Patents by Inventor Tetsu Kitamura

Tetsu Kitamura 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: 20230416442
    Abstract: A protective layer to be used in a foldable device having a cover window containing glass, contains: at least one of the following (A), (B), or (C), wherein (A) is a polymerized substance of a polymerizable compound which has one or more hydrogen bonding group and three or more (meth)acryloyl groups in a molecule of the polymerizable compound, in which a hydrogen-bonding proton value is 3.5 mol/kg or more and a (meth)acryloyl value is 4.8 mol/kg or more, (B) is a compound including a metal coordinate bond, and (C) is a compound including a host-guest binding.
    Type: Application
    Filed: September 14, 2023
    Publication date: December 28, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Ayako MATSUMOTO, Nobuyuki AKUTAGAWA, Yuta FUKUSHIMA, Tetsu KITAMURA
  • Patent number: 11844229
    Abstract: An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 12, 2023
    Assignee: UDC Ireland Limited
    Inventors: Tetsu Kitamura, Koji Takaku, Wataru Sotoyama, Yasunori Yonekuta, Toshihiro Ise, Saki Takada, Toru Watanabe
  • Patent number: 11744144
    Abstract: An organic electroluminescent element including a luminescent compound represented by the following formula (in which R1 to R14 each independently represent a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a cyano group, an amino group, an alkoxy group, an aryloxy group, a thio group, or a silyl group, and 8 to 13 groups out of R1 to R14 each represent a hydrogen atom or a deuterium atom) in a light emitting layer has high durability and excellent chromaticity.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: August 29, 2023
    Assignee: UDC Ireland Limited
    Inventors: Toru Watanabe, Yuki Hirai, Tianhua Ouyang, Koji Takaku, Wataru Sotoyama, Tetsu Kitamura, Yasunori Yonekuta
  • Patent number: 11563178
    Abstract: The disclosure relates to organic electroluminescent elements, compounds for use in the elements, and devices using the elements, which include a compound represented by the following General Formula (1): where R1 to R3 and R6 to R8 each independently represents a hydrogen atom, which may be a deuterium atom, or a substituent with a Hammett substituent constant ?p value of ?0.15 or more, R5, R9 and R10 each independently represents a hydrogen atom or a substituent, L1 represents a divalent linking group, DG1 represents a donor group, and n1 represents 1 or 2, and where R1 to R3, R5 to R10, L1, and DG1 are not bound to each other to form a ring.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: January 24, 2023
    Assignee: UDC IRELAND LIMITED
    Inventors: Koji Takaku, Yasunori Yonekuta, Wataru Sotoyama, Katsuyuki Youfu, Yuki Hirai, Tetsu Kitamura, Toru Watanabe, Tianhua Ouyang
  • Patent number: 11530334
    Abstract: A hardcoat film includes a substrate; a hardcoat layer; and an anti-scratch layer, where the hardcoat layer includes a cured product of polyorganosilsesquioxane, the polyorganosilsesquioxane has a siloxane constitutional unit containing a (meth)acryloyl group and a siloxane constitutional unit containing an epoxy group and is represented by the General Formula (1), a film thickness of the anti-scratch layer is 0.05 to 5 ?m, and the anti-scratch layer includes a cured product of a compound having two or more (meth)acryloyl groups in one molecule, where Ra represents a group containing a (meth)acryloyl group; Rb represents a group containing an epoxy group; Rc represents a monovalent substituent; p, q, and r represent a proportion of Ra, Rb, and Rc in the General Formula (1) respectively; p+q+r is 100; p and q are greater than 0; r is equal to or greater than 0; p/q is 0.01 to 99.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: December 20, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Tetsu Kitamura, Akio Tamura, Yuta Fukushima
  • Publication number: 20220056228
    Abstract: A hardcoat film includes: a substrate; and a hardcoat layer, in which the hardcoat film satisfies the following Formulas (i) and (ii), (i) E?(0.4)HC×dHC?8,000 MPa·?m, (ii) E?(4)HC×dHC?4,000 MPa·?m, E?(0.4)HC is an elastic modulus of the hardcoat layer obtained in a case where an elongation rate is 0.4%, E?(4)HC is an elastic modulus of the hardcoat layer obtained in a case where an elongation rate is 4%, and dHC is a film thickness of the hardcoat layer.
