Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9949016 | Earphone device having concentrating tube | — | 2018-04-17 |
| 9628899 | Piezoelectric ceramic speaker and dual-band earphone having thereof | Ying-Shih Huang | 2017-04-18 |
| 9615162 | Earphone with inverse sound waves | Ying-Shih Huang | 2017-04-04 |
| 9613614 | Noise-reducing headphone | — | 2017-04-04 |
| 9602913 | Dual-frequency coaxial headphone | — | 2017-03-21 |
| 9532133 | Dual-frequency coaxial earphone | Ying Huang | 2016-12-27 |
| 9516403 | Earphone with stand-alone high-frequency driver | — | 2016-12-06 |
| 9503805 | Piezoelectric ceramic dual-frequency earphone structure | Ming-Fang Hung | 2016-11-22 |
| 9467784 | Piezoelectric-type speaker | Ming-Fang Hung | 2016-10-11 |
| 9467762 | Earphone device having sound guiding structures | Ying Huang | 2016-10-11 |
| 9414148 | Ear-hugging noise-reducing headphones | Shun-Peng Lin | 2016-08-09 |
| 9191731 | Dual-frequency coaxial earphone | Ying Huang | 2015-11-17 |
| 8937248 | Earphone cable structure | — | 2015-01-20 |
| 8831266 | Tunable earphone | — | 2014-09-09 |
| 8774442 | Earphone single-shaft structure | — | 2014-07-08 |
| D624529 | Earphone | — | 2010-09-28 |