Koichi Yahata
16Patents
5h-index
30Co-inventors
62Inventor score
Filing activity: Apr 4, 2003 → Sep 30, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7561429B2 | Power converter unit | Electricity | 52 | Active |
| US7561448B2 | Power inverter | Emerging Cross-Sectional Technologies | 33 | Active |
| US8228700B2 | Power conversion device | Emerging Cross-Sectional Technologies | 17 | Active |
| US7719838B2 | Power inverter | Electricity | 13 | Active |
| US8471507B2 | Electric power conversion system and electric power conversion device | Electricity | 6 | Active |
| US8791681B2 | Electric power conversion system | Emerging Cross-Sectional Technologies | 5 | Active |
| US8040088B2 | Power inverter | Emerging Cross-Sectional Technologies | 3 | Active |
| US7859105B2 | Power converter, power system provided with same, and mobile body | Electricity | 3 | Active |
| US8970155B2 | Power inverter | Emerging Cross-Sectional Technologies | 2 | Active |
| US9964579B2 | Voltage detection apparatus | Physics | 1 | Active |
| US8971079B2 | Inverter device | Electricity | 0 | Active |
| US9065443B2 | Inverter drive device | Electricity | 0 | Active |
| US10840800B2 | Power conversion device | Emerging Cross-Sectional Technologies | 0 | Active |
| US11757444B2 | Semiconductor element drive device and power conversion apparatus | Electricity | 0 | Active |
| US11671089B2 | Load driver | Electricity | 0 | Active |
| US12257910B2 | Power conversion apparatus | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.