Daichi Tanoue — Lens Patent Author | Surface & Stop

Daichi Tanoue2 related patents across 2 interactive lens diagrams.
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Sigma Corporation (2)
Sigma Corporation(2)JP 2022-067328 A↗2022Assignee: Sigma Corporation
Inventors: Daichi Tanoue
Numerical Example 1SIGMA 24mm f/3.5 DG DN | Contemporary— 10 ELEMENTS / 8 GROUPS, DESIGN f = 24.00 mm
JP 2025-162727 A↗2025Assignee: Sigma Corporation
Inventors: Daichi Tanoue
Numerical Example 1SIGMA 200mm f/2 DG OS | Sports— 19 ELEMENTS / 14 GROUPS, DESIGN f = 194.30 mm