Patents by Inventor Akio Tamura

Akio Tamura 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: 20180292589
    Abstract: According to the present invention, there are provided a film forming composition, which contains a polymer having a repeating unit represented by General Formula (I) and a curable compound, an optical film having a film formed of the composition, a hardcoat film, a polarizing plate, and a method for manufacturing a hydrophilized hardcoat film. In General Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, L represents an ester bond, an ether bond, a phenylene group, or an amide bond, R2 and R4 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, or a halogenated alkyl group having 1 to 20 carbon atoms, and R3 represents a hydrogen atom or a substituent.
    Type: Application
    Filed: June 12, 2018
    Publication date: October 11, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Akio TAMURA, Taketo OTANI, Reiko FUKAGAWA
  • Publication number: 20180282463
    Abstract: A composition for preparing an optical functional layer capable of forming an optical film having an excellent surface condition and excellent lamination properties with another layer, includes a liquid crystal compound and a copolymer, and the copolymer includes a constitutional unit corresponding to a fluoroaliphatic group-containing monomer represented by Formula I, and a constitutional unit corresponding to a monomer represented by Formula II. In Formulae I and II, R1, R10, and R3 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, R2 represents an alkyl group having 1 to 20 carbon atoms in which at least one carbon atom has a fluorine atom as a substituent, and L represents a divalent linking group constituted by at least one selected from the group consisting of —O—, —(C?O)O—, —O(C?O)—, a divalent chain group, and a divalent aliphatic cyclic group.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Akio TAMURA, Nobuyuki AKUTAGAWA
  • Patent number: 10007042
    Abstract: There is provided a composition containing a discotic liquid crystal compound, a chiral agent, and a surfactant which can form a light reflecting layer formed by fixing a cholesteric liquid crystalline phase, which exhibits excellent durability under a hot and humid environment and excellent heat resistance, and has few alignment defects; a light reflecting film; a luminance-improving film; a backlight unit; and a liquid crystal display device.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 26, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Ishikawa, Shinichi Morishima, Mitsuyoshi Ichihashi, Katsufumi Ohmuro, Akio Tamura, Wataru Hoshino
  • Patent number: 9977281
    Abstract: An object of the present invention is to provide a liquid crystal display device having excellent color reproducibility. A liquid crystal display device of the present invention is a liquid crystal display device including a non-white light source, a rear polarizer, a liquid crystal layer, and a front-side polarizer in this order, in which a light conversion layer that converts a wavelength of light transmitted through the front-side polarizer is provided on a viewer side of the front-side polarizer.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: May 22, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Shinichi Morishima, Koshin Matsuoka, Mitsuyoshi Ichihashi, Akio Tamura
  • Publication number: 20180117888
    Abstract: A fluorine-containing copolymer includes: a repeating unit represented by General Formula (I) and a repeating unit represented by General Formula (II), a composition containing the fluorine-containing copolymer, an optical film having a layer formed of the composition, a hardcoat film, a polarizing plate, and a touch panel display, and a method for producing a fluorine-containing copolymer. R1, R10, and R3 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, R2 represents an alkyl group having 1 to 20 carbon atoms in which at least one carbon atom has a fluorine atom as a substituent, and L represents a divalent linking group constituted of at least one group selected from the group consisting of —O—, —(C?O)O—, —O(C?O)—, divalent chain-like groups, and divalent aliphatic cyclic groups.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Reiko FUKAGAWA, Akio TAMURA, Taketo OTANI
  • Publication number: 20180044547
    Abstract: An aspect of the present invention relates to method of manufacturing a hard coat film, wherein the hard coat film comprises a plastic substrate and a hard coat layer, the method comprises forming the hard coat layer by subjecting a photopolymerizable hard coating composition to photopolymerization processing, and the photopolymerizable hard coating composition comprises a radical polymerizable compound having two or more radical polymerizable groups selected from the group consisting of acryloyloxy groups, acryloyl groups, methacryloyloxy groups, and methacryloyl groups per molecule, a cationic polymerizable compound, a radical photopolymerization initiator, and a cationic photopolymerization initiator.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 15, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Akio TAMURA, Katsuyuki TAKADA, Takayasu YAMAZAKI, Keisuke OKU, Keigo UEKI
  • Publication number: 20170351147
    Abstract: A laminate is capable of forming an orientation film formed by orienting a rod-like liquid crystal compound or a disk-like liquid crystal compound having a horizontal orientation ability or a vertical orientation ability with respect to a surface of the laminate, on the surface, by using an orientation restraining force of the surface, the laminate including: a cholesteric liquid crystal layer. An optical film sequentially includes: a support; a cholesteric liquid crystal layer; and an orientation film.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Nobuyuki AKUTAGAWA, Jun TAKEDA, Akio TAMURA
  • Publication number: 20170283701
    Abstract: A polymer is obtained by polymerizing a monomer having two or more radical polymerizable double bonds and one or more hydroxyl groups. A composition including the polymer, an optical film including a cholesteric liquid crystal layer containing the polymer on a support, and a liquid crystal display device including at least a backlight unit including the optical film and a liquid crystal cell are provided.
