Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6615441 | Cleaning apparatus | — | 2003-09-09 |
| 5208416 | Automatic performance device | Tokuji Hayakawa, Takeo Shibukawa | 1993-05-04 |
| 5056401 | Electronic musical instrument having an automatic tonality designating function | Hasegawa Tsutomu | 1991-10-15 |
| 4991487 | Automatic musical accompaniment sound generating apparatus | — | 1991-02-12 |
| 4936185 | Electronic musical instrument having plural component blocks | Hiroyuki Kawai, Fujiyo Mandai, Naoya Tetsumura | 1990-06-26 |