Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663513 | Keyboard musical instrument performable without noise in silent mode | Haruki Uehara | 1997-09-02 |
| 5652403 | Keyboard musical instrument allowing player to perform ensemble together with electronic sound system | Haruki Uehara | 1997-07-29 |
| 5594188 | Keyboard musical instrument having key action mechanisms movable to and from strings | Kiyoshi Kawamura, Taroh Muramatsu, Masahiro Wada, Shinya Koseki | 1997-01-14 |
| 5591927 | Keyboard musical instrument having key action mechanisms movable to and from strings | Kiyoshi Kawamura, Taroh Muramatsu, Masahiro Wada, Shinya Koseki | 1997-01-07 |