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: 11697770
    Abstract: The present invention provides a liquid crystal composition with which a light absorption anisotropic film excellent in plane shape uniformity with a high alignment degree can be formed, a method of producing same, 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 composition is a copolymer containing 90% by mass or more of a repeating unit (1) of Formula (1) and 10% by mass or less of a repeating unit (2) of Formula (2). In Formulae (1) and (2), P1 to P3 represent main chains, L1 to L3 represent a single bond or divalent linking group, P2 to SP3 represent a single bond or spacer group (SP1), M1 to M3 represent mesogenic groups, T1 represents a terminal group, and n and m are integers of 0 or 1.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: July 11, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino
  • Publication number: 20230212460
    Abstract: Provided is a composition for forming a photo-alignment film that improves a surface state of a liquid crystal layer having excellent liquid crystal alignment properties of the liquid crystal layer provided on a photo-alignment film, and an optical laminate formed of the composition. The composition includes a polymer A which has a repeating unit A1 containing a photo-aligned group and a repeating unit A2 containing a cationically polymerizable group, a polymer B which has a repeating unit B1 containing a cationically polymerizable group and does not contain a photo-aligned group, and at least one acid generator selected from the group consisting of a photoacid generator and a thermal acid generator, in which the polymer B has 90% by mass or greater of a repeating unit, in which a hydrogen bond element of a Hansen solubility parameter is less than 10.0, with respect to all repeating units of the polymer B.
    Type: Application
    Filed: March 16, 2023
    Publication date: July 6, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Yoshiaki TAKADA, Wataru HOSHINO, Naoki KOITO
  • Publication number: 20230159827
    Abstract: An object of the present invention is to provide a liquid crystal composition capable of forming an optically anisotropic layer with suppressed cissing during formation of an optically anisotropic layer and an excellent alignment degree, a fluorine-containing polymer, an optically anisotropic layer, a laminate, and an image display device. The liquid crystal composition of the present invention is a liquid crystal composition including a liquid crystal compound and an interface improver, in which the interface improver is a fluorine-containing polymer having a repeating unit B1 represented by Formula (B-1) and a repeating unit B2 having a fluorine atom.
    Type: Application
    Filed: January 9, 2023
    Publication date: May 25, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Keigo SHIGA, Hiroshi MATSUYAMA, Wataru HOSHINO, Yumi KATO
  • Patent number: 11644714
    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 heat resistance. 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 has a smectic liquid crystallinity, and a phase transition temperature of the polarizer-forming composition from a smectic phase to an isotropic phase or a nematic phase is 120° C. or higher.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: May 9, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Hiroshi Matsuyama, Jun Takeda
  • Patent number: 11600578
    Abstract: Apparatuses and methods for manufacturing chips are described. An example method includes: removing a first portion of a cover layer and at least one dielectric layer under the first portion of the cover layer in a cut region between chips to form a groove, and forming a support structure including a second portion of the cover layer and the at least one dielectric layer under the second portion of the cover layer in the cut region; removing a third portion of the cover layer in one of the chips and a portion of the at least one dielectric layer under the third portion of the cover layer to form an hole on the first chip; depositing a conductive layer to cover the cover layer and the hole; forming a conductive pillar on the conductive layer in the hole; and removing the conductive layer on the cover layer and an edge surface of the hole.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: March 7, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Hidenori Yamaguchi, Wataru Hoshino, Keizo Kawakita
  • Publication number: 20230062801
    Abstract: Provided is a composition that is capable of forming a polarizer layer having an excellent degree of alignment and excellent adhesiveness to another layer in a case of being applied to a laminate, a polarizer layer, a laminate, and an image display device. The composition of the present invention is a composition including at least a polymer liquid crystal compound, a dichroic material, and a low-molecular-weight liquid crystal compound, in which the polymer liquid crystal compound is a copolymer having a repeating unit (1) represented by Formula (1), the low-molecular-weight liquid crystal compound is a compound represented by Formula (LC), and relationships represented by Expressions |log P(SP1)?log P(SPL1)|?2.0 (11), |log P(MG1)?log P(SP1)|?4.5 (12), and |log P(ML)?log P(SPL1)|?4.0 (13) are satisfied.
