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: 11339329
    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, the polymer liquid crystal compound and the dichroic material are horizontally aligned, and crystallinity of the polymer liquid crystal compound in the polarizer-forming composition is higher than the crystallinity of the polymer liquid crystal compound alone.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: May 24, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Yoshiaki Takada, Kengo Saito
  • Publication number: 20220113596
    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: Application
    Filed: June 3, 2021
    Publication date: April 14, 2022
    Applicant: FUJIFILM Corporation
    Inventor: Wataru HOSHINO
  • Publication number: 20220059346
    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: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Hidenori Yamaguchi, Keizo Kawakita, Wataru Hoshino, Shigeru Sugioka, Toshiyuki Maenosono
  • Publication number: 20220025266
    Abstract: Provided is a polarizer-forming composition from which a polarizer with a high degree of alignment and excellent heat resistance can be formed, a polarizer, and an image display device. The polarizer-forming composition includes a liquid crystal compound, and a dichroic material, in which the liquid crystal compound is a polymer liquid crystal compound, and a content of a component having a number average molecular weight of 1000 or less which is contained in the polymer liquid crystal compound is in a range of 0.10% to 5.0% by mass.
    Type: Application
    Filed: October 5, 2021
    Publication date: January 27, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Hiroshi MATSUYAMA
  • Publication number: 20210324272
    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: Application
    Filed: June 14, 2021
    Publication date: October 21, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO
  • Publication number: 20210309915
    Abstract: The present invention provides 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: Application
    Filed: May 26, 2021
    Publication date: October 7, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Hiroshi MATSUYAMA
  • Publication number: 20210149247
    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: Application
    Filed: December 22, 2020
    Publication date: May 20, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Kengo SAITO, Yuzo FUJIKI, Wataru HOSHINO
  • Publication number: 20210109270
    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 polarizer has an array structure formed of the first dichroic material and an array structure formed of the second dichroic material.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Yoshiaki TAKADA, Yasuhiro ISHIWATA, Yuzo FUJIKI, Kengo SAITO
  • Patent number: 10961328
    Abstract: An optical film including: a cholesteric layer of a disk-like liquid crystal composition including a disk-like liquid crystal compound, in which the cholesteric layer exhibits a cholesteric liquid crystalline phase, and in which fluctuation of a helical pitch in a film thickness direction of the cholesteric layer is 2% or greater, and having a cholesteric liquid crystalline phase of a disk-like liquid crystal compound and a wide reflection bandwidth; a brightness enhancement film; a backlight unit with a brightness enhancement film; and a liquid crystal display device.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: March 30, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Yukito Saitoh, Kunihiro Atsumi
  • Patent number: 10955601
    Abstract: An optical film includes a liquid crystal layer derived from a smectic phase, wherein an Nz factor of the liquid crystal layer is from 0.2 to 0.8. A display device that includes the optical film, and a method of producing an optical film is also provided.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 23, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Kunihiro Atsumi, Yukito Saito, Shinichi Morishima, Wataru Hoshino
  • Patent number: 10946615
    Abstract: An object of the invention is to provide a coloring composition which can form a light absorption anisotropic film having an excellent dichroic ratio, a dichroic dye compound, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound which has a Hansen solubility parameter of 17.5 or greater and has a structure represented by Formula (1), and a liquid crystalline compound. L1-A1-N?N-A2-N?N-A3-L2??(1) in Formula (1), A1, A2, and A3 each independently represent a divalent aromatic group which may have a substituent. Any one of A1, A2, and A3 represents a divalent thienothiazole group which may have a substituent. In Formula (1), L1 and L2 each independently represent a substituent.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 16, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Mizumura, Takashi Katou, Wataru Hoshino
  • Publication number: 20210072443
    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: Application
    Filed: November 17, 2020
    Publication date: March 11, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Yuya HAMAGUCHI
  • Publication number: 20210055604
    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: Application
    Filed: September 22, 2020
    Publication date: February 25, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Yoshiaki TAKADA, Yuzo FUJIKI, Kengo SAITO, Yasuhiro ISHIWATA, Takashi KATOU, Keisuke USHIROGATA
  • Patent number: 10927260
    Abstract: Provided are a coloring composition with which a light absorption anisotropic film having excellent durability can be formed, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound having a structure represented by Formula (1D) and a liquid crystalline compound.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: February 23, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Masaki Ota, Masatoshi Mizumura, Takashi Katou, Yoshiaki Takada, Yoji Ito, Daisuke Kashiwagi, Yuya Hamaguchi
  • Publication number: 20210003884
    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: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Hiroshi MATSUYAMA, Jun TAKEDA
  • Publication number: 20200400996
    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: Application
    Filed: August 31, 2020
    Publication date: December 24, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Hiroshi MATSUYAMA, Jun TAKEDA
  • Publication number: 20200347304
    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: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO, Teruki NIORI
  • Publication number: 20200326590
    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: Application
    Filed: June 25, 2020
    Publication date: October 15, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Naoya SHIBATA, Naoya NISHIMURA, Wataru HOSHINO, Yuzo FUJIKI, Takashi YONEMOTO
  • Publication number: 20200319507
    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: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO, Teruki NIORI
  • Publication number: 20200318010
    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 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, the polymer liquid crystal compound and the dichroic material are horizontally aligned, and crystallinity of the polymer liquid crystal compound in the polarizer-forming composition is higher than the crystallinity of the polymer liquid crystal compound alone.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Yoshiaki TAKADA, Kengo SAITO