Patents by Inventor Dong Hyuk KWAK

Dong Hyuk 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).

  • THERMOPLASTIC POLYURETHANE COMPOSITION FOR INJECTION MOLDING AND A METHOD FOR MANUFACTURING THE SAME
    Publication number: 20240132652
    Abstract: The present disclosure relates to a thermoplastic polyurethane composition for injection molding and a method for manufacturing the same. Specifically, the thermoplastic polyurethane composition includes 0.5% by weight to 10.0% by weight of a sulfonate diol, 13% by weight to 60% by weight of an isocyanate, 30% by weight to 70% by weight of an ether-containing polyester polyol, and 5% by weight to 40% by weight of a chain extender.
    Type: Application
    Filed: April 17, 2023
    Publication date: April 25, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, DONGSUNG CHEMICAL Co., Ltd., HANWHA ADVANCED MATERIALS CORPORATION
    Inventors: Boo Youn An, In Soo Han, Sang Hyuk Lee, Jae Chan Lee, Hoon Jeong Kim, Gyu Min Lee, Sung Bok Kwak, Dong Ju Lee, Jae Yong Lee
  • Pre-tensioner for seat belt of vehicles
    Patent number: 10259425
    Abstract: A pre-tensioner for a safety belt of vehicles is provided. The pre-tensioner for a safety belt of a vehicle that is disposed in a side sill of the vehicle and that operates to pull the safety belt by pushing a piston into a tube by a high pressure gas of a gas generator using explosive power of gunpowder that is configured at one side of a bracket in a state in which the piston is connected to the safety belt through a wire within the tube including: internal and external weldnuts that are fixed to each one side of internal and external side surfaces of the side sill, wherein by penetrating the side sill in a vehicle width direction by forming a screw at an external circumference of both end portions of the tube, the both end portions are engaged with the internal and external weldnuts, respectively.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: April 16, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Inbum Lee, Dong Hyuk Kwak
  • PRE-TENSIONER FOR SEAT BELT OF VEHICLES
    Publication number: 20180281746
    Abstract: A pre-tensioner for a safety belt of vehicles is provided. The pre-tensioner for a safety belt of a vehicle that is disposed in a side sill of the vehicle and that operates to pull the safety belt by pushing a piston into a tube by a high pressure gas of a gas generator using explosive power of gunpowder that is configured at one side of a bracket in a state in which the piston is connected to the safety belt through a wire within the tube including: internal and external weldnuts that are fixed to each one side of internal and external side surfaces of the side sill, wherein by penetrating the side sill in a vehicle width direction by forming a screw at an external circumference of both end portions of the tube, the both end portions are engaged with the internal and external weldnuts, respectively.
    Type: Application
    Filed: July 27, 2017
    Publication date: October 4, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Inbum LEE, Dong Hyuk KWAK