Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856965 | Control system of pumping operation using AC exciting generator-motor | Michiyuki Abe, Katsuyuki Kawahara, Taizo Nakamura | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856965 | Control system of pumping operation using AC exciting generator-motor | Michiyuki Abe, Katsuyuki Kawahara, Taizo Nakamura | 1989-08-15 |