Patents by Inventor Naoya Shibata

Naoya Shibata 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: 20240142682
    Abstract: A light absorption anisotropic layer which has a high S/N ratio for generating polarized light with respect to rays in an infrared wavelength region, is lightweight, and has excellent handleability, a laminate, and a sensor system including the light absorption anisotropic layer or the laminate. The light absorption anisotropic layer contains a dichroic coloring agent having a maximal absorption at a wavelength of 700 to 1500 nm, in which an average absorbance at a wavelength of 850 nm is 0.24 to 0.50 and a thickness is 5 ?m or less.
    Type: Application
    Filed: October 4, 2023
    Publication date: May 2, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Mayumi NOJIRI, Ayako MURAMATSU, Naoya SHIBATA, Yuki HIRAI, Ryoji HIMENO, Shinichi MORISHIMA, Takashi KATOU
  • Publication number: 20240134192
    Abstract: An image projection system in which a projection image is easier to see. An image projection system includes an image projection device which emits projection light that is linearly polarized light; a screen which is irradiated with the projection light emitted from the image projection device; and a light absorption anisotropic layer which is disposed between the image projection device and the screen and through which the projection light passes, the light absorption anisotropic layer contains a dichroic substance, and a transmittance central axis of the light absorption anisotropic layer is in a direction toward the screen.
    Type: Application
    Filed: December 4, 2023
    Publication date: April 25, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi YOSHINARI, Naoya SHIBATA, Shinya WATANABE
  • Publication number: 20240094452
    Abstract: A light absorption anisotropic layer in which, when combined with a ?/4 plate to form a circularly polarizing plate, applying the circularly polarizing plate to a display device, and displaying a display screen in black, coloration is suppressed and utilization efficiency of infrared light is high, a laminate including the light absorption anisotropic layer, a display device, an infrared light irradiation device, and an infrared light sensing device. The light absorption anisotropic layer contains an organic dichroic coloring agent, and satisfies expressions (1) to (4). (1) P(450)>99%, (2) P(550)>99%, (3) P(650)>99%, and (4) A(750)<0.2, here, P(450) represents a polarization degree at a wavelength of 450 nm, P(550) represents a polarization degree at a wavelength of 550 nm, P(650) represents a polarization degree at a wavelength of 650 nm, and A(750) represents an average absorbance at a wavelength of 750 nm.
    Type: Application
    Filed: October 4, 2023
    Publication date: March 21, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Naoya SHIBATA, Takashi KATOU, Naoya NISHIMURA, Naoki KOITO
  • Publication number: 20240069264
    Abstract: Provided is a laminate capable of reducing a change in hue of a reflected image in the surroundings (for example, window glass) from an original image, suppressing a hue shift of particularly the reflected image to redness, and suppressing the reflected image from being conspicuous, a reflection prevention system including this laminate, and an image display device including this laminate. The laminate includes a polarizer having an absorption axis in an in-plane direction, a light absorption anisotropic layer containing a liquid crystal compound and a dichroic substance, and a linear polarization conversion layer, in which an angle between a transmittance central axis of the light absorption anisotropic layer and a normal line of a layer plane of the light absorption anisotropic layer is 0° or greater and 45° or less.
    Type: Application
    Filed: August 22, 2023
    Publication date: February 29, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi YOSHINARI, Naoyoshi YAMADA, Naoya NISHIMURA, Shinya WATANABE, Naoya SHIBATA
  • Publication number: 20240004426
    Abstract: Provided is an image display device that includes a plurality of image display units disposed adjacent to each other and is capable of reducing an interval between image display surfaces of the adjacent image display units. The image display device includes a plurality of image display units and polarizers disposed on image display surface sides of the image display units, in which the image display units are disposed adjacent to each other, and the polarizers contain a dichroic substance and a liquid crystal compound.
