Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11212608 | Noise elimination device and noise elimination method | — | 2021-12-28 |
| 10975895 | Piston structure body and lifting device of watercraft propulsion apparatus | Hayato Tsutsui | 2021-04-13 |
| 10939198 | Noise eliminating device, echo cancelling device, and abnormal sound detecting device | — | 2021-03-02 |