Patents by Inventor Sachiko Kuroishi

Sachiko Kuroishi 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).

  • Adjustment method for active-matrix type liquid crystal display device
    Patent number: 6313818
    Abstract: An adjustment method for active-matrix type liquid crystal display device adjusts the potential differences applied to liquid crystal layers in such a way that black images are displayed in one group of pixels with the same polarity of the potential difference during a single vertical scanning period while halftone images are displayed in another group of pixels with the same polarity of the potential difference during the single vertical scanning period.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: November 6, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Junji Kondo, Sachiko Kuroishi, Sakae Yoshida