Patents by Inventor Hong-Soo Ha
Hong-Soo Ha 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: 11659776Abstract: The present invention relates to a high temperature-superconducting wire having a superconducting layer laminated thereon and a method of manufacturing the same. The method includes: preparing a pair of superconducting wires each of which includes a metal substrate, a buffer layer, a superconducting layer, and a protective layer; laminating the pair of superconducting wires to allow respective protective layers to face each other; performing thermal treatment to the laminated superconducting wires to join the protective layers together; separating the metal substrate and the buffer layer from the superconducting layer on one side; and forming a protective layer on an upper part of the superconducting layer having a surface exposed.Type: GrantFiled: June 2, 2020Date of Patent: May 23, 2023Inventors: Hong Soo Ha, Sang Soo Oh, Sung Kyu Kim
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Publication number: 20220246329Abstract: Proposed is a high temperature superconducting wire manufacturing method and a high temperature superconducting wire having multiple superconducting layers formed by applying the method. The method includes a stacking process in which a pair of protective layers of superconducting wires including a substrate, a superconducting layer, and the protective layer are stacked such that the protective layers face each other, a joining process in which the protective layers facing each other are diffusion joining together by thermal treatment and become a joining protective layer, an exfoliating process in which a layered structure of an upper portion of the corresponding superconducting layer is removed such that one side of the superconducting layer is exposed to the outside, and an outermost protective layer forming process in which an outer protective layer formed of the same material as the joining protective layer is formed on the upper portion of the exposed superconducting layer.Type: ApplicationFiled: March 23, 2022Publication date: August 4, 2022Inventors: Hong Soo HA, Gwan Tae KIM, Hyun Woo NOH, Ho Sup KIM, Sang Soo OH
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Publication number: 20210265554Abstract: Proposed are a thin film having single crystallinity and an excellent crystal orientation property, a method of manufacturing the same, and a semiconductor device, a battery device, a superconducting wire, and a superconducting article including the thin film having single crystallinity. The technical gist of the present disclosure includes a thin film having single crystallinity, which is formed by depositing a polycrystalline second material on an upper portion of a substrate including a polycrystalline first material and which has a crystal orientation property satisfying the following Relational Expression 1 at a grain boundary, a method of manufacturing the same, and a semiconductor device, a battery device, a superconducting wire, and a superconducting article including the thin film having single crystallinity. 0°<FWHM2?3°??[Relational Expression 1] (FWHM2 is a full width at half maximum of a distribution curve of a misorientation angle at the grain boundary of the thin film).Type: ApplicationFiled: April 30, 2021Publication date: August 26, 2021Inventors: Ho Sup KIM, Sang Soo OH, Hong Soo HA, Jeong Hyeon JO, Gwan Tae KIM, Hyun Woo NOH
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Publication number: 20200313064Abstract: The present invention relates to a high temperature-superconducting wire having a superconducting layer laminated thereon and a method of manufacturing the same. The method includes: preparing a pair of superconducting wires each of which includes a metal substrate, a buffer layer, a superconducting layer, and a protective layer; laminating the pair of superconducting wires to allow respective protective layers to face each other; performing thermal treatment to the laminated superconducting wires to join the protective layers together; separating the metal substrate and the buffer layer from the superconducting layer on one side; and forming a protective layer on an upper part of the superconducting layer having a surface exposed.Type: ApplicationFiled: June 2, 2020Publication date: October 1, 2020Inventors: Hong Soo HA, Sang Soo OH, Sung Kyu KIM
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Patent number: 9362477Abstract: Provided is a method of forming a ceramic wire. In the method, a ceramic precursor film is deposited on a wire substrate. Then, the wire substrate on which the ceramic precursor film is deposited is treated by heating. For treating the wire substrate by heating, a temperature of the wire substrate and/or an oxygen partial pressure of the wire substrate are controlled such that the ceramic precursor film is in a liquid state and an epitaxy ceramic film is formed from the liquid ceramic precursor film on the wire substrate.Type: GrantFiled: August 3, 2010Date of Patent: June 7, 2016Assignee: SUNAM CO., LTD.Inventors: Seung-Hyun Moon, Hun-Ju Lee, Sang-Im Yoo, Hong-Soo Ha
