Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11017971 | Differential electrical protection device that measures a differential current over a plurality of phase conductors | Yutaka Sato, Takashi Hashimoto, Yohei Hosooka | 2021-05-25 |