Patents by Inventor Taiji Katsumata

Taiji Katsumata 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: 11208596
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: December 28, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Takahiro Ohno, Makoto Ishiguro, Yoshiaki Hisakado, Hiroshi Sato, Keita Takahashi, Naozumi Shiraiwa, Taiji Katsumata, Hiroshi Matsuyama
  • Patent number: 11072741
    Abstract: An optically anisotropic layer is formed by a liquid crystal compound represented by General Formula 1, in which the long axes of the molecules are oriented. wherein L1 and L2 independently represent a linking group having a carbonyl group; F1 and F2 independently represent an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a halogen atom; n and m independently represent an integer from 0 to 4; a and b independently represent an integer from 1 to 4; T1 and T2 independently represent a spacer portion including a straight chain or branched alkylene or alkylene oxide group having 2 to 20 carbon atoms; and Ar represents a divalent group having at least one aromatic ring selected from a group consisting of aromatic hydrocarbon rings and aromatic heterocycles, the number of ? electrons in the Ar group being 8 or greater.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 27, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Ryoji Goto, Hiroyuki Ishikawa, Keita Takahashi, Taiji Katsumata
  • Patent number: 10782567
    Abstract: An object of the present invention is to provide an optical film having an optically-anisotropic layer having excellent durability, a polarizing plate and an image display device in which the optical film is used, a polymerizable compound used in the optical film, and a method for manufacturing a 1,4-cyclohexanedicarboxylic acid monoaryl ester. The optical film of the present invention is an optical film having at least an optically-anisotropic layer, in which the optically-anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable compound which has a specific structure, a liquid crystal compound which has a specific structure, and a polymerization initiator.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: September 22, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Keita Takahashi, Hiroshi Matsuyama, Naozumi Shiraiwa, Taiji Katsumata, Yuuta Fujino, Hiroshi Sato, Kiyoshi Takeuchi, Hiroyuki Hagio, Aiko Yoshida, Hiroaki Nakatsugawa
  • Publication number: 20200270524
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OHNO, Makoto ISHIGURO, Yoshiaki HISAKADO, Hiroshi SATO, Keita TAKAHASHI, Naozumi SHIRAIWA, Taiji KATSUMATA, Hiroshi MATSUYAMA
  • Patent number: 10689575
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 23, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Takahiro Ohno, Makoto Ishiguro, Yoshiaki Hisakado, Hiroshi Sato, Keita Takahashi, Naozumi Shiraiwa, Taiji Katsumata, Hiroshi Matsuyama
  • Patent number: 10428042
    Abstract: An object of the present invention is to provide a novel compound useful for manufacturing salacinol, a method for manufacturing the compound, a method for manufacturing salacinol, methods for protecting and deprotecting a diol group, and a protective agent for a diol group. A compound represented by Formula (1) is a compound useful for manufacturing salacinol. (In the formula, each of R1a and R1b is a hydrogen atom or a hydroxy protective group; R2 is a hydroxy group or the like; and R3 is a hydroxy group or the like.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: October 1, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Koki Nakamura, Hisato Nagase, Yuuta Fujino, Katsuyuki Watanabe, Taiji Katsumata
  • Publication number: 20180346814
    Abstract: An optically anisotropic layer is formed by a liquid crystal compound represented by General Formula 1, in which the long axes of the molecules are oriented. wherein L1 and L2 independently represent a linking group having a carbonyl group; F1 and F2 independently represent an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a halogen atom; n and m independently represent an integer from 0 to 4; a and b independently represent an integer from 1 to 4; T1 and T2 independently represent a spacer portion including a straight chain or branched alkylene or alkylene oxide group having 2 to 20 carbon atoms; and Ar represents a divalent group having at least one aromatic ring selected from a group consisting of aromatic hydrocarbon rings and aromatic heterocycles, the number of ? electrons in the Ar group being 8 or greater.
