Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7368644 | Top board structure for keyboard instrument | Fumiyoshi Furuki | 2008-05-06 |
| 7267316 | Brace rotating mechanism | Fumiyoshi Furuki | 2007-09-11 |
| 7140588 | Brace rotating mechanism | Fumiyoshi Furuki | 2006-11-28 |
| 6992242 | Keyboard musical instrument equipped with automatic top board spacer | Fumiyoshi Furuki | 2006-01-31 |