Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309109 | Forcible grounding generation equipment and grounding occurrence detection equipment using the same | Kazuo Nishijima | 1994-05-03 |
| 5295035 | Power distribution line protection system | Kazuo Nishijima, Mitsuru Nakamura | 1994-03-15 |