Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10509021 | Diagnosing device for on-load tap changing apparatus, diagnosing method for on-load tap changing apparatus, and diagnosing device for transformer | Yoshio Hamadate, Toshiaki Rokunohe, Akira YAMAGISHI, Hideyuki Miyahara | 2019-12-17 |
| 10234355 | Leakage oil detection system | Satoshi Ichimura, Tomohiro Moriyama, Jun Nukaga, Akira YAMAGISHI, Yasutomo Saito | 2019-03-19 |