Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6162980 | Electronic upright piano and a method of manufacture thereof | Riichi Kitashima, Muneo Ishida, Masaji Kimura | 2000-12-19 |
| 5959223 | Method of assembling an upright piano | Riichi Kitashima, Makoto Kanemitsu, Hidetaka Hanajima | 1999-09-28 |