Patents by Inventor Ryuji Saneto

Ryuji Saneto 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).

  • Publication number: 20210223445
    Abstract: Provided is a reflective sheet that includes a reflective layer having a wide reflection wavelength range, excellent diffusion reflection properties, and inconspicuous defects. The reflective sheet includes a plurality of reflective layers that are laminated, the reflective layers being obtained by immobilizing a cholesteric liquid crystalline phase, in a cross-section of the reflective layer observed with a scanning electron microscope, at least a part of bright portions and dark portions derived from the cholesteric liquid crystalline phase has a flapping structure, a helical pitch in one or more reflective layers changes in a thickness direction, and a thickness of a reflective layer that is formed on a surface other than a surface of the reflective layer is less than those of other reflective layers.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 22, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Makoto ISHIGURO, Hideki KANEIWA, Nobuhiko ICHIHARA, Akira YAMAMOTO, Ryuji SANETO, Michio NAGAI
  • Patent number: 10871596
    Abstract: An antireflection film including: a plastic substrate; and an antireflection layer, where the antireflection layer includes a metal oxide particle and a binder resin, the antireflection layer has a moth eye structure including an uneven shape formed by the metal oxide particle, a total light transmittance of the antireflection film where light is incident from a side of the antireflection layer opposite the plastic substrate is 88% or more, and where transmittances of light at wavelengths of 480 nm and 580 nm of the antireflection film where the light is incident from a side of the antireflection layer opposite the plastic substrate are respectively T480 and T580, T580?T480?3.5% is satisfied, and a method of manufacturing the antireflection film, and an antireflection product, a polarizing plate, an image display device, a module, and a liquid crystal display device with a touch panel, containing the antireflection film.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: December 22, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Chihiro Masuda, Miho Asahi, Yuta Fukushima, Ryuji Saneto
  • Patent number: 10809562
    Abstract: A liquid crystal display device includes a liquid crystal panel including at least a liquid crystal cell and a polarizing plate; and a backlight including at least a light source, in which the polarizing plate includes a polarizer and at least one sheet of protective film, the protective film included in the polarizing plate is positioned closest to the backlight side in the liquid crystal panel, and the protective film positioned closest to the backlight side in the liquid crystal panel is an organic solvent-soluble resin film in which an apparent shear strength measured at a surface on the backlight side is 106 MPa or greater and an apparent shear strength measured at a surface on the polarizer side is 101 MPa or less.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: October 20, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Masato Nagura, Ryuji Saneto, Yuuichi Fukushige
  • Patent number: 10578915
    Abstract: A liquid crystal display device has a liquid crystal panel including a liquid crystal cell and a polarizing plate; and a backlight unit including a light source. An outermost surface of the liquid crystal panel on the backlight unit side is a surface of a protective film included in the polarizing plate, an outermost surface of the backlight unit on the liquid crystal panel side is a surface of a diffusion member, and where an arithmetic mean roughness measured on an outermost surface of the liquid crystal panel on the backlight unit side is Ra1, a pencil hardness is P1, an arithmetic mean roughness measured on an outermost surface of the backlight unit on the liquid crystal panel side is Ra2, and a pencil hardness is P2, Expression 1: 33 nm<Ra1<135 nm, Expression 2: Ra2<15 nm, and Expression 3: P1<P2 are satisfied.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: March 3, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Ryuji Saneto, Yuuichi Fukushige, Masato Nagura, Hitoshi Namikawa, Takashi Tamada
  • Publication number: 20200064647
    Abstract: A light diffraction film includes a transparent substrate; and a light diffraction layer containing a binder resin and particles, in which an average primary particle diameter of the particles is 1 ?m to 10 ?m, and a coverage of a surface of the transparent substrate covered with the particles is 70% to 90%.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Ryuji SANETO, Shuntaro IBUKI, Yoji ITO, Mitsuo OSATO
  • Publication number: 20190391297
    Abstract: A laminate includes a substrate; and a layer (a) containing particles forming a specific uneven shape, the number of particles present on the surface of the layer (a) is 6.3 to 20 per 1 ?m2, and a heat shrinkage rate of the laminate in a case of being heated for one hour at a glass transition temperature of the substrate +10° C. is 20% or more and less than 70%. An antireflection product has a three-dimensional curved surface having a curvature radius of 1 to 1,000 mm, and has a specific uneven shape formed of particles on the three-dimensional curved surface, the number of metal oxide particles present on the three-dimensional curved surface is 9 to 40 per 1 ?m2, and a difference between a maximum value and a minimum value of reflectivities is less than 1.2%.
