Patents by Inventor Yukinori Takaoka

Yukinori Takaoka 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).

  • Heat-fusible composite fiber and non-woven fabric produced from the same
    Patent number: 6156679
    Abstract: There is disclosed a heat-fusible composite fiber comprising a sheath component of a crystalline propylene copolymer resin having a low melting point and a core component of a crystalline polypropylene resin having a higher melting point, wherein said fiber has a resistance of incipient tension of 5 to 15 gf/D {44.1.times.10.sup.-3 to 132.4.times.10.sup.-3 N/dtex} and a heat shrinkage of 15 percent or less at 140.degree. C. over 5 minutes, as well as a non-woven fabric made of such a fiber.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: December 5, 2000
    Assignee: Chisso Corporation
    Inventors: Yukinori Takaoka, Mitsuru Kojima, Masayasu Suzuki