Patents by Inventor Yasunori Yonekuta

Yasunori Yonekuta 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: 9711733
    Abstract: An organic thin film transistor containing a compound represented by one of the following formulae in a semiconductor active layer has a high carrier mobility and a small change in the threshold voltage after repeated driving. X represents S or O, and at least one of R1 to R6 represents -L-R wherein L represents alkylene, etc., and R represents alkyl, etc.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 18, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Koji Takaku, Yasunori Yonekuta, Wataru Sotoyama, Masaru Kinoshita
  • Patent number: 9653686
    Abstract: An organic film transistor containing a compound, which is composed of n repeating units represented by Formula (1-1), (1-2), or (101), in a semiconductor active layer is an organic film transistor using a compound that results in high carrier mobility when being used in the semiconductor active layer of the organic film transistor and exhibits high solubility in an organic solvent; (Each of R1 R2 represents a hydrogen atom or a substituent; each of Ar1 and Ar2 independently represents a heteroarylene group or an arylene group; V1 represents a divalent linking group; m represents an integer of 0 to 6; cy represents a naphthalene ring or an anthracene ring; each of R3 and R4 represents a hydrogen atom or a substituent; each of Ar3 and Ar4 represents a heterocyclic aromatic ring or an aromatic ring; V2 represents a divalent linking group; p represents an integer of 0 to 6; n represents an integer of equal to or greater than 2; A is a divalent linking group represented by Formula (101?); each of RA1 to RA6
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: May 16, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Koji Takaku, Akihiro Kaneko, Hiroki Sugiura, Kensuke Masui, Yasunori Yonekuta, Yuki Hirai, Masashi Koyanagi
  • Patent number: 9647214
    Abstract: An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has a high effect of inhibition of voltage during high-luminance driving: wherein R1 to R6; E1 and E2; X1 and X2; and A1 to A8 are as defined herein.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: May 9, 2017
    Assignee: UDC Ireland Limited
    Inventors: Saki Takada, Koji Takaku, Yasunori Yonekuta, Toshihiro Ise
  • Patent number: 9627623
    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. At least one kind of a compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate. Wherein: L1 to L4, n1 to n4, A1, A5, A6, A10 and, R are as defined in the application.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 18, 2017
    Assignee: UDC Ireland Limited
    Inventors: Koji Takaku, Saki Takada, Yasunori Yonekuta, Toshihiro Ise
  • Patent number: 9620720
    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 at least one kind of compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate: wherein X, Q, R1 to R8 are as defined in the application.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 11, 2017
    Assignee: UDC Ireland Limited
    Inventors: Koji Takaku, Tetsu Kitamura, Yasunori Yonekuta, Saki Takada, Toshihiro Ise
  • Patent number: 9608207
    Abstract: An organic electroluminescence element that uses a compound expressed by the following general formula has low inter-molecular interaction and high orientation during vapor deposition, and by using compounds that are resistant to aggregation, luminous efficiency is high, and there is little change in chromaticity accompanying drive deterioration (either V1 or W1 and either V2 or W2 form rings, the rings formed by V1 and V2 are six-membered rings, and the rings formed by W1 and W2 are five-membered rings; A2 to A4 and A6 to A8 represent CRZ or N, and RZ represents a hydrogen atom or a substituent; and R2, R3, R7, and R8 represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a hydrogen atom [sic], or a deuterium atom.).
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: March 28, 2017
    Assignee: UDC Ireland Limited
    Inventors: Koji Takaku, Tetsu Kitamura, Toru Watanabe, Yasunori Yonekuta
  • Publication number: 20160372663
    Abstract: Provided are an organic thin-film transistor including: a gate electrode, an organic semiconductor layer, a gate insulating layer, and a source electrode and a drain electrode on a substrate, in which the organic semiconductor layer contains an organic semiconductor and a block copolymer, and the block copolymer is at least one selected from specific block copolymers such as a styrene-(meth)acrylate ester block copolymer and may be phase-separated, and a method for manufacturing an organic thin-film transistor, which includes an organic semiconductor containing a phase-separated block copolymer, including: applying a coating solution which contains an organic semiconductor and a block copolymer for film formation; and heating the obtained film so that the block copolymer is self-assembled.
    Type: Application
    Filed: August 31, 2016
    Publication date: December 22, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Hiroo TAKIZAWA, Teruki NIORI, Yasunori YONEKUTA, Hayato YOSHIDA
  • Publication number: 20160372662
    Abstract: An organic thin-film transistor including: a gate electrode, an organic semiconductor layer, a gate insulating layer, a source electrode, and a drain electrode on a substrate, in which the organic semiconductor layer includes an organic semiconductor and a resin (C) having one or more groups selected from the group consisting of a group having fluorine atoms, a group having silicon atoms, an alkyl group having one or more carbon atoms or having two or more carbon atoms in a case of forming an alkoxycarbonyl group, a cycloalkyl group, an aralkyl group, an aryloxycarbonyl group, an aromatic ring group substituted with at least one alkyl group, and an aromatic ring group substituted with at least one cycloalkyl group; and a method for manufacturing an organic thin-film transistor including: applying a coating solution which contains the organic semiconductor and the resin (C) and causing the resin (C) to be unevenly distributed.
