Patents by Inventor Naoshige Higuchi

Naoshige 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: 5571455
    Abstract: The present invention relates to a composition for forming an electroconductive pattern excellent in electroconductivity, comprising as main components (a) an alloy powder which is obtained by cooling and finely dividing an eutectic mixture comprising 99.5%-94.5% by weight of nickel and 0.5%-5.5% by weight of boron, (b) a glass frit and (c) an organic vehicle, and a process for forming an electroconductive pattern with the composition.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: November 5, 1996
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventor: Naoshige Higuchi
  • Patent number: 5352478
    Abstract: A plasma display panel comprises a front plate disposed on the side of a viewer, a rear plate disposed in parallel and opposing the front plate, and cell barriers arranged between the front and rear plates of matrix shape or linear shape. The cell barrier is formed of a material including a phosphor. The cell barriers are formed by printing multiple times a phosphor paste containing glass frit in an overlapped manner by a screen printing method. The cell barrier is formed in another method in which a positive pattern of cell barriers are formed on the front or rear plate by using photo resist, a slurry containing a phosphor fills in portions except for the pattern of the photo resist, and the photo resist is thereafter removed to thereby form cell barriers. In the case of the cell barrier of a color display PDP, the cell barrier may be composed of a material containing phosphor of different colors each with a width corresponding to a one half width of the cell barrier.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: October 4, 1994
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Toru Miyake, Yoshiki Kudo, Naoshige Higuchi
  • Patent number: 5136207
    Abstract: A plasma display panel comprises a front plate disposed on the side of a viewer, a rear plate disposed in parallel and opposing the front plate, and the cell barriers arranged between the front and rear plates of matrix shape or linear shape. The cell barrier is formed of a material including a phosphor. The cell barriers are formed by printing multiple times a phosphor paste containing glass frit in an overlapped manner by a screen printing method. The cell barrier is formed in another method in which a positive pattern of cell barriers are formed on the front or rear plate by using photo resist, a slurry containing a phosphor fills in portions except for the pattern of the photo resist, and the photo resist is thereafter removed to thereby form cell barriers. In the case of the cell barrier of a color display PDP, the cell barrier may be composed of a material containing phosphor of different colors each with a width corresponding to a one half width of the cell barrier.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: August 4, 1992
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Toru Miyake, Yoshiki Kudo, Naoshige Higuchi
  • Patent number: 5086297
    Abstract: A method of forming a fluorescent screen for a plasma display panel provided with a front plate and a rear plate disposed parallel to each other and a cell barrier mounted on the front or rear plate and constituting a plurality of cells as display elements is characterized in that the cell barrier is located on a surface of the front or rear plate facing the other plate, a slurry solution containing a phosphor is filled in a portion defined by a cell wall of the cell barrier on the front or rear plate, only the wall surface of the cell barrier is exposed, and so a photosensitive layer containing a phosphor is formed at a portion inside the cell barrier. The fluorescent screen forming method is further characterized in another aspect in that a slurry solution containing a phosphor fills inside the cell of the cell barrier disposed on the plate, the plate is inclined immediately thereafter with an inclination of about 90.degree.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: February 4, 1992
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Toru Miyake, Naoshige Higuchi, Yoshiki Kudo, Hisao Tanabe
  • Patent number: 5009972
    Abstract: According to the present blank plate and method for forming multi-color fluorescent planes, a photosensitive layer is formed on one side of a substrate and exposed to light from the other side thereof. The step of exposure to light is carried out with a combination of a full-color pattern including light-transmitting segments in coincidence with every color pattern with a single-color mask including light-transmitting segments corresponding to each color pattern. After the full-color pattern has been formed on the substrate, the photosensitive layer containing a fluorophore is formed and, then, exposed to light from the side of the substrate opposite to the side having the photosensitive layer formed thereon through the single-color mask attached in place, followed by development. The above steps are repeated to form a multi-color fluorescent plane having the desired pattern.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: April 23, 1991
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Naoshige Higuchi, Toru Miyake