Patents by Inventor Kwang Hyo Chung
Kwang Hyo Chung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140178598Abstract: Disclosed are methods for forming a graphene pattern. The method includes forming a fine pattern defined by at least one trench on a substrate, applying a graphene solution on the fine pattern, and selectively forming a graphene layer on the fine pattern contacting the graphene solution.Type: ApplicationFiled: June 12, 2013Publication date: June 26, 2014Inventors: Kwang Hyo CHUNG, Jin Tae KIM, Young-Jun YU, Jin Sik CHOI, Doo Hyeb YOUN, Ki-Chul KIM, Choon Gi CHOI
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Patent number: 8735103Abstract: Provided is a natural convection-driven polymerase chain reaction (PCR) apparatus and method, which can periodically change temperature of a sample to make a natural convection-driven flow in a loop-shaped channel on a disposable polymer chip and contacting heating metal members maintained at different temperatures with channels. The natural convection-driven PCR apparatus includes: a polymer chip having a plurality of channels connected together to form a loop-shaped microchannel, a sample being filled inside the channels; a plurality of heating metal members contacting the loop-shaped microchannel of the polymer chip and transferring heat; a temperature controller connected to the heating metal members to maintain the heating metal members at different temperatures; a plurality of heaters connected to the heating metal members and the temperature controller to supply heat to the heating metal members; and temperature sensors connected to the heating metal members and the temperature controller.Type: GrantFiled: October 3, 2007Date of Patent: May 27, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Kwang-Hyo Chung, Dae-Sik Lee, Hyeon-Bong Pyo, Seon-Hee Park
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Patent number: 8728312Abstract: Disclosed are a method and an apparatus for filtering plasma using magnetic force. The apparatus for filtering plasma using magnetic force includes: an inlet into which blood is injected; a filter unit filtering plasma in the blood passing through the inlet by capillary force; a magnetic force receiving part made of magnetizable materials and assisting plasma filtering by applying pressure to the filter unit by movement due to magnetic force generated from the outside; an outlet discharging plasma filtered from blood; and a filter outer body surrounding the inlet, the filter unit, the magnetic receiving part, and the outlet.Type: GrantFiled: October 31, 2011Date of Patent: May 20, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo Chung, Yo Han Choi, Chang-Geun Ahn, Gun Yong Sung
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Patent number: 8585013Abstract: There is provided a magnetic microvalve using a metal ball and a method of manufacturing the same. A magnetic microvalve using a metal ball according to an aspect of the invention may include: an upper substrate having a microchannel serving as a passage through which a fluid moves, a fluid inlet through which the fluid flows into the microchannel, and a fluid outlet through which the fluid, having passed through the microchannel, flows out of the microchannel; a lower substrate having a trench locally provided therein; a PDMS/metal ball combination having a metal ball and PDMS surrounding the metal ball so that the metal ball is located in a central portion thereof, the PDMS/metal ball combination being inserted into the trench provided in the lower substrate; and a magnet located above the microchannel, provided in the upper substrate, and generating magnetic force.Type: GrantFiled: August 31, 2010Date of Patent: November 19, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo Chung, Yo Han Choi, Dae Sik Lee, Young Jun Kim, Moon Youn Jung, Seon Hee Park
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Publication number: 20130149216Abstract: Provided are a device for storing a reagent capable of being adhered to a biochip and supplying the stored reagent to the biochip, and a method of discharging a reagent thereof. The device for storing a reagent includes an elastic film pressurizing part configured to pressurize an elastic film by magnetic force, and a reagent discharging part configured to store the reagent and discharge the reagent through an outlet by using the deformation in the elastic film due to the pressurization. According to the present invention, a magnetic force controlling device can be small-sized and the reagent can be automatically, high-precisely, and reproducibly supplied through the magnetic force control.Type: ApplicationFiled: June 20, 2012Publication date: June 13, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo CHUNG, Yo Han Choi, Jong Heon Yang, Chan Woo Park, Chil Seong Ah, Wan Joong Kim, Gun Yong Sung
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Publication number: 20130137082Abstract: Provided are a biosensor, an apparatus and a method for detecting a biomolecule using the biosensor. The biosensor may include a supporting substrate, a semiconductor layer spaced apart from a top surface of the supporting substrate by supporting patterns, and a nano-motor array formed on a top surface of the semiconductor layer. The nano-motor array may include a plurality of nano-metal rods configured to exhibit an autonomous propulsion in a fluid.Type: ApplicationFiled: July 10, 2012Publication date: May 30, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Chan Woo PARK, Jong-Heon YANG, Chil Seong AH, Wan Joong KIM, Kwang Hyo CHUNG, Yo Han CHOI, Gun Yong SUNG
