Yasuo Notohara
23Patents
12h-index
39Co-inventors
81Inventor score
Filing activity: Jan 18, 1989 → May 26, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6191545A | Control apparatus of brushless motor and machine and apparatus using brushless motor | Electricity | 73 | Expired |
| US5463299A | Current controller for controlling a current flowing in a load using a PWM inverter and method used thereby | Electricity | 47 | Expired |
| US6198240A | Motor controller | Electricity | 42 | Expired |
| US7471525B2 | Converter and power converter that becomes it with the converter | Electricity | 29 | Active |
| US6479956B1 | Brushless motor control device and equipment using the control device | Electricity | 24 | Expired |
| US5359278A | Zero current switching circuit and converting apparatus using the same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6075328A | PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same | Electricity | 23 | Expired |
| US6603280B2 | Motor controller | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6626002B1 | Controller for PWM/PAM motor, air conditioner, and method of motor control | Electricity | 19 | Expired |
| US6337548B2 | Control apparatus of brushless motor and machine and apparatus using brushless motor | Electricity | 17 | Expired |
| US5929591A | Air conditioner | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5050057A | Power source apparatus | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7839663B2 | Converter and power converter that becomes it with the converter | Electricity | 9 | Active |
| US6519959B2 | Air conditioner | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7075266B2 | Apparatus for controlling an a. c. motor | Electricity | 8 | Expired |
| US6397611B1 | Air conditioner and brushless motor control unit | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8305020B2 | Electric power conversion device, compressor motor with the device, and air conditioner with the motor | Electricity | 7 | Active |
| US8531148B2 | Control apparatus and control method for AC electric motor | Electricity | 3 | Active |
| US7944720B2 | Semiconductor integrated circuit, PWM signal output device, and power conversion control apparatus | Electricity | 3 | Active |
| US9748887B2 | Permanent magnet synchronous motor and winding-switching motor driving device, and refrigeration air conditioner and electric vehicle using same | Emerging Cross-Sectional Technologies | 3 | Active |
| US8344671B2 | Speed controller of magnetic motor | Electricity | 2 | Active |
| US10651774B2 | Inverter and motor drive device, freezing device | Electricity | 1 | Active |
| US8847534B2 | Converter, motor driving module, and refrigerating apparatus | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.