Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337839 | Optical disk recording medium and optical disk drive apparatus | Kazuhiko Nakane, Hiroyuki Ohata, Kenji Gotoh, Yoshinobu Ishida | 2002-01-08 |
| 6163522 | Optical recording medium having the physical address of sectors monotonically change along spiral tracks | Kazuhiko Nakane, Hiroyuki Ohata, Kenji Gotoh, Yoshinobu Ishida | 2000-12-19 |