Patents by Inventor Masahiro Kishida

Masahiro Kishida 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: 5656147
    Abstract: When an anodized film is to be formed, one formation-voltage input point is used. An interconnecting ring for anodization is provided between the input point and a pattern to be anodized. The interconnecting ring is in contact with and encloses the pattern. Another interconnecting ring to which the formation-voltage input point is connected is provided around the interconnecting ring. In addition, two junction points are provided at vertically symmetric positions with respect to the pattern. The junction points are connected to the interconnecting ring. The junction points are connected to upper connection terminals and lower connection terminals of the pattern by respective thin-line groups including a plurality of thin lines. The formation voltages at respective input points at the upper connection terminals and the lower connection terminals of the pattern are made equal to each other.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: August 12, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihisa Ishimoto, Masahiro Kishida, Toshiyuki Yoshimizu
  • Patent number: 5654207
    Abstract: A two-terminal nonlinear device according to the present invention includes a lower electrode of a thin Ta film doped with nitrogen which is formed on a substrate, an anodized oxide film formed by anodizing a surface of the lower electrode, and an upper electrode of a metal thin film which is formed on the anodized oxide film, wherein the thin Ta film includes a structure in which first portions and second portions are alternately deposited, the first portions containing a different amount of nitrogen from that contained in the second portions.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: August 5, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Fukuyama, Masakazu Matoba, Yoshihisa Ishimoto, Masahiro Kishida, Toshiyuki Yoshimizu, Takeshi Seike
  • Patent number: 5568289
    Abstract: An LCD device includes a first substrate including a plurality of pixel electrodes arranged in a matrix, a plurality of signal wires formed of metal for supplying the plurality of pixel electrodes with an electric charge, and a plurality of two-terminal nonlinear devices for switching connection between the pixel electrodes and the signal wires into one of a conductive state and a non-conductive state; a second substrate located opposite to the first substrate and including a plurality of scanning electrodes arranged parallel to each other and crossing the signal wires; and a liquid crystal layer sandwiched between the first and the second substrates.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: October 22, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Kishida, Toshiyuki Yoshimizu, Takeshi Seike
  • Patent number: 5539549
    Abstract: An active matrix substrate according to the present invention comprises an insulating substrate; a pixel electrode formed on the insulating substrate; a signal line for supplying a signal charge to the pixel electrode; a two-terminal nonlinear device including a lower electrode formed on the insulating substrate, an insulator covering the lower electrode, and an upper electrode formed on the insulator, the device changing a current which flows through the insulator in accordance with a voltage applied to the lower electrode and the upper electrode; and an island portion for connecting the upper electrode to the pixel electrode, the island portion making ohmic contact with each of the upper electrode and the pixel electrode.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: July 23, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Kishida, Toshiyuki Yoshimizu, Toshiaki Fukuyama, Yoshihisa Ishimoto
  • Patent number: 5521731
    Abstract: The invention increases the aperture ratio of a reflective type liquid crystal display device and raises the display quality. First conductor layers are formed in a band on a surface of a substrate, and insulator layers are formed on the surface thereof. Second conductor layers are formed on the insulator layers. The first conductor layers, insulator layers, and second conductor layers are so-called MIM elements and the first conductor layers are also signal wirings. The second conductor layers are also reflectors and pixel electrodes. Such substrate is disposed on substrate on which band-shaped counter electrodes are formed through a liquid crystal layer containing dichroic pigment or a high molecular resin layer dispersing liquid crystal.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: May 28, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Fukuyama, Yoshihisa Ishimoto, Masahiro Kishida, Toshiyuki Yoshimizu
  • Patent number: 5442224
    Abstract: A two-terminal nonlinear device according to the present invention includes a lower electrode of a thin Ta film doped with nitrogen which is formed on a substrate, an anodized oxide film formed by anodizing a surface of the lower electrode, and an upper electrode of a metal thin film which is formed on the anodized oxide film, wherein the thin Ta film includes a structure in which first portions and second portions are alternately deposited, the first portions containing a different amount of nitrogen from that contained in the second portions.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: August 15, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiyuki Yoshimizu, Masahiro Kishida, Toshiaki Fukuyama, Yoshihisa Ishimoto, Takeshi Seike, Masakazu Matoba