Patents by Inventor Mi Hye KO

Mi Hye KO 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).

  • Method of monitoring of resistance welding quality of nuclear fuel rod
    Patent number: 10357844
    Abstract: A method of monitoring in real time pressure resistance welding of a cladding tube and an end plug. The method includes: a first step of detecting welding information including voltage, current, and welding force in a process of pressure resistance welding of a cladding tube and an end plug; a second step of comparing static factors obtained by calculating effective values for the welding information with predetermined reference values, respectively; a third step of calculating dynamic factors for the welding information including the gradient of instantaneous welding force, when the reference values are satisfied in the second step; and a fourth step of determining whether there is defect or not in welding quality by comparing the dynamic factors.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: July 23, 2019
    Assignees: KEPCO NUCLEAR FUEL CO., LTD., MONITECH CO., LTD.
    Inventors: Tae Hyung Na, Dong Soo Hwang, Mi Hye Ko, Kyung Woo Choi
  • METHOD OF MONITORING OF RESISTANCE WELDING QUALITY OF NUCLEAR FUEL ROD
    Publication number: 20170291249
    Abstract: A method of monitoring in real time pressure resistance welding of a cladding tube and an end plug. The method includes: a first step of detecting welding information including voltage, current, and welding force in a process of pressure resistance welding of a cladding tube and an end plug; a second step of comparing static factors obtained by calculating effective values for the welding information with predetermined reference values, respectively; a third step of calculating dynamic factors for the welding information including the gradient of instantaneous welding force, when the reference values are satisfied in the second step; and a fourth step of determining whether there is defect or not in welding quality by comparing the dynamic factors.
    Type: Application
    Filed: October 20, 2016
    Publication date: October 12, 2017
    Applicants: KEPCO NUCLEAR FUEL CO., LTD., MONITECH CO., LTD.
    Inventors: Tae Hyung NA, Dong Soo HWANG, Mi Hye KO, Kyung Woo CHOI