Patents by Inventor Yasuhiro Ishiwata

Yasuhiro Ishiwata 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: 20210109270
    Abstract: An object of the present invention is to provide a polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer of the present invention is a polarizer which is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and an array structure formed of the second dichroic material.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Yoshiaki TAKADA, Yasuhiro ISHIWATA, Yuzo FUJIKI, Kengo SAITO
  • Publication number: 20210055604
    Abstract: An object of the present invention is to provide a polarizer having a high degree of alignment and an image display device including the polarizer. A polarizer of the present invention is a polarizer formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material.
    Type: Application
    Filed: September 22, 2020
    Publication date: February 25, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Yoshiaki TAKADA, Yuzo FUJIKI, Kengo SAITO, Yasuhiro ISHIWATA, Takashi KATOU, Keisuke USHIROGATA
  • Patent number: 10875950
    Abstract: Provided are a coloring composition having excellent heat resistance and solvent resistance, a cured film, a color filter, a method for manufacturing a color filter, a solid-state imaging device, an image display device, and a polymer. The coloring composition includes a polymer TP consisting only of a repeating unit A having a triarylmethane structure and a repeating unit B having an acid group, and a polymerizable compound, in which the polymer TP contain the repeating unit B in the amount of 12% to 60% by mass with respect to all the repeating units of the polymer TP.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: December 29, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yuta Takasaki, Takuma Amemiya, Yasuhiro Ishiwata, Atsuyasu Nozaki, Hiroaki Idei, Atsushi Nakayama, Akinori Fujita
  • Publication number: 20200354576
    Abstract: Provided are a dyeing composition which contains an azo coloring agent represented by Formula 1 or 2, a dyed product which is obtained by being dyed with the dyeing composition, and a novel azo coloring agent. In Formulae 1 and 2, C1 represents a heteroaromatic group, A1 and B1 each independently represent a heteroaromatic group, an aromatic group, or a group having a methine structure, and at least one of A1 or B1 represents a heteroaromatic group, D1 represents an anthraquinonyl group, and E1 represents a heteroaromatic group, an aromatic group, or a group having a methine structure.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Akinori FUJITA, Yasuhiro ISHIWATA, Yoshihiro JIMBO
  • Publication number: 20190382586
    Abstract: An object of the invention is to provide a dichroic substance capable of forming a light absorption anisotropic film having excellent light fastness, a composition, a light absorption anisotropic film formed of the composition, a laminate, and an image display device. A composition according to the embodiment of the invention is a composition containing a dichroic substance having an azo group, and the dichroic substance exhibits a highest occupied molecular orbital energy level of ?5.60 eV or less and a CLogP value of 7.0 or greater.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Takashi KATOU, Yasuhiro ISHIWATA
  • Patent number: 10351526
    Abstract: The present invention provides a colored curable resin composition that exhibits good heat resistance and durability in a sputtering process, a cured film, a color filter, a method for manufacturing a color filter, a solid-state image device, an image display device, a compound, and a cation. The colored curable resin composition contains a colorant represented by Formula (1), Formula (2), or Formula (3), a resin, a polymerizable compound, and a polymerization initiator. In Formula (1), R101 and R102 each independently represent a hydrogen atom or a substituent, R103 to R106 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group, R107 to R111 each independently represent a hydrogen atom or a substituent, n1 to n4 each independently represent an integer of 0 to 4, n5 represents an integer of 0 to 6, X represents an anion or is not present, and at least one of R101, . . .
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: July 16, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yasuhiro Ishiwata, Kazunari Yagi, Akinori Fujita, Koutaro Okabe
  • Publication number: 20180162976
    Abstract: Provided are a coloring composition having excellent heat resistance and solvent resistance, a cured film, a color filter, a method for manufacturing a color filter, a solid-state imaging device, an image display device, and a polymer. The coloring composition includes a polymer TP consisting only of a repeating unit A having a triarylmethane structure and a repeating unit B having an acid group, and a polymerizable compound, in which the polymer TP contain the repeating unit B in the amount of 12% to 60% by mass with respect to all the repeating units of the polymer TP.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 14, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Yuta TAKASAKI, Takuma AMEMIYA, Yasuhiro ISHIWATA, Atsuyasu NOZAKI, Hiroaki IDEI, Atsushi NAKAYAMA, Akinori FUJITA
  • Patent number: 9720319
    Abstract: Provided are a colored composition having excellent heat resistance, excellent solvent resistance, and an excellent voltage holding ratio; a cured film; a color filter; a method for manufacturing a color filter; a solid-state imaging element; an image display device; and a compound. The colored composition includes a colorant comprising a repeating unit having a triarylmethane structure containing a cation, and a counter anion, and a polymerizable compound.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 1, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Akinori Fujita, Satoshi Higuchi, Takashi Katoh, Yasuhiro Ishiwata, Koutaro Okabe
  • Publication number: 20170081517
    Abstract: The present disclosure provides a compound represented by the following formula (1).
