Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6271447 | Velocity calculating system for moving object widely varied in velocity method for correcting velocity and keyboard musical instrument equipped with the velocity calculating system for accurately determining loudness of sounds | Yuji Fujiwara, Tomoyuki Ura | 2001-08-07 |
| 6111174 | Released key velocity estimator, method used therein and information storage medium storing program sequence for it | Takashi Tamaki, Yuji Fujiwara | 2000-08-29 |
| 6075196 | Player piano reproducing special performance techniques using information based on musical instrumental digital interface standards | Yuji Fujiwara, Takashi Tamaki, Taro Kawabata | 2000-06-13 |
| 6051762 | Data converter for producing individual music data from standard music data on the basis of the individuality of an automatic player piano learned before conversion | Yuji Fujiwara | 2000-04-18 |
| 5978201 | Design for solenoid driving circuit based on regulations of current ripple and solenoid effective time constant for driving keys of a player piano | Yuji Fujiwara, Taro Kawabata | 1999-11-02 |
| 5892165 | Automatic player piano exactly reproducing acoustic sound produced under manipulation of sostenuto pedal | Yuji Fujiwara | 1999-04-06 |
| 5739450 | Keyboard musical instrument equipped with dummy key/hammer event supplementing system | Yuji Fujiwara, Taro Kawabata, Yoshimasa Isozaki | 1998-04-14 |
| 5731530 | Automatic player piano exactly reproducing special touches | Yuji Fujiwara, Rei Furukawa | 1998-03-24 |
| 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 |
| 5262586 | Sound controller incorporated in acoustic musical instrument for controlling qualities of sound | Yoshinori Suzuki, Hiroshi Umeji, Masahiro Wada, Satoshi Inoue | 1993-11-16 |
| 5072644 | Synthetic recording device in an automatic performance piano | Yoshimasa Isozaki | 1991-12-17 |