Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650988 | Digital signal reproducing apparatus with an amplitude limit sampling means | — | 1997-07-22 |
| 5646932 | Optical disk, tracking error signal generating apparatus, and tracking control apparatus | Fumihiko Yokogawa | 1997-07-08 |
| 5615206 | Optical disk | Takuma Yanagisawa, Seiichi Ohsawa | 1997-03-25 |