Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977232 | Optical glass, preform for press molding and optical part | Xuelu Zou | 2005-12-20 |
| 6844279 | Optical glass, press-molding preform and optical part | Yasuhiro Fujiwara, Zou Xuelu | 2005-01-18 |