Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654337 | Magneto-optical recording medium having pit pitch greater than groove pitch | Manabu Satoh, Mitsuo Arima, Jun Shimizu, Etsuro Ikeda, Hirotaka Ozawa +2 more | 2003-11-25 |
| 6556537 | Optical recording medium having two pit trains of mutually different depths, and master for manufacturing the optical recording medium | — | 2003-04-29 |
| 6521317 | Optical recording medium | Toshihiro Akimori, Manabu Satoh | 2003-02-18 |