mm; ARRAY EFL ≈ 491.36 mmCANON EF 600mm f/4 L IS USM— 15 modeled elements / 11 groups, Patent f = 585.20 mm; computed EFL ≈ 585.328 mm
US 7,158,320 B2↗2007Inventors: Akihiro Nishio
CANON EF 100-300mm f/4.5-5.6 USM— 13 ELEMENTS / 10 GROUPS, 100-300mm MARKETED
US 7,864,451 B2↗2011Inventors: Yoshiyuki Taki
CANON EF 100mm f/2.8 L Macro IS USM— 15 elements / 12 groups, f = 99.996 mm design
US 8,736,971 B2↗2014Inventors: Takahiro Hatada
CANON EF 24-70mm f/2.8 L II USM— 18 elements / 13 groups, 24-70 mm f/2.8 marketed; 24.70-67.88 mm F/2.91 patent design
US 8,854,747 B2↗2014Inventors: Shunji Iwamoto
CANON EF-M 22mm f/2 STM— 7 elements / 6 groups, f = 21.79 mm design / 22 mm marketed
US 8,970,966 B2↗2015Inventors: Satoshi Maetaki
CANON EF 40mm f/2.8 STM— 6 ELEMENTS / 4 GROUPS, f ≈ 39.0 mm
US 10,571,651 B2↗2020Inventors: Hideki Sakai
CANON TS-E 50mm f/2.8L MACRO— 12 elements / 9 groups, f = 51.40 mm design
US 2002/0015231 A1↗2002Inventors: Hideki Ogawa
CANON EF 400mm f/4 DO IS USM— US 2002/0015231 A1 — Example 1, 15 modeled elements / 11 active groups
US 2004/0223070 A1↗2004Inventors: Takashi Shirasuna
CANON EF 28-105mm f/4-5.6— 10 ELEMENTS / 9 GROUPS, PATENT 28.91-101.32mm
US 2005/0286139 A1↗2005Inventors: Takeshi Nishimura
CANON EF-S 10-22mm f/3.5-4.5 USM— 13 elements / 10 groups, 10-22mm f/3.5-4.5
US 2006/0023317 A1↗2006Inventors: Makoto Fujimoto
CANON EF-S 17-85mm f/4-5.6 IS USM— 17 ELEMENTS / 12 GROUPS, 17-85mm MARKETED / 17.55-82.48mm DESIGN
US 2007/0058265 A1↗2007Inventors: Takeshi Nishimura
CANON EF-S 18-55mm f/3.5-5.6 IS— 11 elements / 9 groups, Design f = 18.693-53.300 mm
US 2008/0112063 A1↗2008Inventors: Takahiro Hatada
CANON EF-S 55-250mm f/4-5.6 IS— 12 ELEMENTS / 10 GROUPS, PATENT EFL 56.9-241.3 mm
US 2009/0296231 A1↗2009Inventors: Takashi Shirasuna
CANON EF 70-200mm f/2.8 L IS II USM— 23 elements / 19 groups, Patent f = 72.14-193.97 mm
US 2010/0033848 A1↗2010Inventors: Takahiro Hatada
CANON EF 24mm f/1.4 L II USM— 13 ELEMENTS / 10 GROUPS, f = 24.539 mm (DESIGN)
US 2011/0090576 A1↗2011Inventors: Shigenobu Sugita
CANON EF 400mm f/2.8 L IS II USM— 15 ACTIVE ELEMENTS / 11 GROUPS (G FILTER EXCLUDED), PATENT f = 392.15 mm; COMPUTED EFL 392.2607 mmCANON EF 600mm f/4 L IS II USM— 15 ACTIVE ELEMENTS / 11 GROUPS, f = 584.82 mm (MODELED)
US 2012/0013996 A1↗2012Inventors: Tetsuichiro Okumura
CANON EF 8-15mm f/4 L Fisheye USM— 14 elements / 11 groups, 8-15 mm marketed; 8.05-15.14 mm design
US 2013/0176385 A1↗2013Inventors: Hiroshi Saruwatari
CANON POWERSHOT G1 X 15.1-60.4mm f/2.8-5.8— 11 elements / 10 groups, Patent f = 15.57-58.93 mm
US 2013/0308041 A1↗2013Inventors: Takahiro Hatada
CANON EF 200-400mm f/4 L IS USM EXTENDER 1.4×— 24 ELEMENTS / 19 GROUPS (PATENT ACTIVE; REAR FILTER EXCLUDED), 200–400mm f/4 MARKETED
US 2013/0335830 A1↗2013Inventors: Yoshihisa Tashiro, Yasuaki Hagiwara
CANON EF-M 18-55mm f/3.5-5.6 IS STM— 13 ELEMENTS / 11 GROUPS, 18.58-53.36 mm DESIGN
US 2014/0098253 A1↗2014Inventors: Satoshi Maetaki
CANON EF-M 11-22mm f/4-5.6 IS STM— 12 ELEMENTS / 9 GROUPS, 11-22mm f/4-5.6 MARKETED
US 2014/0211029 A1↗2014Inventors: Tetsuichiro Okumura
CANON EF-S 55-250mm f/4-5.6 IS STM— 15 elements / 12 groups, 55-250mm f/4-5.6 marketed; 56.80-241.32mm patent design
US 2015/0146044 A1↗2015Inventors: Shigenobu Sugita
CANON EF 100-400mm f/4.5-5.6 L IS II USM— 21 ELEMENTS / 16 GROUPS, PATENT ZOOM POINTS 102.79-389.03 mm
US 2015/0146085 A1↗2015Inventors: Takahiro Hatada
CANON EF 11-24mm f/4 L USM— 16 elements / 11 groups, 11-24 mm f/4 marketed; 11.33-23.28 mm F/4.12 patent design
US 2015/0219882 A1↗2015Inventors: Shuichi Mogi
CANON 12.5-62.5mm f/2.0-3.9 (PowerShot G1 X Mark II)— 14 elements / 11 groups, Patent table f = 12.84-60.72 mm
US 2016/0062096 A1↗2016Inventors: Takahiro Hatada
CANON ZOOM LENS 8.8-36.8mm f/1.8-2.8 (PowerShot G7 X)— Patent f=9.06-35.69 mm, Marketed 8.8-36.8 mm
US 2016/0313535 A1↗2016Inventors: Makoto Nakahara
CANON EF-M 28mm f/3.5 Macro IS STM— Canon EF-M / APS-C, Patent f = 27.74 mm; recomputed f = 27.76 mm
US 2019/0041605 A1↗2019Inventors: Shinichiro Saito, Makoto Nakahara
CANON EF 400mm f/2.8 L IS III USM— 16 active elements / 12 groups (rear filter omitted), Patent f = 392.00 mm; traced EFL = 391.938 mmCANON EF 600mm f/4 L IS III USM— 17 ELEMENTS / 13 GROUPS PRODUCTION; 16 / 12 ACTIVE MODEL, 600mm f/4 MARKETED
US 2019/0265441 A1↗2019Inventors: Masato Katayose
CANON RF 50mm f/1.2 L USM— 15 ELEMENTS / 9 GROUPS, f ≈ 51.1 mm (marketed 50 mm)
US 2019/0278068 A1↗2019Inventors: Takahiro Hatada
CANON RF 24-105mm f/4 L IS USM— 18 ELEMENTS / 14 GROUPS, f = 24.72 – 101.84 mmCANON RF 24-70mm f/2.8 L IS USM— 21 ELEMENTS / 15 GROUPS, f = 24.7–67.9 mm
US 2020/0012073 A1↗2020Inventors: Satoshi Maetaki
CANON RF 85mm f/1.2 L USM— 14 ELEMENTS / 9 GROUPS, f ≈ 86.5 mm
US 2020/0142167 A1↗2020Inventors: Shohei Kikuchi
CANON RF 24-240mm f/4-6.3 IS USM— 21 ELEMENTS / 15 GROUPS, f ≈ 24.7–232.8 mm
US 2020/0257181 A1↗2020Inventors: Yuichi Gyoda
CANON RF 15-35mm f/2.8 L IS USM— 16 elements / 12 groups, 3 aspherical elements (6 surfaces)
US 2021/0003831 A1↗2021Inventors: Yasuaki Hagiwara
CANON RF 24-105mm f/4-7.1 IS STM— 13 ELEMENTS / 11 GROUPS, 24-105mm f/4-7.1 (MARKETED)
US 2021/0003832 A1↗2021Inventors: Masato Katayose, Junya Ichimura
CANON RF 100-500mm f/4.5-7.1 L IS USM— 20 ELEMENTS / 14 GROUPS, 100-500mm f/4.5-7.1 (MARKETED)
US 2021/0033835 A1↗2021Inventors: Makoto Nakahara
CANON RF 70-200mm f/4 L IS USM— 16 ELEMENTS / 11 GROUPS, 4 UD-CLASS ELEMENTS
US 2021/0072505 A1↗2021Inventors: Kana Kobayashi
CANON RF 85mm f/2 Macro IS STM— 12 ELEMENTS / 11 GROUPS, f ≈ 82.4 mm
US 2021/0263286 A1↗2021Inventors: Junya Ichimura
CANON RF 50mm f/1.8 STM— 6 ELEMENTS / 5 GROUPS, 50mm f/1.8 (MARKETED)
US 2022/0171174 A1↗2022Inventors: Takahiro Hatada
CANON RF 14-35mm f/4 L IS USM— 16 ELEMENTS / 12 GROUPS, 14–35mm f/4 (marketed)
US 2023/0213739 A1↗2023Inventors: Makoto Nakahara, Shinya Okuoka
CANON RF 24-50mm f/4.5-6.3 IS STM— 8 ELEMENTS / 8 GROUPS, f ≈ 24.7–48.5 mm
US 2023/0213745 A1↗2023Inventors: Takeharu Nakada
CANON RF 135mm f/1.8 L IS USM— 17 ELEMENTS / 12 GROUPS, f ≈ 130.9 mm
US 2024/0192474 A1↗2024Inventors: Shunji Iwamoto
CANON RF 24-105mm f/2.8 L IS USM Z— 23 ELEMENTS / 18 GROUPS, f = 24.78–102.06 mm
