Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7973233 | Musical tone control system for grand-type piano | Kenichi Hirota, Tetsuya Hirano | 2011-07-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7973233 | Musical tone control system for grand-type piano | Kenichi Hirota, Tetsuya Hirano | 2011-07-05 |