Patents by Inventor Yukiyoshi Tsunoda

Yukiyoshi Tsunoda 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).

  • Electrode substrate for electro-optical device
    Patent number: 4938569
    Abstract: An electrode substrate for an electro-optical device such as a LC display or the else comprising a substrate, a color filter on the substrate and an electrically conductive coating organic film on the color filter.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: July 3, 1990
    Assignee: Seiko Instruments Inc.
    Inventors: Yukiyoshi Tsunoda, Tohru Sakai
  • Color liquid crystal display device having multicolor polarizers
    Patent number: 4610507
    Abstract: A liquid crystal display device comprising a first display of twisted-nematic (TN) or guesthost (GH) type in front of a second LCD of TN type in which a multicolor polarizer is provided on one cell substrate. The multicolor polarizer consists of two layers and multiple picture elements. The color polarizers of one layer of the multicolor polarizer have different wavelength regions and absorption axes perpendicular to the polarizer elements of the other layer.
    Type: Grant
    Filed: May 15, 1984
    Date of Patent: September 9, 1986
    Assignee: Seiko Instruments & Electronics Ltd.
    Inventors: Hitoshi Kamamori, Yukiyoshi Tsunoda, Mitsuru Suginoya, Yutaka Sano, Yumiko Terada