Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469461 | Method for making a diaphragm unit of a condenser microphone | Chao-Chih Chang, Ray-Hua Horng, Jean-Yih Tsai, Ji-Liang Chen | 2008-12-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469461 | Method for making a diaphragm unit of a condenser microphone | Chao-Chih Chang, Ray-Hua Horng, Jean-Yih Tsai, Ji-Liang Chen | 2008-12-30 |