Patents by Inventor Noriaki Miyaki

Noriaki Miyaki 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).

  • Process for producing perfluoropolymer, production apparatus and process for producing electrolyte membrane for polymer electrolyte fuel cells
    Patent number: 8236213
    Abstract: A process for producing a perfluoropolymer, the process including extruding a polymer obtained by polymerizing a perfluoromonomer to prepare strands, and bringing a gas comprising from 3 to 50 volume % of fluorine gas into contact with the strands; the process being conducted on an apparatus that includes an extruder for melting and extruding the polymer obtained by polymerizing a perfluoromonomer, a die having a plurality of pores for preparing the strands from the molten polymer extruded, and a fluorination tank for bringing the gas comprising from 3 to 50 volume % of fluorine gas into contact with the strands.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: August 7, 2012
    Assignee: Asahi Glass Company, Limited
    Inventors: Nobuyuki Kasahara, Noriaki Miyaki, Fusaaki Takeo, Satoshi Shiratori