Patents by Inventor Isao Shinozuka

Isao Shinozuka 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).

  • Anti-corrosive agent for metals
    Patent number: 4073618
    Abstract: A method of inhibiting corrosion of metals comprising applying to a metal surface in an effective concentration a saturated aliphatic triamine of 9 carbon atoms having at each terminal position a primary amino group and being branched in the 4-position of the main chain Such specific triamines include 1,3,6-triaminomethylhexane and 1,2,3-triaminoethylpropane. Addition products and condensation products derived from these organic triamines are also effective. The present anti-corrosive agents show a remarkable rust preventive effect to metals even when used in a small amount and are non-toxic.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: February 14, 1978
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tsunesuke Doi, Hiroshi Komoto, Masazumi Chono, Akira Inoue, Kazuaki Saito, Isao Shinozuka
  • Anti-corrosive agent for metals
    Patent number: 4028055
    Abstract: A method of inhibiting corrosion of metals comprising applying to a metal surface in an effective concentration a saturated aliphatic triamine of 9 carbon atoms having at each terminal position a primary amino group and being branched in the 4-position of the main chain. Such specific triamines include 1,3,6-triaminomethylhexane and 1,2,3-triaminoethylpropane. Addition products and condensation products derived from these organic triamines are also effective. The present anti-corrosive agents show a remarkable rust preventive effect to metals even when used in a small amount and are non toxic.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: June 7, 1977
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tsunesuke Doi, Hiroshi Komoto, Masazumi Chono, Akira Inoue, Kazuaki Saito, Isao Shinozuka