Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7919951 | System stabilization control system | Masatoshi Takeda, Yoshiyuki Kono, Koji Temma | 2011-04-05 |
| 7688043 | Reactive-power control apparatus and reactive-power compensator using the same | Masatoshi Takeda, Yoshiyuki Kono, Koji Temma | 2010-03-30 |
| 5808462 | Apparatus for detecting the amplitude and phase of an a.c. signal | Toshiyuki Fujii, Shinzo Tamai, Hatsuhiko Naitoh | 1998-09-15 |
| 5731698 | Apparatus for detecting the amplitude and phase of an a.c. signal | Toshiyuki Fujii, Shinzo Tamai, Hatsuhiko Naitoh | 1998-03-24 |
| 5717583 | Power converter control apparatus for controlling commutation of switching devices under transient conditions | Masamori Nobayashi, Koji Yamaji, Kazuo Kato, Shinzo Tamai, Toshiyuki Fujii +1 more | 1998-02-10 |
| 5714877 | Apparatus for detecting the amplitude and phase of an A.C. signal | Toshiyuki Fujii, Shinzo Tamai, Hatsuhiko Naitoh | 1998-02-03 |
| 5602469 | Apparatus for detecting the amplitude and phase of an a.c. signal | Toshiyuki Fujii, Shinzo Tamai, Hatsuhiko Naitoh | 1997-02-11 |
| 5498955 | Apparatus for detecting the amplitude and phase of an a.c. signal | Toshiyuki Fujii, Shinzo Tamai, Hatsuhiko Naitoh | 1996-03-12 |