Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671457 | Information recording medium, method for recording information, and method for reproduction information | Yoshiyuki Ishizawa, Hideo Ando, Shinichi Kikuchi, Kazuhiko Taira | 2003-12-30 |
| 6671458 | Information recording medium, method for recording information, and method for reproduction information | Yoshiyuki Ishizawa, Hideo Ando, Shinichi Kikuchi, Kazuhiko Taira | 2003-12-30 |
| 6668135 | Information recording medium, method for recording information, and method for reproduction information | Yoshiyuki Ishizawa, Hideo Ando, Shinichi Kikuchi, Kazuhiko Taira | 2003-12-23 |
| 6560407 | Information recording medium, method for recording information, and method for reproduction information | Yoshiyuki Ishizawa, Hideo Ando, Shinichi Kikuchi, Kazuhiko Taira | 2003-05-06 |
| 6532336 | Information recording medium, method for recording information, and method for reproduction information | Yoshiyuki Ishizawa, Hideo Ando, Shinichi Kikuchi, Kazuhiko Taira | 2003-03-11 |