Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12360620 | OSD system for public-place-device, and self-service device | Chi-Liang Tai | 2025-07-15 |
| 10094965 | Pattern displaying device | Ray-Long Tsai, Pei-Shan Hsieh, Tung-Chuan CHEN, Cheng-Yen Wang | 2018-10-09 |
| 7950829 | High efficiency light emitting diode apparatus | Shao-Chen Chiu, Yih-Hua Renn, Ray-Long Tsai, Chi-Feng Cheng | 2011-05-31 |
| 6814457 | Light guide structure for light guide plate | Chi-Feng Cheng | 2004-11-09 |