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Tomoki Shirakawa
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Kanagawa, JP
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last 30 patents
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Patent Grant
Content usage managing apparatus, content usage managing method and...
Patent number
8,782,806
Issue date
Jul 15, 2014
Sony Corporation
Tetsuo Maruyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
Content usage managing apparatus, content usage managing method and...
Publication number
20100169978
Publication date
Jul 1, 2010
SONY CORPORATION
Tetsuo Maruyama
G06 - COMPUTING CALCULATING COUNTING
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Patent Application
Advertisement providing system, advertisement providing method and...
Publication number
20100131371
Publication date
May 27, 2010
SONY CORPORATION
Tetsuo Maruyama
G06 - COMPUTING CALCULATING COUNTING