Patents by Inventor Jin Bae Na

Jin Bae Na 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).

  • Patent number: 11398326
    Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: July 26, 2022
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jin Bae Na, Han Joong Kim, Young Woong Kim, Chang Yeol Choi, Heo Gyung Sung, Seok Ju Lee
  • Publication number: 20200203043
    Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 25, 2020
    Inventors: Jin Bae NA, Han Joong KIM, Young Woong KIM, Chang Yeol CHOI, Heo Gyung SUNG, Seok Ju LEE
  • Patent number: 10692631
    Abstract: The present invention relates to a cryogenic cooling apparatus capable of stably maintaining a cryogenic condition by repairing or exchanging a sensor such as a temperature sensor of the cryogenic cooling apparatus without releasing vacuum states of the cryogenic cooling apparatus and a system connected thereto, when the sensor needs to be repaired or exchanged.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: June 23, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Seok Ju Lee, Han Joong Kim, Chang Yeol Choi, Heo Gyung Sung, Jin Bae Na
  • Patent number: 10629333
    Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: April 21, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jin Bae Na, Han Joong Kim, Young Woong Kim, Chang Yeol Choi, Heo Gyung Sung, Seok Ju Lee
  • Patent number: 10128026
    Abstract: A superconducting wire having improved electrical and physical properties.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: November 13, 2018
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jin Bae Na, Young Woong Kim, Chang Youl Choi, Cheol Hwi Ryu, Seok Ju Lee
  • Publication number: 20180182513
    Abstract: The present invention relates to a superconducting wire having improved electrical and physical properties.
    Type: Application
    Filed: June 23, 2016
    Publication date: June 28, 2018
    Inventors: Jin Bae NA, Young Woong KIM, Chang Youl CHOI, Cheol Hwi RYU, Seok Ju LEE
  • Patent number: 9959955
    Abstract: A superconducting cable includes a core part, in which the core part includes a former including a plurality of copper wires, a superconducting conductor layer including a plurality of superconducting wires connected in parallel to each other, an insulating layer, and a superconducting shield layer including a plurality of superconducting wires are sequentially arranged. A conducting layer formed of a metal having a current-carrying property at room temperature is provided on opposite surfaces of each of the superconducting wires of the superconducting conductor layer to reinforce mechanical rigidity of each of superconducting wires of the superconducting conductor layer, and the former has a cross-sectional area which is smaller than that of a former of a superconducting cable in which the conducting layer is not added to superconducting wires and which is designed on an assumption that all fault current flows to the former.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: May 1, 2018
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jin-Bae Na, Young-Woong Kim, Chang-Youl Choi, Heo-Gyung Sung, Seok-Ju Lee
  • Publication number: 20170352454
    Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.
    Type: Application
    Filed: November 11, 2014
    Publication date: December 7, 2017
    Applicant: LS Cable & System LTD.
    Inventors: Jin Bae NA, Han Joong KIM, Young Woong KIM, Chang Yeol CHOI, Heo Gyung SUNG, Seok Ju LEE
  • Publication number: 20170330653
    Abstract: The present invention relates to a cryogenic cooling apparatus capable of stably maintaining a cryogenic condition by repairing or exchanging a sensor such as a temperature sensor of the cryogenic cooling apparatus without releasing vacuum states of the cryogenic cooling apparatus and a system connected thereto, when the sensor needs to be repaired or exchanged.
    Type: Application
    Filed: November 11, 2014
    Publication date: November 16, 2017
    Applicant: LS Cable & System LTD.
    Inventors: Seok Ju LEE, Han Joong KIM, Chang Yeol CHOI, Heo Gyung SUNG, Jin Bae NA
  • Publication number: 20170309374
    Abstract: A superconducting cable includes a core part, in which the core part includes a former including a plurality of copper wires, a superconducting conductor layer including a plurality of superconducting wires connected in parallel to each other, an insulating layer, and a superconducting shield layer including a plurality of superconducting wires are sequentially arranged. A conducting layer formed of a metal having a current-carrying property at room temperature is provided on opposite surfaces of each of the superconducting wires of the superconducting conductor layer to reinforce mechanical rigidity of each of superconducting wires of the superconducting conductor layer, and the former has a cross-sectional area which is smaller than that of a former of a superconducting cable in which the conducting layer is not added to superconducting wires and which is designed on an assumption that all fault current flows to the former.
