Patents Assigned to Nobatsu Watanabe
  • Fluorine compound--containing composite material and method for preparing same
    Patent number: 6045867
    Abstract: A fluorine compound-containing composite material consists essentially of a metal or polymer matrix and particles or fibers of a polytetrafluoroethylene oligomer having a number average molecular weight of 10,000 or less, the proportion of the number of fluorine atoms to the number of the total atoms at the surface portion of the composite material being 40% or more.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: April 4, 2000
    Assignees: Nobatsu Watanabe, Yong-Bo Chong, C. Uyemura & Co., Ltd.
    Inventors: Nobuatsu Watanabe, Yong-Bo Chong, Sowjun Matsumura