Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7902723 | Screw thread driving polyhedral ultrasonic motor | Tieying Zhou, Yu-Ming Chen, Deyong Fu, Xiaoping Hu, Yi Li +2 more | 2011-03-08 |
| 7697828 | Integrated optical focusing/zooming system | Xiaoping Hu, Bin Tian, Yi Li, Tieying Zhou, Yu-Ming Chen | 2010-04-13 |