    Type: Application
    Filed: July 23, 2018
    Publication date: December 6, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Ryoji GOTO, Hiroyuki ISHIKAWA, Keita TAKAHASHI, Taiji KATSUMATA
  • Publication number: 20180327378
    Abstract: An object of the present invention is to provide a novel compound useful for manufacturing salacinol, a method for manufacturing the compound, a method for manufacturing salacinol, methods for protecting and deprotecting a diol group, and a protective agent for a diol group. A compound represented by Formula (1) is a compound useful for manufacturing salacinol. (In the formula, each of R1a and R1b is a hydrogen atom or a hydroxy protective group; R2 is a hydroxy group or the like; and R3 is a hydroxy group or the like.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Koki NAKAMURA, Hisato NAGASE, Yuuta FUJINO, Katsuyuki WATANABE, Taiji KATSUMATA
  • Publication number: 20180267368
    Abstract: An object of the present invention is to provide an optical film having an optically-anisotropic layer having excellent durability, a polarizing plate and an image display device in which the optical film is used, a polymerizable compound used in the optical film, and a method for manufacturing a 1,4-cyclohexanedicarboxylic acid monoaryl ester. The optical film of the present invention is an optical film having at least an optically-anisotropic layer, in which the optically-anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable compound which has a specific structure, a liquid crystal compound which has a specific structure, and a polymerization initiator.
    Type: Application
    Filed: May 21, 2018
    Publication date: September 20, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Keita TAKAHASHI, Hiroshi MATSUYAMA, Naozumi SHIRAIWA, Taiji KATSUMATA, Yuuta FUJINO, Hiroshi SATO, Kiyoshi TAKEUCHI, Hiroyuki HAGIO, Aiko YOSHIDA, Hiroaki NAKATSUGAWA
  • Patent number: 10059877
    Abstract: An optically anisotropic layer is formed by a liquid crystal compound represented by General Formula 1, in which the long axes of the molecules are oriented. wherein L1 and L2 independently represent a linking group having a carbonyl group; F1 and F2 independently represent an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a halogen atom; n and m independently represent an integer from 0 to 4; a and b independently represent an integer from 1 to 4; T1 and T2 independently represent a spacer portion including a straight chain or branched alkylene or alkylene oxide group having 2 to 20 carbon atoms; and Ar represents a divalent group having at least one aromatic ring selected from a group consisting of aromatic hydrocarbon rings and aromatic heterocycles, the number of ? electrons in the Ar group being 8 or greater.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: August 28, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Ryoji Goto, Hiroyuki Ishikawa, Keita Takahashi, Taiji Katsumata
  • Patent number: 10059686
    Abstract: An object of the present invention is to provide a novel compound useful for manufacturing salacinol, a method for manufacturing the compound, a method for manufacturing salacinol, methods for protecting and deprotecting a diol group, and a protective agent for a diol group. A compound represented by Formula (1) is a compound useful for manufacturing salacinol. (In the formula, each of R1a and R1b is a hydrogen atom or a hydroxy protective group; R2 is a hydroxy group or the like; and R3 is a hydroxy group or the like.).
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 28, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Koki Nakamura, Hisato Nagase, Yuuta Fujino, Katsuyuki Watanabe, Taiji Katsumata
  • Publication number: 20180079958
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OHNO, Makoto ISHIGURO, Yoshiaki HISAKADO, Hiroshi SATO, Keita TAKAHASHI, Naozumi SHIRAIWA, Taiji KATSUMATA, Hiroshi MATSUYAMA
  • Publication number: 20180009777
    Abstract: An object of the present invention is to provide a novel compound useful for manufacturing salacinol, a method for manufacturing the compound, a method for manufacturing salacinol, methods for protecting and deprotecting a diol group, and a protective agent for a diol group. A compound represented by Formula (1) is a compound useful for manufacturing salacinol. (In the formula, each of R1a and R1b is a hydrogen atom or a hydroxy protective group; R2 is a hydroxy group or the like; and R3 is a hydroxy group or the like.
