Patents by Inventor Toshishige Hamaguchi

Toshishige Hamaguchi 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: 6387506
    Abstract: A resin composition for paper-coating, which comprises (A) a cross-linked amine compound which is a reaction product of (a) an aliphatic amine, (b) a glycidyl compound having at least two glycidyl groups in the molecule and (c) a compound selected from &agr;,&bgr;-unsaturated carbonyl compounds, &agr;,&bgr;-unsaturated nitrile compounds and &agr;-halocarboxylic acid groups; and (B) at least one selected from a group consisting of (B1) non-polymer nonvolatile substances and (B2) polyhydric alcohols, is provided, and the resin composition for paper-coating can realize high quality of coated paper by being mixed with a pigment and an aqueous binder and being coated on paper, which does not cause generation of formaldehyde and which does not tend to produce disadvantages such as thickening and deterioration in flowing property, and for paper using the resin composition and a coated paper produced by using the coating composition are also provided.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: May 14, 2002
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Akira Kawamura, Akira Tanikawa, Toshiyuki Hasegawa, Yutaka Shibata, Toshishige Hamaguchi