Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9449586 | Keyboard device | Shin Yamamoto, Yu Yoshizaki | 2016-09-20 |
| 8541672 | Pedal apparatus of electronic musical instrument | Toshiyuki Iwamoto, Shigeru Muramatsu, Koichi Saigo | 2013-09-24 |
| 8158876 | Keyboard apparatus | Hirotsugu Suzuki | 2012-04-17 |
| 8119895 | Keyboard assembly for electronic musical instrument | — | 2012-02-21 |
| 8003871 | Keyboard apparatus | — | 2011-08-23 |
| 7956261 | Pedal apparatus of electronic musical instrument | Toshiyuki Iwamoto, Shigeru Muramatsu, Koichi Saigo | 2011-06-07 |
| 7897860 | Keyboard apparatus | Ichiro Osuga | 2011-03-01 |