Patents by Inventor Takahiro Ohno

Takahiro Ohno 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: 11415510
    Abstract: According to one embodiment, an optical inspection apparatus includes a first illuminator, an image-forming optical system, a scattering light selector, and an imaging element. The first illuminator is configured to emit a first light beam. The first light beam reflected by an object is incident on the image-forming optical system. The scattering light selector is configured to emit passing light beams of at least two mutually different wavelength regions, at the same time as the first light beam passes, a wavelength spectrum of at least one of the passing light beams being different from a wavelength spectrum of the reflected first light beam. The passing light beams simultaneously form an image on the imaging element.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: August 16, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroshi Ohno, Hiroya Kano, Hideaki Okano, Takahiro Kamikawa
  • Patent number: 11208596
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: December 28, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Takahiro Ohno, Makoto Ishiguro, Yoshiaki Hisakado, Hiroshi Sato, Keita Takahashi, Naozumi Shiraiwa, Taiji Katsumata, Hiroshi Matsuyama
  • Publication number: 20200270524
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OHNO, Makoto ISHIGURO, Yoshiaki HISAKADO, Hiroshi SATO, Keita TAKAHASHI, Naozumi SHIRAIWA, Taiji KATSUMATA, Hiroshi MATSUYAMA
  • Patent number: 10689575
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 23, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Takahiro Ohno, Makoto Ishiguro, Yoshiaki Hisakado, Hiroshi Sato, Keita Takahashi, Naozumi Shiraiwa, Taiji Katsumata, Hiroshi Matsuyama
  • Patent number: 9946110
    Abstract: There is provided a liquid crystal display including: a liquid crystal cell in which a liquid crystal layer is installed between two glass substrates; polarizing plates on both surfaces of the liquid crystal cell; and a backlight at a rear side of the liquid crystal cell, which is a non-visual side, wherein in a polarizing plate at a front side of the liquid crystal cell, which is a visual side, a difference in a moisture content of the polarizing plate at the front side under a specific condition in elapse of time is 0.01% or more and 3.0% or less.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: April 17, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Yonemoto, Hiromichi Furukawa, Takahiro Ohno, Megumi Sekiguchi, Mitsuo Osato, Kenichi Fukuda, Daiki Wakizaka
  • Publication number: 20180079958
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OHNO, Makoto ISHIGURO, Yoshiaki HISAKADO, Hiroshi SATO, Keita TAKAHASHI, Naozumi SHIRAIWA, Taiji KATSUMATA, Hiroshi MATSUYAMA
  • Patent number: 9885910
    Abstract: Provided is a liquid crystal display device in which the contrast is improved. The liquid crystal display device includes a first polarizing film, a second polarizing film, a twisted alignment mode liquid crystal and a backlight unit with a light-collecting prism sheet which is disposed on the back side of the liquid crystal cell, the first retardation film and the second retardation film each satisfy Formulae (I) and (II): 1 nm?Re(550)?50 nm??(I) 120 nm?Rth(550)?220 nm??(II); the liquid crystal cell has a depolarizing index (DI value) of 0.000800 or less.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: February 6, 2018
    Assignee: FUJIFILM CORPORATION
    Inventors: Takahiro Ohno, Rikio Inoue
  • Publication number: 20170254938
    Abstract: The present invention addresses the problem of providing a polarizer maintaining an excellent degree of polarization and having high transmittance and excellent durability, and a polarizing plate and an image display device using the same. This polarizer has a polyvinyl alcohol-based resin and iodine included in the polyvinyl alcohol-based resin, in which the thickness of the polarizer is 2 to 20 ?m, the degree of orientation of the polyvinyl alcohol-based resin is 0.11 or more and 0.16 or less, the iodine content is more than 0.50 g/m2 and 1.0 g/m2 or less, and the product of the degree of orientation of the polyvinyl alcohol-based resin and the iodine content is 0.08 g/m2 or more and 0.11 g/m2 or less.
    Type: Application
    Filed: May 18, 2017
    Publication date: September 7, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OHNO, Ryo SATAKE, Michio ARAI, Yuko TERAO
  • Patent number: 9459490
    Abstract: A polarizing plate includes: a polymer film; a polarizer; and a stress relaxation layer disposed between the polymer film and the polarizer, wherein a relationship of the following Expression (1) is satisfied, a thickness of the polymer film is equal to or greater than 10 ?m, a distance(Ds) from the surface of the polarizing plate on the side of the polymer film to the interface between the polymer film and the stress relaxation layer is equal to or greater than 15 ?m, a difference between the distance(Ds) and a thickness(C) of the polymer film is less than 15 ?m, and a total thickness of the polymer film and the stress relaxation layer is equal to or less than 80 ?m, 0.01<B/A<0.9 . . . (1), in Expression (1), A represents the elastic modulus of the polymer film, and B represents the elastic modulus of the stress relaxation layer.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 4, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Tatsuya Oba, Yoshitaka Maeda, Xiao Ling, Shun Inoue, Takahiro Ohno, Yohei Takahashi, Megumi Sekiguchi
  • Patent number: 9453952
    Abstract: A polarizing plate includes an outer protective film and a polarizer. The sum S of the product of the modulus of elasticity and the cube of the thickness in each layer is up to 150,000 Pa·mm3, and the value obtained by dividing the sum S by the Knoop hardness k of the outer protective film is 200 or more but up to 450. The polarizing plate is excellent in surface pencil hardness even when its thickness is reduced.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: September 27, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Takahiro Ohno, Tatsuya Oba, Yoshitaka Maeda, Xiao Ling, Shun Inoue, Megumi Sekiguchi, Yohei Takahashi
  • Patent number: 9341882
