Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6037551 | Safety switch | Takao Fukui | 2000-03-14 |
| 4771253 | Operation indicating device for electromagnetic relay | Toshiyuki Kasama, Shigeru Tsujimura, Toshio Watanabe | 1988-09-13 |