Inventor · Daejeon, KR

Chang Han Je

27Patents
5h-index
30Co-inventors
65Inventor score

Filing activity: Mar 23, 2005 → Dec 9, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US8544326B2 Vertical accelerometer Physics 57 Active
US8035176B2 MEMS package and packaging method thereof Electricity 16 Active
US8901683B2 Micro electro mechanical system (MEMS) microphone and fabrication method thereof Performing Operations; Transporting 6 Active
US7997137B2 Bidirectional readout circuit for detecting direction and amplitude of capacitive MEMS accelerometers Physics 5 Active
US8319397B2 Piezoelectric power generator Electricity 5 Active
US8113054B2 Capacitive accelerometer Physics 4 Active
US8705777B2 MEMS microphone and method of manufacturing the same Electricity 3 Active
US7546677B2 Method for fabricating a micro-electromechanical system switch Emerging Cross-Sectional Technologies 3 Active
US8261617B2 Micro piezoresistive pressure sensor and manufacturing method thereof Emerging Cross-Sectional Technologies 3 Active
US8415717B2 Acoustic sensor Emerging Cross-Sectional Technologies 2 Active
US7585113B2 Micro-electro mechanical systems switch and method of fabricating the same Performing Operations; Transporting 2 Expired
US9264814B2 Microphone Electricity 2 Active
US7745308B2 Method of fabricating micro-vertical structure Performing Operations; Transporting 2 Active
US7283025B2 Micro-electromechanical systems switch and method of fabricating the same Emerging Cross-Sectional Technologies 2 Expired
US8613287B2 Apparatus for preventing stiction of MEMS microstructure Performing Operations; Transporting 1 Active
US8603848B2 Three-dimensional MEMS structure and method of manufacturing the same Performing Operations; Transporting 1 Active
US10819326B1 Digital clock generation apparatus and method Electricity 1 Active
US7975550B2 Micromachined sensor for measuring vibration Physics 1 Active
US8359758B2 Circuit for calculating a three-dimensional inclination angle Physics 0 Active
US11486810B2 Fluorescence sensor for measuring microalgae and method of operating the same Physics 0 Active
US12123758B2 Flow sensor performing multi level down sampling and method thereof Physics 0 Active
US9210515B2 Acoustic sensor Electricity 0 Active
US9066184B2 Acoustic sensor and fabrication method thereof Emerging Cross-Sectional Technologies 0 Active
US10644668B2 Resonator-based sensor and sensing method thereof Electricity 0 Active
US8722446B2 Acoustic sensor and method of manufacturing the same Emerging Cross-Sectional Technologies 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.