Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4740858 | Zero-current arc-suppression dc circuit breaker | Satarou Yamaguchi | 1988-04-26 |
HH
Hirohide Hirayama
Overall (All Time): #3,950,901 of 4,157,543Top 100%
1
Patents All Time