Patents by Inventor Hirofumi Jyouhouji

Hirofumi Jyouhouji 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
    Patent number: 6391974
    Abstract: A pressure-sensitive adhesive comprising an olefin-based copolymer wherein (1) the olefin-based copolymer has a tensile strength at break measured according to JIS K 6251 of 2.0 MPa or less, and (2) the elongation at break EB(%) of a resin composition obtained in blending the olefin-based copolymer with a polypropylene-based resin having a 20° C. xylene-soluble component content of 20 wt % or less satisfies the following formula 1: S[2/6]≧−800, wherein S[2/6] represents the gradient of a primary straight line, and Pa represents the weight content proportion of the olefin-based copolymer contained in the resin composition.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: May 21, 2002
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Atsuko Ogawa, Tatsuo Sassa, Hirofumi Jyouhouji, Hidetake Hozumi