Patents by Inventor Osamu Yanabu

Osamu Yanabu 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).

  • Patent number: 4248676
    Abstract: This invention relates to the surface treatment of steel plates or sheets and discloses a novel steel sheet structure, wherein the steel sheet is first electrolytically surface coated with a metallic chromium layer of a thickness not exceeding about 0.1 micron and is then electrolytically plated with a chromate film of a thickness not exceeding 0.1 mg/dm.sup.2. The chromium layer thickness should preferably not be less than 0.0016 micron. The inventive steel sheet constitutes a superior can stock and may be provided with a top coat of organic composition.The invention also discloses a two-step process for producing the sheet. Pursuant to this process the metallic chromium layer is first electrolytically deposited on the steel sheet surface, whereupon the chromate film is electrolytically deposited on the metallic chromium layer.
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: February 3, 1981
    Assignee: Nippon Steel Corporation
    Inventors: Hiromu Uchida, Osamu Yanabu