Issued Patents 1997
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679961 | Correlation tunnel device | Hitoshi Higurashi, Akira Toriumi, Fumiko Yamaguchi, Alfred W. Hübler | 1997-10-21 |
| 5616880 | Keyboard musical instrument equipped with hammer shank stopper where hammer assembly rebounds without deflection of shank | Hajime Hayashida, Takashi Aoyagi, Satoshi Inoue, Ringi Nozue, Shigeaki Sato | 1997-04-01 |
| 5610356 | Keyboard musical instrument having hammer stopper exactly position at blocking position | Shinya Koseki | 1997-03-11 |
| 5608175 | Keyboard musical instrument having regulable regulating buttons linked with hammer stopper | — | 1997-03-04 |
| 5602351 | Grand piano-like keyboard instrument for selectively producing acoustic sound and synthesized sound | Yasutoshi Kaneko | 1997-02-11 |
| 5594188 | Keyboard musical instrument having key action mechanisms movable to and from strings | Taroh Muramatsu, Masahiro Wada, Nobuo Sugiyama, Shinya Koseki | 1997-01-14 |
| 5591927 | Keyboard musical instrument having key action mechanisms movable to and from strings | Taroh Muramatsu, Masahiro Wada, Nobuo Sugiyama, Shinya Koseki | 1997-01-07 |