Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7885159 | Optical disc drive device with anti-scraping mechanism | Song-Ruei Chen, Chih-Chang Cheu, Chun-Cheng Chang, Chung-Ming Chen | 2011-02-08 |
| 7607144 | Method for detecting size of the optical disk and ejecting optical disk | Sung S. Chang, Chin-Lung Huang | 2009-10-20 |
| 7558176 | Method for preventing optical disk from being scraped | Song-Ruei Chen, Chih-Chang Cheu, Chun-Cheng Chang, Chung-Ming Chen | 2009-07-07 |