Sung Gu Lee
23Patents
3h-index
65Co-inventors
66Inventor score
Filing activity: Jan 12, 1999 → Apr 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6406897B1 | Modified protein, method for preparation thereof and compositions for external application containing the modified protein | Human Necessities | 14 | Expired |
| US8872531B2 | Semiconductor device and test apparatus including the same | Physics | 3 | Active |
| US6251877A | Composition for external application containing a .beta.-1,6-branched-.beta.-1,3-glucan | Emerging Cross-Sectional Technologies | 3 | Expired |
| US10181763B2 | Motor that includes a stator having an improved structure | Electricity | 1 | Active |
| US9531220B2 | Motor and washing machine having the same | Electricity | 1 | Active |
| US9394601B2 | Hard film for cutting tool | Emerging Cross-Sectional Technologies | 1 | Active |
| US8035661B2 | Driving apparatus of display device for gray range extension, display device including the same, and method of driving display device for gray range extension | Physics | 1 | Active |
| US9855608B2 | Hard coating film for cutting tools | Performing Operations; Transporting | 1 | Active |
| US9539227B2 | Pharmaceutical composition for the prevention or treatment of inflammatory diseases or immune diseases containing ramalin | Human Necessities | 0 | Active |
| US8865934B2 | Method for preparing ramalin | Chemistry; Metallurgy | 0 | Active |
| US10523071B2 | Magnetic motor with stator and rotor | Electricity | 0 | Active |
| US10526712B2 | Cutting tool | Chemistry; Metallurgy | 0 | Active |
| US8809578B2 | Compound ramalin and use thereof | Human Necessities | 0 | Active |
| US9752230B2 | Alpha alumina thin film for processing difficult-to-cut material and cast iron | Chemistry; Metallurgy | 0 | Active |
| US10597758B2 | Cemented carbide with improved toughness | Chemistry; Metallurgy | 0 | Active |
| US9273388B2 | Hard film for cutting tool | Emerging Cross-Sectional Technologies | 0 | Active |
| US11054466B2 | Semiconductor device test system and semiconductor device test method | Physics | 0 | Active |
| US9350205B2 | Motor having rotor cores with protrusions to prevent magnetic flux leakage | Emerging Cross-Sectional Technologies | 0 | Active |
| US11141801B2 | Cutting tool having partially-removed film formed thereon | Performing Operations; Transporting | 0 | Active |
| US11376675B2 | Cutting tool having partially-removed film formed thereon | Performing Operations; Transporting | 0 | Active |
| US11123803B2 | Cutting insert for hard-to-cut material | Chemistry; Metallurgy | 0 | Active |
| US9422627B2 | Hard film for cutting tool | Emerging Cross-Sectional Technologies | 0 | Active |
| US9537379B2 | Motor including a rotor and magnetic flux adjustment unit to change an amount of magnetic flux generated by the rotor | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.