Patents by Inventor Benjamin Welber

Benjamin Welber 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).

  • Information storage by laser beam initiated reactions
    Patent number: 3959799
    Abstract: There is disclosed herein a relatively low-cost, high density postable storage medium which comprises adjacent thin layers of two or more materials which react upon heating to form a reaction product with optical, magnetic or electrical properties different from the corresponding properties of the reactant materials. Thus, utilizing reactant layers such as aluminum and selenium, the heating results in a reaction product of Al.sub.2 Se.sub.3. The heating agent is notably a laser beam.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: May 25, 1976
    Assignee: International Business Machines Corporation
    Inventors: Richard J. Gambino, Frederic Holtzberg, Ralph R. Ruf, Benjamin Welber