Patents by Inventor Doris S. Y. Leung

Doris S. Y. Leung 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).

  • Thermally stable electro-optic device and method
    Patent number: 5708178
    Abstract: Novel acceptor-donor-acceptor and donor-acceptor-donor compounds for use in forming a thermally-stable electro-optic waveguide are disclosed. Also disclosed is a thermally stable waveguide material containing thermally stable acceptor-donor-acceptor or donor-acceptor-donor guest dipole compounds in a temperature-resistant polymer matrix. The waveguide has selected regions in which the net dipoles of the guest molecules are oriented, for electro-optic switching when an electric field is placed across these regions.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: January 13, 1998
    Assignee: Lockheed Martin Corporation
    Inventors: Susan P. Ermer, Doris S. Y. Leung, Steven M. Lovejoy
  • Thermally stable electro-optic device and method
    Patent number: 5561733
    Abstract: Novel acceptor-donor-acceptor and donor-acceptor-donor compound for use in forming a thermally-stable electro-optic waveguide are disclosed. Also disclosed is a thermally stable waveguide material containing thermally stable acceptor-donor-acceptor or donor-acceptor-donor guest dipole compounds in a temperature-resistant polymer matrix. The waveguide has selected regions in which the net dipoles of the guest molecules are oriented, for electro-optic switching when an electric field is placed across these regions.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 1, 1996
    Assignee: Lockhead Missiles & Space Company, Inc.
    Inventors: Susan P. Ermer, Doris S. Y. Leung, Steven M. Lovejoy