Patents by Inventor Choong-Kee Song

Choong-Kee Song 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).

  • Variable width wheel assembly
    Patent number: 10239348
    Abstract: Provided is a tire including rims, beads each mounted so as to surround each of the rims, a side wall that is connected to the beads, a sub-tread that is formed on top of the side wall and is formed of a material having elasticity so as to have a changing curvature, and plural tread blocks that are arranged on the sub-tread such that the distances between the tread blocks change in accordance with the change in the curvature of the sub-tread.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: March 26, 2019
    Assignee: HANKOOK TIRE CO., LTD.
    Inventors: Yong Ho Cha, Seung Koo Kang, Yoon-Jin Choi, Choong-Kee Song
  • Tire
    Publication number: 20160200139
    Abstract: Provided is a tire including rims, beads each mounted so as to surround each of the rims, a side wall that is connected to the beads, a sub-tread that is formed on top of the side wall and is formed of a material having elasticity so as to have a changing curvature, and plural tread blocks that are arranged on the sub-tread such that the distances between the tread blocks change in accordance with the change in the curvature of the sub-tread.
    Type: Application
    Filed: December 30, 2015
    Publication date: July 14, 2016
    Inventors: Yong Ho Cha, Seung Koo Kang, Yoon-Jin Choi, Choong-Kee Song
  • AIRLESS TIRE
    Publication number: 20160193877
    Abstract: Provided is an airless tire which includes plural tread blocks that are arranged along the circumference, plural spokes that are connected respectively to the tread blocks in the inner circumference direction, and a hub axle that is disposed at the center of the circumference, is connected to the plural spokes, and has its length modified so that the distances between the tread blocks are regulated through the spokes.
    Type: Application
    Filed: December 29, 2015
    Publication date: July 7, 2016
    Inventors: Min Su Jang, Seung Koo Kang, Yoon-Jin Choi, Choong-Kee Song