Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |