Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864558 | Self-routing switch | Hitoshi Imagawa, Shigeo Urushidani | 1989-09-05 |
| 4385336 | Current supplying circuit with shorted-to-ground fault detecting function | Tetsuo Takeshita, Junjiro Kitano | 1983-05-24 |