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, Toru Tanimizu, Syuuichi Kikukawa, Katunori Kojima, Hiroshi Yokoyama +2 more | 2002-12-24 |
| 6495786 | Vacuum exhaust element of vacuum switch | Masashige Tsuji, Toru Tanimizu, Katsunori Kojima, Yuichi Ishikawa, Yoshiharu Yotsumoto | 2002-12-17 |
| 6426627 | Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof | Shuuichi Kikukawa, Katsunori Kojima, Tooru Tanimizu, Masashige Tsuji | 2002-07-30 |