Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652399 | Automatic player piano and estimator for acceleration of depressed key incorporated in the automatic player piano | Yuji Fujiwara, Taro Kawabata, Yasuhiko Oba, Shigeru Muramatsu, Jun Ishii | 1997-07-29 |