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Patent number: 8900365Abstract: Disclosed is a deposition apparatus for depositing a specific substance on an elongate substrate such as an elongate strip of tape or film. The apparatus includes a vacuum chamber, supply reel and the for reel for supplying elongate substrate in rolled form, a drum, disposed in the vacuum chamber, the drum having a helically-shaped guide groove formed along an outer surface of the drum for receiving the elongate substrate supplied from the supply reel to be wound in the guide groove and to subsequently feed the elongate substrate to a retreat reel to wind thereon upon rotation of the drum, and a deposition source material for depositing a material onto a surface of the elongate substrate which is wound on the drum.Type: GrantFiled: August 6, 2007Date of Patent: December 2, 2014Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Kyu Jung Song, Rock Kil Ko, Ho Sup Kim
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Patent number: 8700110Abstract: A rolled superconducting article includes: a cylindrical bobbin having a post in a cylindrical shape; a superconducting strip wound on the cylindrical bobbin in a rolled shape with a predetermined tension applied, wherein the superconducting strip is formed of a superconducting thin film, which is coated with a metal coating layer on a facing surface of the superconducting thin film, and a stabilizing substrate wound on the superconducting strip, wherein the stabilizing substrate is coated with a metal coating layer on a facing surface of the stabilizing substrate; an anti-bonding substrate wound on an outer surface of the stabilizing substrate with a predetermined tension applied; wherein the superconducting thin film is thermally adhered to the stabilizing substrate by heat-treating the rolled superconducting strip with the anti-bonding substrate wound therearound.Type: GrantFiled: May 31, 2012Date of Patent: April 15, 2014Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Kyu Jung Song, Rock Kil Ko, Ho Seop Kim
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Patent number: 8633137Abstract: Disclosed herein is a high-temperature superconducting tape, including: a substrate; a buffer layer formed on the substrate; and a high-temperature superconducting layer formed on the buffer layer, wherein the substrate is made of SUS310s or stainless steel containing 0.01-1% of silicon (Si) and 1-5% of molybdenum (Mo) and has an average metal crystal grain size of 12 ?m or less, and the high-temperature superconducting layer is made of a ReBCO (ReBa2Cu3O7, Re=Nd, Sm, Eu, Gd, Dy, Ho, Y)-based superconductive material. The high-temperature superconducting tape is advantageous with the result that a high-grade superconducting layer can be deposited on the thin buffer layer and thus the critical current density of the high-temperature superconducting tape can be improved, thereby remarkably improving the characteristics of the high-temperature superconducting tape.Type: GrantFiled: September 7, 2011Date of Patent: January 21, 2014Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Ho Sup Kim
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Patent number: 8569212Abstract: Disclosed herein is a superconducting wire which is used in, for example, superconducting magnet energy storage systems. The superconducting wire includes: a wire comprising a metal substrate, a superconducting layer and a buffer interposed between the metal substrate and the superconducting layer; and a stabilizer layer plated on the wire, wherein an epoxy resin insulating layer coats the entire surface of the stabilizer layer. The superconducting wire makes it possible to reduce damage to an insulating material when forming the insulating material during the production of the superconducting wire, and it has a uniform surface and can be produced in a simple manner.Type: GrantFiled: March 1, 2011Date of Patent: October 29, 2013Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Seok Ho Kim, Gi Deok Shim