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: Yasuhiro ISHIWATA, Masaaki TSUKASE
  • Publication number: 20160376234
    Abstract: The present invention provides a colored curable resin composition that exhibits good heat resistance and durability in a sputtering process, a cured film, a color filter, a method for manufacturing a color filter, a solid-state image device, an image display device, a compound, and a cation. The colored curable resin composition contains a colorant represented by Formula (1), Formula (2), or Formula (3), a resin, a polymerizable compound, and a polymerization initiator. In Formula (1), R101 and R102 each independently represent a hydrogen atom or a substituent, R103 to R106 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group, R107 to R111 each independently represent a hydrogen atom or a substituent, n1 to n4 each independently represent an integer of 0 to 4, n5 represents an integer of 0 to 6, X represents an anion or is not present, and at least one of R101, . . .
    Type: Application
    Filed: September 8, 2016
    Publication date: December 29, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Yasuhiro ISHIWATA, Kazunari YAGI, Akinori FUJITA, Koutaro OKABE
  • Patent number: 9493705
    Abstract: A polymerizable liquid-crystal compound of formula (I) effective for preventing crystal deposition after coating with polymerizable liquid crystal (II) or a polymerizable liquid crystal similar thereto. P represents a polymerizable functional group; Sp represents a spacer or a single bond; Z1 and Z2 each represent —CO—O—; R0 represents a linear alkyl group having 1-15 carbon atoms; R2, R3 and R4 each independently represent an alkyl group having 1-4 carbon atoms, an alkoxy group having 1-4 carbon atoms, an alkoxycarbonyl group having 2-5 carbon atoms, an acyloxy group having 2-5 carbon atoms, an acyl group having 2-4 carbon atoms, an amide group having 2-5 carbon atoms, a cyano group, an amino group, a hydroxyl group, or a halogen atom; r1, r2 and r3 indicate an integer from 0-4; when r1, r2 and r3 each are 2 or more, then R2, R3 and R4 each may be the same or different; however, when R0 is a methyl group, then r2 is not 1.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 15, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Minoru Uemura, Yasuhiro Ishiwata, Masaru Yoshikawa, Takao Taguchi, Tomoki Tasaka
  • Patent number: 9481829
    Abstract: A compound represented by the following formula (1) has sufficient solubility, a wide usable concentration range, and excellent haze-lowering performance. In the formula, L1 to L6 represent a single bond, —O—, —CO—, —COO—, etc; Sp1 to Sp4 represent a single bond or alkylene of 1 to 10 carbon atoms; A1 and A2 represent trivalent or tetravalent aromatic hydrocarbon or heterocyclic; T represents the following formulae, etc; Hb represent perfluoroalkyl of 2 to 30 carbon atoms; m and n are 2 or 3; and o and p are an integer of 0 or more.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: November 1, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Mizumura, Shunya Katoh, Minoru Uemura, Yasuhiro Ishiwata, Masaru Yoshikawa, Hiroshi Matsuyama
  • Patent number: 9481830
    Abstract: A cholesteric liquid-crystal mixture containing a compound represented by the general formula (Ia), a compound represented by the general formula (Ib), a fluorine-containing horizontal alignment agent and a polymerization initiator is capable of forming a film which is prevented from precipitation of liquid-crystal compounds therein, of which the haze is reduced and which has a broad reflection width.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: November 1, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Tomoki Tasaka, Yasuhiro Ishiwata, Minoru Uemura, Takao Taguchi, Masao Nakajima, Shunya Katoh
  • Patent number: 9482924
    Abstract: A colored composition includes: an azomethine pigment represented by the following Formula (1) and having a solubility in n-hexane of 1% by mass or more at 25° C. and 0.1 MPa; and a non-polar solvent: wherein, in Formula (1), Het1 represents a ring having no dissociable group and Ar represents an aromatic ring having no dissociable group or a saturated heterocycle having no dissociable group.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 1, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Kato, Yasuhiro Ishiwata, Hiroyuki Naito
  • Publication number: 20160216604
    Abstract: Provided are a colored composition having excellent heat resistance, excellent solvent resistance, and an excellent voltage holding ratio; a cured film; a color filter; a method for manufacturing a color filter; a solid-state imaging element; an image display device; and a compound. The colored composition includes a colorant comprising a repeating unit having a triarylmethane structure containing a cation, and a counter anion, and a polymerizable compound.
