Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663840 | Objective lens actuator for optical head and used for high speed access | — | 1997-09-02 |
| 5623372 | Thin type optical head | — | 1997-04-22 |
| 5621707 | Method for erasing rewritable optical disk using two laser beams and an erasingspacehead therefor | — | 1997-04-15 |
| 5612936 | Method and apparatus for detecting tracking error signal for optical disk using pairs of photosensors | — | 1997-03-18 |
| 5604641 | Objective lens actuator and method for manufacturing the same | — | 1997-02-18 |