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).
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Patent number: 9753340Abstract: 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: GrantFiled: October 7, 2014Date of Patent: September 5, 2017Assignee: Japan Display Inc.Inventor: Tomokazu Saitou
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Patent number: 9703156Abstract: 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: GrantFiled: August 5, 2014Date of Patent: July 11, 2017Assignee: Japan Display Inc.Inventors: Satoshi Namiki, Tomokazu Saitou, Kouichi Inoue
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Patent number: 9557617Abstract: 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: GrantFiled: October 7, 2014Date of Patent: January 31, 2017Assignee: Japan Display Inc.Inventor: Tomokazu Saitou
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Patent number: 9477123Abstract: 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: GrantFiled: November 1, 2013Date of Patent: October 25, 2016Assignee: Japan Display Inc.Inventors: Kouichi Inoue, Tomokazu Saitou
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Publication number: 20150098036Abstract: 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: ApplicationFiled: October 7, 2014Publication date: April 9, 2015Inventor: Tomokazu SAITOU
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Publication number: 20150098035Abstract: 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: ApplicationFiled: October 7, 2014Publication date: April 9, 2015Inventor: Tomokazu SAITOU
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Publication number: 20140340618Abstract: 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: ApplicationFiled: August 5, 2014Publication date: November 20, 2014Inventors: Satoshi Namiki, Tomokazu Saitou, Kouichi Inoue
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Patent number: 8804087Abstract: 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: GrantFiled: July 26, 2012Date of Patent: August 12, 2014Assignee: Japan Display Inc.Inventors: Satoshi Namiki, Tomokazu Saitou, Kouichi Inoue
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Publication number: 20140132895Abstract: 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: ApplicationFiled: November 1, 2013Publication date: May 15, 2014Applicant: Japan Display Inc.Inventors: Kouichi INOUE, Tomokazu SAITOU
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Publication number: 20130027626Abstract: 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: ApplicationFiled: July 26, 2012Publication date: January 31, 2013Inventors: Satoshi NAMIKI, Tomokazu SAITOU, Kouichi INOUE
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Patent number: 7533941Abstract: 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: GrantFiled: April 9, 2007Date of Patent: May 19, 2009Assignee: Bridgestone CorporationInventors: Tomokazu Saitou, Kazushige Ebe
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Publication number: 20070241604Abstract: 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: ApplicationFiled: April 9, 2007Publication date: October 18, 2007Applicant: BRIDGESTONE CORPORATIONInventors: Tomokazu Saitou, Kazushige Ebe