Patents by Inventor Guillermo E. Villalobos

Guillermo E. Villalobos 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).

  • Magnesium aluminate transparent ceramic having low scattering and absorption loss
    Patent number: 7528086
    Abstract: A ceramic having at least about 90% by weight magnesium aluminate and having a bulk scattering and absorption loss of less than about 1/cm at any wavelength in a range of about 0.23 to about 5.3 microns or 0.2/cm at any wavelength in a range of about 0.27 to about 4.5 microns. A method of making a ceramic by providing a plurality of particles having a magnesium aluminate core and a fluoride salt coating; heating the particles in an oxidizing atmosphere to a temperature in the range of about 400° C. to about 750° C.; and sintering the particles to form a solid ceramic.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: May 5, 2009
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Guillermo E. Villalobos, Jasbinder S. Sanghera, Shyam Bayya, Ishwar D. Aggarwal