Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696743 | Information access apparatus for optical disc having a plurality of recoding layers | — | 1997-12-09 |
| 5689493 | A super-resolution optical head with signal corrective circuit | — | 1997-11-18 |
| 5673240 | Seek control circuit for suppressing vibration of objective lens in optical head during seek operation | — | 1997-09-30 |
| 5605601 | Method of manufacturing semiconductor device | — | 1997-02-25 |