    Type: Application
    Filed: September 9, 2019
    Publication date: December 26, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Ryuji SANETO, Shuntaro IBUKI, Shusuke ARITA, Yuta FUKUSHIMA
  • Patent number: 10414121
    Abstract: One embodiment of the present invention relates to a hard coat film including a first layer in which a polymer of a polymerizable composition containing at least one polyfunctional polymerizable compound having two or more polymerizable groups in one molecule is detected as a main component and an organic solvent-soluble resin is not detected by composition analysis using a RAMAN spectroscopy; and a second layer adjacent to the first layer, in which an organic solvent-soluble resin and a polymer of a polymerizable composition containing at least one polyfunctional polymerizable compound having two or more polymerizable groups in one molecule are detected by the composition analysis, and a thickness is greater than 15 ?m. Further, the present invention relates to a polarizing plate, an image display device, and a method for producing the hard coat film.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: September 17, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Nobutaka Iwahashi, Ryuji Saneto, Yuuichi Fukushige, Kenta Watanabe
  • Publication number: 20190187336
    Abstract: An antireflection film including: a plastic substrate; and an antireflection layer, where the antireflection layer includes a metal oxide particle and a binder resin, the antireflection layer has a moth eye structure including an uneven shape formed by the metal oxide particle, a total light transmittance of the antireflection film where light is incident from a side of the antireflection layer opposite the plastic substrate is 88% or more, and where transmittances of light at wavelengths of 480 nm and 580 nm of the antireflection film where the light is incident from a side of the antireflection layer opposite the plastic substrate are respectively T480 and T580, T580?T480?3.5% is satisfied, and a method of manufacturing the antireflection film, and an antireflection product, a polarizing plate, an image display device, a module, and a liquid crystal display device with a touch panel, containing the antireflection film.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 20, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Chihiro MASUDA, Miho ASAHI, Yuta FUKUSHIMA, Ryuji SANETO
  • Publication number: 20190004368
    Abstract: A liquid crystal display device includes a liquid crystal panel including at least a liquid crystal cell and a polarizing plate; and a backlight including at least a light source, in which the polarizing plate includes a polarizer and at least one sheet of protective film, the protective film included in the polarizing plate is positioned closest to the backlight side in the liquid crystal panel, and the protective film positioned closest to the backlight side in the liquid crystal panel is an organic solvent-soluble resin film in which an apparent shear strength measured at a surface on the backlight side is 106 MPa or greater and an apparent shear strength measured at a surface on the polarizer side is 101 MPa or less.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 3, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Masato NAGURA, Ryuji SANETO, Yuuichi FUKUSHIGE
  • Patent number: 10156754
    Abstract: A liquid-crystal display device having a backlight unit emitting unpolarized blue light, a light conversion member, a polarization separating member, a backlight-side polarizer, a liquid crystal cell, and a display-side polarizing plate wherein the polarization separating member separates the unpolarized blue light into blue transmitted light and blue reflected light which are linearly polarized in vibration directions that are orthogonal to each other, and transmits some of light in a wavelength range each of 500 nm to 600 nm and 600 nm to 650 nm, the light conversion member includes a fluorescent material that, due to blue light entering the light conversion member, emits green light which is linearly-polarized light and red light which is linearly-polarized light; and a transmission axis of the backlight-side polarizer is parallel to vibration directions of the green and red light, is improved in terms of front surface luminance and color reproduction region.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: December 18, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Ryuji Saneto, Katsufumi Ohmuro
  • Publication number: 20180246376
