Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819643 | Optical disk apparatus, method of recording on optical disk, and optical disk | Seiji Kobayashi | 2004-11-16 |
| 6775215 | Optical disk apparatus, optical disk recording method, and optical disk | Seiji Kobayashi, Kazumine Ito | 2004-08-10 |