Patents by Inventor Kunihiro Fukui

Kunihiro Fukui 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).

  • Production of one-side electroplated steel sheet
    Patent number: 4464232
    Abstract: A process for producing one-side electroplated steel sheet with the non-electroplating side having a high affinity for chemical conversion treatment is disclosed. The process comprises preparing a one-side electroplated steel sheet by applying a cathodic current thereto in an acidic plating bath simultaneously while slightly electroplating the non-electroplating surface thereof with a coating weight of 0.5 to 5 g/m.sup.2 by applying a cathodic current through said non-electroplating surface, and then applying electrolysis to said non-electroplating surface by passing an anodic current through said non-electroplating surface to thoroughly remove said electrodeposition on said non-electroplating surface.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: August 7, 1984
    Assignee: Sumitomo Metal Industries, Lt.
    Inventors: Shigeru Wakano, Akito Sakoda, Kunihiro Fukui, Minoru Nishihara