Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592452 | Optical disk with logical tracks formed thereon and optical disk drive device | Kyosuke Yoshimoto, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Jinichi Kondo +1 more | 1997-01-07 |