Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8077865 | Electronic device, content reproduction control method, program, storage medium, and integrated circuit | Hiroshi Okuyama, Ryousuke Kobayashi, Tomoyuki Haga | 2011-12-13 |
| 7962746 | Computer system and program creating device | Tomoyuki Haga, Hiroshi Okuyama, Yoshikatsu Ito, Shigehiko Kimura, Yasuki Oiwa +1 more | 2011-06-14 |
| 7934256 | Electronic device, update server device, key update device | Takafumi Kagawa, Tomoyuki Haga, Hiroshi Okuyama, Shigehiko Kimura, Yasuki Oiwa +1 more | 2011-04-26 |
| 7930478 | Semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method and a computer-readable storage medium | Kenji Tagawa, Teruto Hirota, Tomokazu Ishikawa, Shinji Inoue, Masayuki Kozuka | 2011-04-19 |