Patents Represented by Attorney Ditthavong Moir & Steiner, P.C.
  • Patent number: 8201584
    Abstract: An object of the present invention is to provide an exhaust pipe that can lower the temperature of exhaust gases when the exhaust gases having a high temperature pass through the exhaust pipe. The exhaust pipe of the present invention, which allows exhaust gases to flow through the exhaust pipe, comprises a base that contains metal and has a cylindrical shape; and a surface-coating layer that contains a plurality of crystalline inorganic materials and an amorphous binder and is formed on the outer peripheral face of the base, wherein the plurality of crystalline inorganic materials are distributed in the surface-coating layer, in an accumulative manner in a thickness direction, and the amorphous binder has an average thickness of 20 ?m or less at a location nearer the outer peripheral face of the exhaust pipe than a location of the crystalline inorganic materials.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: June 19, 2012
    Assignees: Ibiden Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasutaka Ito, Jin Wakamatsu