Yasuaki Hagiwara — Lens Patent Author | Surface & Stop

Yasuaki Hagiwara4 related patents across 4 interactive lens diagrams.
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Canon Inc. (4)
Canon Inc.(4)US 2013/0335830 A1↗2013Assignee: Canon Inc.
Inventors: Yoshihisa Tashiro, Yasuaki Hagiwara
Numerical Embodiment 1CANON EF-M 18-55mm f/3.5-5.6 IS STM— 13 ELEMENTS / 11 GROUPS, 18.58-53.36 mm DESIGN
JP 2014-219616 A↗2014Assignee: Canon Inc.
Inventors: Yasuaki Hagiwara
Example 1CANON EF-M 55-200mm f/4.5-6.3 IS STM— 17 ELEMENTS / 11 GROUPS, DESIGN f = 56.60–195.00 mm
US 2021/0003831 A1↗2021Assignee: Canon Inc.
Inventors: Yasuaki Hagiwara
Example 1CANON RF 24-105mm f/4-7.1 IS STM— 13 ELEMENTS / 11 GROUPS, 24-105mm f/4-7.1 (MARKETED)
US 2024/0329367 A1↗2024Assignee: Canon Inc.
Inventors: Yasuaki Hagiwara
Numerical Example 1CANON RF 28-70mm f/2.8 IS STM— 15 ELEMENTS / 12 GROUPS, f = 28.80–67.90 mm (2.36×)