Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9081339 | Fixing device and image formation device | Chaoqian Tang, Baolin Zhang, Wei Li, Kazuya Iwasaki | 2015-07-14 |
| 5825023 | Auto focus laser encoder having three light beams and a reflective grating | Lilong Cai | 1998-10-20 |
| 5757491 | Laser interferometer system for straightness measurements | Lilong Cai | 1998-05-26 |