Patents by Inventor Harriette Atkins

Harriette Atkins 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).

  • Liquid crystal composite and method of making
    Patent number: 5745198
    Abstract: A method is disclosed for making a liquid crystal composite in which droplets of a liquid crystal material are dispersed in a polymer matrix. At least one further material separates the liquid crystal material from the polymer matrix. This construction permits the polymer matrix to be selected on the basis of its environmental properties and the further material to be selected on the basis of its orientational interactions with liquid crystal material. Light valves made from such a composite exhibit improved electro-optical properties.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: April 28, 1998
    Assignee: Raychem Corporation
    Inventors: John Havens, Kathleen Di Zio, Anne Gonzales, Robert H. Reamey, Harriette Atkins, Jinlong Cheng
  • Method of making liquid crystal composite which has interfacial material disposed between liquid crystal and encapsulating medium
    Patent number: 5585947
    Abstract: A method is disclosed for making a liquid crystal composite in which droplets of a liquid crystal material are dispersed in a polymer matrix. At least one further material separates the liquid crystal material from the polymer matrix. This construction permits the polymer matrix to be selected on the basis of its environmental properties and the further material to be selected on the basis of its orientational interactions with liquid crystal material. Light valves made from such a composite exhibit improved electro-optical properties.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: December 17, 1996
    Assignee: Raychem Corporation
    Inventors: John Havens, Kathleen DiZio, Anne Gonzales, Robert H. Reamey, Harriette Atkins, Jinlong Cheng
  • Encapsulated liquid crystal structures, apparatus containing the same, and methods therefor
    Patent number: 5571448
    Abstract: A liquid crystal display is made from an encapsulated liquid crystal structure comprising a liquid crystal composition dispersed in a containment medium. Selected additives may be added to the encapsulated liquid crystal structure to improve performance characteristics such as the operating field, the hysteresis, and the voltage holding ratio.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: November 5, 1996
    Assignee: Raychem Corporation
    Inventors: Mark F. Wartenberg, Harriette Atkins, Robert H. Reamey, Laurence Welsh, James Strain, Janusz Wojtowicz, Wayne Montoya, Paul S. Drzaic, John Havens, Akira Tomita, Aldrich N. K. Lau
  • Encapsulated liquid crystal structures, apparatus containing the same, and methods therefor
    Patent number: 5484552
    Abstract: A liquid crystal display is made from an encapsulated liquid crystal structure comprising a liquid crystal composition dispersed in a containment medium. Selected additives may be added to the encapsulated liquid crystal structure to improve performance characteristics such as the operating field, the hysteresis, and the voltage holding ratio.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: January 16, 1996
    Assignee: Raychem Corporation
    Inventors: Mark F. Wartenberg, Harriette Atkins, Robert H. Reamey, Laurence Welsh, James Strain, Janusz Wojtowicz, Wayne Montoya, Paul S. Drzaic, John Havens, Akira Tomita, Aldrich N. K. Lau
  • Encapsulated liquid crystal structures, apparatus containing the same, and methods therefor
    Patent number: 5427713
    Abstract: A liquid crystal display is made from an encapsulated liquid crystal structure comprising a liquid crystal composition dispersed in a containment medium. Selected additives may be added to the encapsulated liquid crystal structure to improve performance characteristics such as the operating field, the hysteresis, and the voltage holding ratio.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: June 27, 1995
    Assignee: Raychem Corporation
    Inventors: Mark F. Wartenberg, Harriette Atkins, Robert H. Reamey, Laurence Welsh, James Strain, Janusz Wojtowicz, Wayne Montoya, Paul S. Drzaic, John Havens, Akira Tomita, Aldrich N. K. Lau
  • Method of making liquid crystal composite
    Patent number: 5405551
    Abstract: A method is described for making a liquid crystal composite in which droplets of a liquid crystal material dispersed in a matrix material. An encapsulating material at least partially separates the liquid crystal material from the matrix material. This construction permits the matrix material to be selected on the basis of its processing and environmental properties and the encapsulating material to be selected on the basis of its emulsifying ability and orientational interactions with liquid crystal material. Light valves made from such a composite exhibit improved electro-optical properties.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: April 11, 1995
    Assignee: Raychem Corporation
    Inventors: Robert H. Reamey, John Mazzanti, Mark Wartenberg, Gil Garza, John Havens, Anne Gonzales, Kathleen DiZio, Harriette Atkins, Kevin Malloy