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Patent applications and USPTO patent grants for Kanetsuna; Katsuyuki.The latest application filed is for "communication system, communication apparatus, communication method, storage medium, and package medium".
Patent | Date |
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Contents reproduction expiration management system, contents reproduction expiration managing method, terminal apparatus, server apparatus, program, and recording medium for managing permission/non-permission of reproduction of contents Grant 8,249,991 - Sato , et al. August 21, 2 | 2012-08-21 |
Communication system, communication apparatus, communication method, storage medium, and package medium Grant 8,090,764 - Sato , et al. January 3, 2 | 2012-01-03 |
Communication system, communication apparatus, communication method, storage medium, and package medium App 20070185977 - Sato; Takashi ;   et al. | 2007-08-09 |
Content playback expiation management system, content playback expiration management method, terminal, server, program, and recording medium App 20060185023 - Sato; Takashi ;   et al. | 2006-08-17 |
Communication system, communication apparatus, communication method, storage medium, and package medium App 20030041123 - Sato, Takashi ;   et al. | 2003-02-27 |
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