Patents by Inventor Dong-hwi Cho
Dong-hwi Cho 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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Patent number: 12183800Abstract: Semiconductor devices include a first active pattern including a first lower pattern extending in a first direction and a first sheet pattern spaced apart from the first lower pattern; and a first gate electrode on the first lower pattern, the first gate electrode extending in a second direction and surrounding the first sheet pattern, wherein the first lower pattern includes a first sidewall and a second sidewall opposite to each other, each of the first sidewall of the first lower pattern and the second sidewall of the first lower pattern extends in the first direction, the first gate electrode overlaps the first sidewall of the first lower pattern in the second direction by a first depth, the first gate electrode overlaps the second sidewall of the first lower pattern in the second direction by a second depth, and the first depth is different from the second depth.Type: GrantFiled: August 15, 2023Date of Patent: December 31, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Myung Gil Kang, Dong Won Kim, Woo Seok Park, Keun Hwi Cho, Sung Gi Hur
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Patent number: 12085328Abstract: A refrigerator is proposed. Due to a first heater provided in a damper assembly, a damper assembly or the connection portion of the damper assembly with a supply duct is prevented from freezing, and due to a second heater provided in the supply duct, the connection portion of the supply duct with the damper assembly or the inside of the supply duct is prevented from freezing.Type: GrantFiled: January 27, 2022Date of Patent: September 10, 2024Assignee: LG ELECTRONICS INC.Inventors: Kihwang Kim, Yong Bum Cho, Dong Hwi Kim, Hyeon Seong Lee, Won Ho Park
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Patent number: 11708266Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.Type: GrantFiled: May 17, 2021Date of Patent: July 25, 2023Assignee: Korea Advanced Institute of Science and TechnologyInventors: Seok-Woo Jeon, Dong-hwi Cho
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Patent number: 11490859Abstract: In a method of manufacturing a biomimetic highly stretchable conductive dry adhesive patch, a mold including a plurality of holes is provided by etching a semiconductor substrate including an insulation layer based on a footing effect. A conductive polymer composite is provided by dispersing mixed conductive fillers in a liquid elastomer. The mixed conductive fillers are formed by mixing one-dimensional conductive fillers and two-dimensional conductive fillers. The conductive polymer composite is applied on the mold such that the conductive polymer composite is injected into the plurality of holes. A conductive dry adhesive structure including a plurality of micropillars corresponding to the plurality of holes is obtained by performing a post-treatment on the conductive polymer composite applied on the mold and by removing the mold. Each of the plurality of micropillars includes a body portion and a tip portion.Type: GrantFiled: February 5, 2018Date of Patent: November 8, 2022Assignee: Korea Advanced Institute of Science and TechnologyInventors: Seok-woo Jeon, Tae-Hoon Kim, Dong-hwi Cho, Junyong Park
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Publication number: 20220009772Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.Type: ApplicationFiled: May 17, 2021Publication date: January 13, 2022Applicant: Korea Advanced Institute of Science and TechnologyInventors: Seok-Woo Jeon, Dong-hwi Cho
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Patent number: 11040873Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.Type: GrantFiled: December 12, 2016Date of Patent: June 22, 2021Assignee: Korea Advanced Institute of Science and TechnologyInventors: Seok-woo Jeon, Dong-hwi Cho
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Publication number: 20200337640Abstract: In a method of manufacturing a biomimetic highly stretchable conductive dry adhesive patch, a mold including a plurality of holes is provided by etching a semiconductor substrate including an insulation layer based on a footing effect. A conductive polymer composite is provided by dispersing mixed conductive fillers in a liquid elastomer. The mixed conductive fillers are formed by mixing one-dimensional conductive fillers and two-dimensional conductive fillers. The conductive polymer composite is applied on the mold such that the conductive polymer composite is injected into the plurality of holes. A conductive dry adhesive structure including a plurality of micropillars corresponding to the plurality of holes is obtained by performing a post-treatment on the conductive polymer composite applied on the mold and by removing the mold. Each of the plurality of micropillars includes a body portion and a tip portion.Type: ApplicationFiled: February 5, 2018Publication date: October 29, 2020Applicant: Korea Advanced Institute of Science and TechnologyInventors: Seok-woo Jeon, Tae-Hoon Kim, Dong-hwi Cho, Junyong Park
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Publication number: 20190202689Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.Type: ApplicationFiled: December 12, 2016Publication date: July 4, 2019Applicant: Korea Advanced Institute of Science and TechnologyInventors: Seok-woo Jeon, Dong-hwi Cho
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Patent number: 8964015Abstract: Provided are a system and method for checking a state of a rotator. The system includes: a position recognition sensor that senses a position of a rotator and generates a position synchronization signal corresponding to the position of the rotator; a control unit that detects a position of a detection specimen existing in the rotator based on the position synchronization signal and generates an image photographing control signal corresponding to the detected position of the detection specimen; and a camera system that photographs an image of the detection specimen existing in the rotator based on the image photographing control signal.Type: GrantFiled: March 25, 2010Date of Patent: February 24, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Su-bong Bae, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Jong-cheol Kim
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Patent number: 8852859Abstract: Provided are a method and/or apparatus for measuring the concentration of a detection target using the transmission or reflection of light. The system includes an illumination unit disposed over a biodisc and configured to apply light to the detection target included in the biodisc and a camera module disposed below the biodisc and configured to measure the amount of light transmitted through the detection target.Type: GrantFiled: March 9, 2010Date of Patent: October 7, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Su-bong Bae, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Jong-cheol Kim
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Patent number: 8723938Abstract: Provided are a method of determining a brightness value of a target area on an optical image, and a computer-readable recording medium including a program for executing the method on a computer. Target brightness values of a plurality of target areas in an optical image are accurately compared with each other by plotting a graph with brightness values depending on positions within a subject.Type: GrantFiled: March 31, 2010Date of Patent: May 13, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Ki-iu Lee, Chung-ung Kim, Jong-lin Park, Dong-hwi Cho, Su-bong Bae, Jong-cheol Kim
