Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kaoru Yokota0
Masao Nonaka0
Natsume Matsuzaki0
Date of Patent
September 6, 2011
0Patent Application Number
119165870
Date Filed
June 9, 2006
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
An information security device is provided that, when information is circulated through a chain, permits changing of a usage rule for the information or collection (deletion) of the information after the circulation.
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