Keiichiro Numakura
14Patents
1h-index
14Co-inventors
51Inventor score
Filing activity: Oct 10, 2002 → Apr 17, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6885225B2 | Drive circuit | Electricity | 34 | Expired |
| US11557647B2 | Semiconductor device and manufacturing method thereof | Electricity | 1 | Active |
| US12328884B2 | Semiconductor device, power module and manufacturing method for the semiconductor device | Electricity | 0 | Active |
| US11996442B2 | Semiconductor device and method of manufacturing semiconductor device | Electricity | 0 | Active |
| US11881526B2 | Semiconductor device and method for manufacturing same | Electricity | 0 | Active |
| US11476326B2 | Semiconductor device and method of manufacturing semiconductor device | Electricity | 0 | Active |
| US10230294B2 | Power conversion device with gate drive circuit | Electricity | 0 | Active |
| US11251300B2 | Semiconductor device and method of manufacturing semiconductor device | Electricity | 0 | Active |
| US11557674B2 | Semiconductor device and method for manufacturing the same | Electricity | 0 | Active |
| US11664466B2 | Semiconductor device, power module and method for manufacturing the semiconductor device | Electricity | 0 | Active |
| US11973108B2 | Semiconductor device and manufacturing method thereof | Electricity | 0 | Active |
| US11756994B2 | Semiconductor device and method of manufacturing semiconductor device | Electricity | 0 | Active |
| US11916469B2 | Resonant power conversion device | Emerging Cross-Sectional Technologies | 0 | Active |
| US12068411B2 | Semiconductor device and method for manufacturing same | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.