Patents by Inventor Ali Hasan

Ali Hasan 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).

  • Publication number: 20030218416
    Abstract: The invention consists of a flat panel display device that combines the simplicity of manufacture of a TFEL display with the phosphor stimulation capabilities of an FED. A phosphor such a ZnS:Mn can act as both an EL phosphor and as a cathodoluminescent phosphor. The phosphor is deposited on a porous silicon underlayer that contains a labyrinth of fissures, voids, hillocks, and microscopically rough surfaces. At the phosphor-porous silicon interface, the labyrinthine surface possesses hundreds to thousands of electric field line compression points that can be characterized by an average field enhancement. When this underlayer is the cathode, high energy electrons are injected into the phosphor producing substantial light emission even at low applied fields. Additionally, the surrounding silicon is available to integrate drive circuitry and provide a TFT at each pixel, if needed.
    Type: Application
    Filed: April 16, 2003
    Publication date: November 27, 2003
    Inventors: Mohamed Ali Hasan, Deirdre Heyde Elqaq
  • Patent number: 6631300
    Abstract: A control system for reducing cargo pendulation. The control system calculates a correction factor and adds the correction factor for the operator input motions in addition to the motion of the platform in order to provide a reference position of the suspension point of the hoisting cable. The reference position is then provided to a tracking controller so that the crane can be forced to track the needed motions for reducing the cargo pendulation.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: October 7, 2003
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Ali Hasan Nayfeh, Dean Tritschler Mook, Ryan James Henry, Ziyad Nayif Masoud
  • Patent number: 6603257
    Abstract: The invention consists of a flat panel display device that combines the simplicity of manufacture of a TFEL display with the phosphor stimulation capabilities of an FED. A phosphor such a ZnS:Mn can act as both an EL phosphor and as a cathodoluminescent phosphor. The phosphor is deposited on a porous silicon underlayer that contains a labyrinth of fissures, voids, hillocks, and microscopically rough surfaces. At the phosphor-porous silicon interface, the labyrinthine surface possesses hundreds to thousands of electric field line compression points that can be characterized by an average field enhancement. When this underlayer is the cathode, high energy electrons are injected into the phosphor producing substantial light emission even at low applied fields. Additionally, the surrounding silicon is available to integrate drive circuitry and provide a TFT at each pixel, if needed.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: August 5, 2003
    Assignee: University of North Carolina at Charlotte
    Inventors: Mohamed Ali Hasan, Deirdre Heyde Elqaq