Patents Assigned to Titan Kogo Kabushiki Kaisha
  • Patent number: 5853887
    Abstract: The improved white conductive powder comprises white inorganic pigment particles the surfaces of which are coated with an electrically conductive layer of a dual structure consisting of a lower tin dioxide sub-layer and an upper tin dioxide-containing indium oxide sub-layer. To produce the powder, the hydration product of tin is deposited uniformly on the surfaces of white inorganic particles and, subsequently, an overcoat of indium oxide hydrate containing 0.1-20 wt % of tin dioxide is formed, followed by a heat treatment that is conducted at 350.degree.-750.degree. C. in a non-oxidizing atmosphere.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: December 29, 1998
    Assignee: Titan Kogo Kabushiki Kaisha
    Inventors: Akihiro Yoshimoto, Toshihiro Yoshinaga, Shigeru Nagaoka, Masayasu Morishita