Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8375560 | Method for manufacturing a condenser microphone | Chung-Ching Lai, Chao-Chih Chang | 2013-02-19 |
| 7469461 | Method for making a diaphragm unit of a condenser microphone | Chao-Chih Chang, Ray-Hua Horng, Chung-Chin Lai, Ji-Liang Chen | 2008-12-30 |
| 7343661 | Method for making condenser microphones | Ray-Hua Horng, Zong-Ying Lin, Chao-Chih Chang | 2008-03-18 |