Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9576564 | Performance recording apparatus | Kenichi Yamauchi, Fukutaro Okuyama | 2017-02-21 |
| 8690532 | Nozzle box of axial flow turbine and axial flow turbine | Yasunori Iwai, Tsutomu Ooishi, Yoshiki Niizeki | 2014-04-08 |
| 7381880 | Musical instrument recording advanced music data codes for playback, music data generator and music data source for the musical instrument | Yuji Fujiwara | 2008-06-03 |
| 6380470 | Training system for music performance, keyboard musical instrument equipped therewith and training keyboard | Yuji Fujiwara, Kiyoshi Kawamura | 2002-04-30 |
| 6084167 | Keyboard instrument with touch responsive display unit | Teruo Akimoto, Kiyoshi Kawamura, Yasuhiko Ohba, Tadaharu Kato, Masaaki Suzuki +2 more | 2000-07-04 |
| 6075196 | Player piano reproducing special performance techniques using information based on musical instrumental digital interface standards | Yuji Fujiwara, Takashi Tamaki, Yasuhiko Oba | 2000-06-13 |
| 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, Yasuhiko Oba | 1999-11-02 |
| 5739450 | Keyboard musical instrument equipped with dummy key/hammer event supplementing system | Yuji Fujiwara, Yoshimasa Isozaki, Yasuhiko Oba | 1998-04-14 |
| 5652399 | Automatic player piano and estimator for acceleration of depressed key incorporated in the automatic player piano | Yuji Fujiwara, Yasuhiko Oba, Shigeru Muramatsu, Yoshimasa Isozaki, Jun Ishii | 1997-07-29 |
| 5627333 | Keyboard musical instrument equipped with built-in distance measuring instrument for hammer sensors | Wayne L. Stahnke, Yuji Fujiwara, Rei Furukawa, Takashi Tamaki | 1997-05-06 |