Makoto Nakahara

8 related patents across 9 interactive lens diagrams.

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Canon Inc.(8)

JP 2013-054269 A2013

Assignee: Canon Inc.

Inventors: Makoto Nakahara

CANON EF 28mm f/2.8 IS USM— 9 ELEMENTS / 7 GROUPS, DESIGN f = 28.60 mm

JP 2015-031869 A2015

Assignee: Canon Inc.

Inventors: Makoto Nakahara

CANON EF-S 10-18mm f/4.5-5.6 IS STM— 14 ELEMENTS / 11 GROUPS, f = 10.30–17.46 mm

US 2016/0313535 A12016

Assignee: Canon Inc.

Inventors: 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 A12019

Assignee: Canon Inc.

Inventors: 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 mm CANON EF 600mm f/4 L IS III USM— 17 ELEMENTS / 13 GROUPS PRODUCTION; 16 / 12 ACTIVE MODEL, 600mm f/4 MARKETED

JP 2021-047297 A2021

Assignee: Canon Inc.

Inventors: 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 A2021

Assignee: Canon Inc.

Inventors: 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

US 2021/0033835 A12021

Assignee: Canon Inc.

Inventors: Makoto Nakahara

CANON RF 70-200mm f/4 L IS USM— 16 ELEMENTS / 11 GROUPS, 4 UD-CLASS ELEMENTS

US 2023/0213739 A12023

Assignee: Canon Inc.

Inventors: 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

Makoto Nakahara

Canon Inc.(8)

JP 2013-054269 A↗2013

JP 2015-031869 A↗2015

US 2016/0313535 A1↗2016

US 2019/0041605 A1↗2019

JP 2021-047297 A↗2021

JP 2021-056407 A↗2021

US 2021/0033835 A1↗2021

US 2023/0213739 A1↗2023

JP 2013-054269 A2013

JP 2015-031869 A2015

US 2016/0313535 A12016

US 2019/0041605 A12019

JP 2021-047297 A2021

JP 2021-056407 A2021

US 2021/0033835 A12021

US 2023/0213739 A12023