Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500598 | Multilevel phase change optical recording medium | — | 2002-12-31 |
| 6493164 | Magnetic recording apparatus and method of magnetic recording | Akira Kikitsu | 2002-12-10 |
| 6396792 | Recording method of a phase change optical recording medium and recording apparatus | — | 2002-05-28 |
| 6385162 | Optical disk | Toshihiko Nagase | 2002-05-07 |
| 6339582 | Optical disk and recording/reproducing method thereof | Toshihiko Nagase | 2002-01-15 |