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Takahiro Hirai
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Character information copying system, recording apparatus, and reco...
Patent number
6,622,158
Issue date
Sep 16, 2003
Sony Corporation
Tomohiro Koyata
G11 - INFORMATION STORAGE
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Patent Grant
Single remote control system for plurality of audio and visual equi...
Patent number
6,313,812
Issue date
Nov 6, 2001
Sony Corporation
Shuichi Nagano
G11 - INFORMATION STORAGE
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Patent Grant
Information display device for displaying variation of environment
Patent number
5,892,519
Issue date
Apr 6, 1999
Sony Corporation
Takahiro Hirai
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
Character information copying system, recording apparatus and recor...
Publication number
20030135550
Publication date
Jul 17, 2003
Sony Corporation
Tomohiro Koyata
G11 - INFORMATION STORAGE