Patents by Inventor Choongkwon Park

Choongkwon 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).

  • Cermet having improved toughness and method for manufacturing the same
    Patent number: 11377716
    Abstract: Provided is a cermet having improved toughness, the cermet including particles each of which has a complete solid-solution carbide of two or more metals selected, including titanium, from among Group IVa, Va, and VIa metals in the periodic table and has a core/rim structure composed of a core region and a rim region, and a binder composed of a metal, wherein the composition of the Group VIa metal in the core region is lower than the composition in the rim region, and the lattice constant in the rim region is larger than that in the core region.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 5, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Shinhoo Kang, Heung Nam Han, Choongkwon Park, Nojun Kwak
  • CERMET HAVING IMPROVED TOUGHNESS AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20200140977
    Abstract: Provided is a cermet having improved toughness, the cermet including particles each of which has a complete solid-solution carbide of two or more metals selected, including titanium, from among Group IVa, Va, and VIa metals in the periodic table and has a core/rim structure composed of a core region and a rim region, and a binder composed of a metal, wherein the composition of the Group VIa metal in the core region is lower than the composition in the rim region, and the lattice constant in the rim region is larger than that in the core region.
    Type: Application
    Filed: March 19, 2019
    Publication date: May 7, 2020
    Inventors: Shinhoo Kang, Heung Nam Han, Choongkwon Park, Nojun Kwak