Patents by Inventor Andy Kent

Andy Kent 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 of forming superconducting YBa.sub.2 Cu.sub.3 O.sub.7-x thin films with controlled crystal orientation
    Patent number: 5047385
    Abstract: A method of forming a superconducting YBa.sub.2 Cu.sub.3 O.sub.7-x thin film with selected crystal orientation is described which comprises the steps of sputtering simultaneously Y, Ba and Cu onto the surface of a substrate, introducing oxygen at said surface during deposition, controlling the stoichiometry of the elements Y, Ba or both richer or poorer than the 1:2:3 stoichiometry within a few atom percent and followed by annealing to selectively grow an a-axis or a c-axis oriented film of YBa.sub.2 Cu.sub.3 O.sub.7-x.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: September 10, 1991
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Malcolm R. Beasley, Kookrin Char, Theodore H. Geballe, Robert H. Hammond, Aharon Kapitulnik, Andy Kent, Michio Naito, Byungdu Oh