    Type: Application
    Filed: March 2, 2022
    Publication date: March 2, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Yuki HIRAI, Hiroshi MATSUYAMA, Naoya SHIBATA
  • Patent number: 11578270
    Abstract: A side chain type polymer liquid crystalline compound with which a light absorption anisotropic film having a high alignment degree can be formed, which includes a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. A liquid crystalline composition contains a side chain type polymer liquid crystalline compound and a dichroic substance, the side chain type polymer liquid crystalline compound is a copolymer having repeating units 1 and 2, the repeating unit 1 has a mesogenic group and an electron-withdrawing group having a Hammett's substituent constant ?p of greater than 0 at a terminal of the mesogenic group, and the repeating unit 2 has a mesogenic group and a group having a Hammett's substituent constant ?p of 0 or less at a terminal of the mesogenic group.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: February 14, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino, Teruki Niori
  • Publication number: 20230039106
    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: Application
    Filed: September 14, 2022
    Publication date: February 9, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Naoya SHIBATA, Naoya NISHIMURA, Naoyoshi YAMADA, Wataru HOSHINO, Shinya WATANABE
  • Publication number: 20230035147
    Abstract: Provided is an optical laminate used for a viewing angle control system, and an image display device, including a light absorption anisotropic layer formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, a first adjacent layer in contact with one surface of the light absorption anisotropic layer, and a second adjacent layer in contact with a surface of the light absorption anisotropic layer opposite to the one surface, in which a content of the dichroic substance is 7.0% by mass or greater, an angle ?s between a transmittance central axis of the light absorption anisotropic layer and a surface of the light absorption anisotropic layer in a normal direction is in a range of 5° to 60°, and both refractive indices n1 and n2 of the first and second adjacent layers, respectively, are in a range of 1.46 to 1.72.
    Type: Application
    Filed: June 22, 2022
    Publication date: February 2, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Naoyoshi YAMADA, Shinichi YOSHINARI
  • Patent number: 11569089
    Abstract: A method including forming an insulating film over first, second, third and fourth regions of a semiconductor substrate; forming a polyimide film on the insulating film; and patterning the polyimide film with a lithography method using a photomask including at least a first region of a first transmittance rate, a second region of a second transmittance rate, a third region having a shading material, and a fourth region, wherein the first, second, third and fourth regions of the photomask correspond to the first, second, third and fourth regions of the semiconductor substrate, respectively.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: January 31, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Hidenori Yamaguchi, Keizo Kawakita, Wataru Hoshino, Shigeru Sugioka, Toshiyuki Maenosono
  • Publication number: 20230028750
    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: Application
    Filed: August 29, 2022
    Publication date: January 26, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO, Teruki NIORI
  • Patent number: 11543697
    Abstract: Provided are a polarizer having 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 and a dichroic material, in which the liquid crystal compound and the dichroic material are horizontally aligned, and in an X-ray diffraction spectrum of the polarizer, at least one of a plurality of peaks observed in a diffraction angle range of 17° or less is a peak A in which an interval of a periodic structure corresponding to the at least one peak does not have an integer multiple relationship with an interval of a periodic structure corresponding to at least one of other peaks.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: January 3, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Kengo Saito, Yuzo Fujiki, Wataru Hoshino
  • Publication number: 20220389319
    Abstract: Provided are a liquid crystal composition that is capable of forming a light absorption anisotropic film having a low reflectance, and a light absorption anisotropic film, a laminate, and an image display device, each of which is obtained using the liquid crystal composition. The liquid crystal composition contains a side-chain type high-molecular-weight liquid crystalline compound and a dichroic substance, in which the side-chain type high-molecular-weight liquid crystalline compound is a copolymer having a repeating unit M including a mesogenic group and a repeating unit F including a fluorine atom.
