Patents by Inventor Hiroshi Tsuchiya
Hiroshi Tsuchiya 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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Publication number: 20190064604Abstract: The present invention provides a liquid crystal display device capable of maintaining a favorable voltage holding ratio for a long period of time and thereby reducing generation of image sticking not only at room temperature but also at high temperatures. The liquid crystal display device includes: paired substrates; a liquid crystal layer that is held between the paired substrates and contains liquid crystal molecules; and an alignment film disposed between at least one of the paired substrates and the liquid crystal layer, the alignment film containing quantum dots.Type: ApplicationFiled: March 3, 2017Publication date: February 28, 2019Applicant: SHARP KABUSHIKI KAISHAInventors: HIROSHI TSUCHIYA, MASANOBU MIZUSAKI
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Publication number: 20190049796Abstract: The present invention aims to provide a liquid crystal display device in which image sticking and stains are sufficiently reduced. The present invention relates to an alignment film including: a polymer, wherein the polymer is a polysiloxane or a polyvinyl and contains a silsesquioxane group. The present invention also relates to a polymer for use in the alignment film, the polymer containing a silsesquioxane group. The present invention also relates to a liquid crystal display device including: the alignment film; a pair of substrates; and a liquid crystal layer disposed between the substrates, wherein the alignment film is disposed between at least one of the substrates and the liquid crystal layer.Type: ApplicationFiled: January 31, 2017Publication date: February 14, 2019Inventors: MASANOBU MIZUSAKI, HIROSHI TSUCHIYA, YUKO TERAOKA, TSUYOSHI OKAZAKI
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Patent number: 10203558Abstract: The present invention provides a liquid crystal display device that maintains a sufficient voltage holding ratio over a long period of time even when a liquid crystal panel having a narrower frame is used and that undergoes no burn-in or no stains on a display screen. The liquid crystal display device of the present invention includes an active-matrix liquid crystal panel and a backlight, wherein the liquid crystal panel includes a liquid crystal layer, a pair of substrates between which the liquid crystal layer is sandwiched, alignment layers disposed on surfaces of the pair of substrates facing the liquid crystal layer, and a seal part that bonds the pair of substrates to each other and that is disposed around the liquid crystal layer, and the liquid crystal panel is formed by a liquid crystal one-drop fill process, wherein the liquid crystal layer includes a liquid crystal material and at least one of a radical scavenger and an antioxidant, and the seal part has a width of 0.6 mm or less at least in part.Type: GrantFiled: August 24, 2015Date of Patent: February 12, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Koichi Miyachi, Masanobu Mizusaki, Tsuyoshi Okazaki, Hiroshi Tsuchiya, Isamu Miyake, Toshihiro Matsumoto
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Publication number: 20190040320Abstract: The present invention provides a liquid crystal display device in which image sticking and stains are sufficiently reduced. The present invention relates to an alignment film including: a polymer containing a piperidine skeleton-containing group and/or a quinone group; and a photo-aligning functional group. The present invention also relates to a polymer for use in the alignment film, the polymer containing a piperidine skeleton-containing group and/or a quinone group. The present invention also relates to a liquid crystal display device including: the alignment film; a pair of substrates; and a liquid crystal layer disposed between the substrates, wherein the alignment film is disposed between at least one of the substrates and the liquid crystal layer.Type: ApplicationFiled: February 1, 2017Publication date: February 7, 2019Inventors: MASANOBU MIZUSAKI, HIROSHI TSUCHIYA
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Patent number: 10197829Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.Type: GrantFiled: August 24, 2015Date of Patent: February 5, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Koichi Miyachi, Masanobu Mizusaki, Tsuyoshi Okazaki, Hiroshi Tsuchiya, Isamu Miyake, Toshihiro Matsumoto
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Publication number: 20190033665Abstract: The present invention provides a liquid crystal display device that can retain a favorable VHR and a low residual DC voltage and minimize display unevenness such as stains and image sticking, in long-term use at high temperatures.Type: ApplicationFiled: February 10, 2017Publication date: January 31, 2019Inventors: MASANOBU MIZUSAKI, HIROSHI TSUCHIYA, KATSUYA OGAWA, TOSHIAKI FUJIHARA
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Publication number: 20190011736Abstract: With the use of a photoalignment film, the present invention provides a liquid crystal display device capable of maintaining a favorable voltage holding ratio and reducing or preventing image sticking, stains, and a decrease in contrast ratio for a long time not only in a room-temperature environment but also in a high-temperature environment; and a method for producing such a liquid crystal display device. The liquid crystal display device of the present invention includes paired substrates; a liquid crystal layer disposed between the substrates; a photoalignment film disposed between at least one of the substrates and the liquid crystal layer; and a polymer layer disposed between the photoalignment film and the liquid crystal layer, wherein the polymer layer has a structure derived from a specific epoxy-based monomer and a structure derived from a specific curing agent.Type: ApplicationFiled: December 28, 2016Publication date: January 10, 2019Applicant: Sharp Kabushiki KaishaInventors: Masanobu MIZUSAKI, Hiroshi TSUCHIYA
