Masakazu Hibino — Lens Patent Author | Surface & Stop

Masakazu Hibino4 related patents across 4 interactive lens diagrams.
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Sigma Corporation (4)
Sigma Corporation(4)JP 2014-145954 A↗2014Assignee: Sigma Corporation
Inventors: Masakazu Hibino
Numerical Example 1SIGMA 60mm f/2.8 DN | Art— 8 elements / 6 groups, f = 60.00 mm patent design
JP 2017-167327 A↗2017Assignee: Sigma Corporation
Inventors: Masakazu Hibino
Numerical Example 1PANASONIC LEICA DG SUMMILUX 12mm f/1.4 ASPH.— 15 elements / 12 groups, 12 mm nominal; f = 11.9795 mm design
JP 2019-023693 A↗2019Assignee: Sigma Corporation
Inventors: Masakazu Hibino
Numerical Example 1OLYMPUS M.ZUIKO DIGITAL ED 45mm f/1.2 PRO— 14 ELEMENTS / 10 GROUPS, DESIGN f = 44.10 mm
JP 2025-043459 A↗2025Assignee: Sigma Corporation
Inventors: Masakazu Hibino
Numerical Example 1SIGMA 70-200mm f/2.8 DG DN OS | Sports— 20 ELEMENTS / 15 GROUPS, DESIGN f = 72.10–194.00 mm