Patents by Inventor Ik-jun CHOI

Ik-jun CHOI 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: 11560063
    Abstract: A charging connector control system may include a charging control unit of a charging equipment for supplying a control signal for charging; and a vehicle control unit for changing a sensing control signal to a normal control signal by executing a variable resistor control according to whether the sensing control signal, which is generated by sensing the control signal transmitted through a charging connector for connecting the charging equipment and a vehicle, is normal.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: January 24, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Kyu-Beom Ko, Ik-Jun Choi
  • Publication number: 20200189408
    Abstract: A charging connector control system may include a charging control unit of a charging equipment for supplying a control signal for charging; and a vehicle control unit for changing a sensing control signal to a normal control signal by executing a variable resistor control according to whether the sensing control signal, which is generated by sensing the control signal transmitted through a charging connector for connecting the charging equipment and a vehicle, is normal.
    Type: Application
    Filed: November 15, 2019
    Publication date: June 18, 2020
    Inventors: Kyu-Beom KO, Ik-Jun CHOI
  • Publication number: 20070232759
    Abstract: The present invention relates to a graft copolymer and a method for preparing the same, and more precisely a graft copolymer prepared by the steps of preparing a living activator with a single monomer and a block copolymer of a vinyl aromatic hydrocarbon or a conjugated diene hydrocarbon; and then grafting the prepared living activator to polyolefin polymer, and a method for preparing the same. According to the method of the present invention, the individual vinyl aromatic hydrocarbon or conjugated diene hydrocarbon polymers, and a block copolymer thereof, can be grafted onto chlorinated polyolefin polymer as a branch by using a living activator, and the resultant graft copolymer can be widely applied to various high molecular additives, compatabilizers, waterproof sheets and asphalt, etc.
    Type: Application
    Filed: October 5, 2006
    Publication date: October 4, 2007
    Applicant: LG CHEM, LTD.
    Inventors: Moon-seok CHUN, Jin-woo LEE, Choon-hwa LEE, Ik-jun CHOI