    Type: Application
    Filed: September 20, 2017
    Publication date: January 11, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Koki NAKAMURA, Hisato NAGASE, Yuuta FUJINO, Katsuyuki WATANABE, Taiji KATSUMATA
  • Patent number: 9815812
    Abstract: There is provided a production method of a thiopyranose compound represented by the following Formula (2) by reacting a compound represented by the following Formula (1) with a sulfur compound. X represents a leaving group. A represents an oxygen atom or a sulfur atom. Further, each of R1A to R4B, R1B to R4B, and R5 represents a hydrogen atom or a specific substituent.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: November 14, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Akira Takeda, Toru Watanabe, Taiji Katsumata, Takayuki Ito, Toshihiko Sawada
  • Patent number: 9802913
    Abstract: An object of the present invention is to provide a novel compound useful for manufacturing salacinol, a method for manufacturing the compound, a method for manufacturing salacinol, methods for protecting and deprotecting a diol group, and a protective agent for a diol group. A compound represented by Formula (1) is a compound useful for manufacturing salacinol. (In the formula, each of R1a and R1b is a hydrogen atom or a hydroxy protective group; R2 is a hydroxy group or the like; and R3 is a hydroxy group or the like.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: October 31, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Koki Nakamura, Hisato Nagase, Yuuta Fujino, Katsuyuki Watanabe, Taiji Katsumata
  • Publication number: 20170001974
    Abstract: An object of the present invention is to provide a novel compound useful for manufacturing salacinol, a method for manufacturing the compound, a method for manufacturing salacinol, methods for protecting and deprotecting a diol group, and a protective agent for a diol group. A compound represented by Formula (1) is a compound useful for manufacturing salacinol. (In the formula, each of R1a and R1b is a hydrogen atom or a hydroxy protective group; R2 is a hydroxy group or the like; and R3 is a hydroxy group or the like.
    Type: Application
    Filed: September 19, 2016
    Publication date: January 5, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Koki NAKAMURA, Hisato NAGASE, Yuuta FUJINO, Katsuyuki WATANABE, Taiji KATSUMATA
  • Publication number: 20160355497
    Abstract: There is provided a production method of a thiopyranose compound represented by the following Formula (2) by reacting a compound represented by the following Formula (1) with a sulfur compound. X represents a leaving group. A represents an oxygen atom or a sulfur atom. Further, each of R1A to R4B, R1B to R4B, and R5 represents a hydrogen atom or a specific substituent.
    Type: Application
    Filed: August 17, 2016
    Publication date: December 8, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Akira TAKEDA, Toru WATANABE, Taiji KATSUMATA, Takayuki ITO, Toshihiko SAWADA
  • Publication number: 20160108315
    Abstract: An optically anisotropic layer is formed by a liquid crystal compound represented by General Formula 1, in which the long axes of the molecules are oriented. wherein L1 and L2 independently represent a linking group having a carbonyl group; F1 and F2 independently represent an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a halogen atom; n and m independently represent an integer from 0 to 4; a and b independently represent an integer from 1 to 4; T1 and T2 independently represent a spacer portion including a straight chain or branched alkylene or alkylene oxide group having 2 to 20 carbon atoms; and Ar represents a divalent group having at least one aromatic ring selected from a group consisting of aromatic hydrocarbon rings and aromatic heterocycles, the number of ? electrons in the Ar group being 8 or greater.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 21, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Hiroshi MATSUYAMA, Ryoji GOTO, Hiroyuki ISHIKAWA, Keita TAKAHASHI, Taiji KATSUMATA
  • Patent number: 8240838
    Abstract: An ink composition for inkjet recording is provided. The ink composition contains (a) a monomer containing a fluorinated alkylene group and two or more polymerizable groups, (b) a photo initiator, and (c) a polymerizable monomer.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: August 14, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Kazuhiro Yokoi, Taiji Katsumata
  • Patent number: 8187704
    Abstract: An optical film, includes: a transparent support; and at least one low refractive index layer, wherein the at least one low refractive index layer is a layer formed from a coating composition containing: (A) an inorganic fine particle; (B) a fluorine-containing copolymer; and (C) a polyfunctional fluorine-containing acrylate, and the polyfunctional fluorine-containing acrylate (C) is represented by the following structural formula: wherein Rf represents a (p+q)-valent perfluoro saturated hydrocarbon group having a carbon number of 1 to 20, which may have an ether bond; p represents an integer of 2 to 10; q represents an integer of 0 to 8, provided that (p+q) represents an integer of 2 to 10; r represents an integer of 0 to 100; and R represents a hydrogen atom, a methyl group, a fluorine atom or a trifluoromethyl group.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: May 29, 2012
    Assignee: Fujifilm Corporation
    Inventors: Daiki Wakizaka, Taiji Katsumata