Yiyoung Sun
17Patents
10h-index
10Co-inventors
69Inventor score
Filing activity: Mar 4, 1991 → Dec 28, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5574335A | Ballast containing protection circuit for detecting rectification of arc discharge lamp | Emerging Cross-Sectional Technologies | 76 | Expired |
| US6020691A | Driving circuit for high intensity discharge lamp electronic ballast | Emerging Cross-Sectional Technologies | 38 | Expired |
| US6437515B1 | Discharge lamp lighting device of high startability with high pulse voltage | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6593703B2 | Apparatus and method for driving a high intensity discharge lamp | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5262699A | Starting and operating circuit for arc discharge lamp | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6144172A | Method and driving circuit for HID lamp electronic ballast | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5142202A | Starting and operating circuit for arc discharge lamp | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5138235A | Starting and operating circuit for arc discharge lamp | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6864645B2 | Method and circuit for driving a gas discharge lamp | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6448720B1 | Circuit for driving an HID lamp | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7365951B2 | Discharge lamp lighting device, lighting system and method | Electricity | 4 | Active |
| US7469940B2 | Discharge lamp lighting device, lighting system and method | Electricity | 2 | Active |
| US8664872B2 | Circuit arrangement for operating a discharge lamp | Electricity | 2 | Active |
| US8212496B2 | End-of-life protection circuit and method for high intensity discharge lamp ballast | Emerging Cross-Sectional Technologies | 0 | Active |
| US8638042B1 | System and method for regulating an open circuit voltage of an HID lamp ballast | Emerging Cross-Sectional Technologies | 0 | Active |
| US8084956B2 | Apparatus and method for automatically trimming an output parameter of an electronic ballast | Emerging Cross-Sectional Technologies | 0 | Active |
| US8154211B2 | End-of-life protection circuit and method for high intensity discharge lamp ballast | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.