Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7549812 | Print control module of thermal printer | Yu-Jen Su, Hui-Chun Ho, Min-Chuan Wu | 2009-06-23 |
| 6987341 | Motor of rotor with built-in permanent magnet | Yu-Choung Chang, Ching-Feng Lai | 2006-01-17 |
| 6708493 | Variable ratio of force-enlargement master cylinder of a braking system | Yen-Chieh Mao | 2004-03-23 |
| 6672563 | Ball valve having a magnetic seat sealing device | Chia-Yang Chang, Kuo-Hung Lin | 2004-01-06 |
| 6471610 | Front derailleur for a bicycle | Yu-Jen Chien | 2002-10-29 |
| 6387008 | Speed-changing control mechanism of multistage speed-changing wheel hub | Jia-Lin Chen, Caesar Chen | 2002-05-14 |
| 6142899 | Electro-motive gear-shift control apparatus for bicycles | Cheng Liu, Chih-Wen Chang, Pai-Hsiang Hsu | 2000-11-07 |
| 5960668 | Indexing mechanism using pairs of radially disposed rollers engaged between adjacent cam ribs | Wei-Han Wang | 1999-10-05 |
| 5876159 | Sprocket trimming method for the multi-stage sprocket assembly | Chwan-Cherng Wang, Chung-Biau Tsay, Chung-Ping Chiang, Pai-Hsiang Hsu | 1999-03-02 |
| 5816966 | Bicycle front deraileur with a smooth gear switching mechanism | Yann-Jy Yang, Kwang-Shyan Ho, Pai-Hsiang Hsu, Ying Chen | 1998-10-06 |
| 5704859 | Type of the compact freewheel body for bicycles | Chen-Hua Feng, Shyh-Haur Su | 1998-01-06 |
| 5662569 | Stepping apparatus capable of large angle oscillation | Chun-Hsien Liu | 1997-09-02 |
| 5409422 | Two sprocket tooth trimming methods and the structure thereof for the multi-stage sprocket assembly in a bicycle | Chan-Hua Feng, Chwan-Cherng Wang, Chung-Biau Tsay, Chang-Dau Yan | 1995-04-25 |