Shunji Iwamoto — Lens Patent Author | Surface & Stop

Shunji Iwamoto4 related patents across 4 interactive lens diagrams.
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Canon Inc. (4)
Canon Inc.(4)US 8,854,747 B2↗2014Assignee: Canon Inc.
Inventors: Shunji Iwamoto
CANON EF-M 22mm f/2 STM— 7 elements / 6 groups, f = 21.79 mm design / 22 mm marketed
JP 2021-056407 A↗2021Assignee: 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
EP 4 174 551 A1↗2023Assignee: Canon Inc.
Inventors: 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
US 2024/0192474 A1↗2024Assignee: Canon Inc.
Inventors: Shunji Iwamoto
CANON RF 24-105mm f/2.8 L IS USM Z— 23 ELEMENTS / 18 GROUPS, f = 24.78–102.06 mm