Patents Assigned to Kokoku Rubber Industry Company, Ltd.
  • Patent number: 4170524
    Abstract: Partial plating of a synthetic resin article is accomplished with a beautiful appearance and good adhesion of the plated coating regardless of the shape and size of the article or geometry of the intended coating by a method having the steps of (a) producing an article to be plated by uniting a first member, or members, of a conducting resin with a second member, or members, of a nonconducting resin such that the surface of the first member in the produced article is partially exposed and that the exposed portion of the surface alone gives a region, or regions, to be plated, (b) forming a metal coating exclusively on the exposed portion of the first member by chemical plating, and (c) effecting electroplating on the metal coating.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: October 9, 1979
    Assignees: Nissan Motor Company, Ltd., Kokoku Rubber Industry Company, Ltd.
    Inventors: Noriaki Nakajyo, Toshihiko Uchiyama