Patents by Inventor Shun Koibuchi

Shun Koibuchi 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).

  • Publication number: 20240101920
    Abstract: A steel sheet having a film containing an organic resin and a wax on at least one surface of the steel sheet, in which the organic resin is at least one of an acryl-based resin, an epoxy-based resin, a urethane-based resin, a phenol-based resin, a vinyl acetate-based resin, and a polyester-based resin, in which the wax is a polyolefin wax having a melting temperature of 120° C. or higher and 140° C. or lower and an average particle size of 3.0 ?m or less, in which a proportion of the wax in the film is 10 mass % or more, and in which a coating weight per side W (g/m2) of the film and an arithmetic average roughness Ra (?m) of the steel sheet satisfy relational expression (1) below. W?0.12×Ra2+0.
    Type: Application
    Filed: October 22, 2021
    Publication date: March 28, 2024
    Applicant: JFE Steel Corporation
    Inventors: Shinichi Furuya, Tomohiro Aoyama, Shun Koibuchi, Takeshi Matsuda