Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9078061 | Stereo ribbon microphone | Hiroshi Akino | 2015-07-07 |
| 9049509 | Stereo microphone | Hiroshi Akino | 2015-06-02 |
| 8848950 | Condenser microphone | — | 2014-09-30 |
| 8559657 | Capacitor microphone | Hiroshi Akino, Satoshi Yoshino | 2013-10-15 |
| 8447056 | Dynamic microphone | Hiroshi Akino, Hiroaki Furuya, Satoshi Yoshino | 2013-05-21 |
| 8111856 | Variable directional microphone unit and variable directional microphone | Hiroshi Akino | 2012-02-07 |