    Type: Application
    Filed: June 9, 2017
    Publication date: October 5, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Akio TAMURA, Koji IIJIMA
  • Publication number: 20170121441
    Abstract: A polymer having a partial structure formed by performing radical polymerization with respect to a compound having a mesogenic group derived from at least one type of liquid crystal compound selected from a rod-like liquid crystal compound and a disk-like liquid crystal compound, and two or more polymerizable groups, in which the polymer is a branched polymer, and a composition containing the polymer, an optical film, and a liquid crystal display device.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Akio TAMURA, Jun TAKEDA, Yuki MATSUDA, Nobuyuki AKUTAGAWA
  • Publication number: 20170010398
    Abstract: There is provided a composition containing a discotic liquid crystal compound, a chiral agent, and a surfactant which can form a light reflecting layer formed by fixing a cholesteric liquid crystalline phase, which exhibits excellent durability under a hot and humid environment and excellent heat resistance, and has few alignment defects; a light reflecting film; a luminance-improving film; a backlight unit; and a liquid crystal display device.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 12, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki ISHIKAWA, Shinichi MORISHIMA, Mitsuyoshi ICHIHASHI, Katsufumi OHMURO, Akio TAMURA, Wataru HOSHINO
  • Patent number: 9527986
    Abstract: Provide a cellulose acylate film with small photoelastic coefficient, low moisture content and low haze, and a polarizing plate and a liquid crystal display device using the same. Also provided is a cellulose acylate film including at least cellulose acylate and a resin produced by hydrogenating a polymer containing a repeating unit derived from a monomer represented by the formula (1) below and hydroxyl group: in the formula (1), R1 represents a hydrogen atom or C1-5 alkyl group; each R2 represents a hydrogen atom or substituent, at least one of (R2)s being a hydroxyl group-containing substituent; moiety (A) may form, or does not necessarily form, a five- or six-membered ring; n represents an integer of 1 to 5, and when n is 2 or larger, the plurality of (R2)s may be same with or different from each other.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: December 27, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Akio Tamura, Kengo Asai
  • Patent number: 9447261
    Abstract: To provide a cellulose acylate film having low moisture permeability and low haze, a polarizing plate, and a liquid crystal display device using the same. A cellulose acylate film comprising at least a cellulose acylate, and a compound represented by the formula (1) below: in the formula (1), R1 represents a hydrogen atom or substituent, R2 represents a substituent represented by the formula (2) below; n1 represents an integer of 0 to 4, when n1 is 2 or larger, the plurality of (R1)s may be same with or different from each other; n2 represents an integer of 1 to 5, when n2 is 2 or larger, the plurality of (R2)s may be same with or different from each other.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: September 20, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Akio Tamura, Yu Naito, Yutaka Nozoe
  • Publication number: 20160161799
    Abstract: An object of the present invention is to provide a liquid crystal display device having excellent color reproducibility. A liquid crystal display device of the present invention is a liquid crystal display device including a non-white light source, a rear polarizer, a liquid crystal layer, and a front-side polarizer in this order, in which a light conversion layer that converts a wavelength of light transmitted through the front-side polarizer is provided on a viewer side of the front-side polarizer.
