Patents by Inventor Naoko Kawazu

Naoko Kawazu 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 display device and method for producing the same
    Patent number: 5793454
    Abstract: The liquid crystal display device of this invention includes: a pair of substrates facing each other and a display medium sandwiched between the pair of substrates. In this liquid crystal display device, at least one of the pair of substrates is a flexible film having polarizer properties and the display medium includes a liquid crystal phase and a polymer phase.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: August 11, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Naoko Kawazu, Shinji Shimada
  • Method for driving an active matrix substrate
    Patent number: 5719590
    Abstract: A method for driving an active matrix substrate including a plurality of scanning electrode lines, a plurality of data electrode lines, and a plurality of pixel electrodes respectively connected to the scanning electrode lines and the data electrode lines via a ferroelectric material. According to the method, a data writing pulse having a first polarity is applied to a scanning electrode line selected from the plurality of scanning electrode lines in a selection period. A data writing prohibiting pulse having a level of 0 is applied to the selected scanning electrode line in a first period included in a non-selection period following the selection period. In the first period, a data writing pulse having the first polarity is applied to a scanning electrode line different from the selected scanning electrode line. A data writing prohibiting pulse having the first polarity is applied to the selected scanning electrode line in a second period included in the non-selection period.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: February 17, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinji Shimada, Naoko Kawazu
  • Liquid crystal display device and method for producing the same using photopolymerization with linearly polarized light
    Patent number: 5576856
    Abstract: The liquid crystal display device of this invention includes: a pair of substrates facing each other and a display medium sandwiched between the pair of substrates. In this liquid crystal display device, at least one of the pair of substrates is a flexible film having polarizer properties and the display medium includes a liquid crystal phase and a polymer phase.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: November 19, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Naoko Kawazu, Shinji Shimada