Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7973233 | Musical tone control system for grand-type piano | Kenichi Hirota, Tetsuya Hirano | 2011-07-05 |
| 6750389 | Musical performance control method, musical performance control apparatus and musical tone generating apparatus | Yutaka Hagiwara, Kenji Kamada, Masahiko Iwase, Shinji Niitsuma, Toshinori Matsuda | 2004-06-15 |
| 5600077 | Damper mechanism provided in a grand piano | — | 1997-02-04 |
| 5524519 | Piano provided with a mechanism for controlling string striking movement | Hiroshi Matsunaga | 1996-06-11 |
| 5012715 | Sensor for an automatic piano player apparatus | Hiroshi Matsunaga, Haruhiko Matsui, Masahiko Akita, Tatsuya Inaba, Tetsusai Kondo +1 more | 1991-05-07 |