Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10373596 | Hammer device and keyboard device for electronic keyboard instrument | Akihiro Suzuki | 2019-08-06 |
| 8481841 | Musical tone control system for electronic keyboard instrument | — | 2013-07-09 |
| 8110732 | Keyboard device for electronic keyboard instrument | — | 2012-02-07 |
| 8080721 | Hammer for electronic keyboard instrument | — | 2011-12-20 |
| 7550659 | Keyboard apparatus | — | 2009-06-23 |
| 7208668 | Keyboard device for keyboard instrument | — | 2007-04-24 |
| 6653542 | Keyboard device for electronic keyboard musical instrument | Akihiro Suzuki | 2003-11-25 |
| 6617502 | Keyboard device for electronic keyboard musical instrument | Akihiro Suzuki | 2003-09-09 |
| 5542332 | Keyboard apparatus for electronic musical instrument | Yutaka Tamai, Kazuhiro Tsukamoto | 1996-08-06 |
| 5487321 | Keyboard lid, its open-close structure and arm members for keyed instrument | Masaji Kimura | 1996-01-30 |
| 5465644 | Stand structure for a keyed instrument | Masaji Kimura | 1995-11-14 |
| 5458429 | Securing structure for a stand of keyed instrument | — | 1995-10-17 |
| 5429026 | Keyboard lid, its open-close structure and arm members for keyed instrument | Masaji Kimura | 1995-07-04 |
| 5406875 | Keyboard apparatus for electronic musical instrument | Yutaka Tamai, Kazuhiro Tsukamoto | 1995-04-18 |
| 5353675 | Open-close structure for a keyed instrument | Masaji Kimura | 1994-10-11 |
| 5079985 | Keyboard apparatus for electronic keyboard musical instrument | Tsutomu Yamaguchi, Yutaka Tamai | 1992-01-14 |
| 5036743 | Keyboard device for electronic musical instrument | Tsutomu Yamaguchi, Norizou Kamimura, Yutaka Tamai | 1991-08-06 |