Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498314 | Vacuum switch and vacuum switchgear using the same | Takuya Miyo, Syuuichi Kikukawa, Katunori Kojima, Ayumu Morita, Hiroshi Yokoyama +2 more | 2002-12-24 |
| 6495786 | Vacuum exhaust element of vacuum switch | Masashige Tsuji, Ayumu Morita, Katsunori Kojima, Yuichi Ishikawa, Yoshiharu Yotsumoto | 2002-12-17 |
| 6437275 | Vacuum circuit-breaker, vacuum bulb for use therein, and electrodes thereof | Shigeru Kikuchi, Masato Kobayashi, Katsuhiro Komuro, Yoshimi Hakamata, Kathumi Kuroda +2 more | 2002-08-20 |