Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5223659 | Electronic musical instrument with automatic accompaniment based on fingerboard fingering | Kazuyoshi Shiraki, Shiro Ishiguro | 1993-06-29 |
| 5040448 | Electronic musical instrument with user-programmable tone generator modules | Kenichi Tsutsumi, Youji Kaneko, Takashi Akutsu, Naofumi Tateishi | 1991-08-20 |
| 4986157 | Electronic musical instrument with a fret-split function | — | 1991-01-22 |
| 4966052 | Electronic musical instrument | Kazuyoshi Shiraki, Shiro Ishiguro | 1990-10-30 |
| 4901616 | Electronic musical instrument with delay trigger function | Takahashi Akutsu | 1990-02-20 |
| 4854209 | Electronic musical instrument with key scaling using multiple set points | Kenichi Tsutsumi, Youji Kaneko, Takashi Akutsu, Naofumi Tateishi | 1989-08-08 |
| 4622879 | Electronic musical instrument | — | 1986-11-18 |