Patents by Inventor Akira Sakai

Akira Sakai 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).

  • Publication number: 20200065954
    Abstract: A non-transitory computer-readable recording medium storing therein an anomalousness determination program that causes a computer to execute a process includes: sensing a region in an object in each of a plurality of ultrasound examination images using an object sensing technique; based on a result of the sensing and a structure of the object, acquiring a result of sensing each of a plurality of regions in the object in each of the ultrasound examination images; and determining anomalousness in the object based on the result of sensing each of the regions in the ultrasound examination images.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Masaaki Komatsu, Hiroyuki Yoshida, Akira Sakai, Akihiko Sekizawa, Ryu Matsuoka, Ryuji Hamamoto
  • Publication number: 20200064683
    Abstract: The present invention relates to a display panel including on a viewing surface side thereof a thin film transistor substrate. The thin film transistor substrate includes a multilayer film in a region in a plan view including at least one electrode of thin film transistor electrodes including a gate electrode, a source electrode, and a drain electrode. The multilayer film includes a stack including, in the order from the viewing surface side, a first metal layer having a thickness of 40 nm or smaller, a first transparent insulating layer having a thickness of 10 nm or greater and 155 nm or smaller, and a second metal layer having a greater thickness than the first metal layer. The multilayer film includes a layer formed from a metal having a reflectance at a thickness of 200 nm of 50% or lower.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 27, 2020
    Inventors: Akira HIRAI, Kiyoshi MINOURA, Hiromi MATSUMOTO, Akira SAKAI, Yasuhiro HASEBA
  • Publication number: 20200060659
    Abstract: A non-transitory computer-readable recording medium stores therein an examination assisting program that causes a computer to execute a process including: performing a site detecting process that uses an object detection technique on each of a plurality of ultrasound examination images taken of an examined subject by performing a scan on the examined subject; and displaying a site detection map in which a detection result of each of a plurality of sites included in the examined subject is kept in correspondence with the scan, on a basis of detection results from the site detecting process.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventors: Masaaki Komatsu, Hiroyuki Yoshida, Akira Sakai, Akihiko Sekizawa, Ryu Matsuoka, Ryuji Hamamoto
  • Publication number: 20200064692
    Abstract: The present invention provides a liquid crystal display device including: a liquid crystal panel including a viewing surface side substrate, a liquid crystal layer, and a back surface side substrate; and a backlight including a reflector facing the back surface side substrate, wherein the liquid crystal panel in a plan view includes multiple pixel regions and a non-display region between the pixel regions, in the pixel regions, color filters are disposed, in the non-display region, a gate electrode layer, a source-drain electrode layer, and a semiconductor layer are disposed, the back surface side substrate includes a reflective surface facing the backlight in at least part of the non-display region, and the reflective surface is constituted by a metal material having a higher reflectance than a metal material contained in portions of the source-drain electrode layer that are connected to the semiconductor layer.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Akira HIRAI, Kiyoshi MINOURA, Yasuhiro HASEBA, Akira SAKAI
  • Publication number: 20200064671
    Abstract: The present invention relates to a liquid crystal panel including in the following order from a viewing surface side: an antireflection film; a circularly polarizing plate including a linearly polarizing plate and an out-cell retarder; a touch panel including a support and a detection electrode; a panel substrate; and an in-cell retarder, the support having a retardation slow axis that forms an angle of 40° to 50° with a slow axis of the in-cell retarder and with a slow axis of the out-cell retarder, the support having a retardation of 3 nm or smaller.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Yuichi Kawahira, Koji Murata, Takako Koide, Masahiro Hasegawa, Akira Sakai
  • Publication number: 20200041830
    Abstract: The present invention provides a retardation substrate capable of producing a liquid crystal display device more easily and a liquid crystal display device provided with the retardation substrate. The retardation substrate of the present invention is a retardation substrate including a base material and an optical functional layer provided on one surface of the base material, in which the optical functional layer includes a retardation layer, and a direction of a slow axis of a surface of the optical functional layer is different from a direction of a slow axis inside the retardation layer.
