| 6753494 |
Sintered body and electrode, method for surface densitication of these, process for manufacturing electrode by this method and circuit breaker |
Yohei Asakawa, Hideaki Onozuka, Motohiro Kikuchi, Masato Kobayashi, Masaya Takahashi +1 more |
2004-06-22 |
| 6048216 |
Vacuum circuit breaker as well as vacuum valve and electric contact used in same |
Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Toru Tanimizu, Yoshimi Hakamata +1 more |
2000-04-11 |
| 5852266 |
Vacuum circuit breaker as well as vacuum valve and electric contact used in same |
Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Toru Tanimizu, Yoshimi Hakamata +1 more |
1998-12-22 |
| 5697150 |
Method forming an electric contact in a vacuum circuit breaker |
Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Toru Tanimizu, Yoshimi Hakamata +1 more |
1997-12-16 |
| 5557083 |
Vacuum circuit breaker and electric contact |
Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Toru Tanimizu, Yoshimi Hakamata +1 more |
1996-09-17 |