Patents by Inventor Shi Hyeong Kim
Shi Hyeong Kim 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: 11085422Abstract: Yarn energy harvesters containing conducing nanomaterials (such as carbon nanotube (CNT) yarn harvesters) that electrochemically convert tensile or torsional mechanical energy into electrical energy. Stretched coiled yarns can generate 250 W/kg of peak electrical power when cycled up to 24 Hz, and can generate up to 41.2 J/kg of electrical energy per mechanical cycle. Unlike for other harvesters, torsional rotation produces both tensile and torsional energy harvesting and no bias voltage is required, even when electrochemically operating in salt water. Since homochiral and heterochiral coiled harvester yarns provide oppositely directed potential changes when stretched, both contribute to output power in a dual-electrode yarn.Type: GrantFiled: June 28, 2018Date of Patent: August 10, 2021Assignees: Board of Regents, The University of Texas System, Industry-University Cooperation Foundation Hanyang UniversityInventors: Ray H. Baughman, Shaoli Fang, Carter S. Haines, Na Li, Jiangtao Di, Seon Jeong Kim, Shi Hyeong Kim, Keon Jung Kim, Tae Jin Mun, Changsoon Choi
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Publication number: 20200208614Abstract: Yarn energy harvesters containing conducing nanomaterials (such as carbon nanotube (CNT) yarn harvesters) that electrochemically convert tensile or torsional mechanical energy into electrical energy. Stretched coiled yarns can generate 250 W/kg of peak electrical power when cycled up to 24 Hz, and can generate up to 41.2 J/kg of electrical energy per mechanical cycle. Unlike for other harvesters, torsional rotation produces both tensile and torsional energy harvesting and no bias voltage is required, even when electrochemically operating in salt water. Since homochiral and heterochiral coiled harvester yarns provide oppositely directed potential changes when stretched, both contribute to output power in a dual-electrode yarn.Type: ApplicationFiled: June 28, 2018Publication date: July 2, 2020Applicants: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, HANYANG UNIVERSITYInventors: Ray H. Baughman, Shaoli Fang, Carter S. Haines, Na Li, Jiangtao Di, Seon Jeong Kim, Shi Hyeong Kim, Keon Jung Kim, Tae Jin Mun, Changsoon Choi
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Patent number: 10458046Abstract: The present invention relates to a graphene conjugate fiber and a method for manufacturing same, and more particularly, to a conjugate fiber including graphene and a polymer, wherein a wrinkled structure of the graphene is maintained in a fiber state. The graphene conjugate fiber manufactured thereby has superior mechanical properties, is flexible, and has high utility by being manufactured as a fiber.Type: GrantFiled: February 19, 2018Date of Patent: October 29, 2019Assignee: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventors: Seon Jeong Kim, Min Kyoon Shin, Shi Hyeong Kim
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Patent number: 10106420Abstract: The present invention relates to a method for manufacturing a graphene fiber and a graphene fiber manufactured thereby, comprising the following steps: a) preparing a dispersion liquid by dispersing graphene with a surfactant in a solvent; b) preparing a composite fiber by mixing the dispersion liquid with a polymer solution, wet spinning and drying same; and c) removing polymers by heat-treating or treating the composite fiber with strong acid. The graphene fiber manufactured by the method has superior electric and mechanical properties, is flexible, and can be utilized as a storage medium for energy, hydrogen, etc. due to porosity from having a wrinkled structure.Type: GrantFiled: July 7, 2016Date of Patent: October 23, 2018Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Seon Jeong Kim, Min Kyoon Shin, Shi Hyeong Kim
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Publication number: 20180274132Abstract: The present invention relates to a graphene conjugate fiber and a method for manufacturing same, and more particularly, to a conjugate fiber including graphene and a polymer, wherein a wrinkled structure of the graphene is maintained in a fiber state. The graphene conjugate fiber manufactured thereby has superior mechanical properties, is flexible, and has high utility by being manufactured as a fiber.Type: ApplicationFiled: February 19, 2018Publication date: September 27, 2018Inventors: Seon Jeong KIM, Min Kyoon SHIN, Shi Hyeong KIM
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Patent number: 9691557Abstract: Disclosed is a free-standing hybrid nanomembrane capable of energy storage. The free-standing hybrid nanomembrane includes carbon nanotube sheets and a conducting polymer coated on the carbon nanotube sheets. The carbon nanotube sheets are densified sheets formed by evaporating an alcohol from carbon nanotube aerogel sheets. The conducting polymer is coated on the carbon nanotube sheets by vapor phase polymerization. Further disclosed is a method for fabricating the free-standing hybrid nanomembrane.Type: GrantFiled: June 1, 2015Date of Patent: June 27, 2017Assignee: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventors: Seon Jeong Kim, Shi Hyeong Kim, Min Kyoon Shin, Jae Ah Lee
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Patent number: 9514892Abstract: The present invention relates to a yarn-type micro-supercapacitor fabricated by twisting a hybrid nanomembrane coated with a conducting polymer on a carbon nanotube sheet. Thus, the yarn-type micro-supercapacitor has superior performance. Particularly, since a 2-ply electrode manufactured by being twisted together with a metal wire has very high power and energy density in liquid or solid electrolyte and also has superior mechanical strength and flexibility, the yarn-type micro-supercapacitor may be variously deformed—for example, bent, twisted, or woven—to maintain superior electrochemical performance.Type: GrantFiled: November 29, 2012Date of Patent: December 6, 2016Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Seon Jeong Kim, Shi Hyeong Kim, Min Kyoon Shin, Jae Ah Lee
