Yoshiyuki Taki — Lens Patent Author | Surface & Stop

Yoshiyuki Taki3 related patents across 3 interactive lens diagrams.
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Canon Inc. (3)
Canon Inc.(3)JP 2008-070450 A↗2008Assignee: Canon Inc.
Inventors: Yoshiyuki Taki
Numerical Example 1CANON EF 70-200mm f/4 L IS USM— 20 ELEMENTS / 15 GROUPS, 70-200mm f/4 (MARKETED)
US 7,864,451 B2↗2011Assignee: Canon Inc.
Inventors: Yoshiyuki Taki
Numerical Example 1CANON EF 100mm f/2.8 L Macro IS USM— 15 elements / 12 groups, f = 99.996 mm design
JP 2020-190696 A↗2020Assignee: Canon Inc.
Inventors: Yoshiyuki Taki
Numerical Example 1CANON EF 17-40mm f/4 L USM— 12 ELEMENTS / 9 GROUPS, DESIGN f = 17.49–38.83 mm