Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656559 | Optical recording medium and optical recording method therefor | Jiro Yoshinari | 2003-12-02 |
| 6618349 | Optical recording medium and its designing method | Hiroyasu Inoue, Hajime Utsunomiya, Hiroshi Shingai, Tatsuya Kato | 2003-09-09 |