Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7554173 | Semiconductor device | Takashi Inaguchi, Takeshi Ohi, Katsuhiko Fukuhara, Naoshi Yamada, Yoshitsugu Inaba | 2009-06-30 |
| 6573815 | Circuit breaker | Mitsuru Tsukima, Masahiro Fushimi, Shinji Yamagata | 2003-06-03 |
| 6373014 | Current limiting device and circuit interrupter having a current limiting function | Mitsuru Tsukima, Mitsugu Takahashi, Masahiro Fushimi, Kazunori Fukuya, Shiro Murata +1 more | 2002-04-16 |
| 6361848 | Organic and inorganic complex compound and switch using same | Shunichi Katsube, Tosikazu Uemoto, Kenichi NISHINA, Kazunori Fukuya, Shinji Yamagata +7 more | 2002-03-26 |
| 5990440 | Switch and arc extinguishing material for use therein | Shoji Yamaguchi, Itsuo Nishiyama, Fumiaki Baba, Mitugu Takahasi, Kazuharu Kato +7 more | 1999-11-23 |
| 5841088 | Switch and arc extinguishing material for use therein | Shoji Yamaguchi, Itsuo Nishiyama, Fumiaki Baba, Mitugu Takahasi, Kazuharu Kato +7 more | 1998-11-24 |
| 5596184 | Switch including a moving element, a repelling element and a conductor | Mitsugu Takahashi, Kazunori Fukuya, Kenichi NISHINA, Shinji Yamagata | 1997-01-21 |
| 5583328 | High voltage switch including U-shaped, slitted stationary contact assembly with arc extinguishing/magnetic blowout features | Mitsugu Takahashi, Kazunori Fukuya, Kenichi NISHINA, Shinji Yamagata | 1996-12-10 |
| 5313031 | Electric switch gear with improved stationary contact configuration | Mitsugu Takahashi, Kenichi NISHINA | 1994-05-17 |
| 5159304 | Current limiting circuit breaker | Shinji Yamagata, Yoshiaki Kobayashi, Mitsugu Takahashi | 1992-10-27 |
| 5122625 | Circuit breaker | Yoshiaki Kobayashi, Mitsugu Takahashi, Shinji Yamagata | 1992-06-16 |
| 5073764 | Current limiting apparatus | Mitsugu Takahashi, Yoshiaki Kobayashi, Shinji Yamagata | 1991-12-17 |