Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6147289 | Keyboard assembly and method of manufacturing it | — | 2000-11-14 |
| 5942705 | Leaf spring and mounting construction of the same | Tsuyoshi Sato | 1999-08-24 |
| 5932825 | Keyboard apparatus with white keys and black keys having substantially the same action members | Tsuyoshi Sato | 1999-08-03 |
| 5834668 | Keyboarding apparatus for electronic musical instrument with simplified mass member and method of making mass member | Tsuyoshi Sato | 1998-11-10 |
| 5824928 | Keyboard apparatus for musical instrument | Tsuyoshi Sato | 1998-10-20 |
| 5796023 | Keyboard apparatus with white keys and black keys having action member driving sections at substantially the same location | Tsuyoshi Sato | 1998-08-18 |
| 5574241 | Keyboard apparatus with common stopper for key and hammer | Takamichi Masubuchi | 1996-11-12 |
| RE35161 | Keyboard device of electronic musical instrument | Motoshi Murasaki | 1996-02-27 |
| 5090290 | Keyboard device of electronic musical instrument | Motoshi Murasaki | 1992-02-25 |
| 5081896 | Musical tone generating apparatus | Teruo Hiyoshi, Hideo Suzuki, Eiichiro Aoki, Akira Nakada, Kunihiko Watanabe +1 more | 1992-01-21 |
| 5005460 | Musical tone control apparatus | Hideo Suzuki, Shunichi Matsushima, Masahiko Obata, Masao Sakama, Akira Nakada | 1991-04-09 |
| 4901614 | Keyboard apparatus of electronic musical instrument | Keisuke Watanabe, Susumu Ohi | 1990-02-20 |
| 4846041 | Keyboard device of electronic musical instrument | Motoshi Murasaki | 1989-07-11 |
| 4604937 | Keyboard device of electronic musical instrument | Motoshi Murasaki | 1986-08-12 |
| 4602549 | Keyboard device having cushioned weight member for electronic musical instrument | — | 1986-07-29 |
| 4512234 | Keyboard device having cushioned weight member for electronic musical instrument | — | 1985-04-23 |
| 4510839 | Keyboard structures of electronic musical instruments | — | 1985-04-16 |
| 4488472 | Keyboard musical instrument | Masao Kondo | 1984-12-18 |
| 4476769 | Keyboard apparatus in electronic musical instrument | — | 1984-10-16 |
| 4464325 | Method of producing multi-key structure for keyboard musical instruments | Masao Kondo | 1984-08-07 |
| 4351222 | Keyboard musical instrument with casing comprising two halves | — | 1982-09-28 |
| 4334453 | Keyboard musical instrument with removable box leg | — | 1982-06-15 |