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Patent number: 8609038Abstract: Provided are a centrifugal force-based microfluidic device, in which biochemical treatments of samples are executed, and a method of fabricating the centrifugal force-based microfluidic device. The centrifugal force-based microfluidic device is mountable on a rotatable device and includes: a disk-shaped portion; and an inlet hole defined within, configured to receive fluid from outside the centrifugal force-based microfluidic device having a first opening with a first inner diameter, and a second opening disposed on the first opening having a second inner diameter greater than the first inner diameter, and a depth of the second opening greater than a height of a fluid droplet formable in the second opening.Type: GrantFiled: February 18, 2010Date of Patent: December 17, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae, Jong-cheol Kim
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Patent number: 8605937Abstract: Provided are a method and apparatus for adjusting brightness of an illumination device that is used in photographing an analysis object in a bio disk. The method includes taking images of an analysis object in a bio disk; calculating brightness of the images of the analyzing object; and adjusting brightness of an illumination device which is used in the photographing operation of the analysis object in the bio disk based on a difference between the calculated brightness and a target brightness.Type: GrantFiled: March 25, 2010Date of Patent: December 10, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-cheol Kim, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae
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Patent number: 8577078Abstract: Provided are a method and apparatus for adjusting brightness of an illumination device that is used in photographing an analysis object in a bio disk. The method includes taking images of an analysis object in a bio disk; calculating brightness of the images of the analyzing object; and adjusting brightness of an illumination device which is used in the photographing operation of the analysis object in the bio disk based on a difference between the calculated brightness and a target brightness.Type: GrantFiled: March 25, 2010Date of Patent: November 5, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-cheol Kim, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae
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Patent number: 8531594Abstract: Provided is a structure for fixing a camera module on a biodrive. The structure includes a socket fixed on a top surface of a printed circuit board (PCB) of the biodrive. The camera module is combined with the socket. A holder member is disposed over the camera module and covers the camera module. A plurality of fixing units may fix the holder member to fix the camera module on the PCB. The structure can prevent distortion and deviation of the camera module due to external shock.Type: GrantFiled: March 23, 2010Date of Patent: September 10, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae, Jong-cheol Kim
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Patent number: 8490122Abstract: Provided are a disc chucking method of preventing mis-chucking from occurring according to a state and direction of a disc loaded onto a tray when the tray is closed, and a disc driving apparatus for performing the disc chucking method. The method include: opening a tray on which a disc in which a first magnet is installed is loadable; moving a feeding unit to a position where attraction between a second magnet installed in the feeding unit and the first magnet is relatively low; and if the tray is closed, placing a center of the disc in a turn table.Type: GrantFiled: March 9, 2010Date of Patent: July 16, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-cheol Kim, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae
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Patent number: 8456127Abstract: Provided is a method of obtaining an image of a disc, in which the method obtains an image of an analysis or test result object of a disc by minimizing a difference between the positionings of a magnet of the disc and a magnet of a feeding unit, and an apparatus for driving a disc, wherein the apparatus performs the method. The method includes: fixing a positioning of a disc by using magnetic attraction between a first magnet installed on the disc and a second magnet installed on a feeding unit; minimizing a difference between the positionings of the first and second magnets; and obtaining an image of an analysis or test result object of the disc.Type: GrantFiled: February 18, 2010Date of Patent: June 4, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-cheol Kim, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae
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Publication number: 20100253771Abstract: Provided are a system and method for checking a state of a rotator. The system includes: a position recognition sensor that senses a position of a rotator and generates a position synchronization signal corresponding to the position of the rotator; a control unit that detects a position of a detection specimen existing in the rotator based on the position synchronization signal and generates an image photographing control signal corresponding to the detected position of the detection specimen; and a camera system that photographs an image of the detection specimen existing in the rotator based on the image photographing control signal.Type: ApplicationFiled: March 25, 2010Publication date: October 7, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Su-bong BAE, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Jong-cheol Kim
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Publication number: 20100257547Abstract: Provided are a disc chucking method of preventing mis-chucking from occurring according to a state and direction of a disc loaded onto a tray when the tray is closed, and a disc driving apparatus for performing the disc chucking method. The method include: opening a tray on which a disc in which a first magnet is installed is loadable; moving a feeding unit to a position where attraction between a second magnet installed in the feeding unit and the first magnet is relatively low; and if the tray is closed, placing a center of the disc in a turn table.Type: ApplicationFiled: March 9, 2010Publication date: October 7, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-cheol Kim, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae
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Publication number: 20100254238Abstract: Provided is a method of obtaining an image of a disc, in which the method obtains an image of an analysis or test result object of a disc by minimizing a difference between the positionings of a magnet of the disc and a magnet of a feeding unit, and an apparatus for driving a disc, wherein the apparatus performs the method. The method includes: fixing a positioning of a disc by using magnetic attraction between a first magnet installed on the disc and a second magnet installed on a feeding unit; minimizing a difference between the positionings of the first and second magnets; and obtaining an image of an analysis or test result object of the disc.Type: ApplicationFiled: February 18, 2010Publication date: October 7, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-cheol KIM, Chung-ung KIM, Ki-ju LEE, Jong-jin PARK, Dong-hwi CHO, Su-bong BAE