Patents by Inventor Seung-Hwan Ko
Seung-Hwan Ko 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: 11839157Abstract: Disclosed is a stretchable and flexible thermoelectric module including: a thermoelectric material; a pair of elastic composites having stretchability and flexibility; and a first electrode and a second electrode, which are deformable and electrically connected to both sides of the thermoelectric material, respectively, and whose one surfaces face each other. Thus, since the thermoelectric module has excellent stretchability, flexibility and thermal conductivity, the thermoelectric module is suitably applied to a wearable device that exhibits excellent efficiency during cooling or heating and is in contact with a human body.Type: GrantFiled: June 7, 2021Date of Patent: December 5, 2023Assignee: Seoul National University R&DB FoundationInventors: Seung Hwan Ko, Jin Woo Lee, Hea Youn Sul
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Publication number: 20230266078Abstract: In an embodiment a method for preparing a laminate includes forming a cured film by coating a source material composition including a polymer for a base layer and an inorganic particle for forming a pore, obtaining a porous base layer having a spherical pore derived from the inorganic particle by removing the inorganic particle from the cured film through an etching process and forming a coating layer, which has a repeated pattern, on a surface of the porous base layer.Type: ApplicationFiled: June 6, 2022Publication date: August 24, 2023Inventors: Min Jae Lee, Byung Wook Kim, Seung Hwan Ko, Jin Woo Lee, Yeong Ju Jung
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Publication number: 20220350250Abstract: The present disclosure relates to a method for micropatterning on silicone-based elastomer, the method including forming an initiator at a position of the silicone-based elastomer having high optical transmittance and transparency, and moving a laser beam to induce chain pyrolysis, thereby forming micropatterns with high quality in a very short time.Type: ApplicationFiled: April 10, 2020Publication date: November 3, 2022Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Seung Hwan KO, Jae Ho SHIN, Phil Lip WON, Seong Min JEONG
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Publication number: 20220203379Abstract: A filter includes a dust collecting unit, and the dust collecting unit includes: a filter media formed in a wrinkle shape including a plurality of bent parts folded up and down in a direction parallel to a plurality of parallel patterns and a connection part; a conductive coating layer pattern including a plurality of parallel patterns; and a first power source electrically connected to a first end and a second end of the conductive coating layer pattern and configured to apply a voltage, wherein the connection part connects the adjacent bent parts, a parallel pattern of the plurality of parallel patterns is disposed in the connection part, and the plurality of parallel patterns includes a first and a second adjacent parallel patterns, and a first current flowing through the first adjacent parallel flows in a direction opposite to a second current flowing through the second adjacent parallel pattern.Type: ApplicationFiled: August 26, 2021Publication date: June 30, 2022Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, Seoul National University R&DB FoundationInventors: Dong Ho KWON, Gee Young Shin, Myung Hoe Kim, Seung Sik Han, Seung Hwan Ko, Sung Geun Han, Jin Mo Kim
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Publication number: 20220111325Abstract: A mask according to an embodiment of the present disclosure may adjust permeability thereof by including and using an air filter unit which is capable of expanding or contracting, in at least one direction, a filter for filtering particles contained in air passing through the mask by pores.Type: ApplicationFiled: November 17, 2020Publication date: April 14, 2022Inventors: Seung Hwan KO, Jae Ho SHIN, Seong Min JEONG, Jinmo KIM, Joonwha CHOI
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Publication number: 20210296554Abstract: Disclosed is a stretchable and flexible thermoelectric module including: a thermoelectric material; a pair of elastic composites having stretchability and flexibility; and a first electrode and a second electrode, which are deformable and electrically connected to both sides of the thermoelectric material, respectively, and whose one surfaces face each other. Thus, since the thermoelectric module has excellent stretchability, flexibility and thermal conductivity, the thermoelectric module is suitably applied to a wearable device that exhibits excellent efficiency during cooling or heating and is in contact with a human body.Type: ApplicationFiled: June 7, 2021Publication date: September 23, 2021Applicant: Seoul National University R&DB FoundationInventors: Seung Hwan Ko, Jin Woo Lee, Hea Youn Sul
