Patents by Inventor Susan O. Ellmann

Susan O. Ellmann 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).

  • Four layered ribbon for electrothermal printing
    Patent number: 4400100
    Abstract: Four layer resistive ribbon transfer tapes for use in electrothermic printing devices are fabricated. The tapes are comprised of a substrate having a heat transferable ink on one of its surfaces, and on its opposing surface there is disposed a metal layer. Bonded to the metal layer is a resistive layer. This resistive layer is caused to be bonded to the metal layer by a layer of an alkoxysilane compound therebetween.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: August 23, 1983
    Assignee: International Business Machines Corp.
    Inventors: Ari Aviram, Susan O. Ellmann