Patents per Year
Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12219339 | Speaker | Hongjian Hu, Shuai Li | 2025-02-04 |
| 10932044 | Speaker | Hongjian Hu, Shuai Li | 2021-02-23 |
| 10932052 | Voice coil, method for winding voice coil, and speaker having voice coil | Hongjian Hu, Shuai Li | 2021-02-23 |
| 10924863 | Diaphragm and speaker | Hongjian Hu, Shuai Li | 2021-02-16 |
| 10750286 | Speaker | Hongjian Hu | 2020-08-18 |
| 10674272 | Speaker | Hongjian Hu, Shuai Li | 2020-06-02 |
| 8883316 | Composite material and high frequency substrate made therefrom | — | 2014-11-11 |
| 8551628 | Composite material, high-frequency circuit substrate made therefrom and making method thereof | — | 2013-10-08 |
| 8269115 | Composite material and high-frequency circuit substrate made therefrom | — | 2012-09-18 |