US 2024/0302626 A1↗2024Inventors: Takahiro Ode
CANON RF 35mm f/1.4 L VCM— 14 ELEMENTS / 11 GROUPS, 35 mm f/1.4 (marketing)
US 2024/0329367 A1↗2024Inventors: Yasuaki Hagiwara
CANON RF 28-70mm f/2.8 IS STM— 15 ELEMENTS / 12 GROUPS, f = 28.80–67.90 mm (2.36×)
US 2025/0251576 A1↗2025Inventors: Tomohiro Ino
CANON RF 50mm f/1.4 L VCM— 14 elements / 11 groups (15 material entries incl. resin cap), f = 48.50 mm patent / 50 mm marketed
US 2025/0389929 A1↗2025Inventors: Takahiro Saito
CANON RF 14mm f/1.4 L VCM— 18 ELEMENTS / 13 GROUPS, 14mm f/1.4 (marketed)CANON RF 20mm f/1.4 L VCM— Official: 15 elements / 11 groups; BR layer modeled separately, Patent Example 2: 16 optical members / 11 groups
Carl Zeiss AG(1)US 2018/0180842 A1↗2018Inventors: Marco Pretorius
CARL ZEISS DISTAGON T* 35mm f/2 (Zeiss ZX1)— 8 elements / 5 groups, f = 35.000 mm
Carl-Zeiss-Stiftung(4)US 3,038,380↗1962Inventors: Helmut Eismann, Günther Lange
CARL ZEISS B-DISTAGON 35mm f/4 (Contarex)— 7 elements / 4 groups, f = 35 mm
US 3,874,771↗1975Inventors: Karl-Heinrich Behrens, Erhard Glatzel
CARL ZEISS PLANAR T* 50mm f/1.4— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 3,915,558↗1975Inventors: Erhard Glatzel
CARL ZEISS DISTAGON T* 35mm f/1.4— 9 ELEMENTS / 8 GROUPS, f ≈ 36.5 mm
US 721,240↗1903Inventors: Paul Rudolph
CARL ZEISS JENA TESSAR 144mm f/5.5— 4 ELEMENTS / 3 GROUPS, f ≈ 144 mm (scaled from normalized patent)
Eastman Kodak Company(3)US 2,279,384↗1942Inventors: Fred E. Altman
KODAK ENLARGING EKTAR 100mm f/4.5— 5 ELEMENTS / 3 GROUPS, f ≈ 100.36 mm
US 2,518,719↗1950Inventors: Max Reiss
KODAK WIDE-FIELD EKTAR 100mm f/6.3— 4 elements / 4 groups, EFL 100.09 mm
US 2,983,193↗1961Inventors: Willy Schade
KODAK AERO EKTAR 6 in f/3.5— 6 ELEMENTS / 4 GROUPS, f = 152.58 mm
Enna-Werk Optische Anstalt Dr. Appelt K.G.(2)US 2,821,112↗1958Inventors: Johann Lautenbacher, Theodor Brendel
ENNA MÜNCHEN LITHAGON 35mm f/3.5— 4 elements / 4 groups, f ≈ 35.0 mm
US 2,959,100↗1960Inventors: Hans Lautenbacher
ENNA MÜNCHEN ULTRA-LITHAGON 28mm f/3.5— 6 elements / 6 groups, f ≈ 28.00 mm
Ernst Leitz GmbH(6)US 2,995,980↗1961Inventors: Otto Zimmermann, Georg Knetsch
LEICA ELMARIT 90mm f/2.8— 5 ELEMENTS / 3 GROUPS, f ≈ 90.1 mm
US 3,108,152↗1963Inventors: Eugen Hermanni
LEICA ELMARIT-M 135mm f/2.8— 5 elements / 4 groups, f ≈ 135.1 mm
US 3,552,833↗1971Inventors: Heinz Marquardt
LEICA MACRO-ELMARIT-R 60mm f/2.8— 6 elements / 5 groups, f = 61.4 mm design, 60 mm nominal
US 3,591,257↗1971Inventors: Walter Mandler, Garry Edwards, Erich Wagner
LEICA ELMARIT-R 28mm f/2.8— 8 ELEMENTS / 6 GROUPS, f = 28 mm (e-line trace ≈ 29.2 mm)
US 3,649,104↗1972Inventors: Garry Edwards, Walter Mandler, Erich Wagner
LEICA ELCAN 50mm f/2— 4 ELEMENTS / 4 GROUPS, f ≈ 50.0 mm
US 4,123,144↗1978Inventors: Walter Mandler, Garry Edwards, Erich Wagner
LEICA SUMMICRON-M 50mm f/2— 6 ELEMENTS / 4 GROUPS, f ≈ 50.0 mmLEICA SUMMICRON-R 50mm f/2— 6 elements / 4 groups, 52.5 mm design focal length
Fuji Photo Optical Co., Ltd.(8)US 4,018,512↗1977Inventors: Yutaka Sakai
FUJIFILM EBC FUJINON-W 35mm f/1.9— 8 elements / 6 groups, 35mm
US 4,195,912↗1980Inventors: Yoshikazu Doi, Yutaka Sakai, Kazunori Ohno
FUJIFILM FUJINON-Z 43-75mm f/3.5-4.5— 7 elements / 7 groups, 43-75mm marketed; 42.99-71.47mm computed
US 5,548,447↗1996Inventors: Nobuaki Toyama
FUJIFILM SUPER EBC FUJINON 60mm f/4 (Fujifilm GA645 Professional)— 7 elements / 6 groups, f = 59.998 mm (patent f=100 scaled ×0.6)
US 5,621,575↗1997Inventors: Nobuaki Toyama
FUJIFILM SUPER EBC FUJINON 45mm f/4 (Fujifilm GA645W/GA645Wi Professional)— 7 elements / 5 groups, 45mm f/4
US 6,445,511 B1↗2002Inventors: You Kitahara
HASSELBLAD HC 210mm f/4— 10 ELEMENTS / 6 GROUPS, f ≈ 210.0 mm
US 2001/0050819 A1↗2001Inventors: Kazunori Ohno
HASSELBLAD HC 80mm f/2.8— 6 ELEMENTS / 6 GROUPS, f ≈ 80.0 mm
US 2002/0075570 A1↗2002Inventors: Hiromitsu Yamakawa
HASSELBLAD HC 150mm f/3.2— 9 ELEMENTS / 8 GROUPS, f ≈ 150 mm
US 2003/0011895 A1↗2003Inventors: Masao Mori
HASSELBLAD HC 50mm f/3.5— 10 ELEMENTS / 9 GROUPS, f ≈ 50.0 mm
Fujifilm Corporation(33)US 10,191,246 B2↗2019Inventors: Hiroki Saito
FUJIFILM FUJINON GF 32-64mm f/4 R LM WR— 14 lens elements / 11 groups, 5 moving zoom groups: + - + - +
US 2012/0069456 A1↗2012Inventors: Takashi Suzuki
FUJIFILM FUJINON 23mm f/2 (Fujifilm X100)— 8 ELEMENTS / 6 GROUPS, f ≈ 23.7 mm
US 2014/0133036 A1↗2014Inventors: Taiga Noda, Michio Cho
FUJIFILM SUPER EBC FUJINON 7.1-28.4mm f/2-2.8 (Fujifilm X10)— 11 ELEMENTS / 9 GROUPS, DESIGN f = 7.342-27.682 mm
US 2014/0240851 A1↗2014Inventors: Daiki Kawamura
FUJIFILM FUJINON XF 18mm f/2 R— 8 ELEMENTS / 7 GROUPS, f ≈ 18.8 mm
US 2014/0247506 A1↗2014Inventors: Tetsuya Ori
FUJIFILM FUJINON XF 60mm f/2.4 R Macro— 10 ELEMENTS / 8 GROUPS, f = 61.06 mm (design)
US 2014/0285903 A1↗2014Inventors: Takashi Suzuki
FUJIFILM FUJINON XF 35mm f/1.4 R— 8 ELEMENTS / 6 GROUPS, f ≈ 36.17 mm
US 2014/0368926 A1↗2014Inventors: Takashi Suzuki
FUJIFILM FUJINON XF 23mm f/1.4 R— 11 ELEMENTS / 8 GROUPS, f ≈ 23.7 mm
US 2015/0212302 A1↗2015Inventors: Takashi Suzuki
FUJIFILM FUJINON XF 56mm f/1.2 R— 11 ELEMENTS / 8 GROUPS, f ≈ 56.99 mm
US 2015/0226942 A1↗2015Inventors: Takashi Suzuki
FUJIFILM TCL-X100 33mm f/2 (Fujifilm X100)— 12 ELEMENTS / 10 GROUPS, f = 32.818 mm (design)
US 2016/0154221 A1↗2016Inventors: Taiga Noda, Michio Cho
FUJIFILM FUJINON XF 16-55mm f/2.8 R LM WR— 17 ELEMENTS / 12 GROUPS, f = 16.5 – 53.4 mm (PATENT) / 16 – 55 mm (MARKETED)
US 2016/0274335 A1↗2016Inventors: Daiki Kawamura
FUJIFILM FUJINON XF 90mm f/2 R LM WR— 11 ELEMENTS / 8 GROUPS, f ≈ 87.5 mm (marketed 90 mm)
US 2017/0075089 A1↗2017Inventors: Ryosuke Nagami, Takashi Suzuki
FUJIFILM FUJINON 18.5mm f/2.8 (Fujifilm X70)— 7 ELEMENTS / 5 GROUPS, f ≈ 19.1 mm
US 2017/0090163 A1↗2017Inventors: Tetsuya Ori
FUJIFILM FUJINON XF 50-140mm f/2.8 R LM OIS WR— 23 ELEMENTS / 16 GROUPS, f = 50–140 mm (design 51.52–135.96 mm)
US 2017/0351051 A1↗2017Inventors: Daiki Kawamura
FUJIFILM FUJINON XF 23mm f/2 R WR— 10 elements / 6 groups, f = 22.377 mm design; 23 mm marketed
US 2018/0059384 A1↗2018Inventors: Taiga Noda
FUJIFILM FUJINON GF 120mm f/4 R LM OIS WR Macro— 14 ELEMENTS / 9 GROUPS, f ≈ 116.4 mm
US 2018/0100988 A1↗2018Inventors: Masato Kondo
