Patents by Inventor Il-Jo Kwak

Il-Jo Kwak 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).

  • Electrical transmission line
    Patent number: 8658902
    Abstract: An electrical transmission line for transmitting electricity is made of a composite material in which aluminum and a plurality of carbon nanotubes are combined, and a weight ratio of the carbon nanotubes to the aluminum is 0.5 to 3 wt %. The carbon nanotubes are oriented at an angle within 30° along a length direction of the electrical transmission line.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: February 25, 2014
    Assignee: LS Cable Ltd.
    Inventors: Jeong-Ik Kim, Sang-Gyum Kim, Il-Jo Kwak, Heung-Nam Han
  • ALUMINUM ALLOY CONDUCTOR CABLE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20110303435
    Abstract: Optimum compositional elements and contents (wt %) of an aluminum alloy conductor cable are newly established to enhance rigidity against vibration and electrical conductivity of the aluminum alloy conductor cable. Further, a process for the aluminum alloy conductor cable is presented to provide an aluminum alloy conductor cable having satisfactory tensile strength (mechanical strength) and electrical conductivity.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 15, 2011
    Applicant: LS CABLE LTD.
    Inventors: Jee Yong PARK, Sang Kyum KIM, Seung LEE, IL JO KWAK
  • ELECTRICAL TRANSMISSION LINE
    Publication number: 20110226509
    Abstract: An electrical transmission line for transmitting electricity is made of a composite material in which aluminum and a plurality of carbon nanotubes are combined, and a weight ratio of the carbon nanotubes to the aluminum is 0.5 to 3 wt %. The carbon nanotubes are oriented at an angle within 30° along a length direction of the electrical transmission line.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 22, 2011
    Inventors: Jeong-Ik KIM, Sang-Gyum Kim, Il-Jo Kwak, Heung-Nam Han