Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6545203 | Opening and closing assist for a front lid of a keyboard instrument | — | 2003-04-08 |
| 6469237 | Apparatus for opening and closing top board of grand piano | — | 2002-10-22 |
| 6281419 | Method of mounting plate in grand piano | — | 2001-08-28 |
| 6145197 | Method of assembling a grand piano | Riichi Kitashima, Yutaka Nakao | 2000-11-14 |