Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6898167 | Techniques for writing and reading data on an optical disk which include formation of holographic optical gratings in plural locations on the optical disk | Tsuen-Hsi Liu, Demetri Psaltis, Fai Mok | 2005-05-24 |