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Patent number: 8441247Abstract: The present invention relates to an apparatus and method for measuring the critical current of a superconducting tape. A continuous critical current measurement apparatus for measuring critical current of a superconducting tape while feeding a superconducting tape in a liquid nitrogen container includes wheel-type current terminals and wheel-type voltage terminals. The superconducting tape is continuously supplied and fed by a reel-to-reel device, and the critical current of the superconducting tape is measured in real time using the wheel-type current terminals and the wheel-type voltage terminals while the superconducting tape is fed at constant linear velocity in contact with the wheel-type current terminals and the wheel-type voltage terminals.Type: GrantFiled: July 20, 2010Date of Patent: May 14, 2013Assignee: Korea Electrotechnology Research InstituteInventors: Hong-Soo Ha, Seok-ho Kim, Ki-deok Sim, Sang-su Oh, Min-won Park
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Patent number: 8367585Abstract: Disclosed herein is a superconducting strip having a metal coating layer and a method of manufacturing the superconducting strip.Type: GrantFiled: July 22, 2008Date of Patent: February 5, 2013Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Kyu Jung Song, Rock Kil Ko, Ho Sup Kim
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Patent number: 8353257Abstract: Disclosed herein is a deposition apparatus with a guide roller for a long superconducting tape. The deposition apparatus has a supply reel which is provided in a vacuum chamber and rotated to supply the tape, a feed and deposition unit which is spaced apart from the supply reel and vacuum deposits a superconducting layer on the tape while feeding the tape, and a collection reel which is spaced apart from the feed and deposition unit and is rotated to collect the vacuum-deposited tape.Type: GrantFiled: July 22, 2008Date of Patent: January 15, 2013Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Kyu Jung Song, Rock Kil Ko, Ho Sup Kim
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Publication number: 20120329658Abstract: Provided is a method of forming a ceramic wire. In the method, a ceramic precursor film is deposited on a wire substrate. Then, the wire substrate on which the ceramic precursor film is deposited is treated by heating. For treating the wire substrate by heating, a temperature of the wire substrate and/or an oxygen partial pressure of the wire substrate are controlled such that the ceramic precursor film is in a liquid state and an epitaxy ceramic film is formed from the liquid ceramic precursor film on the wire substrate.Type: ApplicationFiled: August 3, 2010Publication date: December 27, 2012Inventors: Seung-Hyun Moon, Hun-Ju Lee, Sang-Im Yoo, Hong-Soo Ha
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Publication number: 20120283105Abstract: A rolled superconducting article includes: a cylindrical bobbin having a post in a cylindrical shape; a superconducting strip wound on the cylindrical bobbin in a rolled shape with a predetermined tension applied, wherein the superconducting strip is formed of a superconducting thin film, which is coated with a metal coating layer on a facing surface of the superconducting thin film, and a stabilizing substrate wound on the superconducting strip, wherein the stabilizing substrate is coated with a metal coating layer on a facing surface of the stabilizing substrate; an anti-bonding substrate wound on an outer surface of the stabilizing substrate with a predetermined tension applied; wherein the superconducting thin film is thermally adhered to the stabilizing substrate by heat-treating the rolled superconducting strip with the anti-bonding substrate wound therearound.Type: ApplicationFiled: May 31, 2012Publication date: November 8, 2012Applicant: Korea Electrotechnology Research InstituteInventors: Hong Soo HA, Sang Soo OH, Dong Woo HA, Kyu Jung SONG, Rock Kil KO, Ho Sup KIM
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Publication number: 20120252680Abstract: Disclosed herein is a high-temperature superconducting tape, including: a substrate; a buffer layer formed on the substrate; and a high-temperature superconducting layer formed on the buffer layer, wherein the substrate is made of SUS310s or stainless steel containing 0.01-1% of silicon (Si) and 1-5% of molybdenum (Mo) and has an average metal crystal grain size of 12 ?m or less, and the high-temperature superconducting layer is made of a ReBCO (ReBa2Cu3O7, Re=Nd, Sm, Eu, Gd, Dy, Ho, Y)-based superconductive material. The high-temperature superconducting tape is advantageous with the result that a high-grade superconducting layer can be deposited on the thin buffer layer and thus the critical current density of the high-temperature superconducting tape can be improved, thereby remarkably improving the characteristics of the high-temperature superconducting tape.Type: ApplicationFiled: September 7, 2011Publication date: October 4, 2012Applicant: Korea Electrotechnology Research InstituteInventors: Hong Soo HA, Sang Soo Oh, Ho Sup Kim
