Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10433055 | Speaker system with moving voice coil | Guodong Zhao, Xinfeng Yang | 2019-10-01 |
| 10397718 | Vibration diaphragm and manufacturing method thereof | Guodong Zhao, Xinfeng Yang | 2019-08-27 |
| 10299033 | Loudspeaker module | Xinfeng Yang, Tongyan Xu | 2019-05-21 |