    Type: Application
    Filed: November 8, 2021
    Publication date: February 24, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Nobuyuki AKUTAGAWA, Ayako MATSUMOTO, Yuta FUKUSHIMA, Akio TAMURA, Tetsu KITAMURA, Yuzo NAGATA
  • Patent number: 11230669
    Abstract: The present invention provides a liquid crystal film having an optically anisotropic layer having excellent alignment and excellent adhesiveness. The present invention further provides an optical laminate, a circularly polarizing plate, and an organic EL display device, each of which uses the optically anisotropic layer. The liquid crystal film of an embodiment of the present invention is a liquid crystal film having at least an optically anisotropic layer formed with a liquid crystal composition including a polymerizable liquid crystal compound and a fluoroaliphatic group-containing copolymer, and a support, in which the fluoroaliphatic group-containing copolymer has a repeating unit derived from a fluoroaliphatic group-containing monomer represented by General Formula (1) and a repeating unit having a polymerizable group polymerizable with the polymerizable liquid crystal compound.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 25, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Nobuyuki Akutagawa, Keisuke Yoshimasa, Akio Tamura, Reiko Inushima, Tetsu Kitamura
  • Publication number: 20220019101
    Abstract: The present invention is to provide a laminated glass having excellent impact resistance and a projection image display system. The laminated glass of the present invention includes a first glass plate, an alignment film containing a vinyl alcohol resin, a retardation layer formed of a composition containing a polymerizable liquid crystal compound and a compound represented by Formula (1), a cholesteric liquid crystal layer, and a second glass plate in this order.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 20, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Tetsu KITAMURA, Shusuke ARITA, Akio TAMURA
  • Publication number: 20210363306
    Abstract: A polyorganosilsesquioxane includes: a constitutional unit (a) having a fluorine atom-containing group; a constitutional unit (b) having a cationically polymerizable group; and a constitutional unit (c) having a radically polymerizable group.
    Type: Application
    Filed: August 4, 2021
    Publication date: November 25, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yuzo NAGATA, Tetsu KITAMURA, Reiko INUSHIMA, Akio TAMURA, Nobuyuki AKUTAGAWA
  • Publication number: 20210284866
    Abstract: A hardcoat film has a substrate, a hardcoat layer, and an anti-scratch layer in this order. The anti-scratch layer contains a cured product of polyorganosilsesquioxane (c1) having a group containing a radically polymerizable double bond.
    Type: Application
    Filed: December 29, 2020
    Publication date: September 16, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yuta FUKUSHIMA, Akio TAMURA, Tetsu KITAMURA
  • Publication number: 20210023827
    Abstract: A hardcoat film has a substrate, a hardcoat layer, and a mixed layer in this order. The hardcoat layer contains a cured product of polyorganosilsesquioxane (a1) having an epoxy group. The mixed layer contains a cured product of a compound (b1) having an epoxy group and a cured product of a compound (b2) having two or more (meth)acryloyl groups in one molecule.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 28, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yuta FUKUSHIMA, Ayako MATSUMOTO, Tetsu KITAMURA, Akio TAMURA, Keigo UEKI
  • Patent number: 10903428
    Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one layer of organic layers including a light emitting layer, disposed between the electrodes, in which at least one of the organic layers contains a compound represented by the following general formula: (R1 to R18 each independently represent a hydrogen atom or a substituent, and at least one of R1 to R8 and R10 to R17 represents -L-NR19R20 (R19 and R20 each independently represent any of an alkyl group, an aryl group, a heteroaryl group. R19 and R20 may be combined to each other to form a ring. L represents a single bond or a divalent linking group). X1 to X18 each independently represent a carbon atom or a nitrogen atom, and when X1 to X18 represent nitrogen atoms, R1 to R18 for bonding do not present.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: January 26, 2021
    Assignee: UDC IRELAND LIMITED
    Inventors: Tetsu Kitamura, Tenka Ouyo, Yuki Hirai, Koji Takaku, Wataru Sotoyama, Masaru Kinoshita, Kuniyuki Kaminaga, Yosuke Yamamoto
  • Publication number: 20200399503
    Abstract: A composition for forming a hardcoat layer includes a polyorganosilsesquioxane; and a polymerization initiator, in which the polyorganosilsesquioxane has, at least, a siloxane constitutional unit containing an oxetanyl group and a siloxane constitutional unit containing an epoxy group and is represented by the General Formula (1), in the General Formula (1), Ra represents a group containing an oxetanyl group; Rb represents a group containing an epoxy group; Rc represents a monovalent substituent; Ra, Rb, and Rc each have a structure including none of an amide bond, a urea bond, and a urethane bond; p and q represent an integer equal to or greater than 1; r represents an integer equal to or greater than 0; p/q is equal to or greater than 1.0 and less than 99.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Tetsu KITAMURA, Akio TAMURA, Yuta FUKUSHIMA
  • Publication number: 20200398542
