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Kenichi Ishizuka
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Hanamaki-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Eyepiece lens system and image observation device
Patent number
9,323,040
Issue date
Apr 26, 2016
RICOH INDUSTRIAL SOLUTIONS INC.
Kenichi Ishizuka
G02 - OPTICS
Patents Applications
last 30 patents
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Patent Application
EYEPIECE SYSTEM AND IMAGE OBSERVATION APPARATUS
Publication number
20160195707
Publication date
Jul 7, 2016
RICOH INDUSTRIAL SOLUTIONS INC.
Kenichi ISHIZUKA
G02 - OPTICS
Information
Patent Application
EYEPIECE LENS SYSTEM AND IMAGE OBSERVATION DEVICE
Publication number
20140218806
Publication date
Aug 7, 2014
SONY CORPORATION
Kenichi Ishizuka
G02 - OPTICS