Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812730 | Variable-speed generator/motor system | Hiroto Nakagawa, Yasuteru Oono, Tadaatsu Kato, Osamu Nagura, Yosio Furukawa +1 more | 1989-03-14 |
| 4373376 | Method and apparatus for diagnosing overheating of an electric machine | Kiyoshi Narato, Keizo Ohtsuka | 1983-02-15 |
| 4364032 | Method and apparatus for diagnosing local overheating in a rotary electric machine | Kiyoshi Narato, Keizou Ohtsuka | 1982-12-14 |