Inventor
Chang Auck Choi
Inventor
Daejeon, KR
Overview
Patents· 41 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus13%
B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems11%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light11%
B81BMicrostructural devices or systems, e.g. micromechanical devices10%
H10DInorganic electric semiconductor devices5%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves4%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock4%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation4%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%
PatentTitleYear
10,113,928Pressure sensor and a method for manufacturing the same20188,638,110'High resolution circuit for converting capacitance-to-time deviation'20148,613,287'Apparatus for preventing stiction of MEMS microstructure'2013RE044356'Tunable-wavelength optical filter and method of manufacturing the same'20138,359,758'Circuit for calculating a three-dimensional inclination angle'20138,261,617'Micro piezoresistive pressure sensor and manufacturing method thereof'20128,263,426'High-sensitivity z-axis vibration sensor and method of fabricating the same'20128,143,579'Resistive material for bolometer, bolometer for infrared detector using the material, and method of manufacturing the bolometer'20128,113,054'Capacitive accelerometer'20128,047,074'Humidity sensor and method of manufacturing the same'20118,035,176'MEMS package and packaging method thereof'20117,997,137'Bidirectional readout circuit for detecting direction and amplitude of capacitive MEMS accelerometers'20117,975,550'Micromachined sensor for measuring vibration'20117,971,633'Loop type micro heat transport device'20117,948,564'Programmable mask and method of fabricating biomolecule array using the same'20117,928,388'Infrared detection sensor and method of fabricating the same'20117,884,328'Microbolometer with improved mechanical stability and method of manufacturing the same'20117,745,308'Method of fabricating micro-vertical structure'20107,696,478'Resistive materials for microbolometer, method for preparation of resistive materials and microbolometer containing the resistive materials'20107,667,202'Multilayer-structured bolometer and method of fabricating the same'20107,403,236'Programmable mask and method of fabricating biomolecule array using the same'20087,398,015'Apparatus for controlling fluid-heating using polymer disk'20087,393,793'Tunable-wavelength optical filter and method of manufacturing the same'20087,209,608'Wavelength tunable optical filter'20077,171,177'Communication apparatus and method using human body as medium'20077,167,612'Wavelength tunable filter capable of being bidirectionally driven by electromagnetic forces'20077,163,872'Tunable-wavelength optical filter and method of manufacturing the same'20077,116,863'Thermally actuated wavelength tunable optical filter'20067,012,752'Tunable-wavelength optical filter and method of manufacturing the same'20066,947,656'Variable optical attenuator with tunable wavelength selectivity'20056,922,270'Multi-step landing micro-mirror, method for manufacturing the same and multi-step landing micro-mirror array'20056,896,780'Microelectrode, microelectrode array and method for manufacturing the microelectrode'20056,822,776'Scanning micromirror for optical communication systems and method of manufacturing the same'20046,806,205'Stiction-free microstructure releasing method for fabricating MEMS device'20046,798,940'Optical tunable filters and optical communication device incorporated therein optical tunable filters'20046,582,987'Method of fabricating microchannel array structure embedded in silicon substrate'20036,531,417'Thermally driven micro-pump buried in a silicon substrate and method for fabricating the same'20036,342,427'Method for forming micro cavity'20026,292,084'Fine inductor having 3-dimensional coil structure and method for producing the same'20016,225,145'Method of fabricating vacuum micro-structure'20016,084,656'Programmable mask for exposure apparatus'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2014Patents assigned to KOREA ELECTRONICS TELECOMM (38)· patent assignee history
2000–2008Based in Kumi-shi, KR· patent location history
2001–2018Based in Daejeon, KR· patent location history
2001–2004Based in Taejon, KR· patent location history
2012–2014Patents assigned to CHOI CHANG AUCK (7)· patent assignee history
2012–2014Patents assigned to HWANG GUNN (5)· patent assignee history
2012–2014Patents assigned to LEE MYUNG LAE (5)· patent assignee history
2012–2013Patents assigned to JE CHANG HAN (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOREA ELECTRONICS TELECOMM | 38 | 2000–2014 |
| CHOI CHANG AUCKself | 7 | 2012–2014 |
| HWANG GUNN | 5 | 2012–2014 |
| LEE MYUNG LAE | 5 | 2012–2014 |
| JE CHANG HAN | 3 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Daejeon, KR | 30 | 2001–2018 |
| Kumi-shi, KR | 6 | 2000–2008 |
| Taejon, KR | 5 | 2001–2004 |