Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9025787 | Earphone plug with mode switching function | Chiu-Yun Tung, Fang-Chang Hsieh, Chiung-Wen Yeh | 2015-05-05 |
| 8532325 | Earphone device with bass adjusting function | Chiu-Yun Tung, Fang-Chang Hsieh, Chung-Yi Huang | 2013-09-10 |