Shingo Hayakawa — Lens Patent Author | Surface & Stop

Shingo Hayakawa1 related patent across 1 interactive lens diagram.
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Canon Inc. (1)
Canon Inc.(1)US 6,061,180↗2000Assignee: Canon Inc.
Inventors: Shingo Hayakawa
CANON EF 28-135mm f/3.5-5.6 IS USM— 16 elements / 12 groups, 28-135mm f/3.5-5.6 marketed; 28.891-131.182mm patent design