Patents by Inventor Terence E. Mitchell

Terence E. Mitchell 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).

  • Lithium tantalate single-crystal and photo-functional device
    Patent number: 6211999
    Abstract: Provided are lithium tantalate single-crystal that requires a low voltage of not larger than 10 kV/mm for its ferroelectric polarization inversion and of which the polarization can be periodically inverted with accuracy even at such a low voltage, and a photo-functional device comprising the crystal. The crystal has a molar fraction of Li2O/(Ta2O5+Li2O) of falling between 0.492 and 0.50. The functional device can convert a laser ray being incident thereon or can be used as a physical memory.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: April 3, 2001
    Assignee: The Regents of the University of California
    Inventors: Venkatraman Gopalan, Terence E. Mitchell, Kenji Kitamura, Yasunori Furukawa