Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5973241 | Keyboard musical instrument having an improved cover opening/closing mechanism | — | 1999-10-26 |
| 4936185 | Electronic musical instrument having plural component blocks | Yorihisa Yamaguchi, Hiroyuki Kawai, Fujiyo Mandai | 1990-06-26 |