Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11070039 | Insulation spacer and gas insulation shutoff apparatus using the insulation spacer | Hirokazu Furui, Makoto Hirose | 2021-07-20 |
| 10991529 | Gas-blast circuit breaker | Hideyuki KOTSUJI, Makoto Hirose, Takahiro Nishimura | 2021-04-27 |