Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664494 | Current collector and gas circuit breaker | Makoto Hirose, Tomoyuki Andou | 2003-12-16 |
| 6624370 | Gas circuit breaker | Takuichiro Soga, Wataru Tamura, Hideo Kawamoto, Takeshi Iryo | 2003-09-23 |
| 6621030 | Gas-insulated switchgear | Tomoyuki Andou, Makoto Hirose, Osamu Koyanagi | 2003-09-16 |
| 6515247 | Gas insulated switchgear | Keiichi Tsuzura, Kazuhiko Takahashi, Minoru Yabuki | 2003-02-04 |