    Type: Application
    Filed: February 10, 2016
    Publication date: June 9, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Shinichi MORISHIMA, Koshin MATSUOKA, Mitsuyoshi ICHIHASHI, Akio TAMURA
  • Patent number: 9255058
    Abstract: Disclosed is a complex alcohol ester composition comprising a polyester in which at least two molecules of a polyol represented by a formula I: R(OH)n (wherein R represents an n-valent aliphatic, alicyclic or aromatic group, one or more carbon atoms not adjacent to each other in R may be individually substituted with an oxygen atom, and n indicates an integer of 2 or more) are linked through at least two ester bonds via at least one molecule of a polybasic acid, and at least a part of the non-linked side chain ends of the polyol have a group represented by a formula II: (AO)kR2 (wherein R2 represents a hydrocarbon group, A represents a divalent linking group, and k indicates an integer) via a polybasic acid. The complex alcohol ester composition can be used a lubricant agent.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: February 9, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Ken Kawata, Akio Tamura, Saisuke Watanabe
  • Publication number: 20160033686
    Abstract: There is provided a polarizing plate protective film including a transparent support having a thickness of 40 ?m or less, and a hard coat layer having a film thickness of from 3 ?m to 15 ?m, wherein the hard coat layer is a layer formed by curing a hard coat layer forming composition containing at least the specific compounds, and a polarizing plate comprising: a polarizer, and at least one polarizing plate protective film, as a protective film for the polarizer.
    Type: Application
    Filed: July 30, 2015
    Publication date: February 4, 2016
    Applicant: FUJIFILM CORPORATION
    Inventors: Katsuyuki TAKADA, Masaaki SUZUKI, Akio TAMURA
  • Publication number: 20150275028
    Abstract: An aspect of the present invention relates to method of manufacturing a hard coat film, wherein the hard coat film comprises a plastic substrate and a hard coat layer, the method comprises forming the hard coat layer by subjecting a photopolymerizable hard coating composition to photopolymerization processing, and the photopolymerizable hard coating composition comprises a radical polymerizable compound having two or more radical polymerizable groups selected from the group consisting of acryloyloxy groups, acryloyl groups, methacryloyloxy groups, and methacryloyl groups per molecule, a cationic polymerizable compound, a radical photopolymerization initiator, and a cationic photopolymerization initiator.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 1, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Akio TAMURA, Katsuyuki TAKADA, Takayasu YAMAZAKI, Keisuke OKU, Keigo UEKI
  • Patent number: 9090824
    Abstract: A polarizing plate includes two protective films and a polarizer provided between the two protective films, and the polarizer has a thickness of 3 ?m to 18 ?m, at least one of the protective films has a thickness of 3 ?m to 40 ?m and contains at least one resin and a compound in an amount of 1 part by mass to 20 parts by mass based on 100 parts by mass of the resin, the compound having at least one hydrogen-donating group capable of forming a hydrogen bond and a ratio of molecular weight to number of aromatic rings of 300 or less, and the polarizing plate has a thickness of 15 ?m to 70 ?m.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: July 28, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Nobutaka Fukagawa, Yu Naito, Akio Tamura, Yutaka Nozoe, Hiroshi Inada
  • Patent number: 8974875
    Abstract: A cellulose acylate film containing a cellulose acylate and a specific polymer, the specific polymer containing a repeating unit derived from a monomer represented by formula (1): wherein R1 represents a hydrogen atom or an aliphatic group having 1 to 4 carbon atoms; R2 represents a substituent; (A) represents an atomic group necessary to form a 5- or 6-membered ring; and n represents an integer of 0 to 4.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 10, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yutaka Nozoe, Akio Tamura, Yu Naito
  • Patent number: 8927629
    Abstract: A cellulose acetate resin composition having a cellulose acetate ether compound and a stabilizer; the cellulose acetate ether compound comprising a specific atomic group, the specific atomic group being introduced into a cellulose acetate through an ether group derived from a hydroxyl group, the specific atomic group being introduced with a substitution degree of 0.01 or more; the cellulose acetate comprising residual hydroxyl group in a substitution degree of 0.3 to 1.0, the stabilizer being at least one selected from the group consisting of a phosphite compound, a hindered phenol compound, a hindered amine compound, and a sulfur compound.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: January 6, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Sawai, Takayasu Nagai, Hiroshi Inada, Akio Tamura
  • Publication number: 20140205770
    Abstract: Provide a cellulose acylate film with small photoelastic coefficient, low moisture content and low haze, and a polarizing plate and a liquid crystal display device using the same. Also provided is a cellulose acylate film including at least cellulose acylate and a resin produced by hydrogenating a polymer containing a repeating unit derived from a monomer represented by the formula (1) below and hydroxyl group: in the formula (1), R1 represents a hydrogen atom or C1-5 alkyl group; each R2 represents a hydrogen atom or substituent, at least one of (R2)s being a hydroxyl group-containing substituent; moiety (A) may form, or does not necessarily form, a five- or six-membered ring; n represents an integer of 1 to 5, and when n is 2 or larger, the plurality of (R2)s may be same with or different from each other.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 24, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Akio TAMURA, Kengo ASAI