    Type: Application
    Filed: July 22, 2022
    Publication date: December 8, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Keigo SHIGA, Wataru HOSHINO, Hiroshi MATSUYAMA, Takashi YONEMOTO
  • Patent number: 11505744
    Abstract: A polymer liquid crystal compound with which a light absorption anisotropic film having a high alignment degree can be formed, a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. The liquid crystalline composition includes a polymer liquid crystal compound which contains a repeating unit represented by Formula (1) and a dichroic substance. In Formula (1), a difference between a log P value of P1, L1, and SP1 and a log P value of M1 is 4 or greater. In Formula (1), P1 represents a main chain of the repeating unit, L1 represents a single bond or a divalent linking group, SP1 represents a spacer group, M1 represents a mesogenic group, and T1 represents a terminal group.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 22, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino, Teruki Niori, Naoya Nishimura
  • Patent number: 11487152
    Abstract: The present invention provides a laminate and an image display device, in which alignment defects of a liquid crystal layer provided on an optical alignment layer are suppressed. The laminate includes an optical alignment layer and a liquid crystal layer provided on the optical alignment layer. In the laminate, the liquid crystal layer is formed from a liquid crystal composition containing a liquid crystal compound and a surfactant, and the liquid crystal compound is immobilized in a horizontal alignment state, and the surfactant is a copolymer having a repeating unit containing a fluorinated alkyl group and having a repeating unit containing a mesogenic group.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: November 1, 2022
    Assignee: FUJIFILM Corporation
    Inventor: Wataru Hoshino
  • Publication number: 20220344278
    Abstract: Apparatuses and methods for manufacturing chips are described. An example method includes: removing a first portion of a cover layer and at least one dielectric layer under the first portion of the cover layer in a cut region between chips to form a groove, and forming a support structure including a second portion of the cover layer and the at least one dielectric layer under the second portion of the cover layer in the cut region; removing a third portion of the cover layer in one of the chips and a portion of the at least one dielectric layer under the third portion of the cover layer to form an hole on the first chip; depositing a conductive layer to cover the cover layer and the hole; forming a conductive pillar on the conductive layer in the hole; and removing the conductive layer on the cover layer and an edge surface of the hole.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Hidenori Yamaguchi, Wataru Hoshino, Keizo Kawakita
  • Publication number: 20220336372
    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: Application
    Filed: April 14, 2021
    Publication date: October 20, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Hidenori Yamaguchi, Keizo Kawakita, Wataru Hoshino, Yuta Nomura
  • Patent number: 11467442
    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. The polarizer according to the embodiment of the present invention is a polarizer which 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: June 22, 2020
    Date of Patent: October 11, 2022
    Inventors: Hiroshi Matsuyama, Wataru Hoshino, Teruki Niori
  • Publication number: 20220213385
    Abstract: Provided is a composition for forming a polarizer from which a polarizer with an excellent surface state can be formed, a polarizer, a laminate, and an image display device. The composition for forming a polarizer includes a polymerizable liquid crystal compound which has two or more rings selected from the group consisting of an aromatic ring and an alicyclic ring and two polymerizable groups and exhibits a liquid crystal state of a smectic phase, a monofunctional polymerizable compound which has two or more rings selected from the group consisting of an aromatic ring and an alicyclic ring and one polymerizable group, and a dichroic material, in which the number of atoms NA of the polymerizable liquid crystal compound and the number of atoms NB of the monofunctional polymerizable compound satisfy Expression (1), 0.35?NB/NA?0.65 (1).
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Atsuro NOMOTO
  • Patent number: 11378838
    Abstract: An object of the present invention is to provide a method for manufacturing an optical laminate in which an alignment defect is less likely to occur in a light-absorbing anisotropic layer even in a case where a surface of a photo-alignment layer is rubbed; an optical laminate; and an image display device. The method for manufacturing an optical laminate according to an embodiment of the present invention is a method for manufacturing an optical laminate in which an optical laminate including a photo-alignment layer and a light-absorbing anisotropic layer and having a front transmittance of 60% or less is produced and which includes a photo-alignment layer formation step of forming a photo-alignment layer on a polymer film, and a light-absorbing anisotropic layer formation step of applying a liquid crystal composition containing a dichroic substance and a high-molecular liquid crystalline compound onto the photo-alignment layer to form a light-absorbing anisotropic layer.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: July 5, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Naoya Shibata, Naoya Nishimura, Wataru Hoshino, Yuzo Fujiki, Takashi Yonemoto