    Type: Application
    Filed: March 22, 2018
    Publication date: February 6, 2020
    Inventors: KOJI MURATA, AKIRA SAKAI, YUICHI KAWAHIRA, MASAHIRO HASEGAWA, TAKAKO KOIDE, KOZO NAKAMURA, KIYOSHI MINOURA
  • Publication number: 20200012150
    Abstract: The present invention provides a display device that can display chromatic color(s) and pattern(s) without power consumption in the non-display state (light off state) and an electronic apparatus including the display device. The display device includes a display panel and a transflective reflector disposed on a viewing surface side of the display panel. The transflective reflector includes a reflective polarizer. The reflective polarizer is chromatic and/or the transflective reflector further includes a chromatic layer on a side closer to the viewing surface than the reflective polarizer.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 9, 2020
    Inventors: HISASHI WATANABE, AKIRA SAKAI, HIROYUKI HAKOI
  • Publication number: 20190391807
    Abstract: A processing unit generates a first graph that has a plurality of vertices respectively corresponding to all variables included in an objective function and has edges each connecting two vertices to indicate an existence of interaction between corresponding variables, generates a second graph, which is an abstraction of the first graph, by repeatedly merging two vertices connected by an edge into one vertex in the first graph, classifies all variables into candidates for variable groups to be respectively used for partial problems and a candidate for a boundary variable group to be used for computing a complete solution to a combinatorial optimization problem, based on the connection relationship among a plurality of vertices included in the second graph and a partition count, and determines the variable groups and boundary variable group, based on these candidates by reference to the connection relationship among the vertices included in the first graph.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 26, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Kazuhisa Inagaki, Akira Sakai
  • Publication number: 20190384101
    Abstract: A liquid crystal display panel includes a first ?/4 retardation layer, a first substrate, a color filter layer, a liquid crystal layer containing horizontally aligned liquid crystals, and a second ?/4 retardation layer that is formed from a different material from the first ?/4 retardation layer between the first substrate and the color filter layer or between the color filter layer and the liquid crystal layer. The second ?/4 retardation layer has a smaller thickness in a region overlapping the blue color filter than in a region overlapping the green color filter. The first ?/4 retardation layer provides a retardation Rout(?) to light having a wavelength of ? nm. The second ?/4 retardation layer provides a retardation Rin(?). The retardation Rout(?) and the retardation Rin(?) satisfy the following formula (1) in the region overlapping the blue color filter. ?1.0 nm<Rin(450)?Rout(450)<10.
    Type: Application
    Filed: February 14, 2018
    Publication date: December 19, 2019
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: AKIRA SAKAI, YUICHI KAWAHIRA, KOJI MURATA, MASAHIRO HASEGAWA, TAKAKO KOIDE, KOZO NAKAMURA, KIYOSHI MINOURA
  • Publication number: 20190360954
    Abstract: An information processing apparatus calculates a first temperature of a temperature surface when a heat density of each of a plurality of heating cells is set to a first heat density, calculates a second temperature when heat densities of the plurality of heating cells are set to a second heat density obtained by adding a constant value to each of first heat densities, calculates a change coefficient according to a temperature difference between the first and second temperatures, determines a third heat density so that a third temperature becomes a desired target temperature, based on the change coefficient, determines a width of each of the plurality of heating cells, based on the third heat density, and changes a shape of each of the plurality of heating cells, based on the width by using mesh morphing.
    Type: Application
    Filed: May 2, 2019
    Publication date: November 28, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuyuki Kubota, Akira Sakai
  • Publication number: 20190346607
    Abstract: The present invention provides a retardation substrate which less dissolves a retardation layer, shows good depolarization performance, and has a high voltage holding ratio when used for a liquid crystal element, and a liquid crystal element and a liquid crystal module which include the retardation substrate. The retardation substrate includes: a base material; a retardation layer provided on one surface of the base material; a dielectric layer provided on a surface, opposite to the base material, of the retardation layer; and an alignment film which is provided on a surface, opposite to the retardation layer, of the dielectric layer and subjected to a liquid crystal alignment treatment.
