Patents by Inventor Seiichi Kizaki

Seiichi Kizaki 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: 6628360
    Abstract: A liquid crystal display device includes a first substrate having at least one first electrode formed thereon, and a second substrate having a plurality of second electrodes formed thereon and opposed to the first electrode, a matrix display section being formed which has a plurality of pixel electrodes constituted of the first and second electrodes and arranged in a matrix of rows and columns. The second substrate is opposed to the first substrate with a predetermined gap therebetween. First and second alignment films respectively are formed on the opposed inner surfaces of the first and second substrates. A liquid crystal is sealed between the first and second substrates. An aligning treatment is executed on the first alignment film in a first direction that intersects, at an angle of 5° to 10°, one of a row direction and a column direction of the matrix display section.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: September 30, 2003
    Assignee: Casio Computer Co., Ltd.
    Inventors: Hiroko Yamada, Seiichi Kizaki
  • Publication number: 20010028428
    Abstract: A liquid crystal display device includes a first substrate having at least one first electrode formed thereon, and a second substrate having a plurality of second electrodes formed thereon and opposed to the first electrode, a matrix display section being formed which has a plurality of pixel electrodes constituted of the first and second electrodes and arranged in a matrix of rows and columns. The second substrate is opposed to the first substrate with a predetermined gap therebetween. First and second alignment films respectively are formed on the opposed inner surfaces of the first and second substrates. A liquid crystal is sealed between the first and second substrates. An aligning treatment is executed on the first alignment film in a first direction that intersects, at an angle of 5° to 10°, one of a row direction and a column direction of the matrix display section.
    Type: Application
    Filed: March 26, 2001
    Publication date: October 11, 2001
    Applicant: Casio Computer Co., Ltd.
    Inventors: Hiroko Yamada, Seiichi Kizaki
  • Patent number: 5126868
    Abstract: A display cell is mounted on a color-compensating cell. The display cell has a pair of substrates each having an alignment-treated surface, a first liquid-crystal layer and electrodes. Multiplex drive signals are supplied to the electrodes. The color-compensating cell has a second liquid-crystal layer. The molecules of the first liquid-crystal layer are twisted by a twist angle ranging from 160.degree. to 270.degree.. The molecules of the second liquid-crystal layer are twisted by the same angle in the opposite direction. The substrates are alignment-treated in two directions, respectively, which are substantially at right angles to each other. One of the polarizing plates has an optical axis crossing at 35.degree. to 50.degree. with an aligning direction of the liquid crystal molecules on that substrate adjacent to the polarizing plate, and crossing with the optical axis of the other polarizing plate at right angles.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: June 30, 1992
    Assignee: Casio Computer Co., Ltd.
    Inventors: Seiichi Kizaki, Toshiomi Ono, Ken Kozima, Mikiya Itakura, Toshihiro Aoki
  • Patent number: 4846999
    Abstract: A liquid crystal composition includes three liquid crystal materials, each selected from specified liquid crystal compounds. The composition has a low threshold voltage and a low viscosity.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: July 11, 1989
    Assignee: Casio Computer Co., Ltd.
    Inventor: Seiichi Kizaki