Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12184447 | Data transmission device and data transmission system | Kazuhiro Onizuka | 2024-12-31 |
| 11849290 | Signal processing device | — | 2023-12-19 |
| 11227618 | Sound signal processing device, sound signal processing method and sound signal processing program | Kazuhiro Onizuka, Toru Aikawa, Yuri Jitsukata | 2022-01-18 |
| 11212630 | Signal processing device | — | 2021-12-28 |
| 10971169 | Sound signal processing device | Toru Aikawa, Yuri Jitsukata | 2021-04-06 |
| 10791156 | Conference system | Kazuhiro Onizuka, Toru Aikawa | 2020-09-29 |
| 10225409 | Conference system | Kazuyuki Sakurai, Kazue Matsumoto | 2019-03-05 |
| 10157603 | Noise detector and sound signal output device | Kazuhiro Onizuka, Toru Aikawa | 2018-12-18 |