Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4626656 | Method and apparatus for indicating the contact structure of electromagnetic contactor on the housing thereof using laser light | Shigeharu Ootsuka, Yuji Mizuno, Takaaki Mori | 1986-12-02 |