Patents by Inventor Roberto Gonzalez

Roberto Gonzalez 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).

  • Refractory oxide hosts for a high power, broadly tunable laser with high quantum efficiency and method of making same
    Patent number: 4604225
    Abstract: Refractory oxide crystals having high-quantum efficiency and high thermal stability for use as broadly tunable laser host materials. The crystals are formed by removing hydrogen from a single crystal of the oxide material to a level below about 10.sup.12 protons per cm.sup.3 and subsequently thermochemically reducing the oxygen content of the crystal to form sufficient oxygen anion vacancies so that short-lived F.sup.+ luminescence is produced when the crystal is optically excited.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: August 5, 1986
    Assignee: The United States of America as represented by the Secretary of the Department of Energy
    Inventors: Yok Chen, Roberto Gonzalez
  • High-quantum efficiency, long-lived luminescing refractory oxides
    Patent number: 4427570
    Abstract: A crystal having a high-quantum efficiency and a long period of luminescence is formed of an oxide selected from the group consisting of magnesium oxide and calcium oxide and possessing a concentration ratio of H.sup.- ions to F centers in the range of about 0.05 to about 10.
    Type: Grant
    Filed: December 7, 1982
    Date of Patent: January 24, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Yok Chen, Roberto Gonzalez, Geoffrey P. Summers