Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6483799 | Rewritable DVD-RAM disc | Zu-Wen Chao, Guo-Zua Wu, Wei-Cheng Chen | 2002-11-19 |
| 6430138 | Bifocal optical pickup head | Hung-Lu Chang, Tzu-Ping Yang | 2002-08-06 |
| 6369377 | Multiple-beam holographic optical pick-up head | Hsi-Fu Shih, Jau-Jiu Ju, Tzu-Ping Yang, Wei Lu, Mark O. Freeman +1 more | 2002-04-09 |