Patents by Inventor Sawsan Aziz

Sawsan Aziz 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).

  • Metal silicate halide phosphors and LED lighting devices using the same
    Patent number: 8906262
    Abstract: The present invention relates to certain metal silicate halide (halosilicate) phosphors, the phosphors with an oxide coating, methods of making the phosphors, and light emitting diode- (LED-) based lighting devices modified with the phosphors.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: December 9, 2014
    Assignee: Lightscape Materials, Inc.
    Inventors: Yongchi Tian, Perry Niel Yocom, Sawsan Aziz, Olga Zakharov, Alison Sides
  • Metal silicate halide phosphors and LED lighting devices using the same
    Publication number: 20070125982
    Abstract: The present invention relates to certain metal silicate halide (halosilicate) phosphors, the phosphors with an oxide coating, methods of making the phosphors, and light emitting diode- (LED-) based lighting devices modified with the phosphors.
    Type: Application
    Filed: September 27, 2006
    Publication date: June 7, 2007
    Inventors: Yongchi Tian, Perry Yocom, Sawsan Aziz, Olga Zakharov, Alison Sides
  • Indium-substituted aluminate phosphor and method for making the same
    Patent number: 6190577
    Abstract: A phosphor containing O, Al, In, at least one element M selected from a group consisting of Sr, Ca and Ba, and Eu, as an activator, where the M, the Al, the In and the Eu are present in an atomic ratio M:Al:In:Eu of m:2n(1−y):2n(y):a, 0.3<m/n≦2, 0≦y≦0.2, and 1×10−5≦a≦1×10−1, exhibits excellent luminance, afterglow and durability. Also a phosphor containing O, Al, In, B, at least one element M selected from a group consisting of Sr, Ca and Ba, and Eu2+ as an activator, where the M, the Al, the In, the B and the Eu are present in an atomic ratio M:Al:In:B:Eu of m:2n(1−y−z):2n(y−z):2n(z):a, 0.3≦m/n≦2, 0<y≦0.2, 0<z≦0.05, and 1×10−5≦a≦1×10−1 exhibits excellent luminance, afterglow and durability.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: February 20, 2001
    Assignee: USR Optonix Inc.
    Inventors: Takashi Hase, Sawsan Aziz