    Abstract: Provided is a polarizing plate having improved single plate transmittance under high-temperature and high-humidity conditions, and a liquid crystal display device using the same. A laminate including a polarizer, and an adhesive layer adjoining to at least one surface of the polarizer, the adhesive layer containing a resin and a compound, etc. represented by the formula (1) below.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: May 17, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Mayumi Nojiri, Takahiro Ohno, Nobutaka Fukagawa, Yu Naito, Hiroyuki Ishikawa, Naoya Shimoju
  • Patent number: 9256099
    Abstract: Provided is a polarizer durable against high-temperature and high-humidity conditions, small in changes in the single plate transmittance, and a liquid crystal display device. A polarizer including a polyvinyl alcohol-based resin, a dichroic colorant, and a compound, etc. represented by the formula (1) below, the content of the compound represented by the formula (1) being 0.01 to 30 parts by mass relative to 100 parts by mass of the polyvinyl alcohol-based resin. In the formula (1) , each of R1 and R3 independently represents a hydrogen atom, C1-20 straight-chain alkyl group, C3-20 branched alkyl group, C3-20 cycloalkyl group, C2-20 alkenyl group or C6-20 aromatic group, and R5 represents a substituent.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: February 9, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Mayumi Nojiri, Takahiro Ohno, Nobutaka Fukagawa, Yu Naito, Hiroyuki Ishikawa, Naoya Shimoju
  • Publication number: 20150378073
    Abstract: A polarizing plate includes an outer protective film and a polarizer. The sum S of the product of the modulus of elasticity and the cube of the thickness in each layer is up to 150,000 Pa·mm3, and the value obtained by dividing the sum S by the Knoop hardness k of the outer protective film is 200 or more but up to 450. The polarizing plate is excellent in surface pencil hardness even when its thickness is reduced.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 31, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Takahiro OHNO, Tatsuya OBA, Yoshitaka MAEDA, Xiao LING, Shun INOUE, Megumi SEKIGUCHI, Yohei TAKAHASHI
  • Publication number: 20150301403
    Abstract: A polarizing plate includes: a polymer film; a polarizer; and a stress relaxation layer disposed between the polymer film and the polarizer, wherein a relationship of the following Expression (1) is satisfied, a thickness of the polymer film is equal to or greater than 10 ?m, a distance(Ds) from the surface of the polarizing plate on the side of the polymer film to the interface between the polymer film and the stress relaxation layer is equal to or greater than 15 ?m, a difference between the distance(Ds) and a thickness(C) of the polymer film is less than 15 ?m, and a total thickness of the polymer film and the stress relaxation layer is equal to or less than 80 ?m, 0.01<B/A<0.9 . . . (1), in Expression (1), A represents the elastic modulus of the polymer film, and B represents the elastic modulus of the stress relaxation layer.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 22, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Tatsuya OBA, Yoshitaka MAEDA, Xiao LING, Shun INOUE, Takahiro OHNO, Yohei TAKAHASHI, Megumi SEKIGUCHI
  • Patent number: 9151883
    Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: October 6, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Yamamoto, Aiko Yoshida, Shinya Watanabe
  • Publication number: 20150212368
    Abstract: There is provided a liquid crystal display including: a liquid crystal cell in which a liquid crystal layer is installed between two glass substrates; polarizing plates on both surfaces of the liquid crystal cell; and a backlight at a rear side of the liquid crystal cell, which is a non-visual side, wherein in a polarizing plate at a front side of the liquid crystal cell, which is a visual side, a difference in a moisture content of the polarizing plate at the front side under a specific condition in elapse of time is 0.01% or more and 3.0% or less.
    Type: Application
    Filed: April 10, 2015
    Publication date: July 30, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Takashi YONEMOTO, Hiromichi FURUKAWA, Takahiro OHNO, Megumi SEKIGUCHI, Mitsuo OSATO, Kenichi FUKUDA, Daiki WAKIZAKA
  • Publication number: 20150168780
    Abstract: Provided is a liquid crystal display device in which the contrast is improved. The liquid crystal display device includes a first polarizing film, a second polarizing film, a twisted alignment mode liquid crystal and a backlight unit with a light-collecting prism sheet which is disposed on the back side of the liquid crystal cell, the first retardation film and the second retardation film each satisfy Formulae (I) and (II): 1 nm?Re(550)?50 nm ??(I) 120 nm?Rth(550)?220 nm ??(II); the liquid crystal cell has a depolarizing index (DI value) of 0.000800 or less.
    Type: Application
    Filed: January 20, 2015
    Publication date: June 18, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Takahiro OHNO, Rikio INOUE
  • Patent number: 8906475
    Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 9, 2014
    Assignee: Fujifilm Corporation
    Inventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Yamamoto, Aiko Yoshida, Shinya Watanabe
  • Publication number: 20140318413
    Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Nobutaka FUKAGAWA, Masato NAGURA, Takayasu YASUDA, Takahiro OHNO, Satoshi TANAKA, Aiko YAMAMOTO, Aiko YOSHIDA, Shinya WATANABE
  • Publication number: 20140242302
    Abstract: Provided is a polarizing plate having improved single plate transmittance under high-temperature and high-humidity conditions, and a liquid crystal display device using the same. A laminate comprising a polarizer, and an adhesive layer adjoining to at least one surface of the polarizer, the adhesive layer containing a resin and a compound, etc. represented by the formula (1) below. In the formula (1), each of R1 and R3 independently represents a hydrogen atom, C1-20 straight-chain alkyl group, C3-20 branched alkyl group, C3-20 cycloalkyl group, C2-20 alkenyl group or C6-20 aromatic group, and R5 represents a substituent.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Mayumi NOJIRI, Takahiro OHNO, Nobutaka FUKAGAWA, Yu NAITO, Hiroyuki ISHIKAWA, Naoya SHIMOJU