Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4507701 | Lighting arrester with leakage current detection | Yukio Fujiwara, Mitsumasa Imataki | 1985-03-26 |
SS
Seiji Sonoyama
Overall (All Time): #4,012,414 of 4,157,543Top 100%
1
Patents All Time