Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646932 | Optical disk, tracking error signal generating apparatus, and tracking control apparatus | Hiroki Kuribayashi | 1997-07-08 |
| 5629924 | Optical disk having synchronous marks and data marks to satisfy certain criteria | Hideki Hayashi | 1997-05-13 |
| 5617406 | Optical disc with heat blocking bands between tracks | Nobuaki Onagi | 1997-04-01 |
| 5608715 | Multi-layered recording disk and recording/reproducing system using the same | Seiichi Ohsawa | 1997-03-04 |
| 5600626 | Optical disk of sampled servo type having synchronization a marks for simple synchronization detection | Yoshimi Tomita, Hideki Hayashi | 1997-02-04 |