Patents by Inventor Daisuke Fujihara

Daisuke Fujihara 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).

  • Fluorinated terpolymer
    Patent number: 7009017
    Abstract: A fluorine-containing terpolymer with distinguished transparency and strength at ordinary temperature and at elevated temperatures when heated, which comprises 20–98% by weight of tetrafluoroethylene, 1–40% by weight of perfluoro(ethyl vinyl ether) and 1–40% by weight of perfluoro(propyl vinyl ether) and has a specific melt viscosity of 0.1×103–110×103 Pa·s (372° C.). The fluorine-containing terpolymer preferably has a comonomer ratio of perfluoro(propyl vinyl ether) to perfluoro(ethyl vinyl ether) of 1.0 or more by weight.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: March 7, 2006
    Assignee: Unimatec Co., Ltd.
    Inventors: Satoshi Kurihara, Daisuke Fujihara, Takashi Enokida
  • Fluorinated terpolymer
    Publication number: 20040214972
    Abstract: A fluorine-containing terpolymer with distinguished transparency and strength at ordinary temperature and at elevated temperatures when heated, which comprises 20-98% by weight of tetrafluoroethylene, 1-40% by weight of perfluoro(ethyl vinyl ether) and 1-40% by weight of perfluoro(propyl vinyl ether) and has a specific melt viscosity of 0.1×103-110×103 Pa·s (372° C.). The fluorine-containing terpolymer preferably has a comonomer ratio of perfluoro(propyl vinyl ether) to perfluoro(ethyl vinyl ether) of 1.0 or more by weight.
    Type: Application
    Filed: September 24, 2003
    Publication date: October 28, 2004
    Inventors: Satoshi Kurihara, Daisuke Fujihara, Takashi Enokida