Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5148420 | Recording information apparatus having a head speed detector | — | 1992-09-15 |
| 5128920 | Optical disk apparatus with a laser beam controllable in accordance with a specification area on a disk | — | 1992-07-07 |
| 5103440 | Track access error correction apparatus for moving an optical head from one track location to another track location on an optical disc | — | 1992-04-07 |
| 5063549 | Optical disk apparatus | — | 1991-11-05 |
| 5051972 | Track accessing control apparatus having a high-pass filter for extracting a tracking signal | — | 1991-09-24 |
| 5018121 | Optical recording/reproducing focusing apparatus | — | 1991-05-21 |
| 4942563 | Signal processing apparatus and method capable of providing precise digital data | — | 1990-07-17 |
| 4926407 | Optical data processor | — | 1990-05-15 |
| 4877953 | Current-voltage converter circuit | — | 1989-10-31 |