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Publication number: 20130137182Abstract: Provided is a blood pre-treating apparatus including an injecting part for injecting a blood sample, an albumin-removing part including albumin adsorption beads for removing albumins from the blood sample, and an agglutination part including an agglutination reactant, by which blood corpuscles in the blood sample may be agglutinated to form a hemagglutination reactant.Type: ApplicationFiled: July 9, 2012Publication date: May 30, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Yo Han CHOI, Chan Woo Park, Wan Joong Kim, Chil Seong Ah, Kwang Hyo Chung, Jong-Heon Yang, Gun Yong Sung
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Patent number: 8309040Abstract: Provided is a microfluidic control apparatus that includes at least one control means and a microfluidic control chip. When the microfluidic control chip is loaded to the control means, a needle provided to the control means is inserted into a reaction solution storage chamber of the microfluidic control chip, in which the reaction solution storage chamber is sealed with a sealing tape. Thus, fluid connection is easily formed between the microfluidic control chip and the control means without leakage.Type: GrantFiled: August 17, 2009Date of Patent: November 13, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo Chung, Dae-Sik Lee, Hyun Woo Song, Yo Han Choi
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Publication number: 20120164747Abstract: The present invention relates to a plasma extraction method in which a complex of a blood cell-specific antibody and a protein having the ability to bind to the Fc region of the antibody is used to induce the agglutination of blood cells in blood, thereby increasing plasma separation efficiency, and to a plasma separation device therefor. According to the method, plasma can be separated from whole blood in high efficiency, and rapid plasma separation is possible, so that rapid diagnosis can be performed even with a small amount of blood.Type: ApplicationFiled: December 9, 2011Publication date: June 28, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: YO HAN CHOI, KWANG HYO CHUNG, GUN YONG SUNG
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Publication number: 20120138534Abstract: Disclosed are a method and an apparatus for filtering plasma using magnetic force. The apparatus for filtering plasma using magnetic force includes: an inlet into which blood is injected; a filter unit filtering plasma in the blood passing through the inlet by capillary force; a magnetic force receiving part made of magnetizable materials and assisting plasma filtering by applying pressure to the filter unit by movement due to magnetic force generated from the outside; an outlet discharging plasma filtered from blood; and a filter outer body surrounding the inlet, the filter unit, the magnetic receiving part, and the outlet.Type: ApplicationFiled: October 31, 2011Publication date: June 7, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo CHUNG, Yo Han CHOI, Chang-Geun AHN, Gun Yong SUNG
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Publication number: 20120143513Abstract: Provided are a bio sensor chip and a reader thereof. The bio-sensor chip is optically addressed. The bio-sensor chip includes a word line control circuit and a bit line control circuit controlled by light provided from the bio-sensor chip reader. The bio-sensor chip does not require a peripheral circuit for driving word lines and bit lines, simplifying a fabrication process and reducing the area of the chip.Type: ApplicationFiled: August 26, 2011Publication date: June 7, 2012Applicant: Electronics and Telecommunications ResearchInventors: Jong-Heon YANG, Chang-Geun Ahn, Chan Woo Park, Chil Seong Ah, Wan Joong Kim, Kwang Hyo Chung, Yo Han Choi, Gun Yong Sung
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Patent number: 8057672Abstract: Provided is a disposable multi-layered filtration device for the separation of blood plasma which can be applied to a biochip and appropriate for disposal uses. The filtration device for the separation of blood plasma includes: an upper substrate including a blood inlet; an intermediate substrate including a filtering unit for extracting blood plasma from blood flowing through the blood inlet; and a lower substrate including an air outlet, wherein the upper substrate, the intermediate substrate, and the lower substrate are stacked and adhered.Type: GrantFiled: June 4, 2008Date of Patent: November 15, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo Chung, Yo Han Choi, Dae Sik Lee, Ju Hyun Jeon, Moon Youn Jung, Seon Hee Park
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Publication number: 20110236277Abstract: Provided are a plastic microfluid control device having a multi-step microchannel and a method of manufacturing the same. The device includes a lower substrate, and a fluid channel substrate contacting the lower substrate and having a multi-step microchannel having at least two depths in a side coupling to the lower substrate. Thus, the device can precisely control the fluid flow by controlling capillary force in a depth direction of the channel by controlling the fluid using the multi-step microchannel having various channel depths. A multi-step micropattern is formed by repeating photolithography and transferred, thereby easily forming the multi-step microchannel having an even surface and a precisely controlled height.Type: ApplicationFiled: March 17, 2011Publication date: September 29, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Dae Sik LEE, Hyun Woo Song, Kwang Hyo Chung, Seon Hee Park, Moon Youn Jung, Seung Hwan Kim