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Publication number: 20180371302Abstract: The present invention aims to provide a sealant for sealing liquid crystal and a liquid crystal display device, which can sufficiently reduce image sticking and stains at the periphery of a liquid crystal display. The sealant for sealing liquid crystal of the present invention contains a curable resin and a radical polymerization initiator, wherein the radical polymerization initiator contains a silsesquioxane group. The silsesquioxane group is preferably a group represented by the following formula (I) or (II): wherein R1s are the same as or different from each other and each represent a monovalent organic group; R2 represents a divalent linking group; R3s are the same as or different from each other and each represent a monovalent organic group; and R4 represents a divalent linking group.Type: ApplicationFiled: November 24, 2016Publication date: December 27, 2018Applicant: SHARP KABUSHIKI KAISHAInventors: MASANOBU MIZUSAKI, HIROSHI TSUCHIYA, KENYA ITO
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Publication number: 20180373098Abstract: The present invention aims to provide an alignment film capable of sufficiently reducing image sticking and stain in a liquid crystal display device, and a liquid crystal display device including a photo-alignment film and sufficiently reducing image sticking and stain. The alignment film of the present invention contains a polymer containing a nitrogen radical-containing group, and a photo-functional group. The nitrogen radical-containing group is preferably a hydrazyl radical-containing group represented by the following formula (I) or (II): wherein R1 is a direct bond or a divalent organic group; Me is a methyl group; and Bu is a butyl group.Type: ApplicationFiled: November 28, 2016Publication date: December 27, 2018Inventors: HIROSHI TSUCHIYA, MASANOBU MIZUSAKI
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Patent number: 10073306Abstract: A liquid crystal display device (100) includes: a liquid crystal layer (42) held between a pair of substrates (10, 30), the liquid crystal layer containing one or more types of positive liquid crystal compounds whose dielectric anisotropy is positive and one or more types of negative liquid crystal compounds whose dielectric anisotropy is negative, a total content of the positive liquid crystal compounds not being smaller than a total content of the negative liquid crystal compounds; a pixel electrode (24) provided in the pair of substrates, the pixel electrode having a plurality of linear portions and a slit; and a common electrode (22) insulated from the pixel electrode, wherein the pixel electrode and the common electrode apply across the liquid crystal layer a pixel voltage of positive polarity and a pixel voltage of negative polarity alternately at a frequency lower than 60 Hz.Type: GrantFiled: April 17, 2015Date of Patent: September 11, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Yuichi Kita, Tsuyoshi Okazaki, Hiroshi Tsuchiya, Kazuhito Matsumoto, Ken Kuboki
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Publication number: 20180164616Abstract: The present invention provides a liquid crystal display device that can exhibit a long-lasting favorable voltage holding ratio and prevent deterioration of reliability. The liquid crystal display device of the present invention includes: paired substrates disposed to face each other; a liquid crystal layer disposed between the substrates; and an alignment film disposed between at least one of the substrates and the liquid crystal layer, the at least one of the substrates including an electrode and/or a conductive line that contain(s) copper or aluminum, the liquid crystal layer containing a liquid crystal component and an additive component with a chemical structure including a benzotriazole group represented by a given chemical formula.Type: ApplicationFiled: May 23, 2016Publication date: June 14, 2018Applicant: SHARP KABUSHIKI KAISHAInventors: HIROSHI TSUCHIYA, MASANOBU MIZUSAKI
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Publication number: 20180149927Abstract: The present disclosure provides a liquid crystal display device that can maintain a high voltage holding ratio for extended periods and can ensure reliability. A liquid crystal display device according to the present disclosure includes a pair of opposing substrates, a liquid crystal layer between the pair of substrates, and an alignment film between at least one of the pair of substrates and the liquid crystal layer. At least one of the pair of substrates has an electrode and/or wire containing copper or aluminum. The alignment film contains a polymer with a chemical structure on a side chain of the polymer, the chemical structure having a benzotriazole group represented by a specific chemical formula.Type: ApplicationFiled: May 23, 2016Publication date: May 31, 2018Inventors: MASANOBU MIZUSAKI, HIROSHI TSUCHIYA
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Publication number: 20180043353Abstract: Provided is a measurement container including a container body where a first region, a second region, and an intermediate region are continuously formed as an accommodation space accommodating a sample and an inlet is formed and a rotor which is arranged in the second region and rotated by an effect of magnetic force. The container body includes a wall portion which defines the accommodation space and at least a portion of which has a light transmitting property and a partitioning portion which partitions the intermediate region into one side and the other side in a second direction perpendicular to the first direction. The partitioning portion partitions the intermediate region into the one side and the other side so that a communication region which allows the one side and the other side to communicate with each other in the intermediate region remains.Type: ApplicationFiled: August 9, 2017Publication date: February 15, 2018Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Kimiko KAZUMURA, Hiroshi TSUCHIYA
