Masakazu Yamagishi — Lens Patent Author | Surface & Stop

Masakazu Yamagishi2 related patents across 2 interactive lens diagrams.
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Canon Inc. (1)
Sony Group Corporation (1)
Canon Inc.(1)JP 2018-205474 A↗2018Assignee: Canon Inc.
Inventors: Masakazu Yamagishi
CANON TS-E 90mm f/2.8L MACRO— 11 elements / 9 groups, Patent f = 55.986 mm; scaled ×1.60754
Sony Group Corporation(1)WO 2025/239028 A1↗2025Assignee: Sony Group Corporation
Inventors: Masakazu Yamagishi, Ryohei Tazaki, Yuma Kumisawa
SONY FE 85mm f/1.4 GM II— 14 ELEMENTS / 11 GROUPS, f ≈ 82.5 mm