Patents by Inventor Narihisa Takeuchi

Narihisa Takeuchi 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 retardant treating agents, flame retardant treating process and flame retardant treated articles
    Patent number: 7005089
    Abstract: Flame retardant treating agents according to the invention comprise a phosphorus-based compound represented by the following formula (4): Flame retardant treated fibers can be obtained by immersion of polyester fiber woven fabrics and the like in a treatment solution containing the flame retardant treating agents and accomplishing heat treatment at a prescribed temperature. It is thereby possible to impart adequate flame retardance to polymer materials such as fibers and thermoplastic polymers even when used in small amounts, and provide flame retardant treating agents that contain no halogen compounds.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: February 28, 2006
    Assignee: Nicca Chemical Co., Ltd.
    Inventors: Narihisa Takeuchi, Keiichiro Sada, Toru Makino, Koji Midori
  • Flame retardant treating agents, flame retardant treating process and flame retardant treated articles
    Publication number: 20030193045
    Abstract: Flame retardant treating agents according to the invention comprise a phosphorus-based compound represented by the following formula (4): 1
    Type: Application
    Filed: August 22, 2002
    Publication date: October 16, 2003
    Applicant: NICCA CHEMICAL CO., LTD.
    Inventors: Narihisa Takeuchi, Keiichiro Sada, Toru Makino, Koji Midori