Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11447223 | Control device for battery of marine vessel, control method therefor, and marine vessel | — | 2022-09-20 |
| 11297419 | Array microphone and sound collection method | Takashi Yamakawa | 2022-04-05 |