Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689598 | Electrical fuse | Hiroshi Ishikawa | 1987-08-25 |
| 4596310 | Driving apparatus for an energy accumulator of a circuit breaker | Shunichi Hatakeyama | 1986-06-24 |
| 4484044 | Vacuum load switch with a disconnecting switch | — | 1984-11-20 |