Issued Patents 2019
Showing 1–1 of 1 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 | Li Lu, Yoshio Hamadate, Toshiaki Rokunohe, Akira YAMAGISHI | 2019-12-17 |