FUJIFILM FUJINON GF 110mm f/2 R LM WR— 14 ELEMENTS / 9 GROUPS, f ≈ 108.5 mm
US 2018/0210178 A1↗2018Inventors: Hiroki Saito, Shunsuke Miyagishima
FUJIFILM FUJINON GF 23mm f/4 R LM WR— Patent Example 1: 14 elements / 11 groups, Production lens: 15 elements / 12 groups
US 2018/0246292 A1↗2018Inventors: Ryoko Tomioka, Daiki Kawamura
FUJIFILM FUJINON XF 80mm f/2.8 R LM OIS WR Macro— 16 elements / 12 groups, 1 aspherical (2 surfaces)
US 2019/0094496 A1↗2019Inventors: Shunsuke Miyagishima, Tetsuya Ori
FUJIFILM FUJINON GF 250mm f/4 R LM OIS WR— 16 ELEMENTS / 10 GROUPS, 250 mm f/4 (MARKETED)
US 2019/0265504 A1↗2019Inventors: Hiroki Saito
FUJIFILM FUJINON XF 200mm f/2 R LM OIS WR— 19 ELEMENTS / 14 GROUPS, f = 200 mm (200.0 marketed, 194.01 design)
US 2019/0361195 A1↗2019Inventors: Masato Kondo
FUJIFILM FUJINON GF 100-200mm f/5.6 R LM OIS WR— 20 elements / 13 groups, f = 101.68–203.35 mm (patent)
US 2020/0166735 A1↗2020Inventors: Daiki Kawamura, Taiga Noda
FUJIFILM FUJINON XF 16-80mm f/4 R OIS WR— 16 ELEMENTS / 12 GROUPS, f = 16.5–77.8 mm
US 2020/0174231 A1↗2020Inventors: Taiga Noda
FUJIFILM FUJINON GF 45mm f/2.8 R WR— 11 elements / 8 groups, f = 44.690 mm patent; 45 mm marketed
US 2020/0333569 A1↗2020Inventors: Masato Kondo
FUJIFILM FUJINON 23mm f/2 (Fujifilm X100V)— 8 ELEMENTS / 6 GROUPS, f ≈ 23.7 mm
US 2020/0379223 A1↗2020Inventors: Ryoko Tomioka
FUJIFILM FUJINON GF 45-100mm f/4 R LM OIS WR— 17 elements / 12 groups (patent), Production lens: 16 elements / 12 groups
US 2021/0231927 A1↗2021Inventors: Daiki Kawamura, Michio Cho
FUJIFILM FUJINON XF 50mm f/1.0 R WR— 12 elements / 9 groups, 1 aspherical element (2 aspherical surfaces)
US 2021/0294073 A1↗2021Inventors: Masato Kondo
FUJIFILM FUJINON GF 80mm f/1.7 R WR— 12 ELEMENTS / 9 GROUPS, f ≈ 78.7 mm
US 2022/0236544 A1↗2022Inventors: Ryosuke Nagami
FUJIFILM FUJINON GF 20-35mm f/4 R WR— 14 elements / 10 groups, f = 20.60-33.99 mm design; 20-35 mm marketedFUJIFILM FUJINON GF 35-70mm f/4.5-5.6 WR— 11 elements / 9 groups, f=35-70mm; design EFL 36.05-67.89mm
US 2022/0276464 A1↗2022Inventors: Taiga Noda, Ryoko Tomioka
FUJIFILM FUJINON XF 23mm f/1.4 R LM WR— 15 elements / 10 groups, Patent f = 23.62 mm scaled to 23.00 mmFUJIFILM FUJINON XF 33mm f/1.4 R LM WR— 33 mm APS-C standard prime, 15 elements / 10 groups
US 2023/0341664 A1↗2023Inventors: Yasutaka Shimada, Shunsuke Miyagishima
FUJIFILM FUJINON GF 55mm f/1.7 R WR— 55mm f/1.7, 14 elements / 10 groups
US 2025/0234079 A1↗2025Inventors: Yuya Hirakawa, Taiga Noda
FUJIFILM FUJINON XF 16-55mm f/2.8 R LM WR II— 16 elements / 11 groups, f = 16.50–53.40 mm patent design
US 2025/0362482 A1↗2025Inventors: Daiki Komatsu
FUJIFILM FUJINON 35mm f/4 (Fujifilm GFX100RF)— 10 elements / 8 groups, f = 34.846 mm
US 2026/0118637 A1↗2026Inventors: Taiga Noda
FUJIFILM FUJINON XF 23mm f/2.8 R WR— 23mm, f/2.8
Fujinon Corporation(1)US 2006/0209426 A1↗2006Inventors: Takashi Suzuki
HASSELBLAD HC 300mm f/4.5— 9 ELEMENTS / 7 GROUPS, f ≈ 292.0 mm
Hoya Corporation(4)US 7,411,746 B2↗2008Inventors: Koji Kato, Masakazu Saori
PENTAX DA 21mm f/3.2 AL Limited— 8 elements / 5 groups, f = 21.60 mm design; 21 mm nominal
US 7,542,219 B2↗2009Inventors: Masakazu Saori
PENTAX DA 70mm f/2.4 Limited— 6 elements / 5 groups, 70 mm (scaled from patent f=67.74)
US 7,715,118 B2↗2010Inventors: Koji Kato
PENTAX DA 35mm f/2.8 Macro Limited— 9 elements / 8 groups, 35 mm marketed; 34.41 mm patent EFL
US 7,804,652 B2↗2010Inventors: Masakazu Saori
PENTAX SMC DA 17-70mm f/4 AL [IF] SDM— 17 ELEMENTS / 12 GROUPS, DESIGN 17.50–67.89 mm
Jos. Schneider & Co., Optische Werke(1)US 3,376,091↗1968Inventors: Werner Wagner, Karl Heinrich Macher
SCHNEIDER-KREUZNACH SUPER-ANGULON 75mm f/5.6— 8 ELEMENTS / 4 GROUPS, f ≈ 75.1 mm
Jos. Schneider Optische Werke Kreuznach GmbH & Co. KG(3)US 4,773,745↗1988Inventors: Hiltrud Ebbesmeier née Schitthof
SCHNEIDER-KREUZNACH SUPER-SYMMAR HM 120mm f/5.6— 8 ELEMENTS / 6 GROUPS, f = 121.6 mm (SCALED PATENT MODEL)
US 5,870,234↗1999Inventors: Hiltrud Ebbesmeier née Schitthof
SCHNEIDER-KREUZNACH SUPER-SYMMAR XL 110mm f/5.6 ASPHERIC— 6 ELEMENTS / 5 GROUPS (PATENT), f ≈ 110.6 mm (e-line)
US 6,028,720↗2000Inventors: Rolf Wartmann, Udo Schauss
SCHNEIDER-KREUZNACH APO-SYMMAR 100mm f/5.6— 6 ELEMENTS / 4 GROUPS, f ≈ 103.0 mm (d-line)
Konica Minolta Advanced Layers, Inc.(1)US 8,767,319 B2↗2014Also assigned to: Nikon Corporation
Inventors: Yoshihito Souma, Satoru Shibata
NIKON AF-S NIKKOR 85mm f/1.4 G— 10 ELEMENTS / 9 GROUPS, f = 85.0 mm
Konica Minolta, Inc.(3)US 3,615,126↗1971Inventors: Tadashi Kojima
KONICA HEXANON 38mm f/2.8 (Konica C35)— 4 ELEMENTS / 3 GROUPS, f = 38mm nominal
US 4,170,403↗1979Inventors: Toshiko Shimokura
KONICA HEXANON AR 35mm f/2.8— 5 ELEMENTS / 5 GROUPS, f ≈ 35.00 mm
US 9,256,059 B2↗2016Also assigned to: Nikon Corporation
Inventors: Kana Inoue, Mamoru Terada, Haruo Sato
NIKON AF-S NIKKOR 18-35mm f/3.5-4.5 G ED— 12 elements / 8 groups, 18-35mm FX
Leica Camera AG(1)US 2022/0066176 A1↗2022Inventors: Stefan Roth, Kathrin Keller
LEICA APO-SUMMICRON-M 35mm f/2 ASPH.— 10 ELEMENTS / 5 GROUPS, f ≈ 34.8 mm (d-line)
Minolta Camera Co., Ltd.(1)US 4,806,003↗1989Inventors: Hiromu Mukai, Hisashi Tokumaru
MINOLTA AF 35mm f/1.4— 10 ELEMENTS / 8 GROUPS, 35mm MARKETED / 34.983 mm DESIGN
Minolta Co., Ltd.(11)US 3,589,798↗1971Inventors: Toshinobu Ogura
MINOLTA MC FISH-EYE ROKKOR-OK 16mm f/2.8— MINOLTA: 11 ELEMENTS / 8 GROUPS INCLUDING BUILT-IN FILTER, ACTIVE MODEL: 10 ELEMENTS / 7 GROUPS
US 4,124,276↗1978Inventors: Yukio Okano, Akiyoshi Nakamura, Toshinobu Ogura
MINOLTA VARISOFT ROKKOR 85mm f/2.8— 6 ELEMENTS / 5 GROUPS, f ≈ 85.0 mm (production) · 100.0 mm (patent)
US 4,182,550↗1980Inventors: Tamikazu Yamaguchi
MINOLTA MD ROKKOR 50mm f/1.4— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,258,985↗1981Inventors: Akiyoshi Nakamura
MINOLTA AF 28mm f/2— 9 elements / 9 groups, f = 28.0 mm
US 4,277,149↗1981Inventors: Kunihiko Konoma
MINOLTA MD ROKKOR 45mm f/2— 6 ELEMENTS / 5 GROUPS, f ≈ 45.0 mm
US 4,518,229↗1985Inventors: Mitsuo Yasukuni
MINOLTA AF APO TELE 300mm f/2.8— Patent Example 8: f = 295.0 mm, FN = 2.9, Marketed as 300mm f/2.8
US 4,560,253↗1985Inventors: Shuji Ogino
