Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11176916 | Keyboard device and electronic musical instrument | Tateki Yamamura, Yoshiki Takaki, Hitoshi Sato | 2021-11-16 |
| 11145278 | Keyboard instrument | Yoshiyasu Kitagawa | 2021-10-12 |
| 10991351 | Electronic keyboard instrument and keyboard device | Hitoshi Sato | 2021-04-27 |