Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8283590 | Vacuum circuit breaker | Ryosuke Sasaki | 2012-10-09 |
| 6426475 | Vacuum valve | Kenji Watanabe, Kumi Uchiyama, Kiyoshi Kagenaga, Junichi Sato, Eiji Kaneko +1 more | 2002-07-30 |
| 6376791 | Vacuum valve | Kenji Watanabe, Kumi Uchiyama, Kiyoshi Kagenaga, Junichi Sato, Eiji Kaneko +1 more | 2002-04-23 |
| 6107582 | Vacuum valve | Tsutomu Okutomi, Mitsutaka Homma, Tsuneyo Seki, Atsushi Yamamoto, Takashi Kusano | 2000-08-22 |
| 6080952 | Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization | Tsutomu Okutomi, Tsuneyo Seki, Iwao Ohshima, Mitsutaka Homma, Kumi Uchiyama +2 more | 2000-06-27 |
| 5687472 | Method of manufacturing a vacuum interrupter | Mitsutaka Honma, Tadahiro Aihara, Tsuneyo Seki, Atsushi Yamamoto | 1997-11-18 |