Patents by Inventor Takao Taguchi

Takao Taguchi 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: 20190359139
    Abstract: A vehicle mirror with an image display function includes a half mirror which includes a high-Re retardation film and a reflection layer and an image display device on the half mirror, in which the high-Re retardation film, the reflection layer, and the image display device are disposed in this order, the high-Re retardation film has a front phase difference of 5000 nm or greater, and the reflection layer is a linear polarization reflection layer.
    Type: Application
    Filed: August 9, 2019
    Publication date: November 28, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Takao TAGUCHI, Kazuhiro OKI, Mitsuyoshi CHIHASHI, Akihiro ANZAI
  • Patent number: 10442358
    Abstract: A vehicle mirror with an image display function includes a half mirror which includes a high-Re retardation film and a reflection layer and an image display device on the half mirror, in which the high-Re retardation film, the reflection layer, and the image display device are disposed in this order, the high-Re retardation film has a front phase difference of 5000 nm or greater, and the reflection layer is a linear polarization reflection layer or a circular polarization reflection layer.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 15, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takao Taguchi, Kazuhiro Oki, Mitsuyoshi Ichihashi, Akihiro Anzai
  • Publication number: 20190310407
    Abstract: A laminated body sequentially includes a substrate, an adhesive layer, and a multilayer film. The laminated body has characteristics of transmitting first polarized light and reflecting second polarized light having a polarization axis x that intersects a polarization axis y of the first polarized light. The multilayer film includes a plurality of first layers formed of a crystalline naphthalenedicarboxylic acid polyester and a plurality of second layers formed of a polymer other than the crystalline naphthalenedicarboxylic acid polyester, the first layers and the second layers being alternately stacked on top of each other. The first layers have a higher refractive index than the second layers on the polarization axis of the second polarized light, and the multilayer film has a thermal expansion coefficient of ?80 [10?6/K] or more at a temperature 3° C. higher than a glass transition point of the multilayer film in the polarization axis direction of the first polarized light.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yuki SAIKI, Takao TAGUCHI, Katsuyuki TAKADA, Mikio TOMARU
  • Publication number: 20190310488
    Abstract: A half mirror includes, in sequence, a glass plate, an adhesive layer, and a polarized light reflecting layer having a thickness of 5.0 ?m or more and 80 ?m or less. The adhesive layer has a thickness of 3 ?m to 15 ?m and is a layer formed by UV-curing of a composition containing an acrylic polymer having a weight-average molecular weight of 800,000 to 2,000,000, a crosslinker, and a silane coupling agent. The total amount of the crosslinker is 1.0 mass % to 8.0 mass % of the amount of the acrylic polymer, and 80 mass % or more of the crosslinker is accounted for by a photo-crosslinker.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: FUJIFILM Corporation
    Inventor: Takao TAGUCHI
  • Patent number: 10308185
    Abstract: A vehicle mirror with an image display function including, in this order: an image display device; a circular polarization reflection layer; and a front surface plate made of glass or plastic, in which the circular polarization reflection layer includes a linear polarization reflection plate and a ¼ wavelength plate from the image display device side. The vehicle mirror with an image display function of the invention is capable of displaying a bright image.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 4, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Anzai, Kazuhiro Oki, Mitsuyoshi Ichihashi, Takao Taguchi
  • Patent number: 10286582
    Abstract: The present invention provides a film for thermal compression bonding, which contains a cholesteric liquid crystal layer that is formed by curing a liquid crystal composition including a polymerizable rod-like liquid crystal compound, a chiral agent, and a polymerizable monomer, in which the polymerizable rod-like liquid crystal includes a monofunctional rod-like liquid crystal compound having one polymerizable group and a bifunctional rod-like liquid crystal compound having two polymerizable groups, or two or more bifunctional rod-like liquid crystal compounds having two polymerizable groups, the polymerizable monomer has three or more polymerizable groups, and the polymerizable monomer is contained in an amount of 0.3% by mass to 6.0% by mass with respect to the total mass of the polymerizable rod-like liquid crystal compounds; a method for producing a molded article using the film for thermal compression bonding; and a molded article produced by the production method.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 14, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takao Taguchi, Kazuhiro Oki
  • Publication number: 20190079304
    Abstract: A half mirror includes an observation surface, a molded resin layer, and a polarization reflection plate in this order, at least one high-Re retardation film is included between the observation surface and the polarization reflection plate, a total front phase difference of the high-Re retardation film is 3,000 nm or greater, and a first high-Re retardation film is included as the high-Re retardation film between the observation surface and the molded resin layer.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 14, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Hirotoshi ANDO, Takao TAGUCHI, Mikio TOMARU
  • Publication number: 20190072819
    Abstract: A half mirror includes a circularly polarized light reflecting layer including a cholesteric liquid crystal layer, a barrier layer, a bonding layer, and a front panel. The barrier layer, which is, for example, a layer formed by curing a composition containing a urethane (meth)acrylate monomer, is disposed between the bonding layer and the circularly polarized light reflecting layer.
