Sung-chul Lee
130Patents
9h-index
163Co-inventors
83Inventor score
Filing activity: Apr 20, 1990 → Nov 2, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5773343A | Semiconductor device having a recessed channel structure and method for fabricating the same | Electricity | 72 | Expired |
| US6037221A | Device and fabricating method of non-volatile memory | Electricity | 17 | Expired |
| US5492319A | Indoor golf chip shot practice apparatus | Human Necessities | 16 | Expired |
| US7985506B2 | Fuel cell system and reformer | Emerging Cross-Sectional Technologies | 13 | Active |
| US7599228B1 | Flash memory device having increased over-erase correction efficiency and robustness against device variations | Physics | 12 | Expired |
| US9508925B2 | Magnetic memory device | Physics | 11 | Active |
| US6207506A | Nonvolatile memory and method for fabricating the same | Electricity | 11 | Expired |
| US8164852B2 | Magnetic head having shield and recording apparatus employing the same | Physics | 11 | Active |
| US6479346B1 | Semiconductor memory device and fabrication method thereof | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7924593B2 | Information storage devices and methods of operating the same | Physics | 9 | Active |
| US7142455B1 | Positive gate stress during erase to improve retention in multi-level, non-volatile flash memory | Physics | 9 | Expired |
| US9236105B2 | Magnetic memory devices and methods of writing data to the same | Physics | 8 | Active |
| US8598957B2 | Oscillators and methods of manufacturing and operating the same | Electricity | 7 | Active |
| US8525126B2 | UV fluid sterilizer suitable to sterilize fluid having poor UV transmission | Chemistry; Metallurgy | 7 | Active |
| US5674767A | Method of manufacturing a semiconductor device having a self-aligned structure for a split gate flash memory device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7463525B2 | Negative wordline bias for reduction of leakage current during flash memory operation | Physics | 6 | Active |
| US8427246B2 | Oscillators and methods of manufacturing and operating the same | Electricity | 6 | Active |
| US8729647B2 | Thermally stable magnetic tunnel junction cell and memory device including the same | Electricity | 6 | Active |
| US7710757B2 | Magnetic track using magnetic domain wall movement and information storage device including the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US7709117B2 | Fuel cell system and apparatus for supplying mixed fuel and water to the same | Emerging Cross-Sectional Technologies | 5 | Active |
| US7817461B2 | Data storage device using magnetic domain wall movement and method of operating the same | Physics | 5 | Active |
| US7679967B2 | Controlling AC disturbance while programming | Physics | 5 | Active |
| US8421545B2 | Oscillators and methods of operating the same | Electricity | 5 | Active |
| US8320152B2 | Information storage devices using magnetic domain wall movement and methods of operating the same | Physics | 5 | Active |
| US7838159B2 | Reformer for fuel cell, and fuel cell system including same | Emerging Cross-Sectional Technologies | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.