Patents by Inventor Kohhei HAYAKAWA

Kohhei HAYAKAWA 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).

  • Cooling device for hot-dip plated steel sheet
    Patent number: 10501838
    Abstract: The present invention provides a cooling device for a hot-dip plating device provided on an upper side of a plating thickness control device in a conveyance route of a hot-dip plated steel sheet that is conveyed from a plating bath in a vertically upward direction. The cooling device includes: a main cooling device that vertically sprays a main cooling gas to the hot-dip plated steel sheet; and a preliminary cooling device that is provided in a preliminary cooling section between the main cooling device and the plating thickness control device in the conveyance route, and sprays a preliminary cooling gas to a plurality of gas collision positions which are set along the preliminary cooling section.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: December 10, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tooru Oohashi, Kazuki Machida, Hiroshi Nakata, Katsuya Kojima, Kohhei Hayakawa
  • COOLING DEVICE FOR HOT-DIP PLATED STEEL SHEET
    Publication number: 20170275746
    Abstract: The present invention provides a cooling device for a hot-dip plating device provided on an upper side of a plating thickness control device in a conveyance route of a hot-dip plated steel sheet that is conveyed from a plating bath in a vertically upward direction. The cooling device includes: a main cooling device that vertically sprays a main cooling gas to the hot-dip plated steel sheet; and a preliminary cooling device that is provided in a preliminary cooling section between the main cooling device and the plating thickness control device in the conveyance route, and sprays a preliminary cooling gas to a plurality of gas collision positions which are set along the preliminary cooling section.
    Type: Application
    Filed: October 24, 2014
    Publication date: September 28, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Tooru OOHASHI, Kazuki MACHIDA, Hiroshi NAKATA, Katsuya KOJIMA, Kohhei HAYAKAWA