Patents Assigned to LS Cable & System Ltd.
  • Patent number: 10749277
    Abstract: Provided is an intermediate connection system for an ultra-high-voltage direct-current (DC) power cable. Specifically, the present invention relates to an intermediate connection system, for an ultra-high-voltage DC power cable, which is capable of simultaneously preventing or minimizing electric field distortion, a decrease of DC dielectric strength, and a decrease of impulse breakdown strength due to the accumulation of space charges in an insulating layer of a cable and an insulating material of an intermediate connection part.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: August 18, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Soo Bong Lee, Eui Hwan Jung, Wook Jin Lee, Sung Pyo Hong, Seung Woo Cho
  • 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: 10672539
    Abstract: A power cable includes a conductor; an inner semi-conductive layer covering the conductor; an insulating layer covering the inner semi-conductive layer, the insulating layer being impregnated with an insulating oil; an outer semi-conductive layer covering the insulating layer; a metal sheath layer covering the outer semi-conductive layer; and a cable protection layer covering the metal sheath layer. The insulating layer is formed by cross-winding insulating paper and impregnating the insulating paper with the insulating oil. The inner semi-conductive layer and the outer semi-conductive layer are formed by cross-winding semi-conductive paper and impregnating the semi-conductive paper with the insulating oil. A thickness of the outer semi-conductive layer is 7.5 to 15% of a total thickness of the inner semi-conductive layer, the insulating layer, and the outer semi-conductive layer.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: June 2, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Ji Sung Kim, Weon Bae Kim, Kyoung Ro Ko, Su Kil Lee, Joon Keun Lee, Soon Il Sohn, Kum Hwan Cha, Jae Cheol Gwag, Tae Hyun Kim
  • Patent number: 10666027
    Abstract: The present invention relates to a pulling eye for a submarine cable, a method of installing the pulling eye for a submarine cable, and a submarine cable including the pulling eye.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: May 26, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventor: Kyoung Soo Kim
  • 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: 10573431
    Abstract: A communication cable includes a cable core including a plurality of pairs of wires, each of the pairs of wires being formed by spirally twisting two wires including conductors covered with an insulator, and an external jacket configured to cover an outer side of the cable core, where the external jacket includes a plurality of support arms to prevent contact between the cable core and an inner surface of the external jacket and to secure a separation space in a radial direction, the plurality of support arms being integrally formed with the external jacket, and each of the plurality of support arms including a connection part connected to the inner surface of the external jacket and a support part having an increased width at an end portion of the connection part to support the cable core, thereby enabling the communication cable to satisfy a standard of Cat.6A or higher.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 25, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Woo Kyoung Lee, Jung Jin Kim, Tae Seong Kim, Young Il Cho
  • Patent number: 10564375
    Abstract: An optical and electrical composite multimedia cable including: an optical unit including a plurality of optical fibers and an optical-fiber protective layer, the optical-fiber protective layer formed by filling gaps between the optical fibers with curable resin and covering outer sides of the optical fibers with the curable resin and then curing the curable resin; a plurality of conductor units each including a conductor and an insulator covering the conductor; and an outer jacket provided around the optical unit and the conductor units.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: February 18, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Man-Su Lee, Yu-Hyoung Lee, Young-Ho Jun, Tae-Kyung Yook
  • Patent number: 10497491
    Abstract: A halogen-free flame-retardant insulation composition including: halogen-free resin serving as base resin; and a flame-retardant agent. The halogen-free resin includes: first polyolefin resin having a melting point of 90 to 170° C.; and second polyolefin resin having a melting point of 50 to 80° C. Content of the flame-retardant agent is 100 to 200 parts by weight with respect to 100 parts by weight of the base resin, and an insulating sample formed of the insulation composition has an elongation rate of 125% or more.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: December 3, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Ik-Hyun Ryu, Jae-Ik Lee, Won-Suck Lee, Ji-Wook Shin, Tae-Hyun Lee
  • Patent number: 10475553
    Abstract: The present invention relates to a submarine cable having a bimetallic armor. In particular, the present invention relates to a submarine cable capable of effectively suppressing damage to and corrosion of an armor formed of different types of metals due to a local decrease in tensile strength thereof and capable of avoiding an increase in an external diameter of the cable, the structural instability of the cable, and damage to the cable during the manufacture and installation thereof.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: November 12, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Soon Chul Jung, Seon Tae Kim, Kum Hwan Cha, Jee Yong Park, Kyoung Soo Kim, Doo Yeon Kim, Seung Chol Lee, Ji Young Kim
  • Patent number: 10454317
    Abstract: A wireless power transmission device for wirelessly transmitting power to at least one wireless power reception device through a magnetic field, the wireless power transmission device including: a power transmission unit for generating a magnetic field, an impedance matching unit, and a control unit for controlling the impedance matching unit, the impedance matching unit including: a plurality of first circuits which include a capacitor or an inductor and are connected in series to the power transmission unit; a plurality of second circuits which include a capacitor or an inductor and are connected in parallel to the power transmission unit; a matching inductor which is connected in series to the second circuits; and a plurality of switches which are arranged in the first circuits and second circuits and open and close same.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 22, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Sung-Han You, Jae-Sun Lee, Young-Sun Kim, Jae-Hun Jung, Un-Kyu Park
  • Patent number: 10438716