MINOLTA AF Zoom 35-70mm f/4— 6 components / 6 air-spaced groups, 7 modeled optical media including hybrid resin layer
US 4,764,000↗1988Inventors: Hisashi Tokumaru
MINOLTA AF 100mm f/2.8 Macro— 8 elements / 8 groups, f = 100.0 mm design
US 4,786,152↗1988Inventors: Tetsuya Arimoto
MINOLTA AF APO Tele 200mm f/2.8— 200mm f/2.8, 8 elements / 7 groups
US 4,871,239↗1989Inventors: Hisayuki Masumoto, Akira Fukushima
MINOLTA AF 35-105mm f/3.5-4.5 New (v2)— 35-105 mm full-frame A-mount zoom, Patent f = 36.0-60.0-102.0 mm
US 4,951,078↗1990Inventors: Takashi Okada
MINOLTA AF Reflex 500mm f/8— 500 mm f/8 fixed, f = 495.97 mm patent EFL
Nikon Corporation(60)US 4,806,000↗1989Inventors: Yoshiharu Shiokama, Naoto Ohta, Hiroshi Okano, Kiyotaka Inadome
NIKON AF ZOOM-NIKKOR 28-85mm f/3.5-4.5— 15 elements / 11 groups, computed f = 28.833-83.289 mm
US 4,908,639 A↗1990Inventors: Masaaki Yanagisawa
NIKON AF DC-NIKKOR 135mm f/2D— 7 ELEMENTS / 6 GROUPS, 135mm f/2
US 5,243,468↗1993Inventors: Motoyuki Ohtake
NIKON NIKKOR 35mm f/2.8 (Nikon 35Ti)— 6 ELEMENTS / 4 GROUPS, f ≈ 35.0 mm
US 5,257,137↗1993Inventors: Fumio Suzuki, Yoshinari Hamanishi
NIKON R-UW AF MICRO-NIKKOR 50mm f/2.8— 10 elements / 9 groups, f = 51.6 mm in water
US 5,276,553 A↗1994Inventors: Wataru Tatsuno
NIKON AI AF ZOOM-NIKKOR 20-35mm f/2.8D IF— 14 ELEMENTS / 11 AIR-SEPARATED UNITS / 4 ZOOM GROUPS, 20-35mm MARKETED / 20.5-34.0mm PATENT DESIGN
US 5,315,441↗1994Inventors: Kenji Hori, Wataru Tatsuno
NIKON AF NIKKOR 28mm f/1.4 D— 11 ELEMENTS / 8 GROUPS, f ≈ 28.6 mm
US 5,402,268↗1995Inventors: Wataru Tatsuno
NIKON AF MICRO-NIKKOR 200mm f/4D IF-ED— 13 ELEMENTS / 8 GROUPS, f = 200.1457 mm
US 5,434,713 A↗1995Inventors: Haruo Sato
NIKON AF FISHEYE-NIKKOR 16mm f/2.8D— 8 ELEMENTS / 5 GROUPS, DESIGN EFL 15.66855 mm
US 5,438,455 A↗1995Inventors: Masahiro Nakashima
NIKON AF-I NIKKOR 400mm f/2.8D IF-ED— 10 ELEMENTS / 7 GROUPS, 400mm f/2.8 MARKETED
US 5,485,314↗1996Inventors: Haruo Sato
NIKON AF ZOOM-NIKKOR 28-80mm f/3.3-5.6 G— 6 production elements / 6 air-spaced groups, Negative-positive two-group zoom
US 5,490,012↗1996Inventors: Kouichi Ohshita
NIKON R-UW AF ZOOM-NIKKOR 20-35mm f/2.8— 10 elements / 10 groups, f = 20.60-34.00 mm in water
US 5,528,428↗1996Inventors: Motoyuki Ohtake, Motohisa Mouri
NIKON NIKKOR 28mm f/2.8 (Nikon 28Ti)— 7 ELEMENTS / 5 GROUPS, f ≈ 28.9 mm
US 5,557,473↗1996Inventors: Yoshikazu Sugiyama, Haruo Sato
Nikon AF Nikkor 28mm f/2.8D— 6 elements / 6 groups, f = 28.60 mm
US 5,579,169↗1996Inventors: Motohisa Mouri
NIKON R-UW AF FISHEYE-NIKKOR 13mm f/2.8— 10 ELEMENTS / 7 GROUPS, f = 12.32 mm in water
US 5,579,171 A↗1996Inventors: Kenzaburo Suzuki, Masahiro Nakatsuji, Keiji Moriyama
NIKON AI AF ZOOM-NIKKOR 80-200mm f/2.8D ED— 16 ELEMENTS / 11 GROUPS, 80-200mm f/2.8 (MARKETED)
US 5,640,277↗1997Inventors: Kouichi Ohshita
NIKON AF NIKKOR 85mm f/1.4 D IF— 9 ELEMENTS / 8 GROUPS, f = 85.0 mm
US 5,717,527↗1998Inventors: Atsushi Shibayama
NIKON AF ZOOM-MICRO NIKKOR ED 70-180mm f/4.5-5.6D— 18 elements / 14 groups, Patent f = 82.4-194.0 mm
US 5,734,508 A↗1998Inventors: Haruo Sato
NIKON AI AF ZOOM-NIKKOR 24-120mm f/3.5-5.6 D IF— 15 ELEMENTS / 11 GROUPS, DESIGN f = 24.701-116.518 mm
US 5,745,306 A↗1998Inventors: Susumu Sato
NIKON AI AF-S NIKKOR ED 300mm f/2.8D IF— 11 ELEMENTS / 8 GROUPS, 3 ED ELEMENTSNIKON AI AF-S NIKKOR ED 500mm f/4D IF— 11 ELEMENTS / 9 GROUPS, 3 ED ELEMENTSNIKON AI AF-S NIKKOR ED 600mm f/4D II IF— 10 ELEMENTS / 7 GROUPS, 600 mm f/4 (marketed)
US 5,764,425↗1998Inventors: Kouichi Ohshita
NIKON Gugutto Macro 120mm f/4.5— 3 elements / 2 groups, 120mm f/4.5 fixed aperture
US 5,796,530↗1998Inventors: Kouichi Ohshita
NIKON Fuwatto Soft 90mm f/4.8— 1 group / 2 elements, f = 90.63 mm computed; 90 mm marketed
US 5,917,663↗1999Inventors: Kenzaburo Suzuki
NIKON AI NIKKOR 28mm f/2.8S— 8 elements / 8 groups, f = 28.610 mm
US 5,949,588↗1999Inventors: Kouichi Ohshita, Atsushi Shibayama
NIKON Gyogyotto 20mm f/8— 3 elements / 2 groups, f = 20.0 mm (scaled from patent f = 100)
US 6,141,156 A↗2000Inventors: Masayuki Aoki
NIKON AI AF VR ZOOM-NIKKOR 80-400mm f/4.5-5.6D ED— 17 ELEMENTS / 11 GROUPS, 80-400mm MARKETED (81.976-390.000mm EXAMPLE 4)
US 6,239,919 B1↗2001Inventors: Susumu Sato
NIKON AI AF-S NIKKOR ED 400mm f/2.8D II IF— 11 ELEMENTS / 9 GROUPS, 400 mm marketed / 391.999 mm design
US 6,320,698 B1↗2001Inventors: Kenzaburo Suzuki
NIKON AF ZOOM-NIKKOR 35-70mm f/2.8D— 15 elements / 12 groups, 35-70mm f/2.8
US 6,621,643 B2↗2003Inventors: Haruo Sato
NIKON AF ZOOM-NIKKOR 28-200mm f/3.5-5.6 G IF-ED— 12 physical elements / 11 groups (14 material layers modeled), Production: 28-200mm f/3.5-5.6
US 6,940,655 B2↗2005Inventors: Haruo Sato
NIKON AF-S DX ZOOM-NIKKOR 12-24mm f/4 G IF-ED— 11 GLASS ELEMENTS / 7 GROUPS, 12.3000-23.3001 mm DESIGN
US 7,161,746 B2↗2007Inventors: Keiko Mizuguchi
NIKON AF DX FISHEYE-NIKKOR 10.5mm f/2.8G ED— 10 elements / 7 groups, Patent f = 10.565 mm; marketed 10.5 mm
US 7,218,457 B2↗2007Inventors: Takayuki Sensui
NIKON AF-S VR MICRO-NIKKOR 105mm f/2.8 G IF-ED— 14 elements / 12 groups, 1 ED element (S-FPL51)
US 7,359,125 B2↗2008Inventors: Yoko Kimura, Haruo Sato
NIKON AF-S NIKKOR 14-24mm f/2.8 G ED— 15 ELEMENTS / 11 GROUPS, f = 14.4–23.8 mm
US 7,508,592 B2↗2009Inventors: Hiroki Harada
NIKON AF-S NIKKOR 24-70mm f/2.8 G ED— 24-70mm f/2.8 marketed; f=24.78-67.70mm, FNO=2.91 design, 15 elements / 11 groups production count
US 7,656,591 B2↗2010Inventors: Hiroshi Yamamoto
NIKON PC-E MICRO-NIKKOR 45mm f/2.8 D ED— 9 ELEMENTS / 8 GROUPS, f ≈ 41.2 mm (design) · 45 mm (marketed)
US 7,898,744 B2↗2011Inventors: Mitsuaki Wada
NIKON AF-S MICRO-NIKKOR 60mm f/2.8 G ED— 12 ELEMENTS / 9 GROUPS, f ≈ 58.0 mm (patent) / 60 mm (production)
US 8,416,506 B2↗2013Inventors: Tomoki Ito
NIKON AF-S NIKKOR 70-200mm f/2.8 G ED VR II— 70-200 mm f/2.8 FX telephoto zoom, Patent design: f = 71.40-196.00 mm, FNO = 2.89
US 8,416,512 B2↗2013Inventors: Hiroki Harada, Yasushi Yamamoto
NIKON AF-S NIKKOR 24mm f/1.4 G ED— 12 glass elements / 10 groups, Patent f = 24.68 mm
US 8,767,319 B2↗2014Also assigned to: Konica Minolta Advanced Layers, Inc.
Inventors: Yoshihito Souma, Satoru Shibata
NIKON AF-S NIKKOR 85mm f/1.4 G— 10 ELEMENTS / 9 GROUPS, f = 85.0 mm
US 9,256,059 B2↗2016Also assigned to: Konica Minolta, Inc.
