Ryotaro Kudo
48Patents
10h-index
37Co-inventors
71Inventor score
Filing activity: Feb 14, 2001 → Nov 6, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7138786B2 | Power supply driver circuit | Emerging Cross-Sectional Technologies | 214 | Expired |
| US7385380B2 | Switching power supply | Electricity | 205 | Active |
| US7158392B2 | Switching power supply device and the semiconductor integrated circuit for power supply control | Emerging Cross-Sectional Technologies | 24 | Expired |
| US7514908B2 | Switching power supply device and a semiconductor integrated circuit | Emerging Cross-Sectional Technologies | 23 | Expired |
| US7245116B2 | Power supply device and switching power supply device | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7166992B2 | Electronic component for power supply and a power supply device | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7408388B2 | Switching power supply device, semiconductor integrated circuit device and power supply device | Electricity | 13 | Active |
| US7969129B2 | Semiconductor circuit and switching power supply apparatus | Electricity | 13 | Active |
| US7307406B2 | Switching power supply device and a semiconductor integrated circuit | Emerging Cross-Sectional Technologies | 13 | Active |
| US7777462B2 | Power supply unit | Emerging Cross-Sectional Technologies | 10 | Active |
| US8680830B2 | Power supply device | Electricity | 9 | Active |
| US7737672B2 | Semiconductor circuit and switching power supply apparatus | Electricity | 9 | Active |
| US7659144B2 | Semiconductor device and manufacturing the same | Electricity | 9 | Active |
| US7898233B2 | Multiphase voltage regulators and methods for voltage regulation | Electricity | 8 | Active |
| US8633550B2 | Semiconductor device | Emerging Cross-Sectional Technologies | 7 | Active |
| US6559718B2 | Semiconductor integrated circuit device | Electricity | 6 | Expired |
| US8063620B2 | Switching power supply device and semiconductor integrated circuit | Emerging Cross-Sectional Technologies | 6 | Active |
| US9973017B2 | Charger circuit including a plurality of charging paths | Electricity | 6 | Active |
| US7342391B2 | Power supply device and switching power supply device | Emerging Cross-Sectional Technologies | 5 | Active |
| US9570985B2 | Intelligent gate drive voltage generator | Emerging Cross-Sectional Technologies | 4 | Active |
| US7548050B2 | Switching power supply device and semiconductor integrated circuit | Emerging Cross-Sectional Technologies | 4 | Active |
| US7859326B2 | Switching power supply device, semiconductor intergrated circuit device and power supply device | Electricity | 3 | Active |
| US8314606B2 | Current sensing and measuring method and apparatus | Physics | 3 | Active |
| US9705401B2 | Buck-boost converters and power management integrated circuits including the same | Electricity | 3 | Active |
| US8519687B2 | Semiconductor device and power source device with a current detection circuit | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.