Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6061609 | Electrical power distribution monitoring system and method | Minoru Kanoi, Yuzuru Imamura, Saburou Yasukawa, Toru Takei, Hiroyuki Kudo +3 more | 2000-05-09 |
| 5963457 | Electrical power distribution monitoring system and method | Minoru Kanoi, Yuzuru Imamura, Saburou Yasukawa, Toru Takei, Hiroyuki Kudo +3 more | 1999-10-05 |
| 4836978 | Method for making vacuum circuit breaker electrodes | Ryuji Watanabe, Hisashi Andoh, Kinko Shimizu | 1989-06-06 |
| 4704506 | Vacuum interrupter | Yukio Kurosawa, Morihisa Matumoto, Takanao Kurasawa, Syunkichi Endo | 1987-11-03 |
| 4695689 | Vacuum circuit breaker | Yukio Kurosawa | 1987-09-22 |
| 4547639 | Vacuum circuit breaker | Ryuji Watanabe, Sadami Tomita, Keiichi Kuniya, Hideaki Tsuda | 1985-10-15 |
| 4546222 | Vacuum switch and method of manufacturing the same | Ryuji Watanabe, Akira Wada, Hisashi Ando, Seiki Shimizu, Yukio Kurosawa | 1985-10-08 |
| 4430536 | Vacuum interrupter | Yukio Kurosawa, Akira Wada, Hideaki Tsuda | 1984-02-07 |
| 4427857 | Vacuum interrupter | Nobuo Abe, Hiroyuki Sugawara, Yukio Kurosawa, Akira Wada | 1984-01-24 |