Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616880 | Keyboard musical instrument equipped with hammer shank stopper where hammer assembly rebounds without deflection of shank | Takashi Aoyagi, Satoshi Inoue, Ringi Nozue, Kiyoshi Kawamura, Shigeaki Sato | 1997-04-01 |
| 5583306 | Keyboard musical instrument having jacks changeable in escape speed between acoustic sound mode and silent mode | Satoshi Inoue, Takashi Aoyagi | 1996-12-10 |
| 5557052 | Keyboard musical instrument having variable contact point between jack and regulation button | Satoshi Inoue | 1996-09-17 |
| 5353671 | Upright piano with key action mechanism responsive to repetition without double strike and loss of sound | Satoshi Inoue | 1994-10-11 |
| 5196638 | Muting device of upright piano | Satoshi Inoue, Toshiaki Sakai | 1993-03-23 |
| 5170000 | Sound board assembly for musical instruments | Toshiya Yamada, Kinya Nozaki, Akira Takemura | 1992-12-08 |
| 4924742 | Mechanical keyboard instrument with pedal mechanisms | Motoichi Numata, Kinya Nozaki, Toshiaki Sakai | 1990-05-15 |
| 4524669 | Key-driving/detecting mechanism for keyboard instrument | Jun Yamamoto, Hiroyoshi Takahashi | 1985-06-25 |