Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9495940 | Keyboard device and keyboard instrument | Akihisa Hoshino | 2016-11-15 |
| 9384715 | Keyboard apparatus and keyboard instrument | — | 2016-07-05 |
| 9324306 | Keyboard device and keyboard instrument | Akihisa Hoshino | 2016-04-26 |