Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6804190 | High density phase-change type optical disk having a data efficiency of more than 80 percent | Takashi Ishida, Hiromichi Ishibashi, Atsushi Nakamura, Junichi Minamino, Shigeru Furumiya | 2004-10-12 |
| 6791926 | Method and device for finding conditions on recording pulse of optical disk | Shigeru Furumiya, Junichi Minamino | 2004-09-14 |
| 6746979 | Alumina fiber aggregate and its production method | Norio Ikeda, Toshiaki Sasaki | 2004-06-08 |