Patents by Inventor Kkochnim Oh

Kkochnim Oh 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).

  • PLATED STEEL SHEET FOR HOT PRESS FORMING, AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20240051005
    Abstract: A plated steel sheet for hot press forming with improved hydrogen delayed fracture properties is disclosed. The disclosed plated steel sheet includes a base steel sheet, and a plating layer formed on a surface of the base steel sheet and including, by weight, Si: 5.0 to 15.0%, Zn: 10.0 to 30.0%, Fe: 4.0 to 12.0%, and the remainder including Al and unavoidable impurities.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 15, 2024
    Applicant: POSCO Co., Ltd
    Inventors: Hyeon-seok Hwang, Kkochnim Oh
  • Systems and methods for producing anti-wetting structures on metallic surfaces
    Patent number: 10458037
    Abstract: An exemplary embodiment of the present invention provides a method for anti-wetting metallic surfaces. A metallic object is introduced to an electrochemical solution. A cathode is introduced to the electrochemical solution, and an anode is attached to the metallic object. An electric potential between the cathode and anode is applied, such that selective electrochemical etching of the surface of the metallic object occurs. The selective etching etches grain boundaries at the surface of the metallic object, and the grain boundaries define grain faces.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 29, 2019
    Assignee: Georgia Tech Research Corporation
    Inventors: Won Tae Choi, Laurens Victor Breedveld, Dennis W. Hess, Kkochnim Oh, Preet M. Singh
  • Systems and Methods for Producing Anti-Wetting Structures on Metallic Surfaces
    Publication number: 20170114472
    Abstract: An exemplary embodiment of the present invention provides a method for anti-wetting metallic surfaces. A metallic object is introduced to an electrochemical solution. A cathode is introduced to the electrochemical solution, and an anode is attached to the metallic object. An electric potential between the cathode and anode is applied, such that selective electrochemical etching of the surface of the metallic object occurs. The selective etching etches grain boundaries at the surface of the metallic object, and the grain boundaries define grain faces.
    Type: Application
    Filed: October 27, 2016
    Publication date: April 27, 2017
    Inventors: Won Tae Choi, Laurens Victor Breedveld, Dennis W. Hess, Kkochnim Oh, Preet M. Singh