Patents by Inventor Wataru Hoshino

Wataru Hoshino 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: 11982897
    Abstract: A liquid crystal display device includes a first polarizer, a liquid crystal cell, and a second polarizer in this order from a viewing side, in which a first light absorption anisotropic layer is disposed on the viewing side of the liquid crystal cell, a second light absorption anisotropic layer is disposed on a non-viewing side of the liquid crystal cell, the first and second polarizers each have an absorption axis in a film surface, the absorption axis of the first polarizer is orthogonal to the absorption axis of the second polarizer, an angle ?1 between a transmittance central axis of the first anisotropic layer and a normal line of the film is in a range of 0° to 45°, and an angle ?2 between a transmittance central axis of the second anisotropic layer and a normal line of the film is in a range of 0° to 45°.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: May 14, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Naoya Shibata, Naoya Nishimura, Naoyoshi Yamada, Wataru Hoshino, Shinya Watanabe
  • Publication number: 20240141233
    Abstract: A light absorption anisotropic layer which has high contrast and can suppress hue change of an image reflected by surroundings relative to an original image when used in a viewing angle control system, an optical film using the light absorption anisotropic layer, a viewing angle control system, and an image display device. The light absorption anisotropic layer is formed of a liquid crystal composition containing a liquid crystalline compound, a dichroic substance, and an alignment agent. The liquid crystalline compound is in a liquid crystal state of a smectic phase, a content of the dichroic substance is 5.0% by mass or more with respect to a total solid content mass of the liquid crystal composition, and an angle ? between a transmittance central axis of the light absorption anisotropic layer and a normal direction of a surface of the light absorption anisotropic layer is between 0° and 45°.
    Type: Application
    Filed: December 14, 2023
    Publication date: May 2, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO, Shinya WATANABE, Fumitake MITOBE
  • Patent number: 11970649
    Abstract: A liquid crystal composition with a light absorption anisotropic film that has a high alignment degree, a light absorption anisotropic film, a laminate, and an image display device. The liquid crystal composition contains a high-molecular weight liquid crystal compound, and a dichroic substance, where the liquid crystal compound is a copolymer having a repeating unit (1) represented by Formula (1) and a repeating unit (2) represented by Formula (2), where P1 and P2 represent the main chain of the repeating unit, L1 represents a single bond or a divalent linking group, L2 represents a single bond, a divalent alicyclic group or an aromatic group, which may have a substituent, SP1 represents a spacer group, SP2 represents an alkylene group having 10 or more atoms in the main chain, M1 represents a mesogenic group, and T1 and T2 represent a terminal group.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: April 30, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Hiroshi Matsuyama
  • Publication number: 20240125994
    Abstract: A light absorption anisotropic film that, when being applied to an image display device, it is easy to control a region where visibility is high and a region where visibility is low and viewing angle controllability is more excellent, an optical film, and an image display device. The light absorption anisotropic film contains a dichroic substance and a liquid crystal compound, in which the light absorption anisotropic film has a plurality of regions having different directions of transmittance central axes in an in-plane direction of the light absorption anisotropic film, in the plurality of regions, all angles ? between the transmittance central axes and a normal direction of a surface of the light absorption anisotropic film are in a range of 0° to 70°, and any of a specific requirement 1, a specific requirement 2, or a specific requirement 3 is satisfied.
    Type: Application
    Filed: December 4, 2023
    Publication date: April 18, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Shinichi YOSHINARI, Shinya WATANABE
  • Patent number: 11953775
    Abstract: An object of the present invention is to provide a polarizer, a method of producing a polarizer, a laminate, and an image display device which enable achievement of both the degree of alignment and light fastness. The polarizer of the present invention is a polarizer formed of a polarizer-forming composition which contains a liquid crystal compound and a dichroic material, in which the liquid crystal compound is a polymer compound having a smectic liquid crystallinity.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: April 9, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Hiroshi Matsuyama, Jun Takeda
  • Publication number: 20240094570
    Abstract: A light absorption anisotropic layer used in a viewing angle control system which has high image visibility from a desired direction and can sufficiently block images from other directions, an optical film, a viewing angle control system, and an image display device using the light absorption anisotropic layer. The light absorption anisotropic layer is formed of a liquid crystal composition containing a liquid crystalline compound, a dichroic substance, and an alignment agent, in which a content of the dichroic substance is 8.0% by mass or more with respect to a total solid content mass of the liquid crystal composition, and an angle ? between a transmittance central axis of the light absorption anisotropic layer and a normal direction of a surface of the light absorption anisotropic layer is 5° or more and less than 80°.