    Abstract: A liquid crystal display device has a liquid crystal panel including a liquid crystal cell and a polarizing plate; and a backlight unit including a light source. An outermost surface of the liquid crystal panel on the backlight unit side is a surface of a protective film included in the polarizing plate, an outermost surface of the backlight unit on the liquid crystal panel side is a surface of a diffusion member, and where an arithmetic mean roughness measured on an outermost surface of the liquid crystal panel on the backlight unit side is Ra1, a pencil hardness is P1, an arithmetic mean roughness measured on an outermost surface of the backlight unit on the liquid crystal panel side is Ra2, and a pencil hardness is P2, Expression 1: 33 nm<Ra1<135 nm, Expression 2: Ra2<15 nm, and Expression 3: P1<P2 are satisfied.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 30, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Ryuji SANETO, Yuuichi FUKUSHIGE, Masato NAGURA, Hitoshi NAMIKAWA, Takashi TAMADA
  • Patent number: 9946111
    Abstract: A liquid crystal display device improved in front surface luminance, having a backlight unit, a light conversion member, a polarization separating member, a liquid crystal cell, and a display-side polarizer; the backlight unit includes an unpolarized blue light source and a reflection member that converts circularly-polarized to unpolarized blue light and reflects same; the light conversion member includes a circularly polarized luminescence fluorescent material that emits green and red lights which are circularly-polarized; the polarization separating member includes a reflection polarizer that separates the unpolarized blue light into blue transmitted light that is right- or left-circularly-polarized light and blue reflected light that is the other circularly-polarized light and a ?/4 plate that converts the blue transmitted light, the green and red lights, which are circularly-polarized, to linearly-polarized lights; and an absorption axis of the display-side polarizer is parallel to vibration directions o
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 17, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Ryuji Saneto, Katsufumi Ohmuro
  • Publication number: 20180074370
    Abstract: An optical film including an acrylic resin having a lactone ring structure in a main chain thereof and an acrylonitrile-styrene resin, wherein a tensile elastic modulus in a machine direction, which are abbreviated as EMD, and a tensile elastic modulus in a direction perpendicular to the machine direction, which is abbreviated as ETD, satisfy the relationship of Equation (1): Equation (1) EMD/ETD<0.8.
    Type: Application
    Filed: November 7, 2017
    Publication date: March 15, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Ryuji SANETO, Shusuke ARITA, Hiromichi FURUKAWA
  • Patent number: 9733512
    Abstract: A liquid crystal display device, in which a backlight unit, a light conversion member, a selective reflection member, a liquid crystal cell, and a display-side polarizer are disposed in this order, the backlight unit includes a light source that emits unpolarized light having a light emission central wavelength in a wavelength range of 300 nm to lower than 430 nm, the selective reflection member reflects 60% to 100% of the unpolarized light entering the selective reflection member and transmits at least some of light in a wavelength of higher than 430 nm to 650 nm, and the light conversion member includes an aligned fluorescent material that emits blue, green and red light which are linearly polarized in a vibration direction parallel to an absorption axis of the display-side polarizer, is improved in terms of the front surface luminance.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 15, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Ryuji Saneto, Katsufumi Ohmuro
  • Patent number: 9703008
    Abstract: A thin optical film with high hygrothermal durability and high front contrast, includes cellulose acylate whose degree of substitution of acyl group is from 2.0 to 2.6 and at least one optical performance developer, wherein the cellulose acylate has a mannose content of 0.2% by mass or less, and the optical film has a thickness of 40 ?m or thinner and satisfies: MA?MB×1.1??Formula I CA?CB×1.1??Formula II wherein, A denotes the depthwise region ranging from one surface up to 2 ?m depth of the optical film, and B denotes the depthwise region ranging from the other surface up to 2 ?m depth, and MA and MB represent the mannose content in regions A and B; CA and CB represent the content of the optical performance developer in regions A and B; and MA, MB, CA and CB are given in % by mass.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: July 11, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Hirofumi Toyama, Yoshinori Maeda, Isao Fujiwara, Ryuji Saneto
