Mitsuhiko Hirota
12Patents
8h-index
8Co-inventors
61Inventor score
Filing activity: Nov 11, 1977 → May 7, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4641069A | Plural motor changeover control system | Physics | 24 | Expired |
| US4581569A | AC motor control apparatus | Electricity | 15 | Expired |
| US4268782A | Control system for a DC motor | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4928052A | Power supply regenerating circuit | Electricity | 13 | Expired |
| US4207504A | Spindle control system | Physics | 13 | Expired |
| US4268781A | DC Motor drive system | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5270632A | Driving system for an induction motor having a circuit for generating a slip pulse and a phase shifting pulse | Electricity | 10 | Expired |
| US4362976A | Driving circuit for DC motor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4837491A | Motor velocity control apparatus | Electricity | 8 | Expired |
| US4499414A | AC Motor control method | Electricity | 8 | Expired |
| US4588937A | Position control apparatus | Physics | 6 | Expired |
| US4626762A | AC motor control system | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.