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Azumi Iida
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Saitama, JP
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last 30 patents
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Patent Grant
Contents reproduction expiration management system, contents reprod...
Patent number
8,249,991
Issue date
Aug 21, 2012
Sony Corporation
Takashi Sato
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Disk storage case and recording medium
Publication number
20070193897
Publication date
Aug 23, 2007
Takashi Kinoshita
G11 - INFORMATION STORAGE
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Patent Application
Content playback expiation management system, content playback expi...
Publication number
20060185023
Publication date
Aug 17, 2006
SONY CORPORATION
Takashi Sato
G06 - COMPUTING CALCULATING COUNTING