Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659533 | Method of using a single pick-up head to read and store data on discs of different thicknesses and structure of a pick-up head apparatus therefor | Chyr-Pwu Tzou, Jyh-Horng Chen | 1997-08-19 |