Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10128071 | Abrasion resistant material, puffer cylinder, and puffer type gas circuit breaker | Masahiko Ono, Makoto Hirose, Hisashi Urasaki | 2018-11-13 |
| 9870884 | Gas circuit breaker | Masanao Terada, Hajime Urai, Hiroaki Hashimoto, Riichi NAGAO | 2018-01-16 |