Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819862 | Video data recording medium, video data recording apparatus and video data playback apparatus | Tohru Uno | 2004-11-16 |
| 6741798 | Information recording medium, method for recording information, and method for reproduction information | Koji Maruyama, Hideo Ando, Shinichi Kikuchi, Kazuhiko Taira | 2004-05-25 |
| 6674959 | Information recording medium, method for recording information, and method for reproduction information | Koji Maruyama, Hideo Ando, Shinichi Kikuchi, Kazuhiko Taira | 2004-01-06 |