Patents by Inventor Massayuki Tsuji

Massayuki Tsuji 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).

  • Ptfe powder and method of producing ptfe powder for molding
    Publication number: 20050010007
    Abstract: This invention provides a polytetrafluoroethylene powder capable of giving moldings which are improved in surface roughness Ra, tensile strength and/or tensile elongation as compared with the prior art ones and can be excellent in dielectric breakdown strength and, further, can be excellent, if desired, in apparent density and/or powder flowability as well, and a method of producing a polytetrafluoroethylene molding powder. The present invention is a PTFE powder wherein a surface roughness Ra of molded articles a1 for measurement is less than 0.92 ?m.
    Type: Application
    Filed: October 24, 2002
    Publication date: January 13, 2005
    Inventors: Massayuki Tsuji, Michio Asano, Masamichi Sukegawa