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: 20220197091
    Abstract: A liquid crystal display device includes, in order from an observation surface side to a hack surface side, a thin film transistor substrate including a color filter layer, a pair of electrodes, and a metal wiring line, a liquid crystal layer containing liquid crystal molecules that are horizontally aligned to the thin film transistor substrate and in which alignment of the liquid crystal molecules is changed due to an electric field generated by applying a voltage to the pair of electrodes, a counter substrate, and a backlight, in which the counter substrate includes a reflective layer disposed outside the pixel area and reflecting incident light from the backlight to the back surface side, the pair of electrodes are a first electrode having a planar shape and a second electrode provided with a and the color filter layer is disposed on the observation surface side of the second electrode.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 23, 2022
    Inventors: YUICHI KAWAHIRA, AKIRA HIRAI, AKIRA SAKAI, KAZUTOSHI KIDA, YASUHIRO SUGITA
  • Publication number: 20220179144
    Abstract: In a flexible display device, a transistor layer, a light-emitting element layer, a sealing layer, a first flexible substrate, a ?/4 layer, a linear polarizer, an overcoat layer, and a water repellent layer are provided in this order on a second flexible substrate, and the water repellent layer is provided so as to overlap with at least an end portion of the overcoat layer.
    Type: Application
    Filed: April 16, 2019
    Publication date: June 9, 2022
    Inventors: MIHO YAMADA, MASAHIRO HASEGAWA, AKIRA SAKAI
  • Patent number: 11347118
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer plate, and a second polarizer plate. The first substrate includes a first dielectric substrate, a first electrode, a second electrode, and a first alignment film. The second electrode includes a plurality of slits and a conductive portion. The second substrate includes a second dielectric substrate and a second alignment film. The first substrate further includes a resin layer disposed between the second electrode and the first alignment film. The resin layer within the plurality of slits is as thick as or thicker than the second electrode. The plurality of slits are filled with the resin layer. A difference in height between the resin layer over the conductive portion of the second electrode and the resin layer within the plurality of slits of the second electrode is 10 nm or more.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: May 31, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Miho Yamada, Yuichi Kawahira, Koji Murata, Kiyoshi Minoura
  • Publication number: 20220152506
    Abstract: A non-transitory computer readable recording medium having instructions stored therein that cause at least one processor of a game apparatus to: progress a video game; initiate a period for supporting to receive support for a specific object of the video game, when a game state of the video game that is progressed based on a user input corresponds to a specific game state; acquire support information from a terminal apparatus communicably connectable with the game apparatus in the period for supporting, the support information being based on a specific input made to the terminal apparatus; and change an ability associated with the specific object based on the support information.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Applicant: Konami Digital Entertainment Co., Ltd.
    Inventors: Shigeru CHIBA, Kai INOUE, Junki HIRAI, Akira SAKAI
  • Publication number: 20220158141
    Abstract: A display device includes an active matrix substrate including a transistor element and a light-emitting element layer provided on the active matrix substrate and including a first electrode, a second electrode, a function layer including a light-emitting layer between the first electrode and the second electrode, and a sealing layer. The display device includes: a half mirror provided on a display surface side of the light-emitting element layer; and a first ?/4 plate, a reflective polarizer, and an absorbing polarizer which are provided in order from the light-emitting element layer side between the light-emitting element layer and the half mirror.
    Type: Application
    Filed: March 1, 2019
    Publication date: May 19, 2022
    Inventors: RYUZO YUKI, Kiyoshi MINOURA, KOHZOH NAKAMURA, AKIRA SAKAI
  • Patent number: 11327357
    Abstract: A liquid crystal display device of the present invention includes in the following order from a viewing surface side a first polarizer, a first positive A plate having an in-plane retardation of 120 nm or greater and 155 nm or smaller, a positive C plate having a thickness retardation of 80 nm or greater and 100 nm or smaller, a first substrate, a second positive A plate having an in-plane retardation of 120 nm or greater and 155 nm or smaller, a horizontally aligned liquid crystal layer, a second substrate, a viewing angle compensation layer, and a second polarizer. The device further includes between the first polarizer and the first positive A plate a positive C plate having a thickness retardation of 30 nm or greater and 80 nm or smaller.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: May 10, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro Hasegawa, Akira Sakai, Takako Koide, Yuichi Kawahira, Koji Murata, Kiyoshi Minoura
  • Patent number: 11320573
    Abstract: In order to make a step of forming an coated-type polarizer easier, provided is a display device including, from a lower layer, a TFT layer, a light-emitting layer, a sealing layer, and a polarization layer in this order, in which the polarization layer includes a polymerizable liquid crystal layer containing a polymerizable liquid crystal into which a dichroic pigment is mixed and an alignment film coming in contact with a portion of the polymerizable liquid crystal layer to align the polymerizable liquid crystal contained in the polymerizable liquid crystal layer with which the alignment film is in contact, and in a display region, a region in which the polymerizable liquid crystal layer and the alignment film of the polarization layer come into contact with each other is a polarization portion, and in a frame region surrounding the display region, a region in which the polymerizable liquid crystal layer and the alignment film of the polarization layer do not come in contact with each other is a black fr
