Patents by Inventor Robert J. Zeches

Robert J. Zeches 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).

  • Thin film bismuth iron oxides useful for piezoelectric devices
    Patent number: 9356224
    Abstract: The present invention provides for a composition comprising a thin film of BiFeO3 having a thickness ranging from 20 nm to 300 nm, a first electrode in contact with the BiFeO3 thin film, and a second electrode in contact with the BiFeO3 thin film; wherein the first and second electrodes are in electrical communication. The composition is free or essentially free of lead (Pb). The BFO thin film is has the piezoelectric property of changing its volume and/or shape when an electric field is applied to the BFO thin film.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: May 31, 2016
    Assignee: The Regents of the University of California
    Inventors: Robert J. Zeches, Lane W. Martin, Ramamoorthy Ramesh
  • Thin Film Bismuth Iron Oxides Useful for Piezoelectric Devices
    Publication number: 20110133601
    Abstract: The present invention provides for a composition comprising a thin film of BiFeO3 having a thickness ranging from 20 nm to 300 nm, a first electrode in contact with the BiFeO3 thin film, and a second electrode in contact with the BiFeO3 thin film; wherein the first and second electrodes are in electrical communication. The composition is free or essentially free of lead (Pb). The BFO thin film is has the piezoelectric property of changing its volume and/or shape when an electric field is applied to the BFO thin film.
    Type: Application
    Filed: October 29, 2010
    Publication date: June 9, 2011
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Robert J. Zeches, Lane W. Martin, Ramamoorthy Ramesh