Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10479444 | Crank drive apparatus for power assisted bicycle | Fei-Ya Chen | 2019-11-19 |
| 9373464 | Keyswitch, keyboard and related force feedback method | Shana Shiang-Fong Smith, Chien-Min Wu, Chih-An Wang, Fei-Ya Chen | 2016-06-21 |
| 9117599 | Self-guided key switch and keyboard configured with same | Fei-Ya Chen | 2015-08-25 |
| 7138980 | Input apparatus with scrolling function on cursor key and method thereof | Mao-Sung Huang | 2006-11-21 |
| 6437575 | Low-voltage detecting circuit | Hwan-Rong Lin, Hung-Chang Hsu | 2002-08-20 |
| 6320519 | Keyboard and method for switching key code with a single modifier key | Hong-Chang Hsu, Min-Shan Chuang | 2001-11-20 |