Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835368 | Doubly doped lithium niobate crystals | Yongfa Kong, Jingjun Xu, Guangao Li, Qian Sun, Baiquan Tang +4 more | 2004-12-28 |
| 6738337 | Only-readable three-dimensional optical storage device | Jingjun Xu, Qian Sun, Xinzheng Zhang, Qiang Wu, Baiquan Tang +3 more | 2004-05-18 |