Patents by Inventor Jin-Gun Jang

Jin-Gun Jang 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).

  • Plating method
    Patent number: 9321077
    Abstract: There is provided a method and apparatus for plating high strength steel such as advanced high strength steel (AHSS) after irradiating the high strength steel with at least one of laser light and plasma to remove Si/Mn/Al oxides from the surface of the high strength steel, modify the surface of the high strength steel, or make the surface of the high strength steel suitable for a post process such as a zinc plating process. For this, a plating method includes heating high strength steel; treating a surface of the high strength steel with plasma to remove at least one of a Mn oxide, an Al oxide, and an Si oxide formed on the surface of the high strength steel during the heating of the high strength steel; and plating the surface-treated high strength steel.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: April 26, 2016
    Assignee: POSCO
    Inventors: Hyun-Ju Jeong, Rho-Bum Park, Yeong-Seob Kueon, Hyeong-Jun Huh, Jin-Gun Jang
  • Plating Method and Zinc Plating Process
    Publication number: 20130288073
    Abstract: There is provided a method and apparatus for plating high strength steel such as advanced high strength steel (AHSS) after irradiating the high strength steel with at least one of laser light and plasma to remove Si/Mn/Al oxides from the surface of the high strength steel, modify the surface of the high strength steel, or make the surface of the high strength steel suitable for a post process such as a zinc plating process. For this, a plating method includes heating high strength steel; treating a surface of the high strength steel with plasma to remove at least one of a Mn oxide, an Al oxide, and an Si oxide formed on the surface of the high strength steel during the heating of the high strength steel; and plating the surface-treated high strength steel.
    Type: Application
    Filed: December 27, 2011
    Publication date: October 31, 2013
    Applicant: POSCO
    Inventors: Hyun-Ju Jeong, Rho-Bum Park, Yeong-Seob Kueon, Hyeong-Jun Huh, Jin-Gun Jang