    Abstract: Provided is an insulation composition having a low dielectric constant and a cable including an insulation layer formed of the insulation composition. More particularly, the present invention relates to an insulation composition for reducing a space charge to increase superimposed impulse breakdown strength when impulse voltages overlap during application of a direct-current (DC) voltage, having a low dielectric constant, and improving impulse breakdown strength, and a cable including an insulation layer formed of the insulation composition.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 8, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jin Ho Nam, Won Suck Lee, Ik Hyun Ryu, Yi Seul Yang, Hyun Jung Jung, Tae Hyun Lee
  • Patent number: 10438721
    Abstract: A shaped filler for accommodating and protecting the optical unit for a submarine cable (hybrid cable), which maintains a round shape of a whole cable with a plurality of core parts each having a round cross section, comprises: an optical-unit accommodation part configured to accommodate an optical unit in a direction toward a central art of the cable; a central chamber behind the optical-unit accommodation part; at least one side chamber provided between the optical-unit accommodation part and the central chamber to be symmetrical to each other.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 8, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Soon Chul Jung, Kum Hwan Cha, Kyoung Soo Kim, Doo Yeon Kim, Seung Chol Lee
  • Patent number: 10367267
    Abstract: A dual mode antenna including: an insulative sheet including a main surface and an opposite main surface; a loop-shaped wireless communication coil formed on the main surface of the insulative sheet; a wireless power transmission coil formed inside the loop-shaped wireless communication coil to be electrically disconnected from the loop-shaped wireless communication coil, and formed on the main surface of the insulative sheet, a pair of wireless communication coil connection terminals electrically connected to both ends of the loop-shaped wireless communication coil, respectively; a pair of wireless power transmission coil connection terminals electrically connected to both ends of the wireless power transmission coil, respectively; and a ferrite sheet formed to contact the opposite main surface of the insulative sheet.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: July 30, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Min Seok Han, Young Sun Kim, Sung Han You, Lae Hyuk Park, Un Kyu Park, Ji Hyung Lee
  • Publication number: 20190214162
    Abstract: The present invention relates to a communication cable capable of satisfying the communication cable standard of Cat. 6A or higher by minimizing interference between adjacent cables by a method of changing a structure of an external jacket without applying a metal shielding layer to cover each pair of wires or a whole cable core.
    Type: Application
    Filed: January 25, 2017
    Publication date: July 11, 2019
    Applicant: LS CABLE & SYSTEM LTD.
    Inventors: Woo Kyoung LEE, Jung Jin KIM, Tae Seong KIM, Young IL CHO
  • Patent number: 10262772
    Abstract: A filler and a multicore cable includes a plurality of core portions, which includes a conductor, and a protective layer that surrounds the core portions, the filler being provided between the core portions and the protective layer of the multicore cable, the filler being characterized by including: frame portions including a first frame portion and a second frame portion, which are rotated by predetermined angles towards both sides about the center portion thereof and then incised; and a support portion provided between the frame portions so as to connect the frame portions to each other.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 16, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventor: Kyoung Soo Kim
  • Patent number: 10263467
    Abstract: Provided is a wireless power antenna for wirelessly transmitting, receiving, or relaying power, the wireless power antenna comprising an insulating sheet and a wireless power coil including a split pattern unit including a plurality of patterns spaced from each other in at least a region thereof in a widthwise direction, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: April 16, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Sung-Hoon Moon, Heung-kyu Lee, Ji-Hyung Lee, Min-Seok Han, Lae-Hyuk Park, Young-Sun Kim, Un-Kyu Park, Sung-Han You
  • Patent number: 10224747
    Abstract: Provided is a wireless power antenna for wirelessly transmitting, receiving, or relaying power, the wireless power antenna comprising an insulating sheet and a wireless power coil including a split pattern unit including a plurality of patterns spaced from each other in at least a region thereof in a widthwise direction, wherein the split pattern unit is disposed on both a top surface and a bottom surface of the insulating sheet.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: March 5, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Sung-Hoon Moon, Heung-Kyu Lee, Ji-Hyung Lee, Min-Seok Han, Lae-Hyuk Park, Young-Sun Kim, Un-Kyu Park, Sung-Han You
  • Publication number: 20190067920
    Abstract: The present invention relates to a pulling eye for a submarine cable, a method of installing the pulling eye for a submarine cable, and a submarine cable including the pulling eye.
    Type: Application
    Filed: August 16, 2016
    Publication date: February 28, 2019
    Applicant: LS Cable & System Ltd.
    Inventor: Kyoung Soo KIM
  • Patent number: 10210967
    Abstract: The present invention relates to a power cable. More particularly, the present invention relates to a power cable which is, when compared to the existing power cables, lightweight and includes a watertight layer which improves a corrosion resistance and is effectively suppressed from being peeled since the interlayer adhesiveness thereof is maintained regardless of an externally physical impact and a temperature change.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: February 19, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Jae Ik Lee, Won Sang Yoo, Kwang Mo Kim, Sung Tae Kang, Tae Hyun Lee
  • Patent number: 10199143
    Abstract: A power cable includes an insulation layer, itself, having high dielectric strength. An electric field to be applied to the insulation layer is effectively buffered, degradation of the insulation layer can be prevented during a cable connection step such that the life of the power cable is extended and simultaneously, the thickness of the insulation layer is minimized such that an outer diameter of the cable is reduced, thereby enabling flexibility, ease of installation, workability and the like of the cable to be improved.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: February 5, 2019
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Kyoung-Ro Ko, Ju-Yeon Lee