Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9747885 | Noise reduction system | Osamu Nishimura, Akihiko Enamito | 2017-08-29 |
| 9602928 | Speaker system having a sound collection unit for combining sound waves | Akihiko Enamito, Osamu Nishimura | 2017-03-21 |
| 9578414 | Active noise-reduction apparatus | Osamu Nishimura, Akihiko Enamito | 2017-02-21 |