Patents by Inventor Hisakazu Morino

Hisakazu Morino 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).

  • Electroplating of hot-galvanized steel sheet and continuous plating line therefor
    Patent number: 5236574
    Abstract: A continuous multi-layer plating line for steel sheet which includes a hot-galvanizing apparatus to form a galvanized coating and optionally to alloy the coating and an electroplating apparatus to form an electroplated coating on the galvanized coating. Between the hot-galvanizing apparatus and the electroplating apparatus, a post-galvanizing surface treatment apparatus effective for removing surface oxide contaminants and activating the surface of the galvanized coating is disposed and the galvanized steel sheet is treated thereby prior to electroplating. The post-galvanizing surface treatment may be carried out by applying an alkali solution or an acid which can dissolve aluminum oxide to the galvanized coating, by alkali electrolysis, by cathodic electrolysis, by cooling the galvanized steel sheet with an alkali solution, or by skin-pass rolling using an alkali solution or an acid which can dissolve aluminum oxide as a skin-pass roling liquid.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: August 17, 1993
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Kazuhide Oshima, Hisakazu Morino, Tomio Kondo, Yasuo Shimada, Tadashi Nonaka, Hiroshi Oishi, Yoshikazu Yamanaka, Yoshihiko Hoboh, Atsuhisa Yakawa