Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618349 | Optical recording medium and its designing method | Hiroyasu Inoue, Hajime Utsunomiya, Tetsuro Mizushima, Tatsuya Kato | 2003-09-09 |
| 6605328 | Optical recording medium | Hiroyasu Inoue, Tatsuya Kato, Hajime Utsunomiya, Yoshitomo Tanaka | 2003-08-12 |