Patents by Inventor Richard E. Eitel

Richard E. Eitel 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).

  • Perovskite materials for high temperature and high performance actuators and transducers
    Patent number: 6685849
    Abstract: The present invention is directed to a new family of high Curie temperature, morphotropic phase boundary systems, based on the perovskite solid solution having the general formula (1−x)BiMeO3-xPbTiO3, where Me is a suitably sized cation or combination of cations and x is a molar fraction. The perovskite systems of the present invention offer room temperature properties analogous to, and high temperature properties superior to, commercially available PZT compositions. The perovskite of this invention exhibits a MPB between the rhombohedral and tetragonal phases. Further dopant strategies may be used for property optimization of the perovskite systems.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: February 3, 2004
    Assignee: The Penn State Research Foundation
    Inventors: Richard E. Eitel, Seung-Eek Park, Clive A. Randall, Thomas R. Shrout
  • Perovskite materials for high temperature and high performance actuators and transducers
    Publication number: 20030031622
    Abstract: The present invention is directed to a new family of high Curie temperature, morphotropic phase boundary systems, based on the perovskite solid solution having the general formula (1−x)BiMeO3-xPbTiO3, where Me is a suitably sized cation or combination of cations and x is a molar fraction. The perovskite systems of the present invention offer room temperature properties analogous to, and high temperature properties superior to, commercially available PZT compositions. The perovskite of this invention exhibits a MPB between the rhombohedral and tetragonal phases. Further dopant strategies may be used for property optimization of the perovskite systems.
    Type: Application
    Filed: May 14, 2001
    Publication date: February 13, 2003
    Inventors: Richard E. Eitel, Seung-Eek Park, Clive A. Randall, Thomas R. Shrout