Patents Assigned to Innovators AG
  • Metal master for producing optical discs
    Patent number: 6163523
    Abstract: Method for producing a press-form (a stamper) for shaping an information-carrying optical storage medium, wherein in a first step, tracks are burned into the covering layer-coated (5) surface (3) of a blank (1) by a laser beam (6) according to the information to be stored before the tracks (7) are filled with metal in an electroplating process in a further step of said method, wherein the blank (1) is made from a cut or stamped metal disc (2) whose surface (3) is ground and polished.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: December 19, 2000
    Assignee: Innovators AG
    Inventor: Harm Drecoll