Patents by Inventor Nagisa Takee

Nagisa Takee 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: 5429881
    Abstract: Surface-treated Al or Al alloy materials which excel in adhesive property, formability, weldability, phosphatability, paint adhesion, and post-painting corrosion resistance are provided by forming a coated layer containing Zn and Fe or one or more of Si oxides, Al oxides and Al hydroxides together therewith, on the surface of Al or Al alloy base. The surface-treated Al or Al alloy materials are useful as metallic material to be painted and used after press forming and other processing, spot or laser welding and phosphating, including panel materials for automobiles and other various vehicles, shells for housefold electrical apparatus, and building materials.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: July 4, 1995
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Masamichi Aono, Toshihiro Chikada, Souichi Hayashi, Asao Mochizuki, Hiroshi Sato, Kouki Ikeda, Jun Hisamoto, Nagisa Takee, Toshiki Ueda, Masao Takemoto, Hideo Fujimoto, Akihiro Tsuruno, Kikuo Toyose
  • Patent number: 5389453
    Abstract: An aluminum alloy material having a surface suitable for zinc phosphate processing prepared by a process comprising the steps of (1) cleaning the aluminum alloy surface, and (2) forming a composite film layer comprising Zn metal, Ni or Mn metal, and silicon oxide on the surface of the aluminum alloy.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: February 14, 1995
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Kikurou Toyose, Hideo Fujimoto, Akihiro Tsuruno, Masao Takemoto, Eiki Usui, Masahiro Kawaguchi, Kouki Ikeda, Jun Hisamoto, Nagisa Takee
  • Patent number: 5169726
    Abstract: The present invention discloses a surface treated material of excellent adhesion for painting layer, corrosion resistance after painting and press formability, containing, in a Zn or Fe series plating layer, a (meth)acrylic polymer having repeating units of a (meth)acrylic acid derivative in which a compound having an epoxy group is added to a chemical formula represented by: ##STR1## where X represents --NH-- or --O--, A represents C.sub.n H.sub.2n, n is 0 or a positive integer, R represents --H or --CH.sub.3, and R.sub.1, R.sub.2 which may be identical or different with each other represents H or alkyl group.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: December 8, 1992
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hiroshi Sato, Kouki Ikeda, Jun Hisamoto, Nagisa Takee