Patents Assigned to Nickel Rainbow Ltd.
  • Patent number: 6420053
    Abstract: An article includes a bi-colored metallic coating electrodeposited directly on a metallic cathode, such that a planar surface of the coating exhibits a visual first color when viewed from a first angle to the surface and a visual second and different color when viewed at a second angle to the surface. The electrode position is carried out from a bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−+Zn(II))− containing ions, wherein the parameters ionic concentration, pH, bath temperature current density and current quantity are so selected that a bi-colored coating is obtained, provided that a current density is applied to the underplate as cathode within the range of 0.005 to 0.5 A/dm2.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: July 16, 2002
    Assignee: Nickel Rainbow Ltd.
    Inventor: Leonid Levinson