Inventors: Kana Inoue, Mamoru Terada, Haruo Sato
NIKON AF-S NIKKOR 18-35mm f/3.5-4.5 G ED— 12 elements / 8 groups, 18-35mm FX
US 10,690,896 B2↗2020Inventors: Kosuke Machida, Takeshi Suzuki, Takeru Uehara
NIKON AF-P DX NIKKOR 18-55mm f/3.5-5.6 G VR— 12 elements / 9 groups (manufacturer count), 13 modeled optical material bodies
US 2003/0133200 A1↗2003Inventors: Susumu Sato
NIKON AF-S VR ZOOM-NIKKOR 70-200mm f/2.8G IF-ED— 21 ELEMENTS / 15 GROUPS, 70-200mm MARKETED; 71.4-196.0mm DESIGN
US 2004/0218274 A1↗2004Inventors: Misako Aoki
NIKON AF-S VR ZOOM-NIKKOR 24-120mm f/3.5-5.6G IF-ED— 15 ELEMENTS / 13 GROUPS, 24.720-116.500 mm DESIGN
US 2005/0013015 A1↗2005Inventors: Takayuki Sensui
NIKON AF-S DX ZOOM-NIKKOR 17-55mm f/2.8G IF-ED— 14 ELEMENTS / 10 GROUPS, 17.55-52.70 mm DESIGN
US 2005/0068636 A1↗2005Inventors: Satoshi Hayakawa
NIKON AF-S DX ZOOM-NIKKOR 18-70mm f/3.5-4.5G IF-ED— 15 elements / 13 groups (physical count), 18-70mm f/3.5-4.5 (production)
US 2005/0157403 A1↗2005Inventors: Susumu Sato
NIKON AF-S VR ZOOM-NIKKOR 200-400mm f/4G IF-ED— 24 ELEMENTS / 17 GROUPS, 200-400mm f/4 (MARKETED)
US 2006/0007559 A1↗2006Inventors: Haruo Sato
NIKON AF-S DX ZOOM-NIKKOR 18-55mm f/3.5-5.6G ED II— 7 ELEMENTS / 5 GROUPS, 18-55mm f/3.5-5.6 (MARKETED)
US 2006/0072213 A1↗2006Inventors: Atsushi Shibayama, Takeshi Suzuki, Tomoki Ito
NIKON AF-S DX VR ZOOM-NIKKOR 18-200mm f/3.5-5.6G IF-ED— 16 PHYSICAL ELEMENTS / 12 GROUPS, 18-200mm marketed; 18.50109-194.99580mm patent control points
US 2009/0190220 A1↗2009Inventors: Haruo Sato
NIKON AF-S DX MICRO-NIKKOR 85mm f/3.5G ED VR— 14 ELEMENTS / 10 GROUPS, 85 mm
US 2010/0220400 A1↗2010Inventors: Hiroshi Yamamoto, Satoshi Miwa, Takeshi Suzuki, Haruo Sato
NIKON AF-S NIKKOR 24-120mm f/4 G ED VR— 17 elements / 13 groups, 24-120 mm f/4 FX standard zoomNIKON AF-S NIKKOR 28-300mm f/3.5-5.6 G ED VR— 28-300mm FX superzoom, 19 glass elements / 14 production groups
US 2010/0238560 A1↗2010Inventors: Makoto Fujimoto
NIKON AF-S NIKKOR 16-35mm f/4 G ED VR— 17 ELEMENTS / 12 GROUPS, f = 16.48–33.94 mm
US 2011/0102905 A1↗2011Inventors: Hiroki Harada
NIKON AF-S DX NIKKOR 55-300mm f/4.5-5.6 G ED VR— 17 elements / 11 groups, 56.09-293.90 mm design EFL
US 2011/0170195 A1↗2011Inventors: Mami Muratani, Issei Tanaka
NIKON AF-S DX MICRO-NIKKOR 40mm f/2.8G— PATENT: 9 ELEMENTS / 8 GROUPS, PRODUCTION: 9 ELEMENTS / 7 GROUPS
US 2012/0019926 A1↗2012Inventors: Akira Yamagami
NIKON 1 NIKKOR VR 10-30mm f/3.5-5.6— 12 ELEMENTS / 9 GROUPS, 10.3-29.1 mm patent design
US 2015/0153549 A1↗2015Inventors: Mami Muratani
NIKON 1 NIKKOR 11-27.5mm f/3.5-5.6— 11-27.5mm CX-format zoom, Patent f = 11.35-26.71 mm
US 2018/0031811 A1↗2018Inventors: Satoshi Miwa, Masashi Yamashita
NIKON AF-S NIKKOR 600mm f/4E FL ED VR— 16 IMAGING ELEMENTS / 12 GROUPS + PROTECTIVE MENISCUS, 2 FLUORITE / 4 ED (PRODUCTION SPECIFICATION)
US 2019/0353880 A1↗2019Inventors: Kosuke Machida
NIKON AF-P NIKKOR 70-300mm f/4.5-5.6 E ED VR— 18 elements / 14 groups, Patent design f=72.10-292.01 mm
US 2020/0049962 A1↗2020Inventors: Tomoki Ito
NIKON AF-S NIKKOR 80-400mm f/4.5-5.6 G ED VR— 20 ELEMENTS / 12 GROUPS, f = 80–400 mm (design 81.6–392.0 mm)
US 2020/0142168 A1↗2020Inventors: Hiroki Harada
NIKON AF-S NIKKOR 24-70mm f/2.8 E ED VR— 20 ELEMENTS / 16 GROUPS, f = 24–70 mm
US 2020/0348497 A1↗2020Inventors: Akihiko Obama, Masashi Yamashita
NIKON 1 NIKKOR VR 10-100mm f/4-5.6— 10-100mm marketed range, f/4-5.6 marketed maximum aperture
US 2021/0026133 A1↗2021Inventors: Masashi Yamashita, Tomoki Ito, Hiroshi Yabumoto, Hiroshi Yamamoto, Satoshi Miwa, Keisuke Tsubonoya, Ayumu Makida, Takeru Uehara
NIKON AF-P DX NIKKOR 70-300mm f/4.5-6.3 G ED VR— 70-300 mm marketed; 72.1-292.1 mm patent, f/4.5-6.3 marketed; f/4.707-6.494 patent
US 2026/0056396 A1↗2026Inventors: Takeru Uehara
NIKON NIKKOR Z DX 12-28mm f/3.5-5.6 PZ VR— 12 elements / 11 groups, Patent f = 12.36-27.16 mm
Nippon Kogaku K.K.(31)US 2,828,671↗1958Inventors: Saburo Murakami
NIKON NIKKOR-N 5cm f/1.1— 9 elements / 6 groups, Modified double-Gauss
US 2,896,506↗1959Inventors: Hideo Azuma
NIKON W-NIKKOR 35mm f/1.8— 7 elements / 5 groups, f = 35.005 mm
US 3,507,556↗1970Inventors: Yoshiyuki Shimizu
NIKON REFLEX-NIKKOR 1000mm f/11— 5 elements / 5 groups, f ≈ 1001.4 mm
US 3,507,558↗1970Inventors: Yoshiyuki Shimizu
NIKON AI NIKKOR 35mm f/2— 35 mm, f/2
US 3,524,697↗1970Inventors: Masaki Isshiki, Keiji Matsuki
NIKON FISHEYE-NIKKOR 6mm f/5.6— 9 elements / 6 groups, f ≈ 6.00 mm
US 3,560,079↗1971Inventors: Zenji Wakimoto, Yoshiyuki Shimizu
NIKON NIKKOR-S AUTO 50mm f/1.4— 7 ELEMENTS / 5 GROUPS, f ≈ 50.0 mm
US 3,576,360↗1971Inventors: Yoshiyuki Shimizu
NIKON AI NIKKOR 35mm f/1.4S— 9 elements / 7 groups, 35.0 mm design EFL
US 3,615,125↗1971Inventors: Takashi Higuchi, Soichi Nakamura
NIKON ZOOM-NIKKOR AUTO 80-200mm f/4.5— 15 elements / 10 groups, computed f = 80.009–200.341 mm
US 3,632,190↗1972Inventors: Yoshiyuki Shimizu
NIKON REFLEX-NIKKOR·C 500mm f/8— 500 mm nominal focal length, f/8 marketed, F/7 geometric prescription
US 3,736,049↗1973Inventors: Yoshiyuki Shimizu
NIKON NIKKOR-N AUTO 28mm f/2— 9 ELEMENTS / 8 GROUPS, f ≈ 27.8 mm (design)
US 3,737,214↗1973Inventors: Yoshiyuki Shimizu
NIKON FISHEYE-NIKKOR 6mm f/2.8— 12 elements / 9 groups, 6 mm circular fisheye
US 3,743,384↗1973Inventors: Soichi Nakamura
Nikon AI Zoom-Nikkor 360-1200mm f/11 ED— 20 elements / 12 groups, 360-1200 mm
US 4,057,330↗1977Inventors: Sei Matsui
NIKON AI NIKKOR 135mm f/2.8— 5 elements / 4 groups, f/2.8–f/32 · 7 blades
US 4,062,630↗1977Inventors: Sei Matsui
NIKON AI NIKKOR 135mm f/2— 6 elements / 4 groups, Ai Nikkor 135mm f/2 (1977–2005)
US 4,099,850↗1978Inventors: Sei Matsui
NIKON AI NIKKOR 28mm f/3.5— 6 elements / 6 groups, f ≈ 28.00 mm
US 4,163,603↗1979Inventors: Teruyoshi Tsunashima
