Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6574084 | Electromagnetic repulsion driven switch | Yukimori Kishida, Hiroyuki Sasao, Chie Takahashi, Kazuhiko Kagawa, Yoichi Ueno +2 more | 2003-06-03 |
| 6369995 | Protection relay device for distribution equipment | Kazuhiko Kagawa | 2002-04-09 |
| 6295191 | Switching apparatus | Yukimori Kishida, Kazuhiko Kagawa, Hiroyuki Sasao, Chie Takahashi, Toshie Takeuchi +1 more | 2001-09-25 |