Patents by Inventor Robert Guguelmetti

Robert Guguelmetti has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for printing on a portable data medium, particularly a smart card, and resulting printed data medium
    Patent number: 6107010
    Abstract: A method for printing on an exposed polymerised thermoplastic or curable layer of the body of a portable data medium, and a portable data medium particularly a chip card, comprising a polymerised layer, are disclosed. The method comprises the steps of mixing a polymerisable thermoplastic or curable binder and at least one light-sensitive compound responsive to laser radiation having a predetermined wavelength in such a way that it changes from a first state to a second coloured state, in order to form a mixture, exposing the mixture to the laser radiation having a predetermined wavelength; and polymerising the mixture to form the polymerised layer of the body of the data medium. The method is particularly suitable for printing on smart cards.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: August 22, 2000
    Assignee: Gemplus S.C.A.
    Inventors: Isabelle Corniglion, Armand Gellis, Robert Guguelmetti, Christian Leriche, Paul Morgavi, Andre Samat