Patents by Inventor Tomokazu Saitou

Tomokazu Saitou 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: 9753340
    Abstract: In a display device that a terminal of a display panel is connected to bumps of the driver IC via an ACF, the driver IC includes input-side and output-side bump arrays arranged along mutually facing long sides. In configurations of the driver IC, a width A of a short side thereof ?1.45 mm, a thickness thereof B ?0.20 mm, a dimension C between input-side and output-side bumps ?1.10 mm, a length D of each bump ?98 ?m, a minimum dimension F between the bumps ?15 ?m, a number of arrays G of the output-side bump ?2 (two arrays) and a particle size E of a conductive particle contained in the anisotropic conductive film ?3.5 ?m, not more than six configurations are included.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: September 5, 2017
    Assignee: Japan Display Inc.
    Inventor: Tomokazu Saitou
  • Patent number: 9703156
    Abstract: A liquid crystal display device in which a liquid crystal layer is sandwiched between a TFT substrate having pixel electrodes and opposed electrodes formed and an opposed substrate, an external conductive film of a transparent electrode is formed on an outer surface of the opposed substrate, and an upper polarizing plate is arranged on the external conductive film. A portion of the external conductive film that is not covered with the upper polarizing plate is electrically connected to a ground potential through a conductive thermocompression bonding tape.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 11, 2017
    Assignee: Japan Display Inc.
    Inventors: Satoshi Namiki, Tomokazu Saitou, Kouichi Inoue
  • Patent number: 9557617
    Abstract: Provided is a display device making it possible to reduce or prevent occurrence of an inter-bump short circuit and a short circuit between a terminal and a bump even when the number of conductive particles in an ACF is large. The display device includes a display panel and a driver IC connected to the display panel via the ACF. The driver IC includes an input side bump and an output side bump and has a flow acceleration member on the upstream side of the output side bump relative to a flow direction of the ACF conductive particles when heating and pressurizing the ACF.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: January 31, 2017
    Assignee: Japan Display Inc.
    Inventor: Tomokazu Saitou
  • Patent number: 9477123
    Abstract: This disclosure aims to reduce workloads and material costs when a driving circuit and a flexible wiring board are fixed to a first substrate. A display device includes a display panel having the first substrate. The driving circuit is fixed to the first substrate in a portion other than a display portion with an anisotropic conductive film. The flexible wiring board is fixed to the first substrate at an end of the portion other than the display portion with an anisotropic conductive film. The anisotropic conductive film for fixing the driving circuit and the anisotropic film for fixing the flexible wiring board are the same. The anisotropic conductive film is also formed and hardened in a region other than a region having the driving circuit and the flexible wiring board fixed therein within the portion other than the display portion of the first substrate.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: October 25, 2016
    Assignee: Japan Display Inc.
    Inventors: Kouichi Inoue, Tomokazu Saitou
  • Publication number: 20150098036
    Abstract: Provided is a display device making it possible to reduce or prevent occurrence of an inter-bump short circuit and a short circuit between a terminal and a bump even when the number of conductive particles in an ACF is large. The display device includes a display panel and a driver IC connected to the display panel via the ACF. The driver IC includes an input side bump and an output side bump and has a flow acceleration member on the upstream side of the output side bump relative to a flow direction of the ACF conductive particles when heating and pressurizing the ACF.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 9, 2015
    Inventor: Tomokazu SAITOU
  • Publication number: 20150098035
    Abstract: In a display device that a terminal of a display panel is connected to bumps of the driver IC via an ACF, the driver IC includes input-side and output-side bump arrays arranged along mutually facing long sides. In configurations of the driver IC, a width A of a short side thereof ?1.45 mm, a thickness thereof B ?0.20 mm, a dimension C between input-side and output-side bumps ?1.10 mm, a length D of each bump ?98 ?m, a minimum dimension F between the bumps ?15 ?m, a number of arrays G of the output-side bump ?2 (two arrays) and a particle size E of a conductive particle contained in the anisotropic conductive film ?3.5 ?m, not more than six configurations are included.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 9, 2015
    Inventor: Tomokazu SAITOU
  • Publication number: 20140340618
    Abstract: A liquid crystal display device in which a liquid crystal layer is sandwiched between a TFT substrate having pixel electrodes and opposed electrodes formed and an opposed substrate, an external conductive film of a transparent electrode is formed on an outer surface of the opposed substrate, and an upper polarizing plate is arranged on the external conductive film. A portion of the external conductive film that is not covered with the upper polarizing plate is electrically connected to a ground potential through a conductive thermocompression bonding tape.