    Type: Application
    Filed: October 26, 2018
    Publication date: March 7, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Akihiro ANZAI, Hiroshi INADA, Wataru MAJIMA, Takao TAGUCHI
  • Publication number: 20190056540
    Abstract: A mirror with an image display function includes in order: an image display device; a ¼ wavelength plate; a circular polarization reflection layer; and a front surface plate, the front surface plate includes a substrate and an inorganic reflection layer, the inorganic reflection layer is a semi-transmissive semi-reflective layer, the circular polarization reflection layer includes a cholesteric liquid crystal layer, and the cholesteric liquid crystal layer has a central wavelength of selective reflection in a visible light region. The half mirror includes in order: the ¼ wavelength plate, the circular polarization reflection layer, and the front surface plate.
    Type: Application
    Filed: October 19, 2018
    Publication date: February 21, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Takao TAGUCHI, Katsuyuki TAKADA, Mikio TOMARU
  • Patent number: 10175399
    Abstract: According to the invention, there is provided a mirror with an image display function including, in this order: an image display device; a ¼ wavelength plate; a circular polarization reflection layer; and a front surface plate made of glass or plastic, in which the circular polarization reflection layer includes a cholesteric liquid crystal layer, and the cholesteric liquid crystal layer has a central wavelength of selective reflection in a visible light region. The mirror with an image display function of the invention is capable of displaying a bright image.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 8, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Anzai, Kazuhiro Oki, Mitsuyoshi Ichihashi, Takao Taguchi
  • Publication number: 20180335551
    Abstract: The half mirror includes a retardation layer, a circularly polarized light reflecting layer, and a front panel that are disposed in this order. The retardation layer has a front phase difference as measured at a wavelength of 500 nm of 107 to 127 nm and a front phase difference as measured at a wavelength of 475 nm of 110 to 130 nm. The circularly polarized light reflecting layer includes three cholesteric liquid crystal layers. The three cholesteric liquid crystal layers have different selective reflection center wavelengths ?1, ?2, and X,3. The center wavelengths ?1, ?2, and ?3 satisfy 380 nm<?1<500 nm and 520 nm<?2<?3<780 nm. The cholesteric liquid crystal layer having the center wavelength ?1 is disposed nearest to the front panel side.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 22, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takao TAGUCHI, Kazuhiro OKI, Mitsuyoshi ICHIHASHI
  • Patent number: 10126474
    Abstract: According to the invention, there is provided a mirror with an image display function including, in this order: an image display device; a circular polarization reflection layer; and a front surface plate made of glass or plastic, in which the circular polarization reflection layer includes a cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a central wavelength of selective reflection in a visible light region, and the central wavelength is different from an emission peak wavelength of the image display device by 5 nm or greater. The mirror with an image display function of the invention is capable of displaying a bright image.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 13, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Anzai, Kazuhiro Oki, Mitsuyoshi Ichihashi, Takao Taguchi
  • Publication number: 20180272950
    Abstract: A vehicle mirror having an image display function includes an image display device, a circularly polarized light reflection layer, and a front plate formed of glass or plastic in this order. The circularly polarized light reflection layer includes a linearly polarized light reflection plate and a 1/4 wavelength plate from a side of the image display device. The linearly polarized light reflection plate and the 1/4 wavelength plate are directly in contact with each other, or only an alignment layer is included between the linearly polarized light reflection plate and the 1/4 wavelength plate. A method for producing the vehicle mirror includes forming the 1/4 wavelength plate from a composition that is directly applied to the surface of the linearly polarized light reflection plate or that is directly applied to the surface of the alignment layer directly in contact with the linearly polarized light reflection plate.
