Patents by Inventor Shoichi Tanamachi

Shoichi Tanamachi 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: 6094183
    Abstract: A plasma addressed liquid crystal display device is disclosed wherein the dimension of a gap of a liquid crystal cell is controlled uniformly over the entire area of the screen of the display device.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: July 25, 2000
    Assignee: Sony Corporation
    Inventors: Shoichi Tanamachi, Kazuto Kimura
  • Patent number: 5759079
    Abstract: A picture display device for driving a layer of an electro-optical material by exploiting a plasma for selecting a picture. The device includes a first substrate having a plurality of first electrodes arranged in parallel to one another, a second substrate having a plurality of parallel second electrodes extending perpendicularly to the first electrodes, a dielectric sheet provided between the first substrate and the second substrate, a plurality of barrier ribs provided on the second substrate to from a plurality of plasma channels between neighboring second electrodes, an electro-optical layer provided between the first substrate and the dielectric sheet, an ionizable gas sealed between the second substrate and the dielectric sheet, and a plurality of insulating layers formed on the second electrode, with each insulating layer being formed on a part of the second electrode. There is also disclosed a method for manufacturing the plasma display device.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: June 2, 1998
    Assignee: Sony Corporation
    Inventor: Shoichi Tanamachi
  • Patent number: 5689153
    Abstract: A picture display device for driving a layer of an electro-optical material by exploiting a plasma for selecting a picture. The device includes a first substrate having a plurality of first electrodes arranged in parallel to one another, a second substrate having a plurality of parallel second electrodes extending perpendicularly to the first electrodes, a dielectric sheet provided between the first substrate and the second substrate, a plurality of barrier ribs provided on the second substrate to from a plurality of plasma channels between neighboring second electrodes, an electro-optical layer provided between the first substrate and the dielectric sheet, an ionizable gas sealed between the second substrate and the dielectric sheet, and a plurality of insulating layers formed on the second electrode, with each insulating layer being formed on a part of the second electrode. There is also disclosed a method for manufacturing the plasma display device.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: November 18, 1997
    Assignee: Sony Corporation
    Inventor: Shoichi Tanamachi
  • Patent number: 5661501
    Abstract: In a driving method capable of selectively scanning discharge channels in a stable and efficient manner using an open-cell structure, a plasma-addressed display device comprises a display cell, a plasma cell, a scanner, a supply and a controller. The display cell is equipped with data electrodes arranged so as to be mutually parallel. The plasma cell is for creating discharge channels formed in such a manner as to be orthogonal with respect to the data electrodes and has anodes and cathodes alternately arrayed in such a manner as to be shared between adjacent discharge channels. The scanner is for carrying out selective scanning of the discharge channels. The supply is for applying a data voltage to the data electrodes.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: August 26, 1997
    Assignee: Sony Corporation
    Inventor: Shoichi Tanamachi
  • Patent number: 5523770
    Abstract: A plurality of signal electrodes D arranged in parallel to each other are formed on a major surface of a first substrate 4. A second substrate 6 is opposed to the first substrate. A plurality of plasma electrodes 7 arranged in parallel to each other and intersecting the signal electrodes D are printed on a major surface of the second substrate 6. In addition, an opaque insulating striped pattern 8 is printed so as to intersect and overlap with the plasma electrodes 7. A liquid crystal layer 5 is sandwiched between the first and second substrates 4 and 6. Further, a plasma chamber 10 having consecutive spaces is formed between the liquid crystal layer 5 and the second substrate 6, and filled with an ionizable gas. The gap space of the plasma chamber 10 can be controlled on the basis of the film thicknesses of the plasma electrodes 7 and the striped pattern 8. The gas is selectively ionized by discharge generated between the two adjacent plasma electrodes 7.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: June 4, 1996
    Assignee: Sony Corporation
    Inventor: Shoichi Tanamachi
  • Patent number: 5351144
    Abstract: A plasma addressed electro-optical device comprising a first substrate having a plurality of first electrodes arranged substantially in parallel to each other on a major surface thereof; a second substrate opposed to the first substrate and having a plurality of second electrodes arranged substantially in parallel to each other on a major surface thereof; an electro-optical material layer positioned between the first and second substrates; and a discharge chamber formed between the electro-optical material layer and the second substrate and containing an ionizable gas. The second electrode has a plurality of barrier ribs periodically disposed thereon, and the first and second electrodes are so arranged as to be spaced apart in the vertical and horizontal directions, respectively. And each of the barrier ribs is substantially the same in width as the second electrode.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: September 27, 1994
    Assignee: Sony Corporation
    Inventor: Shoichi Tanamachi