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, Jun Yamamoto | 1997-11-25 |
| 5652399 | Automatic player piano and estimator for acceleration of depressed key incorporated in the automatic player piano | Yuji Fujiwara, Taro Kawabata, Shigeru Muramatsu, Yoshimasa Isozaki, Jun Ishii | 1997-07-29 |