Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11303755 | Conference system | Kazuhiro Onizuka | 2022-04-12 |
| 11227618 | Sound signal processing device, sound signal processing method and sound signal processing program | Kazuhiro Onizuka, Yasuhito Kikuhara, Yuri Jitsukata | 2022-01-18 |
| 10971169 | Sound signal processing device | Yasuhito Kikuhara, Yuri Jitsukata | 2021-04-06 |
| 10791156 | Conference system | Kazuhiro Onizuka, Yasuhito Kikuhara | 2020-09-29 |
| 10666809 | Conference system | Kazuhiro Onizuka | 2020-05-26 |
| 10157603 | Noise detector and sound signal output device | Yasuhito Kikuhara, Kazuhiro Onizuka | 2018-12-18 |