Tunehiro Endo
11Patents
9h-index
45Co-inventors
72Inventor score
Filing activity: Oct 13, 1977 → Feb 15, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4879502A | Speed control apparatus and method for motors | Electricity | 58 | Expired |
| US5463299A | Current controller for controlling a current flowing in a load using a PWM inverter and method used thereby | Electricity | 47 | Expired |
| US4726738A | Motor-driven compressor provided with torque control device | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US4958406A | Method and apparatus for operating vacuum cleaner | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4980617A | Speed control apparatus of movable equipment | Electricity | 26 | Expired |
| US5184057A | Control method and device for AC motor | Electricity | 25 | Expired |
| US6828752B2 | Driving equipment and semiconductor equipment for alternating-current motor | Electricity | 24 | Expired |
| US5381584A | Vacuum cleaner | Human Necessities | 13 | Expired |
| USRE34286E | Method and apparatus for operating vacuum cleaner | General | 9 | Expired |
| US7224133B2 | Control apparatus, dual chip inverter and single chip inverter of AC motors | Electricity | 7 | Expired |
| US4166235A | Magnetron comprising ferromagnetic material members axially magnetized in opposite directions | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.