Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10482851 | Key unit and keyboard instrument | Toshiya Kuno, Yuichi Nishimura | 2019-11-19 |
| 10424281 | Hammer unit and keyboard device | Toshiya Kuno | 2019-09-24 |
| 10418003 | Keyboard device and keyboard instrument | — | 2019-09-17 |
| 10380985 | Keyboard device | Toshiya Kuno | 2019-08-13 |
| 10347223 | Keyboard device and keyboard instrument | — | 2019-07-09 |