Patents by Inventor Dimitris E. Ioannou

Dimitris E. Ioannou 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).

  • Patent number: 7989800
    Abstract: A nanowire field effect junction diode constructed on an insulating transparent substrate that allows form(s) of radiation such as visual light, ultraviolet radiation; or infrared radiation to pass. A nanowire is disposed on the insulating transparent substrate. An anode is connected to a first end of the nanowire and a cathode is connected to the second end of the nanowire. An oxide layer covers the nanowire. A first conducting gate is disposed on top of the oxide layer adjacent with a non-zero separation to the anode. A second conducting gate is disposed on top of the oxide layer adjacent with a non-zero separation to the cathode and adjacent with a non-zero separation the first conducting gate. A controllable PN junction may be dynamically formed along the nanowire channel by applying opposite gate voltages. Radiation striking the nanowire through the substrate creates a current the anode and cathode.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 2, 2011
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Qiliang Li, Dimitris E. Ioannou, Yang Yang, Xiaoxiao Zhu
  • Publication number: 20100090198
    Abstract: A nanowire field effect junction diode constructed on an insulating transparent substrate that allows form(s) of radiation such as visual light, ultraviolet radiation; or infrared radiation to pass. A nanowire is disposed on the insulating transparent substrate. An anode is connected to a first end of the nanowire and a cathode is connected to the second end of the nanowire. An oxide layer covers the nanowire. A first conducting gate is disposed on top of the oxide layer adjacent with a non-zero separation to the anode. A second conducting gate is disposed on top of the oxide layer adjacent with a non-zero separation to the cathode and adjacent with a non-zero separation the first conducting gate. A controllable PN junction may be dynamically formed along the nanowire channel by applying opposite gate voltages. Radiation striking the nanowire through the substrate creates a current the anode and cathode.
    Type: Application
    Filed: October 14, 2009
    Publication date: April 15, 2010
    Inventors: Qiliang Li, Dimitris E. Ioannou, Yang Yang, Xiaoxiao Zhu
  • Patent number: 7180135
    Abstract: Disclosed is a Silicon-On-Insulator (SOI) Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET) logic family composed of ratioed logic with intrinsically “on” symmetric fully depleted double-gate (DG) SOI MOSFET load(s) and asymmetric fully depleted double gate MOSFET driver(s).
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: February 20, 2007
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Dimitris E. Ioannou, Souvick Mitra, Akram Salman
  • Patent number: 5455791
    Abstract: A simple stacked gate Electrically Erasable Programmable Read Only Memory (EEPROM) device fabricated on Silicon-on-Insulator (SOI) substrates(films) and a method to erase data in such device as well as in any other EEPROM devices fabricated on SOI substrates(films) is described. The new EEPROM device incorporates two separate control gates, a front control gate and a back control gate. In the new erasing method the back control gate is used to operate back channel of the EEPROM device in the avalanche region and generate hot carriers subsequently injected into the floating gate. The new erasing method is applicable to either n-channel or p-channel, inversion, accumulation or depletion mode devices.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: October 3, 1995
    Inventors: Andrzei Zaleski, Dimitris E. Ioannou