Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4565901 | Gas-insulated electric device | Koichi Hirooka, Setsuyuki Matsuda | 1986-01-21 |
YA
Yoshikuni Arahata
Overall (All Time): #3,989,138 of 4,157,543Top 100%
1
Patents All Time