Koji Sonobe
14Patents
4h-index
3Co-inventors
49Inventor score
Filing activity: Mar 24, 2007 → Jul 27, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8243473B2 | Switching power supply device and switching power supply control circuit | Emerging Cross-Sectional Technologies | 7 | Active |
| US7948780B2 | Semiconductor device for switching power supply control, startup circuit, and startup method for switching power supply device | Electricity | 6 | Active |
| US7859860B2 | Switching power source device, switching power source control circuit, and switching power source device control method | Emerging Cross-Sectional Technologies | 5 | Active |
| US7982248B2 | Junction field effect transistor, integrated circuit for switching power supply, and switching power supply | Electricity | 4 | Active |
| US8098501B2 | Switching power supply control circuit | Emerging Cross-Sectional Technologies | 3 | Active |
| US9627977B2 | Quasi-resonant switching power supply | Emerging Cross-Sectional Technologies | 2 | Active |
| US8283705B2 | Junction field effect transistor, integrated circuit for switching power supply, and switching power supply | Electricity | 2 | Active |
| US8411469B2 | Switching power source device and switching power source control circuit | Emerging Cross-Sectional Technologies | 2 | Active |
| US8879281B2 | Switching power source device | Electricity | 1 | Active |
| US11005373B2 | Switching power supply control circuit with bottom point detection | Emerging Cross-Sectional Technologies | 0 | Active |
| US9461115B2 | Junction field effect transistor, integrated circuit for switching power supply, and switching power supply | Electricity | 0 | Active |
| US10512137B2 | LED drive circuit | Electricity | 0 | Active |
| US11411498B2 | Controller of switching power supply apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US10277134B2 | Switching power supply device | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.