    Type: Application
    Filed: March 29, 2016
    Publication date: July 28, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Akinori FUJITA, Satoshi HIGUCHI, Takashi KATOH, Yasuhiro ISHIWATA, Koutaro OKABE
  • Patent number: 9335538
    Abstract: An electrowetting display device that includes a display member having: a first substrate in which at least one surface has conductivity, a second substrate which is disposed to face the conductive surface of the first substrate, a hydrophobic insulating film which is provided on the conductive surface of the first substrate, an oil, which is non-conductive, provided between the hydrophobic insulating film and the second substrate so as to be movable on the hydrophobic insulating film, and containing a nonpolar solvent and a methine dye including two dye mother nuclei that are linked through a linking group having a methine unsaturated chain, and a hydrophilic liquid which is conductive, provided between the hydrophobic insulating film and the second substrate so as to be in contact with the oil.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: May 10, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Naito, Yasuhiro Ishiwata, Takashi Kato
  • Patent number: 9256062
    Abstract: The electrowetting display apparatus includes a display unit including: a first substrate at least one surface of which is electroconductive; a second substrate disposed to face the electroconductive surface of the first substrate; a hydrophobic insulation film disposed on the electroconductive surface side of the first substrate; a non-electroconductive oil which is provided between the hydrophobic insulation film and second substrate movably on the hydrophobic insulation film and includes a non-polar solvent and an azamethine-based colorant containing two colorant mother nuclei bonded via a linking group represented by ?N—; and an electroconductive hydrophilic liquid provided between the hydrophobic insulation film and second substrate to contact the oil; in which an image is displayed by applying a voltage between the hydrophilic liquid and the electroconductive surface of first substrate and changing the shape of interface between the oil and hydrophilic liquid.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: February 9, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Naito, Yasuhiro Ishiwata, Takashi Kato
  • Patent number: 9075281
    Abstract: A colored composition includes: (A) a dye that is selected from the group consisting of a methine dye, an anthraquinone dye and an azomethine dye, and that is a mixture of stereoisomers; and (B) a non-polar solvent.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: July 7, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Kato, Yasuhiro Ishiwata, Hiroyuki Naito
  • Patent number: 9068290
    Abstract: A coloring composition for inkjet textile printing, containing water and a dye represented by Formula (I) [R1 represents H, halogen, alkyl, aralkyl, aryl, heteroaryl, alkoxy, or cyano; R2 represents H, halogen, cyano, —COOR6, —COR7, —CONR8R9, or an ionic hydrophilic group; R3 represents alkyl, aralkyl, alkenyl, alkynyl, aryl, or heteroaryl; each of R4 and R5 independently represents H, alkyl, cycloalkyl, aralkyl, alkenyl, alkynyl, aryl, or heteroaryl; R15 represents H or a substituent; X represents alkyl, cycloalkyl, aralkyl, aryl, heteroaryl, —COR12, or —CONR13R14; R6 represents alkyl, aryl, or heteroaryl; each of R7 to R14 independently represents H, alkyl, aryl, or heteroaryl; and a number of ionic hydrophilic groups in one molecule is from 1 to 5].
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: June 30, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kazunari Yagi, Yasuhiro Ishiwata, Yutaro Norizuki
  • Publication number: 20150037546
    Abstract: A coloring composition for inkjet textile printing, containing water and a dye represented by Formula (I) [R1 represents H, halogen, alkyl, aralkyl, aryl, heteroaryl, alkoxy, or cyano; R2 represents H, halogen, cyano, —COOR6, —COR7, —CONR8R9, or an ionic hydrophilic group; R3 represents alkyl, aralkyl, alkenyl, alkynyl, aryl, or heteroaryl; each of R4 and R5 independently represents H, alkyl, cycloalkyl, aralkyl, alkenyl, alkynyl, aryl, or heteroaryl; R15 represents H or a substituent; X represents alkyl, cycloalkyl, aralkyl, aryl, heteroaryl, —COR12, or —CONR13R14; R6 represents alkyl, aryl, or heteroaryl; each of R7 to R14 independently represents H, alkyl, aryl, or heteroaryl; and a number of ionic hydrophilic groups in one molecule is from 1 to 5].
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Inventors: Kazunari YAGI, Yasuhiro ISHIWATA, Yutaro NORIZUKI