Patents by Inventor Byoung Sun Park

Byoung Sun Park 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).

  • MICROPOROUS SEPARATION MEMBRANE COMPRISING POLYPROPYLENE RESIN
    Publication number: 20160056434
    Abstract: Provided is a microporous separation membrane using a polypropylene resin, and more specifically, a microporous polymer separation membrane produced using a polypropylene resin, of which, at 230° C. under 2.16 kg, the melt index is 0.5 to 10 g/10 min., the polydispersity index is 5 or more, and the stereoregularity (isotactic index) is 94% or more.
    Type: Application
    Filed: February 25, 2014
    Publication date: February 25, 2016
    Inventors: Dae Ho PARK, Do Hoon LEE, Byoung Sun PARK
  • Apparatus for operating parking brake
    Patent number: 7360631
    Abstract: An apparatus for operating a parking brake that can reduce an operation stroke. A connecting member has shoe insert grooves with brake shoes inserted into both sides thereof. A first operation lever has one end rotatably combined with one side face of the connecting member and contacts with one of the brake shoes. A second operation lever has one end combined with the other end of the first operation lever and the other end rotatably combined with the other side face of the connecting member and contacts with the other one of the brake shoes.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: April 22, 2008
    Assignee: Hyundai Motor Company
    Inventor: Byoung Sun Park