    Type: Application
    Filed: September 7, 2023
    Publication date: January 4, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Naoyoshi YAMADA, Naoya SHIBATA
  • Publication number: 20230417971
    Abstract: A light absorption anisotropic film that displays a bright, clear image in a desired direction and makes the image invisible from other than the desired direction using an image display device, a viewing angle control system formed of the light absorption anisotropic film, and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film includes a light absorption anisotropic layer that contains a liquid crystal compound and an organic dichroic substance, where an angle between an alignment direction of a light absorption axis of the organic dichroic substance on one surface and on the other surface of the light absorption anisotropic layer and a normal line of the light absorption anisotropic layer is defined as ?A and ?B, a difference between the angle ?A and the angle ?B is 15° or less, and the angle ?A is 5° or greater and less than 45°.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 28, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi YOSHINARI, Shinya WATANABE, Naoya SHIBATA, Wataru HOSHINO
  • Publication number: 20230314854
    Abstract: A light absorption anisotropic film that displays a bright and clear image in a desired direction and makes the image invisible from a direction other than the desired direction using an image display device, a viewing angle control system formed of the light absorption anisotropic film, and an image display device formed of the light absorption anisotropic film. The light absorption anisotropic film includes a light absorption anisotropic layer, and a first alignment layer adjacent to the light absorption anisotropic layer, in which the light absorption anisotropic layer contains a liquid crystal compound and an organic dichroic substance, an angle between a transmittance central axis of the light absorption anisotropic layer and a normal line of the light absorption anisotropic layer is 5° or greater and less than 45°, and the first alignment layer is a layer in which a polymerizable liquid crystal compound is hybrid-aligned.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 5, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi YOSHINARI, Shinya WATANABE, Naoya SHIBATA, Wataru HOSHINO
  • Patent number: 11768324
    Abstract: Provided is a light absorption anisotropic layer including a dichroic substance, in which a transmittance as viewed from a front direction is high and a transmittance as viewed from an oblique direction can be lowered, a laminate, an optical film, an image display device, and a backlight module. The light absorption anisotropic layer includes a liquid crystalline compound and at least one dichroic substance, in which the dichroic substance is aligned perpendicular to the film surface, and an alignment degree of the light absorption anisotropic layer at a wavelength of 550 nm is 0.95 or more.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: September 26, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Fumitake Mitobe, Naoya Nishimura, Takashi Katou, Naoya Shibata
  • Publication number: 20230288623
    Abstract: Provided is an optical film and an optical laminate that achieve an image display device capable of an antireflection effect of external light and improvement of utilization efficiency of light emitted by a light emitting element when applied to a self-emission type image display device formed of an inorganic EL element, an organic EL element, or the like. The optical film includes a light absorption anisotropic film consisting of a cured substance of a liquid crystal composition that contains a polymerizable liquid crystal compound and a dichroic coloring agent compound, in which the light absorption anisotropic film has, in the same film surface, regions A and B where an inclination of an absorption axis with respect to a film surface is ?A and ?B, respectively, and ?A and ?B satisfy relationships of Expressions (1) |?A??B|?10° and (2) 0°??B?5°.
    Type: Application
    Filed: April 26, 2023
    Publication date: September 14, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Naoki KOITO, Naoya SHIBATA
  • Publication number: 20230213695
    Abstract: An object of the present invention is to provide a laminate which includes a light absorption anisotropic layer and an optically anisotropic layer and has excellent moisture-heat resistance, and a polarizing plate and an image display device which are formed of the laminate. The laminate of the present invention is a laminate including a light absorption anisotropic layer and an optically anisotropic layer, in which the light absorption anisotropic layer contains an organic dichroic substance, the optically anisotropic layer consists of a liquid crystal layer, an axial direction of an absorption axis of the light absorption anisotropic layer is different from an axial direction of a slow axis of the optically anisotropic layer, and the light absorption anisotropic layer and the optically anisotropic layer are directly laminated.
    Type: Application
    Filed: March 10, 2023
    Publication date: July 6, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Kunihiro ATSUMI, Naoya SHIBATA
  • Patent number: 11667842
    Abstract: Provided is a laminate, which has a polarizer and an optically anisotropic layer and is excellent in thermal durability, and an organic electroluminescent device and a liquid crystal display device, which include the laminate. The laminate has two substrates and a polarizing plate disposed between the two substrates, in which the polarizing plate has a polarizer and an optically anisotropic layer, the polarizer contains a polyvinyl alcohol-based resin, the optically anisotropic layer is formed of a composition containing a polymerizable liquid crystal compound represented by General Formula (I): L1-G1-D1-Ar-D2-G2-L2, a moisture permeability of the substrate is 10?3 g/m2·day or less, and a water content of the polarizing plate is 3.0 g/m2 or less.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: June 6, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Naoya Shibata, Nobuyuki Akutagawa, Keisuke Yoshimasa, Hiroaki Sata
  • Patent number: 11656393
    Abstract: The present invention provides a laminate used in an image display device the laminate including an optically anisotropic layer, a light-absorbing anisotropic layer, a refractive index-adjusting layer, and an oxygen shielding layer in this order, where the light-absorbing anisotropic layer is formed of a composition containing dichroic azo coloring agent and liquid crystalline compounds, where the dichroic azo coloring agent compound is 10% to 30% by mass with respect to a mass of a total solid content of the light-absorbing anisotropic layer, a degree of alignment of the light-absorbing anisotropic layer is 0.92 or higher, the refractive index-adjusting layer is formed of a composition containing a crosslinkable group compound, and has an in-plane average refractive index of 1.55 to 1.70 (550 nm ?), and an angle formed by an in-plane slow axis of the optically anisotropic layer and an absorption axis of the light-absorbing anisotropic layer is 45°±10°.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: May 23, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Naoya Shibata, Jun Takeda, Yuta Fukushima, Ayako Muramatsu
  • Publication number: 20230118336
    Abstract: Provided is a viewing angle control system and an image display device which are capable of controlling the viewing angle of a display screen in a longitudinal direction and improving the visibility in a specific lateral direction. The viewing angle control system includes a polarizer, and a light absorption anisotropic layer, in which the polarizer has an in-plane absorption axis in a film, an angle ? between a transmittance central axis of the light absorption anisotropic layer and a normal line of the film is in a range of 0.1° to 45°, and an angle ? between a direction in which the transmittance central axis of the light absorption anisotropic layer is orthographically projected onto the film surface and the absorption axis of the polarizer is 0° or greater and less than 85°, greater than 95° and less than 265°, or greater than 275° and 360° or less.
