Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10424275 | Upright piano | Keiichi Fukatsu, Azumi Yoshida, Hiroshi Komada, Taishi SHINOHARA | 2019-09-24 |
| 7999162 | Movable part firmly equipped with balance weight, musical instrument and method of assembling balance weight therein | Noboru Yamashita, Satoshi Inoue | 2011-08-16 |
| 7807911 | Keyboard musical instrument having keys equipped with balancers biting into keys and method for securing balancers to keys | Noboru Yamashita, Satoshi Inoue | 2010-10-05 |
| 7345235 | Keyboard musical instrument having keys equipped with balancers biting into keys and method for securing balancers to keys | Noboru Yamashita, Satoshi Inoue | 2008-03-18 |