Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5591927 | Keyboard musical instrument having key action mechanisms movable to and from strings | Kiyoshi Kawamura, Taroh Muramatsu, Masahiro Wada, Nobuo Sugiyama | 1997-01-07 |
| 5545839 | Keyboard musical instrument with movable key bed for performing music without acoustic sounds | Kiyoshi Kawamura, Toshio Tajima | 1996-08-13 |
| 5541353 | Keyboard instrument for selectively producing mechanical sounds and synthetic sounds without any mechanical vibrations on music wires | Kiyoshi Kawamura, Nobuo Sugiyama, Masahiro Wada | 1996-07-30 |
| 5523522 | Keyboard musical instrument equipped with pedal sensor for discriminating half pedal at high resolution | Jun Yamamoto | 1996-06-04 |
| 5506369 | Electromagnetic actuator used for keyboard musical instrument | Kiyoshi Kawamura | 1996-04-09 |
| 5451706 | Automatic player piano equipped with mute lock system for reproducing faint sounds in playback mode | Jun Yamamoto | 1995-09-19 |
| 5428186 | Keyboard instrument selectively entering into acoustic sound mode and silent mode through angular motion of key bed structure | Yasutoshi Kaneko, Kiyoshi Kawamura | 1995-06-27 |
| 5374775 | Keyboard instrument for selectively producing mechanical sounds and synthetic sounds without any mechanical vibrations on music wires | Kiyoshi Kawamura, Nobuo Sugiyama, Masahiro Wada | 1994-12-20 |
| 5357047 | Method and device for converting source piano playing data for automatic playing piano | Yoshimasa Isozaki | 1994-10-18 |