Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5248846 | Musical instrument incorporating a Helmholtz resonator | Tatsuhiro Koike, Toshiyuki Suzuki | 1993-09-28 |
| 5086686 | Keyboard instrument | Toshiyuki Suzuki | 1992-02-11 |
| 5031500 | Keyboard instrument | Tatsuhiro Koike, Toshiyuki Suzuki | 1991-07-16 |