Patents by Inventor Kyuzo Namura

Kyuzo Namura 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).

  • Flame-resistant fiber and fiber molding using the same
    Patent number: 7235596
    Abstract: The object of the present invention is to provide a flame-resistant fiber which possesses low negative effects on the environment and humans, such as emission of hazardous substances, which displays excellent both flame and weather resistance, and which does not reduce spinnability and fiber strength, and is able to provide a fiber molding obtained from the fiber. A flame-resistant fiber comprising at least one type of phosphazene derivatives selected from cyclic phosphazene derivatives and linear phosphazene derivatives, a hindered amine derivative containing specific groups, and a thermoplastic resin, wherein the fiber contains 0.25-5.0 wt % of the phosphazene derivative and 0.025-3.0 wt % of the hindered amine derivative, and the fiber fineness is 0.01-100 dtex.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: June 26, 2007
    Assignees: Chisso Polypro Fiber Company Limited., Chisso Corporation
    Inventors: Yukinori Kataoka, Masaru Andoh, Kyuzo Namura
  • Flame-resistant fiber and fiber molding using the same
    Publication number: 20040225041
    Abstract: The object of the present invention is to provide a flame-resistant fiber which possesses low negative effects on the environment and humans, such as emission of hazardous substances, which displays excellent both flame and weather resistance, and which does not reduce spinnability and fiber strength, and is able to provide a fiber molding obtained from the fiber. A flame-resistant fiber comprising at least one type of phosphazene derivatives selected from cyclic phosphazene derivatives and linear phosphazene derivatives, a hindered amine derivative containing specific groups, and a thermoplastic resin, wherein the fiber contains 0.25-5.0 wt % of the phosphazene derivative and 0.025-3.0 wt % of the hindered amine derivative, and the fiber fineness is 0.01-100 dtex.
    Type: Application
    Filed: April 19, 2004
    Publication date: November 11, 2004
    Inventors: Yukinori Kataoka, Masaru Andoh, Kyuzo Namura