Patents by Inventor Chan Sic YUNE

Chan Sic YUNE 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).

  • Zinc coating-forming method for drawing of metallic pipes
    Patent number: 10577702
    Abstract: The present invention provides a zinc coating-forming method for drawing of metallic pipes, including a degreasing step of degreasing a material to be drawn, which is composed of any one of aluminum, an aluminum alloy, copper, and a copper alloy; a first oxidation step of forming an oxide coating on a surface of the material to be drawn, which has been degreased in the degreasing step; and a second oxidation step of forming a zinc coating on the material to be drawn, which has been coated with an oxide.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: March 3, 2020
    Assignee: HAN SUNG MINUTENESS STEEL PIPE CO., LTD.
    Inventor: Chan Sic Yune
  • ZINC COATING-FORMING METHOD FOR DRAWING OF METALLIC PIPES
    Publication number: 20180127889
    Abstract: The present invention provides a zinc coating-forming method for drawing of metallic pipes, including a degreasing step of degreasing a material to be drawn, which is composed of any one of aluminum, an aluminum alloy, copper, and a copper alloy; a first oxidation step of forming an oxide coating on a surface of the material to be drawn, which has been degreased in the degreasing step; and a second oxidation step of forming a zinc coating on the material to be drawn, which has been coated with an oxide.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 10, 2018
    Applicant: HAN SUNG MINUTENESS STEEL PIPE CO.,LTD.
    Inventor: Chan Sic YUNE