Patents by Inventor Nak Sung Kim

Nak Sung Kim 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).

  • Publication number: 20240154131
    Abstract: Provided is a catalyst layer for fuel cell having improved heat-dissipating performance and durability. The catalyst layer for fuel cell according to the present invention is a catalyst layer for fuel cell comprising a first composite and a second composite, wherein the first composite includes: a supporting material, a catalyst including metal particles supported on the supporting material, and a first ionomer coated on the surface of the catalyst; the second composite includes a heat-dissipating material and a second ionomer, the second ionomer is not coated on the surface of the catalyst, and the first ionomer and the second ionomer are identical with or different from each other.
    Type: Application
    Filed: February 15, 2022
    Publication date: May 9, 2024
    Inventors: Jung Ho KIM, Jun Young KIM, Kah Young SONG, Nak Won KONG, Ju Sung LEE, Kyoung Sik NAM, Chan Mi PARK
  • Publication number: 20130005493
    Abstract: Provided is a swing ride that enable a rider to sit on a swing chair and tilt it back and forth to thereby perform a swing operation or a reciprocating motion alone by a mechanical design. The swing ride that can tilt a swing chair back and forth, includes: a pivot shaft that is pivotably coupled across the top of a pair of frames spaced from each other; perpendicular rods that are extended downwards from both sides of the pivot shaft, respectively; a swing chair that are pivotably mounted below the perpendicular rods; mounting plates that are further extended downwards from central portions of both sides of the swing chair, respectively, and on the lower ends of which the perpendicular rods are hinge-coupled, respectively; and a rear stopper and a front stopper that are protrudingly formed spaced from each other at each side of the swing chair, to thus make the swing chair stop by the perpendicular rods and to thereby make the swing chair swing back and forth.
    Type: Application
    Filed: January 28, 2010
    Publication date: January 3, 2013
    Inventor: Nak Sung Kim