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Publication number: 20160318767Abstract: The present invention relates to a method for manufacturing a graphene fiber and a graphene fiber manufactured thereby, comprising the following steps: a) preparing a dispersion liquid by dispersing graphene with a surfactant in a solvent; b) preparing a composite fiber by mixing the dispersion liquid with a polymer solution, wet spinning and drying same; and c) removing polymers by heat-treating or treating the composite fiber with strong acid. The graphene fiber manufactured by the method has superior electric and mechanical properties, is flexible, and can be utilized as a storage medium for energy, hydrogen, etc. due to porosity from having a wrinkled structure.Type: ApplicationFiled: July 7, 2016Publication date: November 3, 2016Inventors: Seon Jeong KIM, Min Kyoon SHIN, Shi Hyeong KIM
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Patent number: 9453118Abstract: The present invention relates to a graphene-based hybrid polymer composite fiber and a method for manufacturing same, and more particularly, to a hybrid composite fiber including the graphene, a carbon nanotube, and a polymer, wherein the graphene and the carbon nanotube are combined by means of self-organization through hydrogen bonding, so as to be very tough and flexible, without involving stretching, and to a method for manufacturing the hybrid composite fiber.Type: GrantFiled: March 9, 2012Date of Patent: September 27, 2016Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Seon Jeong Kim, Min Kyoon Shin, Shi Hyeong Kim
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Patent number: 9251968Abstract: Disclosed is a free-standing hybrid nanomembrane capable of energy storage. The free-standing hybrid nanomembrane includes carbon nanotube sheets and a conducting polymer coated on the carbon nanotube sheets. The carbon nanotube sheets are densified sheets formed by evaporating an alcohol from carbon nanotube aerogel sheets. The conducting polymer is coated on the carbon nanotube sheets by vapor phase polymerization. Further disclosed is a method for fabricating the free-standing hybrid nanomembrane.Type: GrantFiled: December 11, 2012Date of Patent: February 2, 2016Assignee: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventors: Seon Jeong Kim, Shi Hyeong Kim, Min Kyoon Shin, Jae Ah Lee
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Publication number: 20150294800Abstract: Disclosed is a free-standing hybrid nanomembrane capable of energy storage. The free-standing hybrid nanomembrane includes carbon nanotube sheets and a conducting polymer coated on the carbon nanotube sheets. The carbon nanotube sheets are densified sheets formed by evaporating an alcohol from carbon nanotube aerogel sheets. The conducting polymer is coated on the carbon nanotube sheets by vapor phase polymerization. Further disclosed is a method for fabricating the free-standing hybrid nanomembrane.Type: ApplicationFiled: June 1, 2015Publication date: October 15, 2015Inventors: Seon Jeong KIM, Shi Hyeong KIM, Min Kyoon SHIN, Jae Ah LEE
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Publication number: 20140011027Abstract: The present invention relates to a graphene conjugate fiber and a method for manufacturing same, and more particularly, to a conjugate fiber including graphene and a polymer, wherein a wrinkled structure of the graphene is maintained in a fiber state. The graphene conjugate fiber manufactured thereby has superior mechanical properties, is flexible, and has high utility by being manufactured as a fiber.Type: ApplicationFiled: March 9, 2012Publication date: January 9, 2014Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY CORPERATION FOUNDATI ON HANYANG UNIVERSITY)Inventors: Seon Jeong Kim, Min Kyoon Shin, Shi Hyeong Kim
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Publication number: 20140001417Abstract: The present invention relates to a graphene-based hybrid polymer composite fiber and a method for manufacturing same, and more particularly, to a hybrid composite fiber including the graphene, a carbon nanotube, and a polymer, wherein the graphene and the carbon nanotube are combined by means of self-organization through hydrogen bonding, so as to be very tough and flexible, without involving stretching, and to a method for manufacturing the hybrid composite fiber.Type: ApplicationFiled: March 9, 2012Publication date: January 2, 2014Applicant: IUCF-HYU(Industry University Cooperation Foundati on Hanyang University)Inventors: Seon Jeong Kim, Min Kyoon Shin, Shi Hyeong Kim
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Publication number: 20140004344Abstract: The present invention relates to a method for manufacturing a graphene fiber and a graphene fiber manufactured thereby, comprising the following steps: a) preparing a dispersion liquid by dispersing graphene with a surfactant in a solvent; b) preparing a composite fiber by mixing the dispersion liquid with a polymer solution, wet spinning and drying same; and c) removing polymers by heat-treating or treating the composite fiber with strong acid. The graphene fiber manufactured by the method has superior electric and mechanical properties, is flexible, and can be utilized as a storage medium for energy, hydrogen, etc. due to porosity from having a wrinkled structure.Type: ApplicationFiled: March 9, 2012Publication date: January 2, 2014Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Seon Jeong Kim, Min Kyoon Shin, Shi Hyeong Kim