Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10347224 | Key of keyboard instrument | — | 2019-07-09 |
| 9361861 | Weight for key and key for keyboard musical instrument | — | 2016-06-07 |
| 8921676 | Key for keyboard instrument | — | 2014-12-30 |
| 8748725 | Key switch for electronic piano | Hideyuki Ishida | 2014-06-10 |
| 6750389 | Musical performance control method, musical performance control apparatus and musical tone generating apparatus | Yutaka Hagiwara, Kenji Kamada, Hisamitsu Honda, Shinji Niitsuma, Toshinori Matsuda | 2004-06-15 |
| 5580312 | Damper disk assembly | Hiroshi Takeuchi | 1996-12-03 |
| 5190381 | Release bearing assembly | Tooru Hamada, Syogo Ohga | 1993-03-02 |
| 5088583 | Clutch cover assembly with spring biased release assembly | Hiroshi Takeuchi, Hiromi Tojima, Ikuo Murata, Norihisa Uenohara | 1992-02-18 |