Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8916757 | Lid opening/closing mechanism for keyboard musical instrument | Sayo Tsuchimoto, Hiromi Negi | 2014-12-23 |
| 7329812 | Electronic musical instrument | Shigetoshi Kuwahara | 2008-02-12 |
| 7326845 | Music stand device and musical instrument having the musical stand device | — | 2008-02-05 |