NIKON AI NIKKOR 24mm f/2— 11 elements / 10 groups, f ≈ 24.0 mm
US 4,189,212↗1980Inventors: Norio Mizutani, Soichi Nakamura
Nikon AI Zoom-Nikkor 25-50mm f/4— 25-50 mm f/4, 11 elements / 10 groups
US 4,223,981↗1980Inventors: Norio Mizutani, Yoshinari Hamanishi
NIKON AI ZOOM-NIKKOR 80-200mm f/4.5— 12 ELEMENTS / 9 GROUPS, COMPUTED EFL 80.102-199.912 mm
US 4,266,860↗1981Inventors: Kiyoshi Hayashi
Nikon AI-S Zoom-Nikkor 35–70mm f/3.5— 10 elements / 9 groups, f = 36.02–68.79 mm design; marketed 35–70 mm
US 4,303,314↗1981Inventors: Sei Matsui
NIKON SERIES E 100mm f/2.8— 4 elements / 4 groups, f = 100.02 mmNIKON SERIES E 135mm f/2.8— 4 ELEMENTS / 4 GROUPS, f ≈ 135.1 mm
US 4,338,001↗1982Inventors: Sei Matsui
NIKON AI NIKKOR 180mm f/2.8 ED— 5 elements / 5 groups, f = 180.00 mm, scaled from patent f = 100
US 4,392,724↗1983Inventors: Yoshinari Hamanishi
Nikon AI Micro-Nikkor 105mm f/2.8S— 10 elements / 9 groups, f = 105.003 mm
US 4,396,256↗1983Inventors: Daijiro Fujie
NIKON AI NIKKOR 85mm f/1.4 S— 7 ELEMENTS / 5 GROUPS, f ≈ 85.0 mm
US 4,452,513↗1984Inventors: Yoshinari Hamanishi
NIKON AI ZOOM-NIKKOR 80-200mm f/4— 13 ELEMENTS / 9 GROUPS, 80-200mm f/4 (MARKETED)
US 4,457,596↗1984Inventors: Koichi Wakamiya
NIKON 35mm f/2.8 (Nikon L35AF)— 5 ELEMENTS / 4 GROUPS, f ≈ 35.0 mm
US 4,497,547↗1985Inventors: Kiyoshi Hayashi
Nikon AI Zoom-Nikkor 50-135mm f/3.5S— 16 elements / 13 groups, 51.35-131.5 mm design EFL
US 4,621,909↗1986Inventors: Yoshinari Hamanishi
NIKON AI-S NIKKOR 50mm f/1.2— 7 elements / 6 groups, f = 51.6 mm design / 50 mm nominal
US 4,666,259 A↗1987Inventors: Yutaka Iizuka
NIKON REFLEX-NIKKOR 500mm f/8 (New)— 6 elements / 6 groups, f = 499.482 mm
US 4,690,517↗1987Inventors: Daijiro Fujie
Nikon AF Nikkor 20mm f/2.8D— 20mm, f/2.8
US 4,699,475↗1987Inventors: Tomowaki Takahashi, Yasuhiro Aono
Nikon AI Zoom-Nikkor 35–105mm f/3.5–4.5S— 16 elements / 12 groups, 35–105 mm
US 4,770,511↗1988Inventors: Yasuo Yonezawa, Yasuhiro Aono, Tomowaki Takahashi
Nikon AI Zoom-Nikkor 35-200mm f/3.5-4.5S— 17 elements / 13 groups, f = 36.23-194.85 mm computed
Nittoh Inc.(2)US 2020/0192060 A1↗2020Inventors: Akira Sawamoto
HASSELBLAD XCD 120mm f/3.5 Macro— 10 ELEMENTS / 7 GROUPS, f = 120.0 mm
US 2020/0319427 A1↗2020Inventors: Takuya Yazaki
HASSELBLAD XCD 65mm f/2.8— 10 ELEMENTS / 6 GROUPS, f ≈ 65.0 mm
Olympus Corporation(2)US 7,408,719 B2↗2008Inventors: Takeshi Hosoya
OLYMPUS ZUIKO DIGITAL ED 150mm f/2.0— 11 elements / 9 groups, f = 149.50 mm patent EFL
US 2015/0168697 A1↗2015Inventors: Yasuji Ogata
OLYMPUS M.ZUIKO DIGITAL ED 40-150mm f/2.8 PRO— 16 ELEMENTS / 10 GROUPS, f = 40.81–147.00 mm (3.60×)
Olympus Imaging Corporation(6)US 7,583,450 B2↗2009Inventors: Atsujiro Ishii
OLYMPUS ZUIKO DIGITAL ED 12-60mm f/2.8-4.0 SWD— 12-60mm Four Thirds standard zoom, Patent f = 12.33 / 26.62 / 58.81mm
US 8,081,392 B2↗2011Inventors: Atsujiro Ishii, Yoshiaki Shimizu
OLYMPUS ZUIKO DIGITAL ED 14-35mm f/2.0 SWD— 18 elements / 17 groups, 14–35 mm f/2.0 marketed; 14.22–34.28 mm patent
US 8,248,716 B2↗2012Inventors: Kazuteru Kawamura, Keitaro Yokoyama
OLYMPUS M.ZUIKO DIGITAL ED 12mm f/2.0— 11 elements / 8 production groups (9 patent groups), f = 12.187 mm design
US 8,755,132 B2↗2014Inventors: Yasuharu Yamada, Hirohiko Kimata
OLYMPUS M.ZUIKO DIGITAL 17mm f/2.8— 6 elements / 4 groups, f = 17 mm (design 17.30 mm)
US 8,994,842 B2↗2015Inventors: Toshio Takahashi, Hiroshi Kodama, Kento Hara, Kazumi Ito
OLYMPUS M.ZUIKO DIGITAL 14-42mm f/3.5-5.6 II R— 8 elements / 7 groups, 14-42mm f/3.5-5.6
US 2014/0139720 A1↗2014Inventors: Yasuji Ogata, Yasuharu Yamada, Akiyoshi Tochigi, Keitaro Yokoyama
OLYMPUS M.ZUIKO DIGITAL ED 12-40mm f/2.8 PRO— 14 ELEMENTS / 9 GROUPS, f = 12.25–39.10 mm
Olympus Optical Co., Ltd.(19)US 3,743,387↗1973Inventors: Jihei Nakagawa
OLYMPUS G.ZUIKO AUTO-S 55mm f/1.2— 7 ELEMENTS / 6 GROUPS, f ≈ 55.0 mm
US 3,804,494↗1974Inventors: Keiichi Ito
OLYMPUS F.ZUIKO AUTO-T 200mm f/5— 6 elements / 5 groups, f ≈ 200.02 mm
US 3,830,559↗1974Inventors: Masaki Matsubara
OLYMPUS OM J. ZUIKO AUTO-W 24mm f/2— 10 ELEMENTS / 8 GROUPS, f ≈ 24.0 mm
US 3,838,911↗1974Inventors: Yoshitsugi Ikeda
OLYMPUS E.ZUIKO AUTO-T 135mm f/3.5— 5 ELEMENTS / 4 GROUPS, f ≈ 135.0 mm
US 3,850,509↗1974Inventors: Jihei Nakagawa
OLYMPUS OM ZUIKO 16mm f/3.5 Fisheye— 11 ELEMENTS / 8 GROUPS, f ≈ 16.0 mm
US 3,862,794 A↗1975Inventors: Toru Fujii
OLYMPUS ZUIKO AUTO-W 28mm f/2— 9 ELEMENTS / 8 GROUPS, f = 28.000 mm
US 3,884,556↗1975Inventors: Jihei Nakagawa
OLYMPUS G.ZUIKO AUTO-W 21mm f/3.5— 7 ELEMENTS / 7 GROUPS, f ≈ 21.00 mmOLYMPUS H.ZUIKO AUTO-W 24mm f/2.8— 8 ELEMENTS / 7 GROUPS, f = 23.999 mm
US 3,994,574↗1976Inventors: Jihei Nakagawa
OLYMPUS H.ZUIKO AUTO-W 24mm f/2.8 (US 3,994,574 Design)— 8 ELEMENTS / 7 GROUPS, f = 23.99995 mm
US 4,025,167↗1977Inventors: Yoshitsugi Ikeda
OLYMPUS ZUIKO AUTO-ZOOM 85-250mm f/5— 15 elements / 11 groups, 85-250mm
US 4,029,397↗1977Inventors: Nobuo Yamashita
OLYMPUS ZUIKO AUTO-W 18mm f/3.5— 11 ELEMENTS / 9 GROUPS, 18.03 mm PARAXIAL EFL
US 4,063,802↗1977Inventors: Toshihiro Imai, Yoshitsugi Ikeda
OLYMPUS ZUIKO AUTO-T 85mm f/2— 5 ELEMENTS / 4 GROUPS, f ≈ 85.0 mm
US 4,094,588↗1978Inventors: Jihei Nakagawa
OLYMPUS G.ZUIKO AUTO-S 50mm f/1.4— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,099,843↗1978Inventors: Toshihiro Imai
OLYMPUS ZUIKO AUTO-S 50mm f/1.2— 7 ELEMENTS / 6 GROUPS, f ≈ 50.0 mm
US 4,210,388↗1980Inventors: Yoshitsugi Ikeda
OLYMPUS OM ZUIKO AUTO-W 21mm f/2— 11 ELEMENTS / 9 GROUPS, f ≈ 21 mm (marketed) / 28.5 mm (computed)
US 4,235,521↗1980Inventors: Toshihiro Imai
OLYMPUS F.ZUIKO 35mm f/2.8 (Olympus XA)— 6 ELEMENTS / 5 GROUPS, f ≈ 35.0 mm
US 4,568,150↗1986Inventors: Kazuo Ikari, Toru Fujii
OLYMPUS OM-SYSTEM ZUIKO AUTO-ZOOM 65-200mm f/4— 14 elements / 11 groups, f = 66.923-194.149 mm design
US 4,708,445↗1987Inventors: Hisashi Goto
