Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4325096 | Zero-phase current transformer | Mineo Sunohara, Yasuhiko Okubo, Yoshiyuki Nakai, Yukio Miyazaki | 1982-04-13 |
| 4234900 | Ground fault detector | Yukio Miyazaki | 1980-11-18 |