    Type: Application
    Filed: May 23, 2018
    Publication date: September 27, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Akihiro ANZAI, Kazuhiro OKI, Mitsuyoshi ICHIHASHI, Takao TAGUCHI
  • Patent number: 10061187
    Abstract: The present invention provides a reflection member including a selective reflection layer; and two ¼ wavelength phase difference plates, in which the selective reflection layer is disposed between the two ¼ wavelength phase difference plates, the selective reflection layer includes a layer of a fixed cholesteric liquid crystal phase having a central wavelength of selective reflection at a visible light range wavelength ?i, and the selective reflection layer includes a layer in which a twisted direction of a helix of a cholesteric liquid crystal is only one of right or left as the layer of a fixed cholesteric liquid crystal phase having selective reflection at the wavelength ?i. The reflection member of the present invention can be used particularly as a heat shielding member, which can reduce damage to the optical systems due to external light including visible light while efficiently extracting projected light.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: August 28, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Mitsuyoshi Ichihashi, Yuki Saiki, Kazuhiro Oki, Takao Taguchi
  • Publication number: 20180215316
    Abstract: A vehicle mirror with an image display function includes a half mirror and an image display device, the half mirror includes an n?/4 retardation film and a reflection layer, n is 1, 3, 5, or 7, the n?/4 retardation film, the reflection layer, and the image display device are disposed in this order in the mirror with an image display function, and the reflection layer is a linear polarization reflection layer or a circular polarization reflection layer.
    Type: Application
    Filed: March 26, 2018
    Publication date: August 2, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takao TAGUCHI, Kazuhiro OKI, Mitsuyoshi ICHIHASHI
  • Publication number: 20180210124
    Abstract: The vehicle mirror includes a high-Re retardation film and a reflective layer. The high-Re retardation film has a front retardation of 5,000 nm or more, and the reflective layer is a reflective layer that is reflective in an unpolarized manner, such as a reflective metal layer. The vehicle mirror may be a vehicle mirror further including an image display device, wherein the high-Re retardation film, the reflective layer, and the image display device are disposed in this order, and the reflective layer is transflective.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takao TAGUCHI, Kazuhiro OKI, Mitsuyoshi ICHIHASHI
  • Publication number: 20180105110
    Abstract: According to the invention, there are provided a vehicle minor with an image display function including: an image display device; and a half mirror, in which the half minor includes a reflection layer, and the reflection layer is inclined with respect to a surface of an image display portion of the image display device, and a method of manufacturing a vehicle mirror with an image display function including: positioning a half minor including a reflection layer on a surface of an image display portion of an image display device such that the half mirror is inclined with respect to the surface of the image display portion. In a vehicle minor with an image display function according to the invention, image visibility is hardly reduced by outside light.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 19, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Akihiro ANZAI, Kazuhiro OKI, Mitsuyoshi ICHIHASHI, Takao TAGUCHI
  • Publication number: 20180099614
    Abstract: A vehicle mirror with an image display function includes a half mirror which includes a high-Re retardation film and a reflection layer and an image display device on the half mirror, in which the high-Re retardation film, the reflection layer, and the image display device are disposed in this order, the high-Re retardation film has a front phase difference of 5000 nm or greater, and the reflection layer is a linear polarization reflection layer or a circular polarization reflection layer.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takao TAGUCHI, Kazuhiro OKI, Mitsuyoshi ICHIHASHI, Akihiro ANZAI
  • Patent number: 9897731
    Abstract: An infrared ray cutting film having a transparent base, a near infrared ray absorbing layer containing a compound of Formula (1) with a maximum absorption wavelength of from 750 nm to 920 nm, and a near infrared ray reflection layer obtained by fixing a cholesteric liquid crystal phase is excellent in invisibility, robustness and high heat shielding performance. R1a and R1b represent alkyl, aryl or heteroaryl; at least one of R2 and R3 is an electron-withdrawing group, and R4 represents H, alkyl, aryl, heteroaryl, substituted boron, or a metal.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 20, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Shunya Katoh, Takao Taguchi, Kazuhiro Oki, Masaru Yoshikawa
  • Patent number: 9829613
    Abstract: The present invention provides a heat ray cutting film comprising, on a substrate, at least two layers of a light reflecting layer X1 and a light reflecting layer X2 obtained by fixing cholesteric liquid crystalline phases, and an infrared ray absorbing layer comprising composite tungsten oxide microparticles, wherein the light reflecting layer X1 and the light reflecting layer X2 reflect lights circularly polarized in directions opposite to each other, reflection center wavelengths of the light reflecting layer X1 and the light reflecting layer X2 are within a range of 800 to 1100 nm and are substantially equal to each other, and total reflectivity of all light reflecting layers obtained by fixing cholesteric liquid crystalline phases is 80% or more. The heat ray cutting film of the present invention has high transparency and high heat shielding performance.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: November 28, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Takao Taguchi, Shunya Katoh, Kazuhiro Oki, Masaru Yoshikawa