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Patent number: 8043716Abstract: Disclosed herein is a gradient thin film, formed on a substrate by simultaneously depositing different materials on the substrate using a plurality of thin film deposition apparatuses provided in a vacuum chamber, wherein the gradient thin film is formed such that the composition thereof is continuously changed depending on the thickness thereof by deposition control plates provided in the path through which the different materials move to the substrate. The gradient thin film is advantageous in that the thin film is formed by simultaneously depositing different materials using various deposition apparatuses, so that the composition thereof is continuously changed depending on the thickness thereof, with the result that the physical properties of a thin film are easily controlled and the number of deposition processes is decreased, and thus processing time and manufacturing costs are decreased, thereby improving economic efficiency.Type: GrantFiled: July 22, 2008Date of Patent: October 25, 2011Assignee: Korea Electrotechnology Research InstituteInventors: Ho Sup Kim, Sang Soo Oh, Tae Hyung Kim, Dong Woo Ha, Kyu Jung Song, Hong Soo Ha, Rock Kil Ko, Nam Jin Lee
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Patent number: 8034746Abstract: Disclosed herein is a method of manufacturing round wire using superconducting tape, including the steps of: slitting superconducting tape into superconducting tape strips; silver-coating the slit superconducting tape strips; laminating the silver-coated superconducting tape strips to form a superconducting tape laminate having a square cross-section; holding the superconducting tape laminate; heat-treating the fixed superconducting tape laminate to cause diffusion junction between silver; and copper-plating the heat-treated superconducting tape laminate to have a circular section.Type: GrantFiled: June 30, 2009Date of Patent: October 11, 2011Assignee: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Rock Kil Ko, Ho Sup Kim
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Patent number: 8026197Abstract: A method and apparatus for manufacturing superconducting tape through an integrated process, including the steps of: heat-treating a substrate wound on a drum in a reaction chamber; continuously depositing components, constituting a buffer layer, a superconducting layer, a contact resistance layer, and a protective layer of the superconducting tape, which are supplied from a deposition chamber, on the substrate; and heat-treating the substrate deposited with the components.Type: GrantFiled: September 28, 2007Date of Patent: September 27, 2011Assignee: Korea Electrotechnology Research InstituteInventors: Ho Seop Kim, Sang Soo Oh, Hong Soo Ha, Kyu Jung Song, Dong Woo Ha, Rock Kil Ko
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Publication number: 20110218112Abstract: Disclosed herein is a superconducting wire which is used in, for example, superconducting magnet energy storage systems. The superconducting wire includes: a wire comprising a metal substrate, a superconducting layer and a buffer interposed between the metal substrate and the superconducting layer; and a stabilizer layer plated on the wire, wherein an epoxy resin insulating layer coats the entire surface of the stabilizer layer. The superconducting wire makes it possible to reduce damage to an insulating material when forming the insulating material during the production of the superconducting wire, and it has a uniform surface and can be produced in a simple manner.Type: ApplicationFiled: March 1, 2011Publication date: September 8, 2011Applicant: Korea Electrotechnology Research InstituteInventors: Hong Soo Ha, Sang Soo Oh, Seok Ho Kim, Gi Deok Shim
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Publication number: 20110140710Abstract: The present invention relates to an apparatus and method for measuring the critical current of a superconducting tape. A continuous critical current measurement apparatus for measuring critical current of a superconducting tape while feeding a superconducting tape in a liquid nitrogen container includes wheel-type current terminals and wheel-type voltage terminals. The superconducting tape is continuously supplied and fed by a reel-to-reel device, and the critical current of the superconducting tape is measured in real time using the wheel-type current terminals and the wheel-type voltage terminals while the superconducting tape is fed at constant linear velocity in contact with the wheel-type current terminals and the wheel-type voltage terminals.Type: ApplicationFiled: July 20, 2010Publication date: June 16, 2011Applicant: Korea Electrotechnology Research InstituteInventors: Hong-soo Ha, Seok-ho Kim, Ki-deok Sim, Sang-soo Oh, Min-won Park