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Patent number: 9880429Abstract: The present invention provides a liquid crystal display device that is capable of achieving good display characteristics even if the pixel size is reduced. A liquid crystal display device of the present invention includes a first substrate, a second substrate and a liquid crystal layer that is sandwiched between the first substrate and the second substrate. The liquid crystal layer contains a liquid crystal material that has negative dielectric anisotropy. The first substrate has a first hook-like electrode and a second hook-like electrode, which are independent from each other. When the first substrate is seen in a plan view, the inner profile line of the first hook-like electrode and the inner profile line of the second hook-like electrode face each other.Type: GrantFiled: September 19, 2013Date of Patent: January 30, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroshi Tsuchiya, Tsuyoshi Okazaki
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Publication number: 20170363891Abstract: The present invention provides a liquid crystal display device that maintains a sufficient voltage holding ratio over a long period of time even when a liquid crystal panel having a narrower frame is used and that undergoes no burn-in or no stains on a display screen. The liquid crystal display device of the present invention includes an active-matrix liquid crystal panel and a backlight, wherein the liquid crystal panel includes a liquid crystal layer, a pair of substrates between which the liquid crystal layer is sandwiched, alignment layers disposed on surfaces of the pair of substrates facing the liquid crystal layer, and a seal part that bonds the pair of substrates to each other and that is disposed around the liquid crystal layer, and the liquid crystal panel is formed by a liquid crystal one-drop fill process, wherein the liquid crystal layer includes a liquid crystal material and at least one of a radical scavenger and an antioxidant, and the seal part has a width of 0.6 mm or less at least in part.Type: ApplicationFiled: August 24, 2015Publication date: December 21, 2017Applicant: Sharp Kabushiki KaishaInventors: Koichi MIYACHI, Masanobu MIZUSAKI, Tsuyoshi OKAZAKI, Hiroshi TSUCHIYA, Isamu MIYAKE, Toshihiro MATSUMOTO
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Publication number: 20170276976Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.Type: ApplicationFiled: August 24, 2015Publication date: September 28, 2017Inventors: Koichi MIYACHI, Masanobu MIZUSAKI, Tsuyoshi OKAZAKI, Hiroshi TSUCHIYA, Isamu MIYAKE, Toshihiro MATSUMOTO
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Patent number: 9726595Abstract: A measurement apparatus includes a sample stage, an excitation unit, a light receiving unit, a stimulant applying nozzle, and a spray nozzle in a measurement space inside a body case, and also includes a heating unit and a gas supplying unit. The body case includes an inner case surrounding the measurement space, and an outer case surrounding the inner case to shield the measurement space from light from the outside and seal the measurement space. The heating unit is disposed between the inner case and the outer case and adjusts temperature in the measurement space through the inner case. The gas supplying unit supplies gas having controlled temperature and humidity into the measurement space and adjusts temperature and humidity in the measurement space.Type: GrantFiled: August 11, 2016Date of Patent: August 8, 2017Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kimiko Kazumura, Hiroshi Tsuchiya
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Publication number: 20170108436Abstract: The present invention relates to a method for evaluating phagocytic capacity of phagocytes, including incorporating a fluorescent substance into phagocytes in a sample containing whole blood to obtain a measurement sample, standing the measurement sample for 2 minutes or more, measuring the fluorescence of the fluorescent substance, and evaluating the phagocytic capacity of phagocytes based on the intensity of the measured fluorescence, in which the measuring the fluorescence of the fluorescent substance includes irradiating an intermediate region of gravity direction of a placed measurement sample with an excitation light, and detecting the fluorescence generated from the fluorescent substance by the excitation light.Type: ApplicationFiled: October 13, 2016Publication date: April 20, 2017Inventors: Ran ZHANG, Hiroyuki INAGAWA, Gen-Ichiro SOMA, Kimiko KAZUMURA, Hiroshi TSUCHIYA, Naokazu MORISHITA
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Patent number: 9612488Abstract: The present invention provides a liquid crystal display device by which it is possible to attain both high transmittance and wide viewing angle even if the pixels are small.Type: GrantFiled: August 22, 2013Date of Patent: April 4, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroshi Tsuchiya, Tsuyoshi Okazaki
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Publication number: 20170052109Abstract: A measurement apparatus includes a sample stage, an excitation unit, a light receiving unit, a stimulant applying nozzle, and a spray nozzle in a measurement space inside a body case, and also includes a heating unit and a gas supplying unit. The body case includes an inner case surrounding the measurement space, and an outer case surrounding the inner case to shield the measurement space from light from the outside and seal the measurement space. The heating unit is disposed between the inner case and the outer case and adjusts temperature in the measurement space through the inner case. The gas supplying unit supplies gas having controlled temperature and humidity into the measurement space and adjusts temperature and humidity in the measurement space.Type: ApplicationFiled: August 11, 2016Publication date: February 23, 2017Inventors: Kimiko KAZUMURA, Hiroshi TSUCHIYA