Patents by Inventor Carla Cannas

Carla Cannas 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).

  • Sol-gel nanocoated particles for magnetic displays
    Patent number: 7130106
    Abstract: Magnetic display devices include low-density silica coated magnetic and nonmagnetic particles. In a one-particle system, low-density silica coated magnetic particles coated by a sol-gel process are used in combination with non-magnetic particles. In a two-particle system, low-density silica coated magnetic particles coated by a sol-gel process are used in combination with low-density silica coated non-magnetic particles. Display devices employing silica coated magnetic particles minimize the tendency of the magnetic particles to aggregate. Silica coated magnetic particles in a display device results in a magnetic display with improved image stability. Low-density silica coated magnetic particles in a display device allow for particles to move easily through a dispersion fluid in response to a magnetic field.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: October 31, 2006
    Assignee: Xerox Corporation
    Inventors: Carla Cannas, Peter M. Kazmaier, Gabriel Iftime
  • Sol-gel nanocoated particles for magnetic displays
    Publication number: 20060007526
    Abstract: Magnetic display devices include low-density silica coated magnetic and nonmagnetic particles. In a one-particle system, low-density silica coated magnetic particles coated by a sol-gel process are used in combination with non-magnetic particles. In a two-particle system, low-density silica coated magnetic particles coated by a sol-gel process are used in combination with low-density silica coated non-magnetic particles. Display devices employing silica coated magnetic particles minimize the tendency of the magnetic particles to aggregate. Silica coated magnetic particles in a display device results in a magnetic display with improved image stability. Low-density silica coated magnetic particles in a display device allow for particles to move easily through a dispersion fluid in response to a magnetic field.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 12, 2006
    Inventors: Carla Cannas, Peter Kazmaier, Gabriel Iftime