    Type: Application
    Filed: October 17, 2023
    Publication date: March 21, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Hiroshi MATSUYAMA, Shinichi YOSHINARI
  • Patent number: 11921308
    Abstract: An object of the present invention is to provide a polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer of the present invention is a polarizer which is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the first dichroic material and the second dichroic material are aligned horizontally with respect to a surface of the polarizer, the first dichroic material is a compound compatible with the liquid crystal compound, and the second dichroic material is a compound which is not compatible with the liquid crystal compound.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: March 5, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Yuya Hamaguchi
  • Patent number: 11921369
    Abstract: An object of the present invention is to provide a polarizer having a high degree of alignment and an image display device including the polarizer. A polarizer of the present invention is a polarizer formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: March 5, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Yoshiaki Takada, Yuzo Fujiki, Kengo Saito, Yasuhiro Ishiwata, Takashi Katou, Keisuke Ushirogata
  • Publication number: 20230422616
    Abstract: An object of the present invention is to provide Provided is a light absorption anisotropic film, a laminate, an image display device, and a liquid crystal composition with excellent adhesiveness and a high alignment degree. The light absorption anisotropic film of the present invention is a light absorption anisotropic film is formed of a liquid crystal composition that contains a liquid crystal compound, a dichroic substance, and a boronic acid compound containing a polymerizable group, in which the liquid crystal compound is horizontally aligned.
    Type: Application
    Filed: June 22, 2023
    Publication date: December 28, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO, Naoki KOITO, Aiko YOSHIDA
  • Publication number: 20230418094
    Abstract: The present invention provides a viewing angle control system and a display device that are capable of providing a bright and easy-to-see image in a desired direction, shielding light from the image in a direction other than the desired direction, and limiting reflected glare on window glass, and an optical film therefor. The optical film of the present invention includes a light absorption anisotropic layer formed of a liquid crystal composition containing a thermotropic liquid crystal compound, a dichroic substance, and an interface improver, in which a content of the dichroic substance is 10.0% by mass or greater with respect to a total mass of a solid content of the liquid crystal composition, and an angle ? between a transmittance central axis of the light absorption anisotropic layer and a normal direction of a surface of the optical film is 5° or greater and less than 45°.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 28, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Shinichi YOSHINARI, Hiroshi MATSUYAMA
  • Publication number: 20230417971
    Abstract: A light absorption anisotropic film that displays a bright, clear image in a desired direction and makes the image invisible from other than the desired direction using an image display device, a viewing angle control system formed of the light absorption anisotropic film, and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film includes a light absorption anisotropic layer that contains a liquid crystal compound and an organic dichroic substance, where an angle between an alignment direction of a light absorption axis of the organic dichroic substance on one surface and on the other surface of the light absorption anisotropic layer and a normal line of the light absorption anisotropic layer is defined as ?A and ?B, a difference between the angle ?A and the angle ?B is 15° or less, and the angle ?A is 5° or greater and less than 45°.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 28, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi YOSHINARI, Shinya WATANABE, Naoya SHIBATA, Wataru HOSHINO
  • Publication number: 20230384498
    Abstract: Provided is an optically anisotropic film, an optical film, and a display device, which have a high contrast and excellent light fastness. The optically anisotropic film includes a liquid crystal compound and a dichroic substance, in which the liquid crystal compound is vertically aligned, the dichroic substance forms an arrangement structure, and in a case where, in a cross section observed with a scanning transmission electron microscope, a length of a major axis of the arrangement structure is defined as L, and a length of a minor axis of the arrangement structure is defined as D, 16 or more arrangement structures satisfying L?30 nm are observed per 40 ?m2.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Madoka KAWAI, Shinya WATANABE, Takuya INOUE, Kengo SAITO, Naoya NISHIMURA
  • Patent number: 11822180
    Abstract: Provided is a polarizer having a high degree of alignment and an image display device including the polarizer. The polarizer is formed of a polarizer-forming composition containing a polymer liquid crystal compound and a dichroic material, in which the polymer liquid crystal compound is a thermotropic liquid crystal and a crystalline polymer, and the polymer liquid crystal compound and the dichroic material are horizontally aligned.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: November 21, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino, Teruki Niori
  • Publication number: 20230332048
    Abstract: A light absorption anisotropic film, an optical film, and a liquid crystal display device, with less defects and a high alignment degree even when the concentration of a dichroic substance is increased. The light absorption anisotropic film is formed of a liquid crystal composition containing a liquid crystal compound, a dichroic substance represented by Formula (C-1), a dichroic substance represented by Formula (C-2), in which a total content of the dichroic substances represented by Formula (C-1) and Formula (C-2) is 4.5% by mass or greater with respect to a total mass of a solid content of the liquid crystal composition, and the liquid crystal compound is vertically aligned. When Ra1 and Ra2 represent the same group, —N(Rb11)(Rb12) and —N(Rb21)(Rb22) are groups different from each other. When Ra1 and Ra2 represent different groups, —N(Rb11)(Rb12) and —N(Rb21)(Rb22) may be groups that are the same as or different from each other.
