Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664494 | Current collector and gas circuit breaker | Junzo Kida, Makoto Hirose | 2003-12-16 |
| 6621030 | Gas-insulated switchgear | Junzo Kida, Makoto Hirose, Osamu Koyanagi | 2003-09-16 |