Patents by Inventor Masakazu Matoba

Masakazu Matoba 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 including identical shape dummy wire surrounding each pixel and capable of reducing the influence of parasitic capacities
    Patent number: 6608655
    Abstract: A dummy wire is provided on the outside of pixel electrodes disposed on the right end so as to apply the same amount of parasitic capacity as a neighboring signal wire applies. Further, on the outside of the pixel electrodes disposed on the upper or lower end, another dummy wire is provided so as to apply the same amount of parasitic capacity as a neighboring pixel electrode applies. With this arrangement, with regard to a liquid crystal display device with a matrix driving system, it is possible to provide the liquid crystal display device which reduces the influence caused by a difference in parasitic capacity so that an even display can be realized.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: August 19, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masakazu Matoba, Yohsuke Fujikawa
  • Liquid crystal display device capable of reducing the influence of parasitic capacities
    Publication number: 20020033924
    Abstract: A dummy wire is provided on the outside of pixel electrodes disposed on the right end so as to apply the same amount of parasitic capacity as a neighboring signal wire applies. Further, on the outside of the pixel electrodes disposed on the upper or lower end, another dummy wire is provided so as to apply the same amount of parasitic capacity as a neighboring pixel electrode applies. With this arrangement, with regard to a liquid crystal display device with a matrix driving system, it is possible to provide the liquid crystal display device which reduces the influence caused by a difference in parasitic capacity so that an even display can be realized.
    Type: Application
    Filed: November 30, 2001
    Publication date: March 21, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masakazu Matoba, Yohsuke Fujikawa
  • Liquid crystal display device capable of reducing the influence of parasitic capacities
    Patent number: 6333771
    Abstract: A dummy wire is provided on the outside of pixel electrodes disposed on the right end so as to apply the same amount of parasitic capacity as a neighboring signal wire applies. Further, on the outside of the pixel electrodes disposed on the upper or lower end, another dummy wire is provided so as to apply the same amount of parasitic capacity as a neighboring pixel electrode applies. With this arrangement, with regard to a liquid crystal display device with a matrix driving system, it is possible to provide the liquid crystal display device which reduces the influence caused by a difference in parasitic capacity so that an even display can be realized.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: December 25, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masakazu Matoba, Yohsuke Fujikawa
  • Method of making two-terminal nonlinear device and liquid crystal apparatus including the same
    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
  • Two-terminal mim device having stable non-linearity characteristics and a lower electrode of thin TA film doped with nitrogen
    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