  • Patent number: 9632640
    Abstract: Provided is a transparent laminate which does not have a problem in which a transparent electrode pattern is visually recognized, a capacitance type input device having the transparent laminate, and an image display device provided with the capacitance type input device as a constituent element. The transparent laminate of the invention includes a region where a transparent substrate, a first transparent film which contains a metal oxide and has a film thickness of 55 nm to 110 nm, a transparent electrode pattern, and a second transparent film which contains 5 mass % to 80 mass % of metal oxide particles and has a film thickness of 55 nm to 110 nm are laminated in this order in a plane.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: April 25, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Shinichi Kanna, Ryuji Saneto
  • Patent number: 9632639
    Abstract: Provided is a transparent laminate which does not have a problem in which a transparent electrode pattern is visually recognized, a capacitance type input device having the transparent laminate, and an image display device provided with the capacitance type input device as a constituent element. The transparent laminate of the invention includes a region where a transparent substrate, a first transparent film having a refractive index of 1.6 to 1.78 and a film thickness of 55 nm to 110 nm, a transparent electrode pattern, and a second transparent film having a refractive index of 1.6 to 1.78 and a film thickness of 55 nm to 110 nm are laminated in this order in a plane.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: April 25, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Shinichi Kanna, Ryuji Saneto
  • Publication number: 20160368241
    Abstract: One embodiment of the present invention relates to a hard coat film including a first layer in which a polymer of a polymerizable composition containing at least one polyfunctional polymerizable compound having two or more polymerizable groups in one molecule is detected as a main component and an organic solvent-soluble resin is not detected by composition analysis using a RAMAN spectroscopy; and a second layer adjacent to the first layer, in which an organic solvent-soluble resin and a polymer of a polymerizable composition containing at least one polyfunctional polymerizable compound having two or more polymerizable groups in one molecule are detected by the composition analysis, and a thickness is greater than 15 ?m. Further, the present invention relates to a polarizing plate, an image display device, and a method for producing the hard coat film.
    Type: Application
    Filed: September 2, 2016
    Publication date: December 22, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Nobutaka IWAHASHI, Ryuji SANETO, Yuuichi FUKUSHIGE, Kenta WATANABE
  • Patent number: 9507202
    Abstract: A polarization plate includes a first protective film, a polarizer, and a second protective film in this order, in which the first protective film is a film including a (meth)acryl-based resin, a thickness of the first protective film is in a range of 20 ?m to 30 ?m, a thickness of the second protective film is in a range of 1.5 times to 1.8 times of the thickness of the first protective film, and a humidity dimensional change ratio of the second protective film in the direction orthogonal to an absorption axis of the polarizer is in a range of 0.45% to 0.8%.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: November 29, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Ryuji Saneto, Humitake Mitobe, Jun Noguchi
  • Patent number: 9417477
    Abstract: There is provided a polarizing plate including a first protective film, a polarizer, and a second protective film in this order, in which the first protective film is a film including a synthetic polymer, and has a thickness of 30 ?m or less, an elastic modulus in the TD direction of 2 GPa to 2.5 GPa, and a humidity dimensional change rate in a TD direction of 0.1% or less, and the second protective film has an evaluation value represented by the following Equation (2) of 7.0 to 11.0: Evaluation value=elastic modulus (GPa) of the second protective film in a TD direction/humidity dimensional change rate (%) of the second protective film in the TD direction×(thickness (?m) of the second protective film/thickness (?m) of the first protective film)2×(30/thickness (?m) of the polarizer)1/2 Equation (2).
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: August 16, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Ryuji Saneto, Fumitake Mitobe