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Publication number: 20110049401Abstract: There is provided a magnetic microvalve using a metal ball and a method of manufacturing the same. A magnetic microvalve using a metal ball according to an aspect of the invention may include: an upper substrate having a microchannel serving as a passage through which a fluid moves, a fluid inlet through which the fluid flows into the microchannel, and a fluid outlet through which the fluid, having passed through the microchannel, flows out of the microchannel; a lower substrate having a trench locally provided therein; a PDMS/metal ball combination having a metal ball and PDMS surrounding the metal ball so that the metal ball is located in a central portion thereof, the PDMS/metal ball combination being inserted into the trench provided in the lower substrate; and a magnet located above the microchannel, provided in the upper substrate, and generating magnetic force.Type: ApplicationFiled: August 31, 2010Publication date: March 3, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo CHUNG, Yo Han Choi, Dae Sik Lee, Young Jun Kim, Moon Youn Jung, Seon Hee Park
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Publication number: 20100279396Abstract: There is provided a cell culture technology for culturing an animal cell in a separate microstructure. The micro-scaled animal cell incubator includes a lower glass substrate having fine hot wires processed with a metal and formed in an upper surface thereof; a first PDMS film attached onto the lower glass substrate to form two or more liquid and solid storage spaces in a position corresponding to the fine hot wires of the lower glass substrate and gas flow channels coupled respectively to the liquid and solid storage spaces to allow generated gases to flow therethrough; a gas-permeable PDMS thin film attached onto the gas flow channels of the PDMS film to pass the generated gases therethrough; a second PDMS film attached onto the PDMS thin film and having a culture medium storage space for storing a culture medium; and an upper glass substrate attached onto the second PDMS film and having fine hot wires formed in a lower surface thereof, the fine hot wires being covered by the PDMS film.Type: ApplicationFiled: June 27, 2008Publication date: November 4, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Yo Han Choi, Kwang Hyo Chung, Dae Sik Lee, Sang Hee Kim, Min Suk Jeong, Chi Hoon Jun, Moon Youn Jung, Seon Hee Park
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Publication number: 20100267127Abstract: Provided is a polymerase chain reaction (PCR) apparatus. A PCR is performed using the module assembly-type PCR apparatus. The module assembly-type PCR apparatus includes a first module, a second module, and a third module. A sample is provided to the first module. The second module provides different temperature ranges to the first module to generate thermal convection. The third module controls an operation of the second module. The first module is separably coupled to the second module. The second module is electrically separably coupled to the third module.Type: ApplicationFiled: June 15, 2009Publication date: October 21, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo CHUNG, Yo Han CHOI, JuHyun JEON, Moon Youn JUNG
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Publication number: 20100159573Abstract: Provided is a microfluidic dilution device that uses capillary force to dilute first and second fluids in a predetermined ratio. The microfluidic dilution device includes a channel plate, a cover plate, fluid chambers, and a confluence chamber. The fluid chambers are filled with first and second fluids in a predetermined ratio. First and second fluids flowing to the confluence chamber are diluted in a predetermined ratio.Type: ApplicationFiled: July 31, 2009Publication date: June 24, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Kwang Hyo CHUNG, JuHyun Jeon, Dae-Sik Lee, Moon Youn Jung, Seon Hee Park
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Publication number: 20100159576Abstract: Provided are a biochip and a biomaterial detection apparatus. The biochip includes a substrate, a metal layer, and a dielectric layer. The substrate includes a surface having a plurality of acute parts which are formed by first and second inclined planes. The metal layer is formed on at least one of the first and second inclined planes. The dielectric layer is formed on the metal layer, and capture molecules specifically binding to target molecules which are marked with a fluorescent substance are immobilized to a surface of the dielectric layer.Type: ApplicationFiled: December 21, 2009Publication date: June 24, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Hyun Woo SONG, Dae-Sik Lee, Hyeon-Bong Pyo, Kwang Hyo Chung, Moon Youn Jung
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Publication number: 20100158761Abstract: Provided is a microfluidic control apparatus that includes at least one control means and a microfluidic control chip. When the microfluidic control chip is loaded to the control means, a needle provided to the control means is inserted into a reaction solution storage chamber of the microfluidic control chip, in which the reaction solution storage chamber is sealed with a sealing tape. Thus, fluid connection is easily formed between the microfluidic control chip and the control means without leakage.Type: ApplicationFiled: August 17, 2009Publication date: June 24, 2010Applicant: Electronics and Telecommunications ResearchInventors: Kwang Hyo Chung, Dae-Sik Lee, Hyun Woo Song, Yo Han Choi
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Publication number: 20100143194Abstract: Provided is a microfluidic device. The microfluidic device includes a sample storage chamber storing sample fluid therein, a detection chamber connected to the sample storage chamber and detecting a specific material of the sample fluid, a cleaning liquid storage chamber connected to the detection chamber and storing cleaning liquid therein, a plurality of fluid passages interconnecting the chambers, and a micropump transferring the cleaning liquid. The microfluidic device precisely inspects a sample fluid although a small amount of the sample fluid flows.Type: ApplicationFiled: June 26, 2009Publication date: June 10, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Dae-Sik Lee, Yo Han Choi, Kwang Hyo Chung, JuHyun Jeon, Hyun Woo Song, Moon Youn Jung, Seon Hee Park