Patents by Inventor Hany M. Aziz

Hany M. 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).

  • Annealed organic light emitting devices and methods of annealing organic light emitting devices
    Patent number: 6743067
    Abstract: Organic light emitting devices includes a light emission region between a cathode and anode. The light emission region comprises an organic light emitting material. The organic light emitting devices are formed by annealing as-fabricated devices. The annealing improves the performance of the as-fabricated devices, by decreasing their operating voltage and increasing their energy conversion efficiency. Multiple organic light emitting devices can be annealed to make the properties of the devices more uniform relative to each other.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: June 1, 2004
    Assignee: Xerox Corporation
    Inventors: Hany M. Aziz, Zoran D. Popovic, Nan-Xing Hu
  • Annealed organic light emitting devices and method of annealing organic light emitting devices
    Patent number: 6734623
    Abstract: Organic light emitting devices includes a light emission region between a cathode and anode. The light emission region comprises an organic light emitting material. The organic light emitting devices are formed by annealing as-fabricated devices. The annealing improves the performance of the as-fabricated devices, by decreasing their operating voltage and increasing their energy conversion efficiency. Multiple organic light emitting devices can be annealed to make the properties of the devices more uniform relative to each other.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: May 11, 2004
    Assignee: Xerox Corporation
    Inventors: Hany M. Aziz, Zoran D. Popovic, Nan-Xing Hu
  • Annealed organic light emitting devices and methods of annealing organic light emitting devices
    Publication number: 20030132704
    Abstract: Organic light emitting devices includes a light emission region between a cathode and anode. The light emission region comprises an organic light emitting material. The organic light emitting devices are formed by annealing as-fabricated devices. The annealing improves the performance of the as-fabricated devices, by decreasing their operating voltage and increasing their energy conversion efficiency. Multiple organic light emitting devices can be annealed to make the properties of the devices more uniform relative to each other.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 17, 2003
    Applicant: Xerox Corporation
    Inventors: Hany M. Aziz, Zoran D. Popovic, Nan-Xing Hu
  • Organic light emitting devices including mixed region
    Patent number: 6392339
    Abstract: An organic light emitting device includes a mixed region composed of a mixture of a hole transport material and an electron transport material, one of which is an emitter. The organic light emitting device also includes at least one of a hole transport material region and an electron transport material region on the mixed region. An anode contacts the hole transport material region or the mixed region. A cathode contacts the electron transport material region or the mixed region. The hole transport material region and/or the electron transfer material region can be formed with a plurality of layers.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: May 21, 2002
    Assignee: Xerox Corporation
    Inventors: Hany M. Aziz, Zoran D. Popovic, Nan-Xing Hu, Ah-Mee Hor
  • Organic light emitting devices having improved performance
    Patent number: 6392250
    Abstract: An organic light emitting device includes a mixed region composed of a mixture of a hole transport material, an electron transport material and at least one dopant material. The hole transport material and/or the electron transport material can optionally be an emitter. The materials of the mixed region can be selected to provide various emission colors from the organic light emitting device. The organic light emitting device also includes at least one of a hole transport material region and an electron transport material region on the mixed region. The hole transport material region, the electron transfer material region, and/or the mixed region can be formed with a plurality of layers.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: May 21, 2002
    Assignee: Xerox Corporation
    Inventors: Hany M. Aziz, Zoran D. Popovic, Nan-Xing Hu