Patents by Inventor Encarnacion Grace Villora

Encarnacion Grace Villora 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 for controlling conductivity of ga2o3 single crystal
    Publication number: 20070166967
    Abstract: To provide a method of controlling a conductivity of a Ga2O3 system single crystal with which a conductive property of a ?-Ga2O3 system single crystal can be efficiently controlled. The light emitting element includes an n-type ?-Ga2O3 substrate, and an n-type ?-AlGaO3 cladding layer, an active layer, a p-type ?-AlGaO3 cladding layer and a p-type ?-Ga2O3 contact layer which are formed in order on the n-type ?-Ga2O3 substrate. A resistivity is controlled to fall within the range of 2.0×10?3 to 8×102 ?cm and a carrier concentration is controlled to fall within the range of 5.5 ×1015 to 2.0×1019/cm3 by changing a Si concentration within the range of 1×10?5 to 1 mol %.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 19, 2007
    Inventors: Noboru Ichinose, Kiyoshi Shimamura, Kazuo Aoki, Encarnacion Grace Villora