    Type: Application
    Filed: August 5, 2014
    Publication date: November 20, 2014
    Inventors: Satoshi Namiki, Tomokazu Saitou, Kouichi Inoue
  • Patent number: 8804087
    Abstract: An object of the present invention is to reliably ground an external conductive film formed on an opposed substrate to secure a stable shield effect in an IPS-type liquid crystal display device. An external conductive film formed on an opposed substrate is connected to an earth pad formed on a TFT substrate through a conductive thermocompression bonding tape. The conductive thermocompression bonding tape is connected by a thermocompression bonding head to form a conductive area. The width of the conductive area on the opposed substrate is made larger than the width of the conductive area on the TFT substrate to prevent the conductive thermocompression bonding tape from peeling off from the opposed substrate. Accordingly, the external conductive film of the opposed substrate is reliably grounded.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 12, 2014
    Assignee: Japan Display Inc.
    Inventors: Satoshi Namiki, Tomokazu Saitou, Kouichi Inoue
  • Publication number: 20140132895
    Abstract: This disclosure aims to reduce workloads and material costs when a driving circuit and a flexible wiring board are fixed to a first substrate. A display device includes a display panel having the first substrate. The driving circuit is fixed to the first substrate in a portion other than a display portion with an anisotropic conductive film. The flexible wiring board is fixed to the first substrate at an end of the portion other than the display portion with an anisotropic conductive film. The anisotropic conductive film for fixing the driving circuit and the anisotropic film for fixing the flexible wiring board are the same. The anisotropic conductive film is also formed and hardened in a region other than a region having the driving circuit and the flexible wiring board fixed therein within the portion other than the display portion of the first substrate.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 15, 2014
    Applicant: Japan Display Inc.
    Inventors: Kouichi INOUE, Tomokazu SAITOU
  • Publication number: 20130027626
    Abstract: An object of the present invention is to reliably ground an external conductive film formed on an opposed substrate to secure a stable shield effect in an IPS-type liquid crystal display device. An external conductive film formed on an opposed substrate is connected to an earth pad formed on a TFT substrate through a conductive thermocompression bonding tape. The conductive thermocompression bonding tape is connected by a thermocompression bonding head to form a conductive area. The width of the conductive area on the opposed substrate is made larger than the width of the conductive area on the TFT substrate to prevent the conductive thermocompression bonding tape from peeling off from the opposed substrate. Accordingly, the external conductive film of the opposed substrate is reliably grounded.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 31, 2013
    Inventors: Satoshi NAMIKI, Tomokazu SAITOU, Kouichi INOUE
  • Patent number: 7533941
    Abstract: Seating comfort is improved in a seat pad for vehicles includes a pad main body having a bottom dented upward to form a concave portion and having an insert arranged in the concave portion. The seat pad for vehicles 10 includes a cushion pad. The cushion pad includes a pad main body 20, an insert 30, and a rigid layer 40. The pad main body 20 has a concave portion 24. The insert 30 fits in the concave portion 24. The rigid layer 40 is bonded with the ceiling plane of the concave portion 24. The insert 30 has many protrusions 31 on its top face, and gaps between the protrusions 31 constitute a space 32. The space 32 communicates with a seating plane through holes 27 and communicates with the seating plane of the insert 30 through a through hole 33.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: May 19, 2009
    Assignee: Bridgestone Corporation
    Inventors: Tomokazu Saitou, Kazushige Ebe
  • Publication number: 20070241604
    Abstract: Seating comfort is improved in a seat pad for vehicles includes a pad main body having a bottom dented upward to form a concave portion and having an insert arranged in the concave portion. The seat pad for vehicles 10 includes a cushion pad. The cushion pad includes a pad main body 20, an insert 30, and a rigid layer 40. The pad main body 20 has a concave portion 24. The insert 30 fits in the concave portion 24. The rigid layer 40 is bonded with the ceiling plane of the concave portion 24. The insert 30 has many protrusions 31 on its top face, and gaps between the protrusions 31 constitute a space 32. The space 32 communicates with a seating plane through holes 27 and communicates with the seating plane of the insert 30 through a through hole 33.
    Type: Application
    Filed: April 9, 2007
    Publication date: October 18, 2007
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Tomokazu Saitou, Kazushige Ebe