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Publication number: 20150236366Abstract: Provided is a flexible fuel cell.Type: ApplicationFiled: December 19, 2014Publication date: August 20, 2015Applicants: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy SystemsInventors: Ik Whang CHANG, Jin Hwan LEE, Tae Hyun PARK, Suk Won CHA, Seung Hwan KO
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Patent number: 8865114Abstract: Provided are methods for producing nanostructures and nanostructures obtained thereby. The methods include heating a certain point of a substrate dipped into a precursor solution of the nanostructures so that the nanostructures are grown in a liquid phase environment without evaporation of the precursor solution. The methods show excellent cost-effectiveness because of the lack of a need for precursor evaporation at high temperature. In addition, unlike the vapor-liquid-solid (VLS) process performed in a vapor phase, the method includes growing nanostructures in a liquid phase environment, and thus provides excellent safety and eco-friendly characteristics as well as cost-effectiveness. Further, the method includes locally heating a substrate dipped into a precursor solution merely at a point where the nanostructures are to be grown, so that the nanostructures are grown directly at a desired point of the substrate. Therefore, it is possible to grow and produce nanostructures directly in a device.Type: GrantFiled: April 28, 2010Date of Patent: October 21, 2014Assignee: Korea Advanced Institute of Science and TechnologyInventors: Inkyu Park, Seung Hwan Ko
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Patent number: 8800902Abstract: The invention relate to an attachment with interchangeable jaws, in which jaws can be interchanged according to the work purpose in the use of the attachment attached to construction equipment such as an excavator and configured to crush or shear concrete or reinforcing bars. The attachment comprises a main body unit connected to heavy construction equipment, and a jaw unit connected to the main body unit. The main body unit comprises a pair of lock pins, and at least one operating cylinder. The lock pins and the least one operating cylinder are mounted on a main body unit frame. The main body unit frame comprises an equipment connecting section, a first support, a second support, and a hook pin-receiving portion. The jaw unit comprises a pair of jaws, a jaw pin, and a hook pin. The jaw unit frame comprises a third support.Type: GrantFiled: June 4, 2012Date of Patent: August 12, 2014Inventor: Seung Hwan Ko
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Publication number: 20130341532Abstract: A system and method for curing ink are provided. The ink curing system includes: at least one laser generator that generates laser beams of different wavelength bands having selectivity of a depth direction toward a plurality of layers in order to cure the plurality of layers that are printed as a multilayer in a thickness direction of a substrate on the substrate; and a controller that controls operation of the laser generator. Thereby, even if a layer is formed as a multilayer, because a curing time, a curing degree, and strength on a layer basis can be applied while being efficiently adjusted, a phenomenon in which a printing quality failure occurs can be reduced remarkably more than the conventional art, and because a curing time can be shortened, productivity can be improved according to decrease of a tack time.Type: ApplicationFiled: February 27, 2012Publication date: December 26, 2013Inventors: Seung-Hyun Lee, Deok Kyun Yoon, Dong-Soo Kim, Seung Hwan Ko, Hyung jin Sung, Hyun Wook Kang, Jun Yeob Yeo, Suk Joon Hong
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Publication number: 20130320122Abstract: The invention relate to an attachment with interchangeable jaws, in which jaws can be interchanged according to the work purpose in the use of the attachment attached to construction equipment such as an excavator and configured to crush or shear concrete or reinforcing bars. The attachment comprises a main body unit connected to heavy construction equipment, and a jaw unit connected to the main body unit. The main body unit comprises a pair of lock pins, and at least one operating cylinder. The lock pins and the least one operating cylinder are mounted on a main body unit frame. The main body unit frame comprises an equipment connecting section, a first support, a second support, and a hook pin-receiving portion. The jaw unit comprises a pair of jaws, a jaw pin, and a hook pin. The jaw unit frame comprises a third support.Type: ApplicationFiled: June 4, 2012Publication date: December 5, 2013Inventor: Seung Hwan Ko
