Keiichi Zaitsu — Lens Patent Author | Surface & Stop

Keiichi Zaitsu2 related patents across 2 interactive lens diagrams.
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Panasonic Corporation (2)
Panasonic Corporation(2)US 2010/0194930 A1↗2010Assignee: Panasonic Corporation
Inventors: Kyoichi Miyazaki, Keiichi Zaitsu
PANASONIC LUMIX G VARIO 7-14mm f/4 ASPH.— 16 elements / 12 groups, 7.2006-13.6229 mm patent EFL
US 2013/0148006 A1↗2013Assignee: Panasonic Corporation
Inventors: Shunichiro Yoshinaga, Kyoichi Miyazaki, Takao Yamanaka, Keiichi Zaitsu
PANASONIC LUMIX G 14mm f/2.5 II ASPH— 6 elements / 5 groups, f = 14.5456 mm design; 14 mm nominal