Patents by Inventor Taketo Otani

Taketo Otani 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: 9977165
    Abstract: The present invention provides an optical laminate which is suppressed in film thickness unevenness of an optically anisotropic layer and is free from point defects, a method of producing the same, and a polarizing plate and an organic EL display device using the optical laminate. The method of producing an optical laminate having an optically anisotropic layer A and an optically anisotropic layer B, includes where the layer A and the layer B are provided in direct contact with each other. The method further includes where both a composition a for forming the layer A and a composition b for forming the layer B contain a fluorine compound, and when the layer A is formed using composition a and layer B is formed using composition b, layer A and layer B are formed in this order under the condition that composition a and composition b satisfy predetermined surface tension relationships.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: May 22, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Shinpei Yoshida, Masaaki Suzuki, Kazuhiro Amemiya, Taketo Otani
  • 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: 20180051149
    Abstract: Provided is a hardcoat film including a support and a hardcoat layer on at least one surface of the support. The hardcoat layer is formed of a composition for forming a hardcoat layer. The composition contains: (a) resin having a group which increases hydrophilicity when decomposed by an acid and a group which contains at least one kind of atom selected from a fluorine atom and a silicon atom; and (b) acid generator.
    Type: Application
    Filed: October 23, 2017
    Publication date: February 22, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Tatsuya IWASAKI, Taketo OTANI
  • Patent number: 9829606
    Abstract: There is provided a method of manufacturing a hard coat film having a hard coat layer on at least one side of a transparent support, the method includes curing a hard coat layer forming composition containing (a) a compound having one alicyclic epoxy group and one ethylenically unsaturated double bond group in a molecule and having a molecular weight of 300 or less, (b) a compound having three or more ethylenically unsaturated double bond groups in a molecule, (c) a radical polymerization initiator, and (d) a cationic polymerization initiator in a specific amount.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 28, 2017
    Assignee: FUJIFILM CORPORATION
    Inventors: Masaaki Suzuki, Keigo Ueki, Taketo Otani, Katsuyuki Takada, Ryo Nakamura
  • Publication number: 20170183503
    Abstract: The invention is directed to a method for manufacturing a hardcoat film including a hardcoat layer having a surface of which a water contact angle is 65° or less by applying, drying, and curing a composition for forming the hardcoat layer on a base material film, in which the composition for forming the hardcoat layer contains the components (a) to (d) as defined herein, and, in a case in which a total solid content of the composition for forming the hardcoat layer is set to 100% by mass, a content of the component (b) is 40% to 80% by mass, a content of the component (c) is 10% to 40% by mass, and a content of the component (d) is 10% to 40% by mass.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Taketo OTANI, Katsuyuki TAKADA, Masaaki SUZUKI
  • Publication number: 20170153369
    Abstract: The present invention provides an optical laminate which is suppressed in film thickness unevenness of an optically anisotropic layer and is free from point defects, a method of producing the same, and a polarizing plate and an organic EL display device using the optical laminate. The method of producing an optical laminate having an optically anisotropic layer A and an optically anisotropic layer B, includes where the layer A and the layer B are provided in direct contact with each other. The method further includes where both a composition a for forming the layer A and a composition b for forming the layer B contain a fluorine compound, and when the layer A is formed using composition a and layer B is formed using composition b, layer A and layer B are formed in this order under the condition that composition a and composition b satisfy predetermined surface tension relationships.
    Type: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Shinpei YOSHIDA, Masaaki SUZUKI, Kazuhiro AMEMIYA, Taketo OTANI
  • Publication number: 20160122577
    Abstract: There is provided a hard coat film having a hard coat layer made from a hard coat layer forming composition on at least one side of a transparent support. The hard coat layer forming composition includes a resin which has a repeating unit including, in a same side chain thereof, at least one selected from a fluorine atom and a silicon atom, and a polarity conversion group capable of being hydrolyzed by the action of an alkali solution to increase the hydrophilicity.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 5, 2016
    Applicant: FUJIFILM CORPORATION
    Inventors: Taketo OTANI, Masaaki SUZUKI, Katsuyuki TAKADA
  • Patent number: 9229263
    Abstract: A liquid crystal display device includes first and second polarizers with absorption axes orthogonal to each other; first and second substrates between the first and second polarizers and at least one of which has a transparent electrode; and a twisted-nematic liquid crystal cell disposed between the first and second substrates, wherein a light scattering film is provided at a viewing side of the first and second polarizers and includes a support member and a liquid crystal layer composed of a liquid crystal compound, wherein the pitch of the liquid crystal compound ranges between 0.35 ?m and 3 ?m and is oriented at 45° relative to a liquid-crystal direction of the liquid crystal display device, wherein the liquid crystal layer has a thickness between 0.17 ?m and 10 ?m, and wherein a weighted scattering area ratio of a goniophotometer scattering profile of the light scattering film satisfies the following expression.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 5, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Megumi Sekiguchi, Shinichi Morishima, Takashi Yonemoto, Hiroshi Sato, Taketo Otani
  • Publication number: 20150378062
    Abstract: There is provided a method of manufacturing a hard coat film having a hard coat layer on at least one side of a transparent support, the method comprising curing a hard coat layer forming composition containing (a) a compound having one alicyclic epoxy group and one ethylenically unsaturated double bond group in a molecule and having a molecular weight of 300 or less, (b) a compound having three or more ethylenically unsaturated double bond groups in a molecule, (c) a radical polymerization initiator, and (d) a cationic polymerization initiator in a specific amount.
    Type: Application
    Filed: June 23, 2015
    Publication date: December 31, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Masaaki SUZUKI, Keigo UEKI, Taketo OTANI, Katsuyuki TAKADA, Ryo NAKAMURA
  • Publication number: 20140184992
    Abstract: A liquid crystal display device includes first and second polarizers with absorption axes orthogonal to each other; first and second substrates between the first and second polarizers and at least one of which has a transparent electrode; and a twisted-nematic liquid crystal cell disposed between the first and second substrates, wherein a light scattering film is provided at a viewing side of the first and second polarizers and includes a support member and a liquid crystal layer composed of a liquid crystal compound, wherein the pitch of the liquid crystal compound ranges between 0.35 ?m and 3 ?m and is oriented at 45° relative to a liquid-crystal direction of the liquid crystal display device, wherein the liquid crystal layer has a thickness between 0.
    Type: Application
    Filed: December 18, 2013
    Publication date: July 3, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Megumi SEKIGUCHI, Shinichi MORISHIMA, Takashi YONEMOTO, Hiroshi SATO, Taketo OTANI
  • Publication number: 20130057809
    Abstract: There is provided an optically-compensatory sheet including, at least one optically anisotropic layer containing a discotic liquid crystalline compound on a transparent support, wherein the optically anisotropic layer contains a boronic acid compound represented by the following Formula (I): wherein, each of R1 and R2 independently represents a hydrogen atom, a substituted or unsubstituted aliphatic hydrocarbon group, an aryl group or a hetero cyclic group, and R1 and R2 may be linked to each other to form a ring, and R3 represents a substituted or unsubstituted, a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 7, 2013
    Inventors: Shun Nakamura, Hideyuki Nishikawa, Hisato Nagase, Ayako Muramatsu, Taketo Otani