Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479197 | Method of manufacturing two-color filter | Richard Wu | 2002-11-12 |
| 6369377 | Multiple-beam holographic optical pick-up head | Hsi-Fu Shih, Tzu-Ping Yang, Wei Lu, Mark O. Freeman, Der-Ray Huang +1 more | 2002-04-09 |