Patents by Inventor Young-Whan Kang

Young-Whan Kang 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).

  • Manufacturing method of delayed hydride cracking resistant seamless pressure tube made of zirconium (Zr) alloy
    Patent number: 5681406
    Abstract: A method for manufacturing a delayed hydride cracking resistant zirconium ahoy (Zircaloy-2, Zircaloy-4, Zr-2.5% Nb, pure Zr, etc.) pressure tube includes the steps of making a seamless pressure tube having a diameter smaller than the final size by extrusion or drawing, and then expanding the tube at a temperature below 600.degree. C. by cross rolling.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: October 28, 1997
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Seong-Su Kim, Dae-Whan Kim, Joon-Wha Hong, Young-Whan Kang