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 3, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa
  • Publication number: 20220128167
    Abstract: A valve portion has a sleeve and a valve body inserted into the sleeve. A solenoid portion includes a stator core having a magnetic attraction core, a sliding core, a magnetic flux passage suppressing portion, a yoke having a bottom portion, a side surface portion, and a thin wall portion, a coil portion, a plunger, and a magnetic tubular base portion. The base portion has a first tubular portion in which a first outer peripheral surface of the sleeve is press-fitted into inside and fastened to the first outer peripheral surface, a flange portion that has an outer diameter larger than the outer diameter of the first tubular portion, is arranged on an outer side in a radial direction of a second outer peripheral surface of the magnetic attraction core, and is caulked and fixed to the thin wall portion while being in contact with the yoke inside the yoke.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Inventor: Akira SAKAI
  • Publication number: 20220132186
    Abstract: A program recorded on a computer-readable recording medium causes a processor of a server apparatus communicable with a game apparatus capable of executing a game and delivering a video to a terminal apparatus, to perform a method of: acquiring, from a game apparatus that executes a game, video information indicating a game video of the game; and delivering, to the terminal apparatus, the game video indicated by the video information. The delivering includes, with the game apparatus having generated specific information indicating that the game video is a specific video, delivering to the terminal apparatus a specific advertisement for a specific commercial item associated with the specific video in response to acquiring the video information and the specific information from the game apparatus.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Applicant: Konami Digital Entertainment Co., Ltd.
    Inventors: Akira SAKAI, Shigeru CHIBA, Kai INOUE, Junki HIRAI, Jun MURAI
  • Publication number: 20220121066
    Abstract: The liquid crystal display device includes, sequentially from a viewing surface side to a back surface side: a linearly polarizing plate and a circularly polarizing plate including a first ?/4 retardation layer; a thin-film transistor substrate including a pair of electrodes disposed in a pixel region and a metal line disposed outside the pixel region; a liquid crystal layer containing liquid crystal molecules aligned parallel to the thin-film transistor substrate, alignment of the liquid crystal molecules varying in response to an electric field generated by application of voltage to the pair of electrodes; a color filter substrate including a color filter layer; and a backlight, the thin-film transistor substrate including a second ?/4 retardation layer, the color filter substrate including a reflective layer disposed outside the pixel region and configured to reflect incident light from the backlight toward the back surface.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 21, 2022
    Inventors: YUICHI KAWAHIRA, TAKAKO KOIDE, MASAHIRO HASEGAWA, AKIRA HIRAI, AKIRA SAKAI, KIYOSHI MINOURA
  • Patent number: 11307463
    Abstract: The liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate includes a first dielectric substrate, a first electrode and a second electrode provided on the first dielectric substrate and capable of generating a horizontal electric field in the liquid crystal layer, and a first alignment film being in contact with the liquid crystal layer. The second substrate includes a second dielectric substrate and a second alignment film provided on the second dielectric substrate and being in contact with the liquid crystal layer. The first alignment film has an azimuthal anchoring strength lower than the second alignment film. The liquid crystal layer includes a nematic liquid crystal material and a polymer network.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: April 19, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Koji Murata, Kiyoshi Minoura, Akira Sakai, Yuichi Kawahira, Kohzoh Nakamura
  • Patent number: 11307337
    Abstract: The present invention provides: (I) a display device including a display panel, a retardation layer, and a polarizer which are stacked in the stated order from a back surface side to a viewing surface side and integrated without an adhesive layer; and (II) a method for producing a display device including: forming a first alignment film on a display panel, applying a solution containing first polymerizable liquid crystal to the first alignment film, and curing the first polymerizable liquid crystal to produce a retardation layer; and forming a second alignment film on the retardation layer, applying a solution containing second polymerizable liquid crystal and a dichroic material to the second alignment film, and curing the second polymerizable liquid crystal to produce a polarizer.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: April 19, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Atsushi Ban, Koji Murata, Yuichi Kawahira, Kiyoshi Minoura, Takako Koide, Kozo Nakamura
  • Publication number: 20220114347
