Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652491 | Position controller for an electric motor | Yasushi Ikawa, Shizuo Kumekawa, Tetsuaki Nagano, Fumio Kumazaki | 1997-07-29 |
| 5597064 | Electric contact materials, production methods thereof and electric contacts used these | Keiji Mashimo | 1997-01-28 |