Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11356789 | Signal processing device, channel setting method, and speaker system | Tatsuya Tamaki, Kenji Yorimoto, Yosuke Samura | 2022-06-07 |
| 10986442 | Wearable speaker and reproduction apparatus | — | 2021-04-20 |
| 10757492 | Speaker apparatus and reproduction apparatus | Takashi Tsurumoto | 2020-08-25 |
| 10051376 | Edge structure of diaphragm | — | 2018-08-14 |