    Abstract: A computer: acquires, from a compression dictionary that associates each of codes having a length according to a frequency of appearance of a set of a word and a word meaning of the word with that set, the set of any word and that word meaning, and one of the codes associated with the set of the any word and that word meaning; selects, from among a plurality of fixed-length codes stored in the memory with a same length in association with the set of the word and that word meaning, one of the fixed-length codes associated with the set of the any word and that word meaning; generates a conversion dictionary that associates the selected one of the fixed-length codes with the acquired one of the codes; and specifies, by the conversion dictionary, the individual fixed-length codes associated with each of the codes contained in compressed data.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro Kataoka, Satoshi Onoue, Akira Sakai
  • Patent number: 11291431
    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: Grant
    Filed: August 20, 2019
    Date of Patent: April 5, 2022
    Assignees: FUJITSU LIMITED, RIKEN, SHOWA UNIVERSITY, NATIONAL CANCER CENTER
    Inventors: Masaaki Komatsu, Hiroyuki Yoshida, Akira Sakai, Akihiko Sekizawa, Ryu Matsuoka, Ryuji Hamamoto
  • Publication number: 20220043301
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer plate, and a second polarizer plate. The first substrate includes a first dielectric substrate, a first electrode, a second electrode, and a first alignment film. The second electrode includes a plurality of slits and a conductive portion. The second substrate includes a second dielectric substrate and a second alignment film. The first substrate further includes a resin layer disposed between the second electrode and the first alignment film. The resin layer within the plurality of slits is as thick as or thicker than the second electrode. The plurality of slits are filled with the resin layer. A difference in height between the resin layer over the conductive portion of the second electrode and the resin layer within the plurality of slits of the second electrode is 10 nm or more.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 10, 2022
    Inventors: Akira SAKAI, Masahiro HASEGAWA, Miho YAMADA, Yuichi KAWAHIRA, Koji MURATA, Kiyoshi MINOURA
  • Publication number: 20210373382
    Abstract: Provided is a liquid crystal display device and a polarizing plate capable of improving the contrast ratio in the front direction. The polarizing plate includes a pair of polarizers including a first polarizer and a second polarizer whose transmission axes are parallel to each other; a retarder between the paired polarizers; and a diffusion layer in at least one of a region between the paired polarizers or a region on a side without the retarder of the first polarizer.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 2, 2021
    Inventors: Akira Sakai, Yuichi Kawahira, Masahiro Hasegawa, Kiyoshi Minoura
  • Patent number: 11181770
    Abstract: A liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizing plate, and a second polarizing plate. The first substrate includes a first dielectric substrate, first and second electrodes, provided over the first dielectric substrate and configured to generate a transverse electric field in the liquid crystal layer, at least either of which has a plurality of slits, and a first alignment film placed in contact with the liquid crystal layer. The first substrate further includes an inorganic insulating layer provided between the second electrode and the first alignment film. The difference between the refractive index of the inorganic insulating layer and the refractive index of the second electrode is smaller than or equal to 0.20. The thickness of the inorganic insulating layer is greater than or equal to 50% of the thickness of the second electrode and greater than or equal to 40 nm.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: November 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Masahiro Hasegawa, Miho Yamada, Koji Murata, Kiyoshi Minoura
  • Publication number: 20210349346
    Abstract: A method of fabricating a reactive mesogen (RM) guest-host polarizer is disclosed. The method includes forming an RM guest-host polarizer material on a substrate that promotes a substantially uniform planar alignment configuration of the RM guest-host molecules, forming a temporary layer on the RM guest-host polarizer material to align RM guest-host molecules of the RM guest-host polarizer material in the substantially uniform planar alignment configuration, performing polymerization of the RM guest-host polarizer material, and removing the temporary layer from the RM guest-host polarizer. The temporary layer includes at least one of a temporary fluid layer, a temporary particulate layer, a temporary gaseous layer, a temporary vacuum layer, and a temporary alignment substrate layer.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 11, 2021
    Inventors: NATHAN JAMES SMITH, ANDREW ACREMAN, ENRICO ANGIONI, MIHO YAMADA, AKIRA SAKAI
  • Patent number: 11169419
    Abstract: A photo-alignment film of the present invention includes a polymer layer containing a photoreactive polymer and metal nanoparticles dispersed in the polymer layer at a concentration of 109 particles/(cm2×100 nm) or more and 1019 particles/(cm2×100 nm) or less. The metal nanoparticles have an absorption peak in a wavelength region of 420 nm or less. An absorbance A1 at the absorption peak of the metal nanoparticles and an absorbance A2 at an absorption peak of the polymer layer satisfy a relationship represented by the following formula 1: 0.2?A1/A2?25??(Formula 1).
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: November 9, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Koji Murata, Akira Sakai, Yuichi Kawahira, Takako Koide, Masahiro Hasegawa, Kiyoshi Minoura
  • Publication number: 20210341787
    Abstract: A circular polarizer according to the disclosure includes a ?/4 layer, and a polarization layer that is layered on the ?/4 layer and includes a lyotropic liquid crystal, and an overcoat layer covering an upper surface and a side surface of the polarization layer and a side surface of the ?/4 layer is formed.
    Type: Application
    Filed: September 28, 2018
    Publication date: November 4, 2021
    Inventors: MASAHIRO HASEGAWA, MIHO YAMADA, AKIRA SAKAI