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Publication number: 20130319199Abstract: The present invention provides a blade positioning structure for a shear, in which a first jaw comprising a first lower shear blade and a second jaw comprising a second lower shear blade are connected with each other by a jaw pin, the second lower shear blade being configured to perform a shearing operation in cooperation with the first lower shear blade. A first upper shear blade is formed above the first lower shear blade, and a third shear blade is configured to perform the shearing operation in cooperation with the first upper shear blade. A distance between a first shearing point formed by the first lower shear blade and the second lower shear blade, and the center of the jaw pin is shorter than that between a second shearing point formed by the first upper shear blade and the third shear blade, and the center of the jaw pin.Type: ApplicationFiled: June 4, 2012Publication date: December 5, 2013Inventor: Seung Hwan KO
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Publication number: 20130000713Abstract: A manufacturing method of a nanostructure according to an exemplary embodiment of the present invention includes: adhering a plurality of first nanoparticles on a substrate to form a nanoseed layer; growing the nanoseed layer on the substrate to form a plurality of nanowires; adhering a plurality of second nanoparticles to the side surface of the nanowires to form a nanoshell layer; and growing the nanoshell layer to form a plurality of nanobranches.Type: ApplicationFiled: October 17, 2011Publication date: January 3, 2013Applicant: Korea Advanced Institute of Science and TechnologyInventors: Seung Hwan Ko, Hyun Wook Kang, Junyeob Yeo, Sukjoon Hong, Hyung Jin Sung
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Publication number: 20110008245Abstract: Provided are methods for producing nanostructures and nanostructures obtained thereby. The methods include heating a certain point of a substrate dipped into a precursor solution of the nanostructures so that the nanostructures are grown in a liquid phase environment without evaporation of the precursor solution. The methods show excellent cost-effectiveness because of the lack of a need for precursor evaporation at high temperature. In addition, unlike the vapor-liquid-solid (VLS) process performed in a vapor phase, the method includes growing nanostructures in a liquid phase environment, and thus provides excellent safety and eco-friendly characteristics as well as cost-effectiveness. Further, the method includes locally heating a substrate dipped into a precursor solution merely at a point where the nanostructures are to be grown, so that the nanostructures are grown directly at a desired point of the substrate. Therefore, it is possible to grow and produce nanostructures directly in a device.Type: ApplicationFiled: April 28, 2010Publication date: January 13, 2011Applicant: KAIST (Korea Advanced Institute of Science and Technology)Inventors: Inkyu PARK, Seung Hwan KO
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Patent number: 7682970Abstract: The present invention relates to systems, materials and methods for the formation of conducting, semiconducting, and dielectric layers, structures and devices from suspensions of nanoparticles. Drop-on-demand systems are used in some embodiments to fabricate various electronic structures including conductors, capacitors, FETs. Selective laser ablation is used in some embodiments to pattern more precisely the circuit elements and to form small channel devices.Type: GrantFiled: June 29, 2006Date of Patent: March 23, 2010Assignee: The Regents of the University of CaliforniaInventors: Constantine P. Grigoropoulos, Seung-Hwan Ko, Jaewon Chung, Dimos Poulikakos, Heng Pan
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Publication number: 20100035375Abstract: The present invention relates to systems, materials and methods for the formation of conducting, semiconducting, and dielectric layers, structures and devices from suspensions of nanoparticles. Drop-on-demand systems are used in some embodiments to fabricate various electronic structures including conductors, capacitors, FETs. Selective laser ablation is used in some embodiments to pattern more precisely the circuit elements and to form small channel devices.Type: ApplicationFiled: June 29, 2006Publication date: February 11, 2010Applicants: The Regents of the University of CaliforniaInventors: Constantine P. Grigoropoulos, Seung-Hwan Ko, Jaewon Chung, Dimos Poulikakos, Heng Pan