Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8776367 | Method of manufacturing an electret film | Shih-Yuan Lee, Chih-Kung Lee, Wen-Ching Ko, Jia Chen, Wen-Hsin Hsiao +1 more | 2014-07-15 |
| 8503702 | Electret diaphragm and speaker using the same | Che-I Kao, Chih-Kung Lee, Wen-Ching Ko, Chang-Ho Liou, Ming-Daw Chen +2 more | 2013-08-06 |
| 8111847 | Electret materials, electret speakers, and methods of manufacturing the same | Shih-Yuan Lee, Chih-Kung Lee, Wen-Ching Ko, Jia Chen, Wen-Hsin Hsiao +1 more | 2012-02-07 |
| 8009838 | Electrostatic loudspeaker array | Chih-Kung Lee, Wen-Ching Ko, Ji Huang, Jia Chen, Wen-Hsin Hsiao +3 more | 2011-08-30 |