Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11212634 | Sound signal processing device, sound adjustment method, and medium | Katsumi Kobayashi, Yoshitaka Mizuno | 2021-12-28 |
| 11128975 | Acoustic system and acoustic control device | Katsumi Kobayashi, Yoshitaka Mizuno | 2021-09-21 |
| 10993060 | Acoustic signal processing device and acoustic signal processing method | Shuji Miyasaka | 2021-04-27 |