    Abstract: A hardcoat film includes a substrate; a hardcoat layer; and an anti-scratch layer, where the hardcoat layer includes a cured product of polyorganosilsesquioxane, the polyorganosilsesquioxane has a siloxane constitutional unit containing a (meth)acryloyl group and a siloxane constitutional unit containing an epoxy group and is represented by the General Formula (1), a film thickness of the anti-scratch layer is 0.05 to 5 ?m, and the anti-scratch layer includes a cured product of a compound having two or more (meth)acryloyl groups in one molecule, where Ra represents a group containing a (meth)acryloyl group; Rb represents a group containing an epoxy group; Rc represents a monovalent substituent; p, q, and r represent a proportion of Ra, Rb, and Rc in the General Formula (1) respectively; p+q+r is 100; p and q are greater than 0; r is equal to or greater than 0; p/q is 0.01 to 99.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Tetsu Kitamura, Akio Tamura, Yuta Fukushima
  • Publication number: 20200335706
    Abstract: As an organic electroluminescence device that exhibits superior external quantum efficiency and durability during driving at high temperature, and small variation in chromaticity and small increase in voltage after driving at high temperatures and has long lifespan, it is provided that the organic electroluminescence device including on a substrate a pair of electrodes and at least one layer of an organic layer including a light emitting layer disposed between the electrodes, wherein the light emitting layer contains at least one specific iridium complex and any layer of the at least one layer of an organic layer contains at least one compound represented by Formula (1): wherein in Formula (1), each of R1 to R5 independently represents a specific group or atom, n1 represents an integer of 0 to 5, and each of n2 to n5 independently represents an integer of 0 to 4.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Inventors: Toru WATANABE, Tetsu KITAMURA, Toshihiro ISE
  • Patent number: 10804469
    Abstract: [This] charge transport material which comprises a compound expressed by the following formula has a high efficiency and drive durability after high-temperature storage and resists the occurrence of dark spots (X101 represents a sulfur atom or an oxygen atom; R101 and R102 represent each independently an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, or a silyl group, and may further be substituted with these groups; n101 represents an integer from 0 to 11; n102 represents an integer from 0 to 7; a plurality of R101 and R102 [groups] may be the same or different; and L101 represents a single bond or a divalent linking group; however, one of R101, L101, and R102 includes a fluorine atom, a fluoroalkyl group, a cycloalkyl group, a cycloalkylene group, a silyl group, an alkylsilyl group, an arylsilyl group, or a silicon atom linking group.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: October 13, 2020
    Assignee: UDC IRELAND LIMITED
    Inventors: Tetsu Kitamura, Kousuke Watanabe
  • Patent number: 10717706
    Abstract: An m-phenylenediamine compound is represented by the following General Formula (I), (II), or (III). R1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, or an aryl group. R2, R3, and R4 each represent an alkyl group. R5 and R6 each represent an alkyl group. X represents a chlorine atom or a bromine atom. A method for producing a polymer compound includes obtaining a polymer compound by using the m-phenylenediamine compound represented by General Formula (I) as a raw material.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 21, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Koji Hironaka, Shohei Kataoka, Masato Senoo, Tetsu Kitamura, Sotaro Inomata, Satoshi Sano, Masatoshi Yumoto
  • Publication number: 20200203648
    Abstract: An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 25, 2020
    Inventors: Tetsu KITAMURA, Koji TAKAKU, Wataru SOTOYAMA, Yasunori YONEKUTA, Toshihiro ISE, Saki TAKADA, Toru WATANABE
  • Publication number: 20200109333
    Abstract: The present invention provides a liquid crystal film having an optically anisotropic layer having excellent alignment and excellent adhesiveness. The present invention further provides an optical laminate, a circularly polarizing plate, and an organic EL display device, each of which uses the optically anisotropic layer. The liquid crystal film of an embodiment of the present invention is a liquid crystal film having at least an optically anisotropic layer formed with a liquid crystal composition including a polymerizable liquid crystal compound and a fluoroaliphatic group-containing copolymer, and a support, in which the fluoroaliphatic group-containing copolymer has a repeating unit derived from a fluoroaliphatic group-containing monomer represented by General Formula (1) and a repeating unit having a polymerizable group polymerizable with the polymerizable liquid crystal compound.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Nobuyuki AKUTAGAWA, Keisuke YOSHIMASA, Akio TAMURA, Reiko INUSHIMA, Tetsu KITAMURA
  • Publication number: 20200058883
    Abstract: An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which the organic layer includes a compound represented by the following general formula, has high luminous efficiency, excellent blue color purity, and a small change in the chromaticity due to deterioration by driving (Cy represents a fused aromatic ring structure having the number of constituent rings of 3 or more, and has Dn1 and Ac1 as different constituent rings, and each of the constituent rings are all hydrocarbon rings. Dn1 represents NR11, an O atom, or an S atom. Ac1 represents an electron absorbing substituent, an aryl group having an electron absorbing substituent, or an electron deficient heteroaryl group. The ring Z1 represents an arylene group or a heteroarylene group. L1, L2 and L3 represent specific linking groups.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Inventors: Koji Takaku, Tetsu Kitamura, Wataru Sotoyama, Yasunori Yonekuta, Toru Watanabe, Toshihiro Ise, Saki Takada