Atsushi Shibayama — Lens Patent Author | Surface & Stop

Atsushi Shibayama4 related patents across 4 interactive lens diagrams.
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Nikon Corporation (4)
Nikon Corporation(4)US 5,717,527↗1998Assignee: Nikon Corporation
Inventors: Atsushi Shibayama
Embodiment 7NIKON AF ZOOM-MICRO NIKKOR 70-180mm f/4.5-5.6 D ED— 18 elements / 14 groups, Patent f = 82.4-194.0 mm
US 5,949,588↗1999Assignee: Nikon Corporation
Inventors: Kouichi Ohshita, Atsushi Shibayama
Embodiment 8NIKON GYOGYOTTO 20mm f/8— 3 elements / 2 groups, f = 20.0 mm (scaled from patent f = 100)
US 2003/0072085 A1↗2003Assignee: Nikon Corporation
Inventors: Keiko Mizuguchi, Atsushi Shibayama
Example 1NIKON ZOOM-NIKKOR 5.6-16.8mm f/2.7-4.8 (Nikon COOLPIX SQ)— 7 ELEMENTS / 6 GROUPS, 3 POWER GROUPS: NEGATIVE / POSITIVE / POSITIVE
US 2006/0072213 A1↗2006Assignee: Nikon Corporation
Inventors: Atsushi Shibayama, Takeshi Suzuki, Tomoki Ito
Example 2NIKON AF-S DX VR ZOOM-NIKKOR 18-200mm f/3.5-5.6 G IF-ED— 16 PHYSICAL ELEMENTS / 12 GROUPS, 18-200mm marketed; 18.50109-194.99580mm patent control points