Patents by Inventor Young-Kyun Kwon
Young-Kyun Kwon 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: 12040134Abstract: An apparatus for assembling a capacitor assembly and a method for assembling the capacitor assembly using the same according to the present disclosure includes: a processing module mechanically, electrically coupling a capacitor to a bracket to assemble to a capacitor assembly, a test module testing whether the assembled capacitor assembly normally operates, and a conveyor module in which the capacitor assembly is arranged to sequentially perform the processing and test processes while moving in one direction, and it is possible to precisely detect whether the capacitor assembly is defective through two or more tests, and if many mechanical defects occur, it is possible to reduce the possibility of occurrence of the mechanical defect by controlling and adjusting some of the processing modules and improve productivity.Type: GrantFiled: June 15, 2021Date of Patent: July 16, 2024Assignee: Samwha Electric Co. Ltd.Inventors: Jong On Park, Tae Yun Kim, Eun Kyun Joo, Young Jin Kwon, Jin Ho Kim, Geun Ju Cha, Chan Ser Jeon
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Publication number: 20150228917Abstract: Heterojunctions of single-walled carbon nanotubes and p-doped silicon produce a photocurrent when irradiated with visible light under reverse bias conditions. In optoelectronic devices utilizing the heterojunctions, the output current can be controlled completely by both optical and electrical inputs. The heterojunctions provide a platform for heterogeneous optoelectronic logic elements with high voltage-switchable photocurrent, photo-voltage responsivity, electrical ON/OFF ratio, and optical ON/OFF ratio. The devices are combined to make switches, logic elements, and imaging sensors. An assembly of 250,000 sensor elements on a centimeter-scale wafer is also provided, with each sensor element having a heterojunction of single-walled carbon nanotubes and p-doped silicon, and producing a current dependent on both the optical and the electrical input.Type: ApplicationFiled: September 19, 2013Publication date: August 13, 2015Inventors: Yung Joon Jung, Swastik Kar, Young Lae Kim, Hyun Young Jung, Young Kyun Kwon
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Patent number: 7479240Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.Type: GrantFiled: November 9, 2005Date of Patent: January 20, 2009Assignee: Nanomix, Inc.Inventors: Seung-Hoon Jhi, Young-Kyun Kwon, Keith Bradley, Jean-Christophe P. Gabriel
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Publication number: 20070092437Abstract: According to the invention, nanostructured storage materials are provided for storing hydrogen. The nanostructured storage materials can include a network of light elements, such as Be, B, C, N, O, F, Mg, P, S, and Cl, coupled with sp2 bonds. The hydrogen adsorption to the nanostructured storage material is improved by modifying the sp2 bonds. The sp2 bonds can be modified by forming the nanostructured storage material from the above light elements, possibly with a shape other than a planar layer, and by introducing defects. A chemical vapor deposition technique can be used for the synthesis, where doping gases are included into the flow. Methods for forming the nanostructured storage material with defects include removing light elements from the nanostructured storage material by irradiation with electrons, neutrons, ions, gamma rays, X-rays, and microwaves.Type: ApplicationFiled: December 11, 2001Publication date: April 26, 2007Inventors: Young-Kyun Kwon, Seung-Hoon Jhi, Keith Bradley, Philip Collins, Jean-Christophe Gabriel, George Gruner
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Patent number: 7181811Abstract: This application relates to a micro-fastening system and, more particularly, to a mechanical micro-fastening system employing a plurality of mating nanoscale fastening elements (16, 18) and a method of manufacturing a micro-fastening system. The mating nanoscale fastening elements (16, 18) are formed by functionalizing nanotubes having an ordered array of hexagons with pentagons and heptagons at particular heterojunctions.Type: GrantFiled: February 11, 1999Date of Patent: February 27, 2007Assignee: Board of Trustees operating Michigan State UniversityInventors: David Tomanek, Richard Enbody, Young-Kyun Kwon
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Publication number: 20060165577Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.Type: ApplicationFiled: November 9, 2005Publication date: July 27, 2006Inventors: Seung-Hoon Jhi, Young-Kyun Kwon, Keith Bradley, Jean-Christophe Gabriel
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Patent number: 7036324Abstract: This invention provides for an apparatus and a method for operation of a cryogenic hydrogen storage system that contains a porous medium configured to adsorb hydrogen. The hydrogen storage and supply system includes a hydrogen source apparatus and a cryosorptive storage apparatus. Methods and devices that allow for an energy efficient filling of the cryosorptive apparatus from the hydrogen source apparatus are described. The cryosorptive hydrogen storage apparatus is filled with cold, pressurized hydrogen. During the course of filling, heat is generated in the cryosorptive storage device by the process of hydrogen adsorption on to the host medium. Methods and devices are provided for the removal the generated heat and the warm hydrogen. Further provided are devices and methods for the capture and recycle of escaped hydrogen within the hydrogen source apparatus.Type: GrantFiled: December 7, 2004Date of Patent: May 2, 2006Assignee: Nanomix Inc.Inventors: Keith Bradley, Jeff Wyatt, Seung-Hoon Jhi, Young-Kyun Kwon, Jean Christophe Gabriel, George Gruner
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Patent number: 6991773Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.Type: GrantFiled: October 8, 2002Date of Patent: January 31, 2006Assignee: Nanomix, Inc.Inventors: Seung-Hoon Jhi, Young-Kyun Kwon, Keith Bradley, Jean-Christophe P. Gabriel
