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: 10988855
    Abstract: A plating apparatus capable of preventing difference in an electrode potential between the pair of cathodes and a disturbance in a current distribution in Haring cell test and so on is provided. A plating apparatus (1) has an anode (12) and a pair of cathodes (13X) (13Y) which are provided in a plating bathtub (11); a plating power source (14) to supply an electric current between the anode (12) and the pair of cathodes (13X) (13Y); and a feedback circuit (21) to have an electrode potential of a first cathode (13X) equal to an electrode potential of a second cathode (13Y) while a summation of electric currents flowing through the pair of cathodes (13X) (13Y) is kept constant.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 27, 2021
    Assignee: YAMAMOTO-MS Co., Ltd.
    Inventors: Wataru Yamamoto, Kimiko Koiwa, Katsunori Akiyama, Masazumi Ishiguro, Yoshiaki 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: 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
  • 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
  • Patent number: 10745507
    Abstract: An object of the invention is to provide a coloring composition with which a light absorption anisotropic film maintaining an excellent dichroic ratio and having good pressing resistance can be formed, and a light absorption anisotropic film, a laminate, and an image display device using the coloring composition. A coloring composition according to the invention contains: a polymer compound having a repeating unit including a crosslinkable group and a mesogenic group in the same side chain, or a polymer compound separately having a repeating unit including a crosslinkable group in a side chain and a repeating unit including a mesogenic group in a side chain; and a dichroic dye compound.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 18, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Yoshiaki Takada, Jyunko Ibaraki
  • Publication number: 20200172810
    Abstract: A liquid crystal composition contains a side chain type polymer liquid crystalline compound which can form a light absorption anisotropic film having a high alignment degree and has excellent solubility in a general-purpose solvent, a light absorption anisotropic film obtained using the composition, a laminate, and an image display device. The composition includes: a side chain type polymer liquid crystalline compound; and a dichroic substance, in which the compound is a copolymer having a repeating unit (1) containing a mesogenic group with a molecular weight of greater than 280 and a repeating unit (2) with a molecular weight of 280 or less, a content of the repeating unit (2) is less than 14% by mass with respect to a total mass of the compound, and a content of the dichroic substance is greater than 2% by mass with respect to a total solid content of the composition.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 4, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Wataru HOSHINO, Teruki NIORI
  • Publication number: 20200033663
    Abstract: An object of the invention is to provide a liquid crystal composition with which a light absorption anisotropic film having a high alignment degree can be formed, a light absorption anisotropic film which is provided using the liquid crystal composition, a laminate, and an image display device. A liquid crystal composition according to an embodiment of the invention 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: Application
    Filed: October 8, 2019
    Publication date: January 30, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Teruki NIORI
  • Patent number: 10537128
    Abstract: A yeast extract containing 0.2% or more of ?-Glu-Abu based on dry weight of the yeast extract is produced by culturing a yeast, such as Saccharomyces cervisiae or Candida utilis, in a medium containing a compound selected from Abu (L-2-aminobutyric acid) and ?-Glu-Abu (L-?-glutamyl-L-2-aminobutyric acid), and preparing a yeast extract from the obtained cells.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: January 21, 2020
    Assignee: AJINOMOTO CO., INC.
    Inventors: Hiroaki Nishiuchi, Misato Morita, Wataru Hoshino, Junko Yamazaki, Takayuki Ito, Kazuo Yamagishi
  • Publication number: 20200018879
    Abstract: An object of the invention is to provide an anisotropic light absorption film having both a high alignment degree and high light resistance, and a laminate provided using the anisotropic light absorption film. An anisotropic light absorption film according to the embodiment of the invention is formed from a composition having a first dichroic azo dye, a second dichroic azo dye, and a compound represented by Formula (I) or a polymer thereof, the first dichroic azo dye has a solution absorption maximum wavelength of 400 nm or greater and less than 550 nm, the second dichroic azo dye has a solution absorption maximum wavelength of 550 nm or greater and 750 nm or less, and the film has an arrangement structure of the first dichroic azo dye or an arrangement structure of the second dichroic azo dye therein.
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Yumi KATOU, Shinichi MORISHIMA, Wataru HOSHINO, Jun TAKEDA, Kengo SAITO, Yuzo FUJIKI
  • Patent number: 10495791
    Abstract: The present invention provides an optical film including a light reflection layer, in which the light reflection layer is a layer in which alignment of liquid crystal molecules is immobilized, the liquid crystal molecule forms a helical structure in a film thickness direction of the light reflection layer, and a tilt angle of the liquid crystal molecule is 15° to 55°. The present invention also provides a manufacturing method of the optical film including curing a polymerizable liquid crystal composition including a liquid crystal compound and a chiral agent interposed between a support and another support. In the optical film according to the present invention, an absolute value of oblique retardation is smaller. In the liquid crystal display device including the optical film, front surface brightness is high and an oblique change in the shade is suppressed.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: December 3, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saitoh, Hideyuki Nishikawa, Kunihiro Atsumi, Wataru Hoshino, Yoshiaki Takada