Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11921167 | Earth fault detection apparatus | Yasuyuki Mochizuki, Norio Sudo | 2024-03-05 |
| 11714119 | Earth fault detection apparatus | Yasuyuki Mochizuki, Norio Sudo, Haruhiko Yoshida | 2023-08-01 |
| 11493564 | Ground fault detection device | Hiroaki Takamatsu, Yoshihiro Kawamura | 2022-11-08 |
| 10330716 | Earth fault detector with flying capacitor | Takeshi Iwanabe, Yoshihiro Kawamura | 2019-06-25 |
| 9874595 | Insulation detecting device | Yoshihiro Kawamura | 2018-01-23 |