Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9646596 | Active noise reduction device, instrument using same, and active noise reduction method | Mitsuhiro Tani, Toshiyuki Funayama | 2017-05-09 |
| 9596540 | Active noise reduction device and active noise reduction method | Mitsuhiro Tani, Toshiyuki Funayama | 2017-03-14 |