Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906993 | Hybrid optical disc having depths of pits as function of wavelength & pre-pits width which are function of track pitch within certain range | Shyh-yeu Wang, Chi-Tsung Hsu | 2005-06-14 |