    Type: Application
    Filed: May 30, 2017
    Publication date: November 14, 2019
    Inventors: KOJI MURATA, AKIRA SAKAI, YUICHI KAWAHIRA, KOZO NAKAMURA, MASAHIRO HASEGAWA, TAKAKO KOIDE, KIYOSHI MINOURA
  • Publication number: 20190312510
    Abstract: A converter device includes a rectifier circuit to rectify an AC voltage output from an AC power supply, a booster circuit including a plurality of reactors, a plurality of switching elements, and a plurality of backflow prevention elements to boost an output voltage of the rectifier circuit, a smoothing capacitor to smooth an output voltage of the booster circuit, a bus-current detection circuit to detect a value of a current that flows between the rectifier circuit and the booster circuit, a first filter circuit having a first filter time constant, a second filter circuit having a second filter time constant shorter than the first filter time constant, and a control unit to control an operation of the switching elements as a current value detected by the bus-current detection circuit is input to the control unit via the first filter circuit and the second filter circuit.
    Type: Application
    Filed: December 28, 2016
    Publication date: October 10, 2019
    Inventors: Akito TANAKA, Satoru ICHIKI, Tomohiro KUTSUKI, Daisuke SUZUKI, Akira SAKAI
  • Patent number: 10437106
    Abstract: A liquid crystal display panel (100A) includes a first polarizing plate (22) and a first phase difference plate (32a) disposed on an observer side, and a second polarizing plate (24) and a second phase difference plate (34a) disposed on a back surface side. ?nd of a liquid crystal layer having a homogeneous alignment when no electrical field is applied is 360 nm or greater and 490 nm or less, and an in-plane retardation R1 of the first phase difference plate is 100 nm or greater and 160 nm or less. A thickness direction retardation of at least one of the first and second phase difference plates has a negative value. The slow axes of the first and second phase difference plates are substantially parallel to each other and substantially orthogonal to an azimuthal direction of the liquid crystal director.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: October 8, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Kohzoh Nakamura, Masahiro Hasegawa, Takako Koide, Kiyoshi Minoura
  • Publication number: 20190302520
    Abstract: The present invention provides a color filter substrate in which a step on the surface of the base of a retardation layer and light leakage from a black matrix are prevented and that can prevent parallax color mixture when used in a liquid crystal display device, and a liquid crystal display device including the color filter substrate. The color filter substrate includes a substrate, a metal black matrix disposed on the substrate and provided with an opening, a color layer covering the opening and made of coloring photosensitive resin, and a retardation layer disposed on the color layer.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Inventors: MASAHIRO HASEGAWA, AKIRA SAKAI, TAKAKO KOIDE, YUICHI KAWAHIRA, KOJI MURATA, KIYOSHI MINOURA
  • Publication number: 20190293997
    Abstract: The liquid crystal display panel includes: a first polarizing plate; a first ?/4 plate: a first substrate; a second ?/4 plate; a liquid crystal layer; a second substrate, and a second polarizing plate, wherein the first substrate includes a black matrix, and a photo spacer overlapping with the black matrix, liquid crystal molecules in the liquid crystal layer homogeneously align with no voltage application, the second ?/4 plate is made of a self-assembling photo alignment material containing a photo functional group capable of causing at least one chemical reaction selected from the group consisting of photodimerization, photoisomerization, and photo-Fries rearrangement, and covers a side surface of the photo spacer, and the in-plane slow axis of the first ?/4 plate forms an angle of 45° with the transmission axis of the first polarizing plate and is orthogonal to the in-plane slow axis of the second ?/4 plate.
