Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691489 | Automatic player piano exactly reproducing half stroke in playback | Yuji Fujiwara, Yasuhiko Oba | 1997-11-25 |
| 5650580 | Automatic playing system for acoustic musical instrument | Haruki Uehara | 1997-07-22 |