Tomoki Kono — Lens Patent Author | Surface & Stop

Tomoki Kono2 related patents across 2 interactive lens diagrams.
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Sigma Corporation (2)
Sigma Corporation(2)JP 2013-156459 A↗2013Assignee: Sigma Corporation
Inventors: Tomoki Kono
SIGMA 30mm f/2.8 (Sigma DP2 Merrill)— 8 ELEMENTS / 6 GROUPS, f ≈ 29.6 mm
JP 2016-139087 A↗2016Assignee: Sigma Corporation
Inventors: Tomoki Kono, Noriyuki Ogasawara
SIGMA 14mm f/4 (Sigma dp0 Quattro)— 11 ELEMENTS / 8 GROUPS, f ≈ 13.97 mm