Patents by Inventor KOUICHI NAGAOKA

KOUICHI NAGAOKA 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).

  • Staple fiber non-woven fabric and process for producing the same
    Publication number: 20060030230
    Abstract: A staple fiber non-woven fabric is provided which comprises, as constituent fibers, first and second split staple fibers composed of first and second fiber formable polymers, respectively, and water-absorptive staple fibers. The first and second split staple fibers have a fineness of not greater than 0.5 denier per fiber. The first and second fiber formable polymers are different polymers selected from the group consisting of a polyamide, a polyester and a polyethylene which are incompatible with each other. The fiber split degree of the first and second split staple fibers is not lower than 85%. The constituent fibers are three-dimensionally entangled with each other.
    Type: Application
    Filed: October 11, 2005
    Publication date: February 9, 2006
    Applicant: Unitika Ltd.
    Inventors: Kouichi Nagaoka, Atsushi Matsunaga, Noriko Yoshida
  • Staple fiber non-woven fabric and process for producing the same
    Publication number: 20030139110
    Abstract: A staple fiber non-woven fabric is provided which comprises, as constituent fibers, first and second split staple fibers composed of first and second fiber formable polymers, respectively, and water-absorptive staple fibers. The first and second split staple fibers have a fineness of not greater than 0.5 denier per fiber. The first and second fiber formable polymers are different polymers selected from the group consisting of a polyamide, a polyester and a polyethylene which are incompatible with each other. The fiber split degree of the first and second split staple fibers is not lower than 85%. The constituent fibers are three-dimensionally entangled with each other.
    Type: Application
    Filed: February 24, 2003
    Publication date: July 24, 2003
    Inventors: Kouichi Nagaoka, Atsushi Matsunaga, Noriko Yoshida
  • STAPLE FIBER NON-WOVEN FABRIC AND PROCESS FOR PRODUCING THE SAME
    Publication number: 20020006502
    Abstract: A staple fiber non-woven fabric is provided which comprises, as constituent fibers, first and second split staple fibers composed of first and second fiber formable polymers, respectively, and water-absorptive staple fibers. The first and second split staple fibers have a fineness of not greater than 0.5 denier per fiber. The first and second fiber formable polymers are different polymers selected from the group consisting of a polyamide, a polyester and a polyethylene which are incompatible with each other. The fiber split degree of the first and second split staple fibers is not lower than 85%. The constituent fibers are three-dimensionally entangled with each other.
    Type: Application
    Filed: January 25, 1999
    Publication date: January 17, 2002
    Inventors: KOUICHI NAGAOKA, ATSUSHI MATSUNAGA, NORIKO YOSHIDA