Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819125 | Overcurrent detector | Ichirou Arinobu | 1989-04-04 |
| 4814935 | Circuit breaker reactive to three time-overcurrent characteristics | Ichirou Arinobu | 1989-03-21 |
YH
Yoshihiro Hatakeyama
Overall (1989): #12,533 of 140,708Top 9%
2
Patents 1989