OLYMPUS ZUIKO AUTO-MACRO 50mm f/2— 9 ELEMENTS / 7 GROUPS, f ≈ 50.0 mm
US 4,792,219↗1988Inventors: Shin-ichi Mihara
OLYMPUS ZUIKO AUTO-MACRO 90mm f/2— 9 ELEMENTS / 9 GROUPS, f ≈ 90.0 mm
US 2003/0072086 A1↗2003Inventors: Tsutomu Uzawa, Masahiro Suzuki
OLYMPUS ZUIKO 9-36mm f/2-2.4 (Olympus E-10 / E-20)— 14 powered elements / 11 powered groups, f = 9.200-35.500 mm patent design
Panasonic Corporation(3)US 2010/0194930 A1↗2010Inventors: Kyoichi Miyazaki, Keiichi Zaitsu
PANASONIC LUMIX G VARIO 7-14mm f/4 ASPH.— 16 elements / 12 groups, 7.2006-13.6229 mm patent EFL
US 2012/0147254 A1↗2012Inventors: Nobuyuki Adachi, Takuya Imaoka
PANASONIC LUMIX G FISHEYE 8mm f/3.5— 10 ELEMENTS / 9 GROUPS, f = 7.850 mm patent / 8 mm marketed
US 2013/0148006 A1↗2013Inventors: Shunichiro Yoshinaga, Kyoichi Miyazaki, Takao Yamanaka, Keiichi Zaitsu
PANASONIC LUMIX G 14mm f/2.5 II ASPH— 6 elements / 5 groups, f = 14.5456 mm design; 14 mm nominal
Panasonic Intellectual Property Management Co., Ltd.(9)US 2015/0192839 A1↗2015Inventors: Kyoichi Miyazaki
PANASONIC LEICA DG NOCTICRON 42.5mm f/1.2 ASPH POWER O.I.S.— 14 elements / 11 groups, f = 41.6508 mm patent; 42.5 mm marketed
US 2015/0268449 A1↗2015Inventors: Yoshiaki Kurioka, Takehiro Nishioka
PANASONIC LEICA DG SUMMILUX 15mm f/1.7 ASPH— 9 ELEMENTS / 7 GROUPS, f ≈ 15.5 mm
US 2016/0266350 A1↗2016Inventors: Tomoko Iiyama, Masafumi Sueyoshi
LEICA SUMMILUX 28mm f/1.7 ASPH. (Leica Q, Q2, Q3)— 11 ELEMENTS / 9 GROUPS, f ≈ 27.08 mm
US 2017/0059832 A1↗2017Inventors: Shunichiro Yoshinaga
PANASONIC LUMIX G 25mm f/1.7 ASPH.— 8 elements / 7 groups, f = 25.878 mm design / 25 mm nominal
US 2020/0341238 A1↗2020Inventors: Hideki Kai
LEICA ELMARIT-TL 18mm f/2.8 ASPH.— 8 GLASS ELEMENTS / 6 GROUPS, f = 18.4556 mm design
US 2021/0055531 A1↗2021Inventors: Genki Nakazawa, Takao Yamanaka, Yoshiaki Kurioka
PANASONIC LUMIX S PRO 24-70mm f/2.8— 18 ELEMENTS / 16 GROUPS, DESIGN 24.840-67.551 mm
US 2021/0132345 A1↗2021Inventors: Takehiro Nishioka, Hisayuki Ii
PANASONIC LUMIX S PRO 70-200mm f/2.8 O.I.S.— 22 ELEMENTS / 17 GROUPS, MODELED f = 72.46–193.02 mm
US 2023/0367186 A1↗2023Inventors: Yuka Ikegami, Takahiro Kitada, Kunio Dohno
PANASONIC LEICA DG SUMMILUX 9mm f/1.7 ASPH— 12 ELEMENTS / 9 GROUPS, f ≈ 9.35 mm
US 2024/0241349 A1↗2024Inventors: Takehiro Nishioka, Yoshiaki Kurioka
LEICA APO-SUMMICRON 43mm f/2 ASPH. (Leica Q3 43)— 11 ELEMENTS / 8 GROUPS, f ≈ 41.7 mm
Pentax Corporation(5)US 6,560,042 B2↗2003Inventors: Masayuki Murata, Takayuki Ito
PENTAX FA 31mm f/1.8 AL Limited— 9 ELEMENTS / 7 GROUPS, f ≈ 31.8 mm
US 7,106,520 B2↗2006Inventors: Masakazu Saori
PENTAX SMC DA 16-45mm f/4 ED AL— 13 ELEMENTS / 10 GROUPS, 16-45 mm f/4 MARKETING
US 7,289,274 B1↗2007Inventors: Masakazu Saori
PENTAX DA* 50-135mm f/2.8 ED [IF] SDM— 18 ELEMENTS / 14 GROUPS, f = 51.5–131.0 mm (patent) / 50–135 mm (marketing)
US 7,301,711 B2↗2007Inventors: Masakazu Saori
PENTAX DA* 16-50mm f/2.8 ED AL[IF] SDM— 15 ELEMENTS / 12 GROUPS, f = 16.48–48.50 mm (2.94×)
US 7,307,794 B2↗2007Inventors: Masakazu Saori
PENTAX SMC DA 18-55mm f/3.5-5.6 AL— 12 ELEMENTS / 9 GROUPS, 18-55mm f/3.5-5.6 (marketing)
Pentax Ricoh Imaging Company, Ltd.(3)US 8,422,143 B2↗2013Inventors: Masakazu Saori
PENTAX SMC D FA645 25mm f/4 AL[IF] SDM AW— 12 REFRACTIVE ELEMENTS / 7 MODELED GROUPS, f = 25.6946 mm (DESIGN)
US 8,824,059 B2↗2014Inventors: Koji Kato, Masakazu Saori
PENTAX-02 STANDARD ZOOM 5-15mm f/2.8-4.5— 8 ELEMENTS / 7 PHYSICAL GROUPS, MARKETED 5-15mm f/2.8-4.5
US 2013/0222925 A1↗2013Inventors: Tatsuyuki Onozaki, Masakazu Saori
PENTAX HD D FA645 MACRO 90mm f/2.8 ED AW SR— 11 ELEMENTS / 9 GROUPS, f = 90.116 mm (DESIGN)
Ricoh Co., Ltd.(6)US 5,760,973↗1998Inventors: Atsushi Kawamura
RICOH GR LENS 28mm f/2.8 (Ricoh GR1)— 7 ELEMENTS / 4 GROUPS, f ≈ 28.1 mm
US 2013/0321936 A1↗2013Inventors: Kazuyasu Ohashi
RICOH GR LENS 18.3mm f/2.8 (Ricoh GR / GR II)— 7 ELEMENTS / 5 GROUPS, f ≈ 18.3 mm
US 2019/0154946 A1↗2019Inventors: Kazuyasu Ohashi
RICOH GR LENS 18.3mm f/2.8 (Ricoh GR III)— 6 ELEMENTS / 4 GROUPS, f ≈ 18.3 mm  (28 mm equiv.)
US 2019/0250367 A1↗2019Inventors: Minoru Murayama
PENTAX HD D FA* 50mm f/1.4 SDM AW— 15 elements / 9 groups, f = 49.57 mm design
US 2020/0301101 A1↗2020Inventors: Yoichi Nomura
PENTAX HD D FA* 85mm f/1.4 ED SDM AW— 12 elements / 10 groups, f = 83.41 mm design; 85 mm marketed
US 2022/0026670 A1↗2022Inventors: Kazuyasu Ohashi
RICOH GR LENS 26.1mm f/2.8 (Ricoh GR IIIx)— 7 ELEMENTS / 5 GROUPS, f ≈ 26.1 mm
Ricoh Imaging Company, Ltd.(4)US 9,784,950 B2↗2017Inventors: Masakazu Saori, Yoshimitsu Ohara
PENTAX-06 TELEPHOTO ZOOM 15-45mm f/2.8— 14 ELEMENTS / 10 GROUPS, MARKETED 15-45mm f/2.8
US 2016/0103303 A1↗2016Inventors: Masakazu Saori
PENTAX HD D FA* 70-200mm f/2.8 ED DC AW— 19 ELEMENTS / 15 GROUPS (PATENT), 19 ELEMENTS / 16 GROUPS (MARKETED)
US 2016/0327774 A1↗2016Inventors: Minoru Murayama
HD PENTAX-D FA 150-450mm f/4.5-5.6 ED DC AW— Marketed 150–450mm f/4.5–5.6, Design f = 153.50–440.00 mm
US 2017/0068075 A1↗2017Inventors: Tatsuyuki Onozaki
PENTAX HD D FA 28-105mm f/3.5-5.6 ED DC WR— 15 ELEMENTS / 11 GROUPS, PATENT f = 28.70–102.38 mm
Samsung Digital Imaging Co., Ltd.(1)US 2010/0149663 A1↗2010Inventors: Min Heu
SAMSUNG 30mm f/2— 5 ELEMENTS / 5 GROUPS, DESIGN f = 30.756 mm
Samsung Electronics Co., Ltd.(2)US 2012/0056976 A1↗2012Inventors: Yong-jae Lee, Young-woo Park
SAMSUNG 20mm f/2.8— 6 ELEMENTS / 4 GROUPS, 20.2898 mm MODELED EFL
US 2013/0314588 A1↗2013Inventors: Yong-su Kim
SAMSUNG 45mm f/1.8— 7 ELEMENTS / 6 GROUPS, 45mm f/1.8 (MARKETED)
Samyang Optics Co., Ltd.(1)US 2025/0231383 A1↗2025Inventors: Ju Yeon Jo
SAMYANG AF 35-150mm f/2-2.8 FE / L— 21 physical elements / 18 groups, Patent EFL 35.989-146.969 mm
Sony Corporation(15)US 8,553,339 B2↗2013Also assigned to: Tamron Co., Ltd.
