Patents by Inventor Kikuo Takayama

Kikuo Takayama 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).

  • Pressure-sensitive adhesive composition
    Patent number: 4500683
    Abstract: A pressure-sensitive adhesive composition containing as a polymer component an addition-polymerization polymer of an acryl-based polymer having sticking properties at room temperature and one or more ethylenically unsaturated monomers capable of forming a homo- or co-polymer having a glass transition point of at least 273.degree. K.; the addition-polymerization polymer is prepared by polymerizing one or more ethylenically unsaturated monomers in the presence of the acryl-based polymer; the present pressure-sensitive adhesive composition has high adhesive strength and cohesive strength.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: February 19, 1985
    Assignee: Nitto Electric Industrial Co., Ltd.
    Inventors: Yutaka Hori, Makoto Sunakawa, Kikuo Takayama, Naoki Matsuoka, Yutaka Moroishi