    Type: Application
    Filed: May 16, 2017
    Publication date: September 26, 2019
    Inventors: YUICHI KAWAHIRA, AKIRA SAKAI, KOZO NAKAMURA, MASAHIRO HASEGAWA, TAKAKO KOIDE, KOJI MURATA, KIYOSHI MINOURA
  • Publication number: 20190285924
    Abstract: The present invention provides a liquid crystal display device configured to prevent impurities in a retardation layer in a liquid crystal cell from dissolving into a liquid crystal layer, achieving excellent reliability. The liquid crystal display device including, in the following order from a viewing surface side toward a back surface side: a first polarizing plate; a first ?/4 retardation layer; a supporting substrate; a second ?/4 retardation layer; a first overcoat layer; an alignment film; a liquid crystal layer containing liquid crystal molecules horizontally aligned with no voltage applied; a TFT substrate including a pair of electrodes configured to generate a transverse electric field in the liquid crystal layer upon voltage application; and a second polarizing plate.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 19, 2019
    Inventors: TAKAKO KOIDE, AKIRA SAKAI, MASAHIRO HASEGAWA, YUICHI KAWAHIRA, KOJI MURATA, KIYOSHI MINOURA
  • Publication number: 20190285925
    Abstract: Provided is a liquid crystal display device including a first substrate; a second substrate; a liquid crystal layer sandwiched between the first substrate and the second substrate and containing a negative liquid crystal material; a first alignment film provided on the surface of the first substrate on the liquid crystal layer side; a first phase difference layer having birefringence provided between the first substrate and the first alignment film; and a second alignment film disposed on the surface of the second substrate on the liquid crystal layer side, wherein at least one of the first alignment film and the second alignment film is a photo-alignment film being in contact with the liquid crystal layer and imparting a pretilt angle of 75° or more and less than 90° to the liquid crystal material; the first phase difference layer is formed of a first polymer material having a first photofunctional group; the photo-alignment film is formed of a second polymer material having a second photofunctional group; a
    Type: Application
    Filed: September 20, 2017
    Publication date: September 19, 2019
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: MASANOBU MIZUSAKI, KIYOSHI MINOURA, AKIRA SAKAI
  • Publication number: 20190278139
    Abstract: A method of fabricating a liquid crystal device (LCD) minimizes changes to optical properties of an internal RM retarder. In exemplary embodiments, the fabricating method comprises depositing a plurality of layers in an optical stack, the plurality of layers including from a viewing side: a first linear polariser; an external retarder; a colour filter substrate; a colour filter layer; an internal reactive mesogen (RM) retarder alignment layer; an internal reactive mesogen (RM) retarder; a liquid crystal (LC) layer; a thin film transistor (TFT) substrate; and a second linear polarizer. Any layer that is deposited after the internal RM retarder on a non-viewing side relative to the color filter substrate, and in direct contact with the internal RM retarder, has a solvent concentration at deposition of less than 15% of a solvent that can alter optical properties of the internal RM retarder (e.g., less than 15% NMP).
    Type: Application
    Filed: March 12, 2018
    Publication date: September 12, 2019
    Inventors: Nathan James Smith, Andrew Acreman, Akira Sakai, Kiyoshi Minoura, Koji Murata, Yuichi Kawahira, Jiyun Yu
  • Publication number: 20190278010
    Abstract: A circularly polarizing plate includes: a first retardation layer having negative refractive index anisotropy; a second retardation layer having positive refractive index anisotropy; and a linear polarizer, the first retardation layer and the second retardation layer being disposed such that their optical axes are parallel to each other, the first retardation layer providing an in-plane retardation whose absolute value is |R1(?)| to light having a wavelength of ? nm, the second retardation layer providing an in-plane retardation whose absolute value is |R2(?)| to light having a wavelength of ? nm, the first retardation layer and the second retardation layer satisfying the following formulas (1) to (4): |R1(450)|>|R1(550)|>|R1(650)|??(1) |R2(550)|>|R1(550)|??(2) |R2(550)|?|R1(550)|>|R2(450)|?|R1(450)|??(3) |R2(650)|?|R1(650)|>|R2(550)|?|R1(550)|??(4)
    Type: Application
    Filed: March 4, 2019
    Publication date: September 12, 2019
    Inventors: AKIRA SAKAI, MASAHIRO HASEGAWA, KOJI MURATA, YUICHI KAWAHIRA, TAKAKO KOIDE, KIYOSHI MINOURA
  • Publication number: 20190278120
    Abstract: A liquid crystal device (LCD) is configured for minimizing unwanted internal ambient light reflections. The LCD includes a plurality of layers, the layers comprising from a viewing side: a first linear polariser; an external retarder that is made of a cyclic olefin polymer (COP) material or a cyclic olefin copolymer (COC) material; a colour filter substrate; a colour filter layer; an internal reactive mesogen (RM) retarder alignment layer; an internal reactive mesogen (RM) retarder; a liquid crystal (LC) layer; and a second linear polarizer. The external retarder and the internal RM retarder are configured such that the optical properties (for example light polarization control function) of the external retarder and the internal retarder are matched to negate each other for light passing through the external retarder and the internal RM retarder. The LCD simultaneously maintains high image quality in both high and low ambient lighting conditions.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 12, 2019
    Inventors: Nathan James Smith, Andrew Acreman, Hywel Hopkin, Kiyoshi Minoura, Koji Murata, Yuichi Kawahira, Akira Sakai, Jiyun Yu