Patents by Inventor Kyosuke Hori

Kyosuke Hori 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).

  • Composition and process for treating a zinciferous surface
    Patent number: 6071435
    Abstract: To inhibit the blackening of zinciferous metal-plated steel sheet while also generating a good corrosion resistance, fingerprint resistance, and chromium fixation ratio for the steel sheet, it is coated with an aqueous liquid composition that has a pH not exceeding 2.5 and contains hexavalent chromium ion, trivalent chromium ion, nickel ion, inorganic acid (preferably phosphoric acid), and film-forming resin, with a weight ratio between the nickel content and the total chromium content of 0.05 to 1, and the liquid coating is dried onto the treated metalsurface to form a blackening resistant coating that contains from 0.1 to 10 g/m.sup.2 resin and from 2 to 150 mg/m.sup.2 of total chromium.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: June 6, 2000
    Assignee: Henkel Corporation
    Inventors: Shinobu Komiyama, Kyosuke Hori, Kenji Aizawa