    Type: Application
    Filed: July 16, 2015
    Publication date: October 26, 2017
    Applicant: LS Cable & System LTD.
    Inventors: Jin-Bae NA, Young-Woong KIM, Chang-Youl CHOI, Heo-Gyung SUNG, Seok-Ju LEE
  • Patent number: 9780609
    Abstract: A superconducting synchronous motor having a simple and stable structure is provided. The superconducting synchronous motor according to one embodiment of the present invention comprises: a rotary shaft; a rotation core mounted at the rotary shaft so as to be rotated by connecting with the rotary shaft; and hooked magnetic poles extending from one end of the rotation core in a longitudinal direction. Each of the hooked magnetic poles is composed of first and second inductors of a magnetic material alternately engaged with each other and a superconducting wire to be wound, and comprises a first superconducting field winding and a second superconducting field winding fixed closely at the other end of a first inductor rotation core and the other end of a second inductor rotation core, respectively. Each of the first superconducting field winding and the second superconducting field winding excites the first inductor and the second inductor to different poles.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: October 3, 2017
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Tae Kuk Ko, Young Jin Hwang, Jin Bae Na, Sukjin Choi, Hyun Chul Jo, Jae Young Jang, Hyung Jun Kim, Jiho Lee
  • Publication number: 20150130303
    Abstract: A superconducting synchronous motor having a simple and stable structure is provided. The superconducting synchronous motor according to one embodiment of the present invention comprises: a rotary shaft; a rotation core mounted at the rotary shaft so as to be rotated by connecting with the rotary shaft; and hooked magnetic poles extending from one end of the rotation core in a longitudinal direction. Each of the hooked magnetic poles is composed of first and second inductors of a magnetic material alternately engaged with each other and a superconducting wire to be wound, and comprises a first superconducting field winding and a second superconducting field winding fixed closely at the other end of a first inductor rotation core and the to other end of a second inductor rotation core, respectively. Each of the first superconducting field winding and the second superconducting field winding excites the first inductor and the second inductor to different poles.
    Type: Application
    Filed: March 28, 2013
    Publication date: May 14, 2015
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Tae Kuk Ko, Young Jin Hwang, Jin Bae Na, Sukjin Choi, Hyun Chul Jo, Jae Young Jang, Hyung Jun Kim, Jiho Lee
  • Patent number: 8344835
    Abstract: The method of winding superconducting wire comprises a winding method comprising: winding the superconducting wire from the source reel onto the first lane of the first bobbin a first number of times in a first direction; fixing the first bobbin and the second bobbin to each other; winding the superconducting wire from the source reel onto the third lane of the second bobbin a second number of times in the first direction; separating the first bobbin and the second bobbin from each other; and winding the superconducting wire from the first lane of the first bobbin onto the fourth lane of the second bobbin a third number of times in a second direction which is different from the first direction while winding the superconducting wire from the third lane of the second bobbin onto the source reel the third number of times in the second direction.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 1, 2013
    Assignee: Industry-Academic Cooperation Foundation, Yonsel University
    Inventors: Tae Kuk Ko, Jae Sik Kang, Hyun Chul Jo, Suk Jin Choi, Jin Bae Na, Jae Young Jang, Young Jin Hwang, Hyung Jun Kim
  • Publication number: 20120286084
    Abstract: A bobbin for layer winding of superconducting wire and a layer winding method using the same are provided. The bobbin for layer winding of superconducting wire includes a cylindrical bobbin body on which the superconducting wire is wound, and a plurality of spacers having a fan-shaped periphery to guide the superconducting wire, wherein a plurality of layers are formed on the cylindrical bobbin body by the spacers.
    Type: Application
    Filed: May 26, 2011
    Publication date: November 15, 2012
    Inventors: TAE-KUK KO, Hyun-Chul Jo, Suk-Jin Choi, Jin-Bae Na, Jae-Young Jang, Young-Jin Hwang