Patents by Inventor Hassan Memarian

Hassan Memarian 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: 6743488
    Abstract: A transparent electrically conductive device which includes an indium tin oxide film is improved by providing an indium tin oxide film which contains a graded stack of individual indium tin oxide layers wherein the atomic percent of tin in the layers can be individually selected. Each indium tin oxide layer of the film contains 1-99 atomic percent tin. Each layer is made by a physical vapor deposition process or by sputter coating. Preferably the film which contains a plurality of indium tin oxide layers is applied to a transparent flexible substrate such as a polymeric sheet. Optional primer layers, hardcoat layers and topcoat layers may be included in the device.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: June 1, 2004
    Assignee: CPFilms Inc.
    Inventors: Hassan Memarian, Hitesh Patel
  • Patent number: 6583935
    Abstract: Low reflective, flexible, transparent, laminates having a sheet of flexible plastic substrate, a conductive outer layer on one side of the sheet, and an anti-reflective stack of at least one pair of oxide layers on at least one of the sides of the sheet, adapted for use as touch panel membrane electrodes in screen interface displays. A preferred laminate includes a flexible, polyethylene terephthalate sheet substrate having on one side a outer conductive surface of indium tin oxide and on one or both sides an anti-reflective stack of oxide layers, e.g., a stack of a layer of silicon dioxide and a layer of indium tin oxide. Preferred laminates have at least 90% transmission and less than 2% reflection of visible light in the range of 460 to 700 nm and are especially useful as touch panel electrodes, e.g., on computer display screens.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: June 24, 2003
    Assignee: CPFilms Inc.
    Inventors: Mohtashim Saif, Andrew Wrzesinski, Hassan Memarian
  • Publication number: 20030035906
    Abstract: A transparent electrically conductive device which includes an indium tin oxide film is improved by providing an indium tin oxide film which contains a graded stack of individual indium tin oxide layers wherein the atomic percent of tin in the layers can be individually selected. Each indium tin oxide layer of the film contains 1-99 atomic percent tin. Each layer is made by a physical vapor deposition process or by sputter coating. Preferably the film which contains a plurality of indium tin oxide layers is applied to a transparent flexible substrate such as a polymeric sheet. Optional primer layers, hardcoat layers and topcoat layers may be included in the device.
    Type: Application
    Filed: May 9, 2001
    Publication date: February 20, 2003
    Inventors: Hassan Memarian, Hitesh Patel
  • Patent number: 6266193
    Abstract: An anti-reflective composite is provided having very high visible light transmission and negligible visible reflectance over 400 nm-800 nm wavelengths. The composite of the invention includes (a) a light transmissive substrate; (b) a hard coat deposited onto the substrate; (c) a thin carbon layer having an average thickness between about 2 Å and about 100 Å; and (d) a plurality of transparent oxide layer pairs deposited onto the thin carbon layer, each transparent oxide layer pair comprising (i) a first transparent oxide having a refractive index between about 1.65 and about 2.65 and an average thickness between about 100 Å and about 3200 Å and (ii) a second transparent oxide layer having a refractive index between about 1.2 and about 1.85, and an average thickness between about 100 Å and about 3200 Å. The composite can also include an intermediate oxide layer disposed between the thin carbon layer and the first transparent oxide layer.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: July 24, 2001
    Assignee: CPFilms Inc.
    Inventors: Mohtashim Saif, Hassan Memarian