Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5218479 | Zoom lens fixing mechanism | Yee-Haur Chiou, Chen-Chin Cheng | 1993-06-08 |
| 5177523 | Automatic instant focusing and exposing mechanism for photographic apparatus | Yee-Haur Chiou, Chen-Chin Cheng | 1993-01-05 |