Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812730 | Variable-speed generator/motor system | Hiroto Nakagawa, Yasuteru Oono, Osamu Nagura, Sadahiko Niwa, Yosio Furukawa +1 more | 1989-03-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812730 | Variable-speed generator/motor system | Hiroto Nakagawa, Yasuteru Oono, Osamu Nagura, Sadahiko Niwa, Yosio Furukawa +1 more | 1989-03-14 |