Joon Hwan Lee
24Patents
3h-index
50Co-inventors
66Inventor score
Filing activity: Jul 24, 1989 → Jan 28, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US10547731B2 | Method for managing and controlling external IoT device and electronic device supporting the same | Electricity | 7 | Active |
| US5181117A | Automatic contrast controller of a video camera | Electricity | 5 | Expired |
| US7745040B2 | Safety device for preventing overcharge of secondary batteries and secondary batteries therewith | Emerging Cross-Sectional Technologies | 3 | Active |
| US7629073B2 | Safety element for battery and battery with the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US7053966B2 | Adjusting convergence apparatus and method | Electricity | 3 | Expired |
| US6853157B2 | Image distortion compensating apparatus with low switching delay | Electricity | 2 | Expired |
| US7785734B2 | Secondary battery having an improved safety | Emerging Cross-Sectional Technologies | 2 | Active |
| US7737661B2 | Secondary battery having constant-voltage device | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9316380B2 | Optical plate for lighting, and lighting apparatus using same | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9350242B2 | Power supply and DC-DC converter with voltage drop circuit therein | Emerging Cross-Sectional Technologies | 1 | Active |
| US7589501B2 | Apparatus and method for protecting secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US8048551B2 | Battery safety device and battery having the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7129655B2 | Image distortion correction apparatus capable of correcting misconvergence using an amplifier | Electricity | 0 | Expired |
| US11053275B2 | Method for bile acid derivative by using continuous flow reaction | Chemistry; Metallurgy | 0 | Active |
| US8541620B2 | Method for selectively crystallizing a Z isomer of iopromide | Chemistry; Metallurgy | 0 | Active |
| US7158193B2 | Image misconvergence correction apparatus for less switching noise influence | Electricity | 0 | Expired |
| USRE50074E1 | Method for managing and controlling external IoT device and electronic device supporting the same | General | 0 | Active |
| US9695820B2 | Compressor and control method thereof | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9945599B2 | Air conditioner and control method thereof | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8673469B2 | Apparatus for protection of secondary battery | Emerging Cross-Sectional Technologies | 0 | Active |
| US6432587B1 | Electrolyte for a lithium secondary battery | Emerging Cross-Sectional Technologies | 0 | Expired |
| US9614254B2 | Safety device for preventing overcharge and secondary battery therewith | Emerging Cross-Sectional Technologies | 0 | Active |
| US8574733B2 | Protection circuit for secondary battery and secondary battery comprising the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US9040572B2 | Method of preparing benzoimidazole derivatives | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.