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Publication number: 20050183424Abstract: This invention provides for an apparatus and a method for operation of a cryogenic hydrogen storage system that contains a porous medium configured to adsorb hydrogen. The hydrogen storage and supply system includes a hydrogen source apparatus and a cryosorptive storage apparatus. Methods and devices that allow for an energy efficient filling of the cryosorptive apparatus from the hydrogen source apparatus are described. The cryosorptive hydrogen storage apparatus is filled with cold, pressurized hydrogen. During the course of filling, heat is generated in the cryosorptive storage device by the process of hydrogen adsorption on to the host medium. Methods and devices are provided for the removal the generated heat and the warm hydrogen. Further provided are devices and methods for the capture and recycle of escaped hydrogen within the hydrogen source apparatus.Type: ApplicationFiled: December 7, 2004Publication date: August 25, 2005Inventors: Keith Bradley, Jeff Wyatt, Seung-Hoon Jhi, Young-Kyun Kwon, Jean-Christophe Gabriel, George Gruner
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Patent number: 6834508Abstract: This invention provides for an apparatus and a method for operation of a cryogenic hydrogen storage system that contains a porous medium configured to adsorb hydrogen. The hydrogen storage and supply system includes a hydrogen source apparatus and a cryosorptive storage apparatus. Methods and devices that allow for an energy efficient filling of the cryosorptive apparatus from the hydrogen source apparatus are described. The cryosorptive hydrogen storage apparatus is filled with cold, pressurized hydrogen. During the course of filling, heat is generated in the cryosorptive storage device by the process of hydrogen adsorption on to the host medium. Methods and devices are provided for the removal the generated heat and the warm hydrogen. Further provided are devices and methods for the capture and recycle of escaped hydrogen within the hydrogen source apparatus.Type: GrantFiled: October 31, 2002Date of Patent: December 28, 2004Assignee: Nanomix, Inc.Inventors: Keith Bradley, Jeff Wyatt, Seung-Hoon Jhi, Young-Kyun Kwon, Jean Christophe Gabriel, George Gruner
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Publication number: 20040093874Abstract: This invention provides for an apparatus and a method for operation of a cryogenic hydrogen storage system that contains a porous medium configured to adsorb hydrogen. The hydrogen storage and supply system includes a hydrogen source apparatus and a cryosorptive storage apparatus. Methods and devices that allow for an energy efficient filling of the cryosorptive apparatus from the hydrogen source apparatus are described. The cryosorptive hydrogen storage apparatus is filled with cold, pressurized hydrogen. During the course of filling, heat is generated in the cryosorptive storage device by the process of hydrogen adsorption on to the host medium. Methods and devices are provided for the removal the generated heat and the warm hydrogen. Further provided are devices and methods for the capture and recycle of escaped hydrogen within the hydrogen source apparatus.Type: ApplicationFiled: October 31, 2002Publication date: May 20, 2004Applicant: Nanomix, Inc.Inventors: Keith Bradley, Jeff Wyatt, Seung-Hoon Jhi, Young-Kyun Kwon, Jean Christophe Gabriel, George Gruner
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Publication number: 20040031387Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.Type: ApplicationFiled: October 8, 2002Publication date: February 19, 2004Applicant: Nanomix, Inc.Inventors: Seung-Hoon Jhi, Young-Kyun Kwon, Keith Bradley, Jean -Christophe P. Gabriel
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Patent number: 6672077Abstract: A hydrogen containing nanostructure is provided, where the hydrogen is adsorbed to the nanostructure by physisorption. The nanostructure includes light elements, selected from the second and third rows of the periodic table. The nanostructure is formed as a layered network of light elements coupled with covalent sp2 bonds. The chemical composition of the nanostructure can be such that the desorption temperature of hydrogen is greater than the liquefaction temperature of nitrogen, 77 K. Further, a hydrogen storage system is provided, including a container and a nanostructured storage material within the container, wherein the nanostructured storage material includes light elements, and the nanostructured storage material is capable of adsorbing hydrogen by physisorption. The hydrogen storage system can include a liquid nitrogen based cooling system, capable of cooling the nanostructured storage material below the desorption temperature of hydrogen.Type: GrantFiled: December 11, 2001Date of Patent: January 6, 2004Assignee: Nanomix, Inc.Inventors: Keith Bradley, Philip G. Collins, Jean-Christophe P. Gabriel, Young-Kyun Kwon, Seung-Hoon Jhi, George GrĂ¼ner
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Publication number: 20030167778Abstract: A hydrogen containing nanostructure is provided, where the hydrogen is adsorbed to the nanostructure by physisorption. The nanostructure includes light elements, selected from the second and third rows of the periodic table. The nanostructure is formed as a layered network of light elements coupled with covalent sp2 bonds. The chemical composition of the nanostructure can be such that the desorption temperature of hydrogen is greater than the liquefaction temperature of nitrogen, 77 K. Further, a hydrogen storage system is provided, including a container and a nanostructured storage material within the container, wherein the nanostructured storage material includes light elements, and the nanostructured storage material is capable of adsorbing hydrogen by physisorption. The hydrogen storage system can include a liquid nitrogen based cooling system, capable of cooling the nanostructured storage material below the desorption temperature of hydrogen.Type: ApplicationFiled: March 31, 2003Publication date: September 11, 2003Applicant: Nanomix, Inc.Inventors: Keith Bradley, Philip G. Collins, Jean-Christophe P. Gabriel, Young-Kyun Kwon, Seung-Hoon Jhi, George Gruner