    Type: Application
    Filed: November 3, 2022
    Publication date: April 20, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi YOSHINARI, Eiichiro AMINAKA, Naoya NISHIMURA, Naoya SHIBATA, Shinya WATANABE
  • Patent number: 11630253
    Abstract: The present invention provides: a laminate which has a polarizer and an optically anisotropic layer and has excellent thermal durability; and an organic electroluminescent device and a liquid crystal display device, which include the laminate. The laminate according to the embodiment of the present invention is a laminate having two substrates, and a polarizing plate disposed between the two substrates, in which the polarizing plate has an optically anisotropic layer and a polarizer, the optically anisotropic layer is formed of a composition containing a polymerizable liquid crystal compound represented by Formula (I), the polarizer contains a polyvinyl alcohol-based resin, and a moisture permeability of the substrate is 10?3 g/m2·day or less.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: April 18, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Naoya Shibata, Mayumi Nojiri, Ayako Muramatsu
  • Publication number: 20230099442
    Abstract: Provided is an optical laminate, an image display device, and a glass composite which are capable of sufficiently shielding light emitted in a direction oblique to a normal direction of a film without occurrence of moire even in a case of being used in a combination with a high-definition image display device. The optical laminate includes, in order, at least a first light absorption anisotropic layer, a refractive index anisotropic layer formed of a one or more layers that contain a liquid crystal compound having a twisted structure, and a second light absorption anisotropic layer, in which the first light absorption anisotropic layer and the second light absorption anisotropic layer contain an anisotropic absorbing material and each have an absorption axis that is aligned at an angle of 60° to 90° with respect to a film surface.
    Type: Application
    Filed: October 12, 2022
    Publication date: March 30, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Katsufumi OHMURO, Naoyoshi YAMADA, Fumitake MITOBE, Naoya SHIBATA
  • 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
  • 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: 20230040811
    Abstract: Using a segmented detector having detection regions enables an observation of atoms in a specimen with a high contrast. A scanning transmission electron microscope system 100 scans an electron beam EB over a specimen S, uses a segmented detector 105 having detection regions disposed in a bright-field area to detect electrons transmitted through and scattered from the specimen S for each detection region, generates segmented images based on results of detecting the electrons in the detection regions, and applies filters determined based on a signal-to-noise ratio to the segmented images to generate a reconstructed image. The signal-to-noise ratio is proportional to an absolute value of a total phase contrast transfer function normalized by a noise level, the total phase contrast transfer function being defined by product-sum operation of complex phase contrast transfer functions and weight coefficients for the detection regions.
    Type: Application
    Filed: June 11, 2020
    Publication date: February 9, 2023
    Inventors: Naoya Shibata, Takehito Seki, Kousuke Ooe, Yuichi Ikuhara
  • Publication number: 20220413188
    Abstract: Provided is an optical laminate having excellent resistance to the pressure from the surface and a display device including the same. The optical laminate includes a surface protective layer, a first pressure sensitive adhesive layer, a light absorption anisotropic layer, and a second pressure sensitive adhesive layer in this order, in which an indentation elastic modulus of the first pressure sensitive adhesive layer is greater than an indentation elastic modulus of the light absorption anisotropic layer, the light absorption anisotropic layer is a layer formed of a composition for forming a light absorption anisotropic layer containing a liquid crystal compound and a dichroic substance, and a thickness of the light absorption anisotropic layer is less than 5 ?m.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 29, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Naoya SHIBATA, Naoya NISHIMURA, Shun INOUE
  • Publication number: 20220376606
    Abstract: A power conversion device includes a power conversion module, a phase change material, a heat dissipation member, a cooling mechanism, and a controller. A semiconductor switching element and a freewheeling diode configure a power conversion circuit. The phase change material is provided on a principal plane of a casing. The heat dissipation member includes a heat dissipation surface. The heat dissipation surface is overlapped with the principal plane to sandwich the phase change material. The cooling mechanism cools the heat dissipation member. The controller generates a driving signal for driving the power conversion circuit and controls the cooling mechanism. The controller includes a predetermined heating operation. The heating operation may drive the power conversion circuit, in a state that the cooling mechanism is stopped or intermittently operated, such that heat generation occurs in both the semiconductor switching element and the freewheeling diode.
    Type: Application
    Filed: December 19, 2019
    Publication date: November 24, 2022
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Naoya SHIBATA, Masahiro KINOSHITA, Issei FUKASAWA