Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9532134 | Sound pickup apparatus | Yuichiro Suenaga, Satoshi Ukai, Ryo Oouchi | 2016-12-27 |
| 9294833 | Sound collection device | Ryo Oouchi, Yuichiro Suenaga, Satoshi Ukai | 2016-03-22 |
| 9204224 | Electrostatic speaker | — | 2015-12-01 |