Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1004547 | Control module for servo motor drive | Chen-Hsien Chang, Chih-Wei Chen | 2023-11-14 |
| D1004548 | Drive module for servo motor drive | Chen-Hsien Chang, Chih-Wei Chen | 2023-11-14 |
| D1003831 | Power module for servo motor drive | Chen-Hsien Chang, Chih-Wei Chen | 2023-11-07 |
| 7691463 | Optical recording materials and recording mediums using the same | Lih-Hsin Chou, Mei-Rurng Tseng, Chung-Chih Chang, Chin-Chi Chang, Shun-Te Cheng +4 more | 2010-04-06 |