Patents by Inventor Kiyoshi Ishiba

Kiyoshi Ishiba 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: 6703121
    Abstract: Provided is an adhesive sheet for a precision electronic member which generates less amount of gas under high temperature atmosphere and which is suited as a low polluting adhesive sheet for a precision electronic member. The adhesive sheet for a precision electronic member has an adhesive layer comprising an acrylic copolymer obtained by copolymerizing a monomer mixture which comprises alkyl (meth)acrylate having 4 or less carbon atoms in an alkyl group and vinyl acetate in a proportion of 50:50 to 99.5:0.5 in terms of a weight ratio and in which a total content thereof is 80% by weight or more, wherein an amount of gas generated in heating at a temperature of 120° C. for 10 minutes is 1.0 &mgr;g/cm2 or less in terms of a n-decane amount.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: March 9, 2004
    Assignee: Lintec Corporation
    Inventors: Hiroaki Iwabuchi, Kiyoshi Ishiba, Tatsuya Tsukida
  • Publication number: 20020187343
    Abstract: Provided is an adhesive sheet for a precision electronic member which generates less amount of gas under high temperature atmosphere and which is suited as a low polluting adhesive sheet for a precision electronic member. The adhesive sheet for a precision electronic member has an adhesive layer comprising an acrylic copolymer obtained by copolymerizing a monomer mixture which comprises alkyl (meth) acrylate having 4 or less carbon atoms in an alkyl group and vinyl acetate in a proportion of 50:50 to 99.5:0.5 in terms of a weight ratio and in which a total content thereof is 80% by weight or more, wherein an amount of gas generated in heating at a temperature of 120° C. for 10 minutes is 1.0 &mgr;g/cm2 or less in terms of a n-decane amount.
    Type: Application
    Filed: April 5, 2002
    Publication date: December 12, 2002
    Applicant: LINTEC CORPORATION
    Inventors: Hiroaki Iwabuchi, Kiyoshi Ishiba, Tatsuya Tsukida