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Kenichi Okamura
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Battery, battery pack, battery charger, and battery charging system
Patent number
9,269,992
Issue date
Feb 23, 2016
Sony Corporation
Kenichi Okamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Recording apparatus and method, playback apparatus and method, reco...
Patent number
7,903,947
Issue date
Mar 8, 2011
Sony Corporation
Makoto Yamada
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
BATTERY, BATTERY PACK, BATTERY CHARGER, AND BATTERY CHARGING SYSTEM
Publication number
20120206102
Publication date
Aug 16, 2012
SONY CORPORATION
Kenichi Okamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Recording Apparatus and Method, Playback Apparatus and Method, Reco...
Publication number
20080292267
Publication date
Nov 27, 2008
Makoto Yamada
H04 - ELECTRIC COMMUNICATION TECHNIQUE