Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5627809 | Optical disk device having high-speed reproduction capability | — | 1997-05-06 |
| 5596421 | Optical disk recorder for video signals and an optical disk for use therein | Hideaki Shibata | 1997-01-21 |