Patents by Inventor Ho-Souk Cho

Ho-Souk Cho 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: 9076566
    Abstract: Provided is a DC power cable including a conductor, an inner semiconductive layer, an insulation and an outer semiconductive layer. In particular, the inner semiconductive layer or the outer semiconductive layer may be formed from a semiconductive composition containing a polypropylene base resin or a low-density polyethylene base resin and carbon nano tubes; and the insulation may be formed from an insulation composition containing a polypropylene base resin or a low-density polyethylene base resin and inorganic nano particles. The resulting power cable may have improved properties such as volume resistivity, hot set, and so on, and excellent space charge reducing effect.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: July 7, 2015
    Assignee: LS Cable Ltd.
    Inventors: Yoon-Jin Kim, Jin-Ho Nam, Ho-Souk Cho, Young-Ho Park, Son Tung Ha
  • Patent number: 8648257
    Abstract: An insulation material composition for a direct current (DC) power cable and the DC power cable using the same are provided. A direct current (DC) power cable insulation material composition includes 0.5 to 5 parts by weight of surface-modified nano-sized cubic magnesium oxide, per 100 parts by weight of a polyethylene base resin.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: February 11, 2014
    Assignee: LS Cable & System Ltd.
    Inventors: Yoon-Jin Kim, Chang-Mo Ko, Jin-Ho Nam, Ho-Souk Cho, Young-Ho Park
  • Patent number: 8545731
    Abstract: A conductive paste containing silver nanoparticles and a conductive circuit board provided therewith are provided. The conductive paste containing silver nanoparticles includes 15 to 50 weight % of silver nanoparticles based on a total weight of the conductive paste, the silver nanoparticles having an average particle size of 1 to 100 nm; 0.1 to 2.5 weight % of carbon nanotubes based on the total weight of the conductive paste, the carbon nanotubes having an average diameter of 2 to 40 nm; 1 to 15 weight % of a binder based on the total weight of the conductive paste; and a solvent.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: October 1, 2013
    Assignee: LS Cable & System, Ltd
    Inventors: Yoon-Jin Kim, Chang-Mo Ko, Ho-Souk Cho
  • Patent number: 8481860
    Abstract: A conductive paste composition is provided. The conductive paste composition includes 20 to 70 weight % of silver nanoparticles having an average particle size of 1 nm to 250 nm based on a total weight of the conductive paste composition, and 0.01 to 2 weight % of silver-decorated carbon nanotubes based on the total weight of the conductive paste composition.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: July 9, 2013
    Assignee: LS Cable & System, Ltd
    Inventors: Yoon-Jin Kim, Chang-Mo Ko, Ho-Souk Cho
  • Publication number: 20120012362
    Abstract: Provided is a DC power cable including a conductor, an inner semiconductive layer, an insulation and an outer semiconductive layer. In particular, the inner semiconductive layer or the outer semiconductive layer may be formed from a semiconductive composition containing a polypropylene base resin or a low-density polyethylene base resin and carbon nano tubes; and the insulation may be formed from an insulation composition containing a polypropylene base resin or a low-density polyethylene base resin and inorganic nano particles. The resulting power cable may have improved properties such as volume resistivity, hot set, and so on, and excellent space charge reducing effect.
    Type: Application
    Filed: September 21, 2010
    Publication date: January 19, 2012
    Applicant: LS Cable Ltd.
    Inventors: Yoon-Jin KIM, Jin-Ho Nam, Ho-Souk Cho, Young-Ho Park, Son Tung Ha
  • Publication number: 20120000694
    Abstract: An insulation material composition for a direct current (DC) power cable and the DC power cable using the same are provided. A direct current (DC) power cable insulation material composition includes 0.5 to 5 parts by weight of surface-modified nano-sized cubic magnesium oxide, per 100 parts by weight of a polyethylene base resin.
    Type: Application
    Filed: September 9, 2011
    Publication date: January 5, 2012
    Applicant: LS CABLE & SYSTEM LTD.
    Inventors: Yoon-Jin Kim, Chang-Mo Ko, Jin-Ho Nam, Ho-Souk Cho, Young-Ho Park
  • Publication number: 20110260115
    Abstract: A conductive paste containing silver nanoparticles and a conductive circuit board provided therewith are provided. The conductive paste containing silver nanoparticles includes 15 to 50 weight % of silver nanoparticles based on a total weight of the conductive paste, the silver nanoparticles having an average particle size of 1 to 100 nm; 0.1 to 2.5 weight % of carbon nanotubes based on the total weight of the conductive paste, the carbon nanotubes having an average diameter of 2 to 40 nm; 1 to 15 weight % of a binder based on the total weight of the conductive paste; and a solvent.
    Type: Application
    Filed: June 7, 2011
    Publication date: October 27, 2011
    Applicant: LS CABLE & SYSTEM, LTD
    Inventors: Yoon-Jin Kim, Chang-Mo Ko, Ho-Souk Cho
  • Publication number: 20110247866
    Abstract: A conductive paste composition is provided. The conductive paste composition includes 20 to 70 weight % of silver nanoparticles having an average particle size of 1 nm to 250 nm based on a total weight of the conductive paste composition, and 0.01 to 2 weight % of silver-decorated carbon nanotubes based on the total weight of the conductive paste composition.
    Type: Application
    Filed: June 7, 2011
    Publication date: October 13, 2011
    Applicant: LS CABLE & SYSTEM, LTD
    Inventors: Yoon-Jin Kim, Chang-Mo Ko, Ho-Souk Cho