Inventors: Hisayuki Yamanaka, Makoto Kanai, Masafumi Sueyoshi, Masaharu Hosoi
SONY E 18-200mm f/3.5-6.3 OSS LE— 17 PHYSICAL LENS PIECES / 13 PATENT AIR-SPACED GROUPS, MARKETED 18-200mm f/3.5-6.3
US 9,538,088 B2↗2017Inventors: Tadashi Yanagisawa
SONY VARIO-TESSAR T* E 16-70mm f/4 ZA OSS— 16 ELEMENTS / 12 PHYSICAL GROUPS, 6 FUNCTIONAL ZOOM GROUPS
US 10,191,254 B2↗2019Inventors: Kouji Katou, Kota Omiya, Hiroshi Koizumi, Naoki Miyagawa
SONY FE 28mm f/2— 9 elements / 8 groups, f = 28.23 mm patent design
US 2007/0229969 A1↗2007Inventors: Hiroyuki Matsumoto
SONY VARIO-SONNAR T* DT 16-80mm f/3.5-4.5 ZA— 14 ELEMENTS / 10 GROUPS, MARKETED 16-80mm f/3.5-4.5
US 2008/0198475 A1↗2008Inventors: Tetsuya Arimoto, Yasushi Yamamoto
SONY VARIO-SONNAR T* 24-70mm f/2.8 ZA SSM— 17 ELEMENTS / 13 GROUPS, 24-70mm
US 2011/0273780 A1↗2011Inventors: Masaharu Hosoi, Hiroyuki Matsumoto, Masafumi Sueyoshi
SONY E 18-55mm f/3.5-5.6 OSS— 11 elements / 9 groups, 18-55mm f/3.5-5.6 marketed
US 2012/0307129 A1↗2012Inventors: Hideki Kai, Makoto Kanai
SONY DT 16-50mm f/2.8 SSM— 16 ELEMENTS / 13 GROUPS, PATENT f = 16.48-48.50 mm
US 2013/0033768 A1↗2013Inventors: Toshihiro Sunaga, Motoyuki Ohtake, Masaharu Hosoi
SONY SONNAR T* E 24mm f/1.8 ZA— 8 ELEMENTS / 7 GROUPS, f ≈ 23.3 mm
US 2014/0071331 A1↗2014Inventors: Kouji Katou, Yumiko Uehara, Motoyuki Ohtake
SONY PLANAR T* 50mm f/1.4 ZA SSM— 8 ELEMENTS / 5 GROUPS, f = 51.5 mm
US 2014/0204265 A1↗2014Inventors: Toshihiro Sunaga
SONY E 20mm f/2.8— 6 ELEMENTS / 6 GROUPS, 4 POWER GROUPS (+/−/+/−)
US 2015/0077859 A1↗2015Inventors: Fumikazu Kanetaka, Kodai Nagamatsu
SONY FE 28-70mm f/3.5-5.6 OSS— 28-70mm f/3.5-5.6, 9 elements / 8 groups
US 2015/0092100 A1↗2015Inventors: Yonghua Chen, Naoki Miyagawa
SONY SONNAR T* FE 55mm f/1.8 ZA— 7 ELEMENTS / 5 GROUPS, f ≈ 53.6 mm
US 2015/0226945 A1↗2015Inventors: Takumi Matsui, Keita Kaifu
SONY FE 70-200mm f/4 G OSS— 21 elements / 15 groups, 70–200mm f/4 marketed
US 2015/0316753 A9↗2015Inventors: Masaharu Hosoi
SONY E PZ 16-50mm f/3.5-5.6 OSS— 9 ELEMENTS / 8 GROUPS, 16-50mm f/3.5-5.6 (MARKETED)
US 2019/0018229 A1↗2019Inventors: Naoki Miyagawa, Yonghua Chen
SONY FE 70-200mm f/2.8 GM OSS— 23 elements / 18 groups, 70-200 mm marketed; 72.10-193.99 mm design
Takahiko Ohishi(1)US 2018/0164556 A1↗2018Inventors: Takahiko Ohishi
PENTAX HD DA* 11-18mm f/2.8 ED DC AW— 16 ELEMENTS / 11 GROUPS, 11–18 mm MARKETING / 11.25–17.70 mm DESIGN
Tamron Co., Ltd.(12)US 6,437,923 B1↗2002Inventors: Yasuharu Yamada
TAMRON AF 28-200mm SUPER XR f/3.8-5.6 Aspherical [IF] MACRO— 28-200mm marketing / 29.07-193.0mm patent design, 15 PHYSICAL LENS PIECES / 14 GROUPS
US 7,075,731 B1↗2006Inventors: Yasuharu Yamada
TAMRON SP AF 28-75mm f/2.8 XR Di LD Aspherical [IF] MACRO— 16 ELEMENTS / 14 GROUPS, DESIGN f = 28.87-72.65 mm
US 8,049,968 B2↗2011Inventors: Hisayuki Yamanaka, Dayong Li
SONY 70-400mm f/4-5.6 G SSM II— 18 ELEMENTS / 12 GROUPS, PATENT 72.06-388.09mm
US 8,228,605 B2↗2012Inventors: Akio Arakawa, Lai Wei
TAMRON SP 70-300mm f/4-5.6 Di VC USD— 17 ELEMENTS / 12 GROUPS, DESIGN 71.75–292.00mm
US 8,553,339 B2↗2013Also assigned to: Sony Corporation
Inventors: Hisayuki Yamanaka, Makoto Kanai, Masafumi Sueyoshi, Masaharu Hosoi
SONY E 18-200mm f/3.5-6.3 OSS LE— 17 PHYSICAL LENS PIECES / 13 PATENT AIR-SPACED GROUPS, MARKETED 18-200mm f/3.5-6.3
US 8,810,918 B2↗2014Inventors: Dayong Li
TAMRON SP 24-70mm f/2.8 Di VC USD— 17 physical elements / 12 groups (18 modeled media), 24.7-67.799 mm design / 24-70 mm marketed
US 8,867,144 B2↗2014Inventors: Hisayuki Yamanaka
TAMRON SP 70-200mm f/2.8 Di VC USD— 23 ELEMENTS / 17 GROUPS, 70-200mm f/2.8 (MARKETING)
US 9,063,253 B2↗2015Inventors: Nobuyuki Adachi
TAMRON SP 90mm f/2.8 Di MACRO 1:1 VC USD (F004)— 14 ELEMENTS / 11 GROUPS, f = 92.556 mm (COMPUTED)
US 10,545,321 B2↗2020Inventors: Yoshito Iwasawa, Jun Takahashi
TAMRON SP 150-600mm f/5-6.3 Di VC USD (A011)— 20 ELEMENTS / 13 GROUPS, PATENT ZOOM POINTS 152.1633-582.5200 mm
US 2011/0286116 A1↗2011Inventors: Kaori Shimizu, Hisayuki Yamanaka
TAMRON SP AF 60mm f/2 Di II LD [IF] MACRO 1:1 (G005)— 14 ELEMENTS / 10 GROUPS, 60mm f/2 (MARKETED)
US 2014/0347522 A1↗2014Inventors: Yoshito Iwasawa
TAMRON 14-150mm f/3.5-5.8 Di III (C001)— 17 ELEMENTS / 13 GROUPS, PATENT 14.43-145.40 mm
US 2024/0295723 A1↗2024Inventors: Takahiko Sakai
TAMRON 50-300mm f/4.5-6.3 Di III VC VXD— 19 ELEMENTS / 14 GROUPS, PATENT f = 51.509-290.867 mm
Vivitar Corporation(4)US 3,942,876↗1976Inventors: Ellis I. Betensky
VIVITAR SERIES 1 200mm f/3.0 VMC— 6 elements / 6 groups, Sonnar-type telephoto with fixed rear corrector
US 3,975,089↗1976Inventors: Ellis I. Betensky
VIVITAR SERIES 1 35-85mm f/2.8 VMC— 12 ELEMENTS / 9 GROUPS, f ≈ 38.5–89.1 mm (patent: 36–83 mm)
US 4,523,816↗1985Inventors: Melvyn H. Kreitzer
VIVITAR SERIES 1 450mm f/4.5 VMC ASPHERICAL MIRROR— 10 POWERED COMPONENTS / 7 GROUPS, f = 437.4 mm (PATENT)
US 4,758,073↗1988Inventors: Jacob Moskovich
VIVITAR SERIES 1 70-210mm f/2.8-4 VMC— 14 ELEMENTS / 10 GROUPS, f = 72.1–203.8 mm
Voigtländer & Sohn AG(2)US 2,627,204↗1953Inventors: Albrecht Wilhelm Tronnier
VOIGTLÄNDER ULTRON 50mm f/2— 6 ELEMENTS / 5 GROUPS, f ≈ 50.0 mm
US 716,035↗1902Inventors: Carl August Hans Harting
VOIGTLÄNDER HELIAR (Symmetric) f/4— 5 ELEMENTS / 3 GROUPS, f = 100 (normalized)
Voigtländer & Sohn Aktiengesellschaft(3)US 2,573,511 A↗1951Inventors: Albrecht Wilhelm Tronnier
VOIGTLÄNDER COLOR-SKOPAR 105mm f/3.5 (Voigtländer Bessa II)— 4 ELEMENTS / 3 GROUPS, f = 104.999mm
US 2,645,156 A↗1953Inventors: Albrecht Wilhelm Tronnier
VOIGTLÄNDER COLOR-HELIAR 105mm f/3.5 (Voigtländer Bessa II)— 5 ELEMENTS / 3 GROUPS, f = 104.999 mm (MODELED)
US 2,646,721 A↗1953Inventors: Albrecht Wilhelm Tronnier
VOIGTLÄNDER NOKTON 50mm f/1.5— 7 ELEMENTS / 5 GROUPS, f = 49.9999 mm (DESIGN)
Voigtländer A.G.(1)US 2,662,446 A↗1953Inventors: Albrecht Wilhelm Tronnier
VOIGTLÄNDER TELOMAR 100mm f/5.5— 5 ELEMENTS / 4 GROUPS, DESIGN f = 101.259 mm
Zeiss Ikon AG(3)US 1,975,678↗1934Inventors: Ludwig Bertele
CARL ZEISS JENA SONNAR 50mm f/1.5— 7 ELEMENTS / 3 GROUPS, f ≈ 50.2 mm
US 1,998,704↗1935Inventors: Ludwig Bertele
CARL ZEISS JENA SONNAR 50mm f/2— 6 ELEMENTS / 3 GROUPS, f ≈ 50.0 mm (scaled from 100mm patent)
US 2,084,309↗1937Inventors: Ludwig Bertele
CARL ZEISS JENA BIOGON 35mm f/2.8 (pre-war)— 7 elements / 4 groups, f = 35.0 mm
No named assignee or applicant(8)US 2,721,499↗1955Inventors: Ludwig Bertele
CARL ZEISS BIOGON 21mm f/4.5— 8 ELEMENTS / 5 GROUPS, f ≈ 19.0 mm (design)
US 3,622,227↗1971Inventors: Yoshiyuki Shimizu
NIKON NIKKOR-N Auto 24mm f/2.8— 9 ELEMENTS / 7 GROUPS, f ≈ 24.0 mm
US 4,726,669↗1988Inventors: Pierre Angénieux
P. ANGÉNIEUX DEM 180mm f/2.3 APO— 8 ELEMENTS / 6 GROUPS, f = 179.927 mm (DESIGN)
US 765,006 A↗1904Inventors: Carl August Hans Harting
VOIGTLÄNDER DYNAR 100mm f/6— 5 ELEMENTS / 3 GROUPS, PATENT NORMALIZATION fD = 100
US 2001/0030812 A1↗2001Inventors: Akiko Furuta
NIKON AI AF ZOOM-NIKKOR 18-35mm f/3.5-4.5D IF-ED— 18-35mm f/3.5-4.5, 11 ELEMENTS / 8 GROUPS
US 2003/0156333 A1↗2003Inventors: Yasuharu Yamada
TAMRON AF 28-300mm f/3.5-6.3 XR Di LD Aspherical [IF] MACRO— 28-300mm marketed / 28.9958-289.5284mm modeled, f/3.5-6.3 marketed / f/3.5000-6.5122 modeled wide-open
US 2008/0212200 A1↗2008Inventors: Dayong Li, Akio Arakawa
TAMRON SP AF 70-200mm f/2.8 Di LD [IF] MACRO— 18 ELEMENTS / 13 GROUPS, 70-200mm f/2.8 (MARKETING)
US 2012/0307375 A1↗2012Inventors: Yohei Takano, Hiromichi Atsuumi
RICOH LENS A16 24-85mm F3.5-5.5— 11 ELEMENTS / 9 GROUPS, 15.7-55.5 mm actual (24-85 mm equivalent)