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Katsuhisa Tsutsumi
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Kawagoe City, JP
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Patents Applications
last 30 patents
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Patent Application
ZOOM LENS AND IMAGING DEVICE
Publication number
20080239504
Publication date
Oct 2, 2008
Katsuhisa TSUTSUMI
G02 - OPTICS
Information
Patent Application
Extender optical system
Publication number
20030151827
Publication date
Aug 14, 2003
Katsuhisa Tsutsumi
G02 - OPTICS
Information
Patent Application
Retrofocus wide-angle lens
Publication number
20030137750
Publication date
Jul 24, 2003
Katsuhisa Tsutsumi
G02 - OPTICS
Information
Patent Application
Mount conversion adaptor lens
Publication number
20020191302
Publication date
Dec 19, 2002
Katsuhisa Tsutsumi
G02 - OPTICS