Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10715907 | Speaker unit, speaker system, and method for adjusting vibration displacement of vibration diaphragm | Xinfeng Yang | 2020-07-14 |
| 10638233 | Speaker module and sound production device | Huixian Cao, Xinfeng Yang, Guofu Wang, Shu Jiang, Huaisheng Zhang | 2020-04-28 |
| 10582323 | Speaker module housing and manufacturing method thereof | Xinfeng Yang | 2020-03-03 |
| 10542344 | Loudspeaker module and manufacturing method thereof | Xinfeng Yang, Tongyan Xu | 2020-01-21 |