    Type: Application
    Filed: June 22, 2023
    Publication date: October 19, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Naoya NISHIMURA, Shinya WATANABE
  • Patent number: 11789302
    Abstract: A liquid crystal composition with which a light absorption anisotropic film having a high alignment degree can be formed. The light absorption anisotropic film is used with the liquid crystal composition, a laminate, and an image display device. The liquid crystal composition contains a linear polymer liquid crystalline compound having a repeating unit; a low-molecular-weight liquid crystalline compound having a maximum absorption wavelength of 390 nm or less in a solution; and a dichroic substance.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 17, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Teruki Niori
  • Publication number: 20230314854
    Abstract: A light absorption anisotropic film that displays a bright and clear image in a desired direction and makes the image invisible from a direction other than the desired direction using an image display device, a viewing angle control system formed of the light absorption anisotropic film, and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film includes a light absorption anisotropic layer, and a first alignment layer adjacent to the light absorption anisotropic layer, in which the light absorption anisotropic layer contains a liquid crystal compound and an organic dichroic substance, an angle between a transmittance central axis of the light absorption anisotropic layer and a normal line of the light absorption anisotropic layer is 5° or greater and less than 45°, and the first alignment layer is a layer in which a polymerizable liquid crystal compound is hybrid-aligned.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi YOSHINARI, Shinya WATANABE, Naoya SHIBATA, Wataru HOSHINO
  • Publication number: 20230303926
    Abstract: An object of the present invention is to provide a liquid crystal composition capable of forming a light absorption anisotropic layer with an excellent surface state and an excellent alignment degree, a light absorption anisotropic layer, a laminate, and an image display device. The liquid crystal composition is a liquid crystal composition including a liquid crystal compound A represented by Formula (I) Q1-V1-SP1-X1-(Ma-La)na-X2-SP2-V2-Q2, a compound B represented by Formula (II) Q1-V1-SP1-X1-(Mb-Lb)nb-SP3-(Mc-Lc)nc-X2-SP2-V2-Q2, and a dichroic substance.
    Type: Application
    Filed: February 24, 2023
    Publication date: September 28, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO
  • Patent number: 11769736
    Abstract: Apparatuses and methods for manufacturing chips are described. An example method includes: forming at least one first dielectric layer above a substrate; forming at least one second dielectric layer above the first dielectric layer; forming a cover layer above the at least one second dielectric layer; forming a groove above the substrate by etching; covering at least an edge surface of the at least one first dielectric layer in the groove with a liner including polymer; forming a hole through the cover layer and a portion of the at least one second dielectric layer; depositing a conductive layer in the hole, on the cover layer and the liner; and forming a conductive pillar on the conductive layer in the hole by electroplating.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: September 26, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Hidenori Yamaguchi, Keizo Kawakita, Wataru Hoshino, Yuta Nomura
  • Patent number: 11768323
    Abstract: A polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and an array structure formed of the second dichroic material.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: September 26, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Yoshiaki Takada, Yasuhiro Ishiwata, Yuzo Fujiki, Kengo Saito
  • Publication number: 20230265346
    Abstract: An object of the present invention is to provide a liquid crystal composition capable of forming an optically anisotropic layer with suppressed alignment defects and an excellent alignment degree, an optically anisotropic layer, a laminate, and an image display device. The liquid crystal composition of the present invention includes a rod-like liquid crystal compound, and an interface improver having a repeating unit B1 represented by Formula (N-1) and a repeating unit B2 having a fluorine atom. In Formula (N-1), RB11 and RB12 each independently represent a hydrogen atom or a substituent, and RB13 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen atom, or a cyano group. Here, in a case where RB11 and RB12 represent a substituent, RB11 and RB12 may be linked to each other to form a ring.
    Type: Application
    Filed: January 9, 2023
    Publication date: August 24, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Hiroshi MATSUYAMA, Keigo SHIGA