Patents by Inventor Toyoki Higuchi

Toyoki Higuchi 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).

  • Patent number: 5646705
    Abstract: In a liquid crystal display device according to the invention, one of electrodes holding a liquid crystal composition therebetween is formed by a shading conductor having light-transmitting holes or slits. The display device of the invention can reduce a required amount of indium (In), a rare metal, and can have a high light transmittance.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: July 8, 1997
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toyoki Higuchi, Hideo Kawano, Makoto Shibusawa
  • Patent number: 5028916
    Abstract: In a thin-type liquid crystal display device of this invention, a display section is formed on a printed circuit board and has a matrix array of display cells, address lines connected to the row arrays of the display cells and data lines connected to the column arrays of the disply cells. Row and column switching selectors are provided on the printed circuit board. The respective selectors include a parallel array of switches, such as TFTs. The row selector is connected to the address lines for sequentially selecting address lines through a scanning operation for image display. The column selector is connected to the data line for subjecting an incoming frame of image data to a time-division multiplexing and for sequentially supplying block-segmented image data components to the data lines.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 2, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Osamu Ichikawa, Toyoki Higuchi
  • Patent number: 4594528
    Abstract: A thin film electroluminescence device which comprises a pair of electrodes, at least one of which is transparent, and a light-emitting layer consisting essentially of oxygen-containing amorphous hydrogenated silicon carbide and being interposed between said paired electrodes.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: June 10, 1986
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Yoshito Kawakyu, Toyoki Higuchi, Hiroshi Ito