Yuki Ueda — Lens Patent Author | Surface & Stop

Yuki Ueda3 related patents across 4 interactive lens diagrams.
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Sigma Corporation (3)
Sigma Corporation(3)JP 2018-005099 A↗2018Assignee: Sigma Corporation
Inventors: Yuki Ueda
Numerical Example 4SIGMA 85mm f/1.4 DG HSM | Art— 14 ELEMENTS / 12 GROUPS, f ≈ 83.4 mm
JP 2021-148808 A↗2021Assignee: Sigma Corporation
Inventors: Yuki Ueda
Numerical Example 1SIGMA 105mm f/2.8 DG DN MACRO | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 103.48 mm
JP 2025-124346 A↗2025Assignee: Sigma Corporation
Inventors: Yuki Ueda
Numerical Example 1SIGMA 50mm f/1.2 DG DN | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 48.27 mmNumerical Example 2SIGMA 85mm f/1.2 DG | Art— 17 ELEMENTS / 12 GROUPS, DESIGN f = 82.63 mm