Reiji Kawashima
25Patents
4h-index
27Co-inventors
63Inventor score
Filing activity: Apr 12, 1999 → Apr 18, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6137700A | Converter with a high power factor using a DC center point voltage | Emerging Cross-Sectional Technologies | 30 | Expired |
| US8098035B2 | Motor control unit | Electricity | 18 | Active |
| US7187566B2 | Three-phase rectifier | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7667941B2 | Power supply circuit protecting method and apparatus for the same | Electricity | 4 | Active |
| US9178412B2 | Bidirectional switch circuit configured to conduct current in reverse direction without applying an on-drive signal and power converter including the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US10511220B2 | Control device for active filter | Emerging Cross-Sectional Technologies | 3 | Active |
| US10651651B2 | Device with built-in active filter | Emerging Cross-Sectional Technologies | 2 | Active |
| US9835364B2 | Active filter control device | Emerging Cross-Sectional Technologies | 1 | Active |
| US11577186B2 | Active filter system and air conditioning device | Emerging Cross-Sectional Technologies | 1 | Active |
| US8008886B2 | Power converter | Electricity | 1 | Active |
| US10903755B2 | Power conversion device | Emerging Cross-Sectional Technologies | 1 | Active |
| US10048655B2 | Control device outputting a control input to a system based on an observable amount obtained from the system | Emerging Cross-Sectional Technologies | 1 | Active |
| US8030661B2 | Power conversion apparatus | Electricity | 1 | Active |
| US10447191B2 | Power conversion device | Emerging Cross-Sectional Technologies | 1 | Active |
| US12155212B2 | Power control system and device | Emerging Cross-Sectional Technologies | 0 | Active |
| US10110113B2 | Active filter and AC-DC conversion device | Emerging Cross-Sectional Technologies | 0 | Active |
| US12095434B2 | Current distortion reduction apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US11788752B2 | Power source quality management system and air conditioning apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US12224678B2 | Power converter and heat pump system provided therewith | Electricity | 0 | Active |
| US11750112B2 | Inverter device including a bootstrap circuit | Electricity | 0 | Active |
| US12249906B2 | Air conditioner | Electricity | 0 | Active |
| US11201470B2 | Power-source power factor control system, phase modifying apparatus, and active filter apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US11374487B2 | Power source quality management system and air conditioner | Emerging Cross-Sectional Technologies | 0 | Active |
| US12355379B2 | Power conversion system | Electricity | 0 | Active |
| US10797584B2 | Active filter device, air conditioning device, and air conditioning system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.