    Type: Application
    Filed: August 31, 2016
    Publication date: December 22, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Hiroo TAKIZAWA, Teruki NIORI, Yasunori YONEKUTA, Syuji HIRANO
  • Patent number: 9508934
    Abstract: An organic film transistor containing a compound, which is composed of n repeating units represented by Formula (101-1), in a semiconductor active layer is an organic film transistor using a compound having high carrier mobility and high solubility in an organic solvent; where each of R111 to R114 independently represents a hydrogen atom or a substituent; each of Ar101 and Ar102 independently represents a heteroarylene group or an arylene group; V101 represents a divalent linking group; m represents an integer of 0 to 6; when m is equal to or greater than 2, two or more groups represented by V101 may be the same as or different from each other; and n is equal to or greater than 2.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: November 29, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Kaneko, Koji Takaku, Yasunori Yonekuta, Yuki Hirai, Hiroki Sugiura, Masashi Koyanagi, Kensuke Masui
  • Patent number: 9412963
    Abstract: The disclosure relates to organic electroluminescent elements, materials for use in the elements, and devices using the elements, which include a compound represented by the following General Formula (1): where R1 to R12 each independently represents a hydrogen atom or a substituent and which may be bound to each other to form a non-aromatic ring, where Z1 to Z4 each independently represents a hydrogen atom or a substituent, and where Z1 and Z2, and Z3 and Z4 may be bound to each other to form a ring.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: August 9, 2016
    Assignee: UDC Ireland Limited
    Inventors: Koji Takaku, Yasunori Yonekuta, Katsuyuki Youfu, Wataru Sotoyama, Tianhua Ouyang, Tetsu Kitamura, Toru Watanabe
  • Publication number: 20160126460
    Abstract: An organic film transistor containing a compound, which is composed of n repeating units represented by Formula (1-1), (1-2), (101-1), or (101-2), in a semiconductor active layer is an organic film transistor using a compound having high carrier mobility and high solubility in an organic solvent. (Cy represents a benzene ring, a naphthalene ring, or an anthracene ring; each of R11 to R14 and R15 to R18 independently represents a hydrogen atom or a substituent; each of Ar1 to Ar4 independently represents a heteroarylene group or an arylene group; each of V1 and V2 represents a divalent linking group; m represents an integer of 0 to 6; when m is equal to or greater than 2, two or more groups represented by V1 may be the same as or different from each other; n is equal to or greater than 2; p represents an integer of 0 to 6; and when p is equal to or greater than 2, two or more groups represented by V2 may be the same as or different from each other.
    Type: Application
    Filed: January 12, 2016
    Publication date: May 5, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Akihiro KANEKO, Koji TAKAKU, Yasunori YONEKUTA, Yuki HIRAI, Hiroki SUGIURA, Masashi KOYANAGI, Kensuke MASUI
  • Publication number: 20160126459
    Abstract: An organic film transistor containing a compound, which is composed of n repeating units represented by Formula (1-1), (1-2), or (101), in a semiconductor active layer is an organic film transistor using a compound that results in high carrier mobility when being used in the semiconductor active layer of the organic film transistor and exhibits high solubility in an organic solvent.
    Type: Application
    Filed: January 12, 2016
    Publication date: May 5, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Koji TAKAKU, Akihiro KANEKO, Hiroki SUGIURA, Kensuke MASUI, Yasunori YONEKUTA, Yuki HIRAI, Masashi KOYANAGI
  • Publication number: 20160049592
    Abstract: An organic thin film transistor containing a compound represented by the formula (1) in a semiconductor active layer has a high carrier mobility, a small change in the threshold voltage after repeated driving and a high solubility in an organic solvent. A1 and A2 represent S, O or Se; at least one of R1 to R6 represents a substituent represented by *-L-R wherein L represents a divalent linking group and R represents a hydrogen atom, an alkyl group, an oligooxyethylene group, an oligosiloxane group or a trialkylsilyl group.
    Type: Application
    Filed: September 25, 2015
    Publication date: February 18, 2016
    Applicant: FUJIFILM CORPORATION
    Inventors: Yasunori YONEKUTA, Koji TAKAKU, Wataru SOTOYAMA
  • Publication number: 20150340624
    Abstract: An organic thin film transistor containing a compound represented by one of the following formulae in a semiconductor active layer has a high carrier mobility and a small change in the threshold voltage after repeated driving. X represents S or O, and at least one of R1 to R6 represents -L-R wherein L represents alkylene, etc., and R represents alkyl, etc.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Koji TAKAKU, Yasunori YONEKUTA, Wataru SOTOYAMA, Masaru KINOSHITA
  • Publication number: 20150084016
    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: Application
    Filed: October 5, 2012
    Publication date: March 26, 2015
    Applicant: UDC IRELAND LIMITED
    Inventors: Toru Watanabe, Yuki Hirai, Tianhua Ouyang, Koji Takaku, Wataru Sotoyama, Tetsu Kitamura, Yasunori Yonekuta
  • Publication number: 20150076462
    Abstract: An organic electroluminescent element comprising a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer which is arranged between the electrodes and which includes a light emitting layer, wherein the organic layer contains a compound represented by general formula (1) in at least one layer. The organic electroluminescent element has a high luminous efficiency, excellent blue color purity, and little chromaticity change due to drive deterioration. (In the formula, the two Xs either both represent an O atom or both represent an S atom, and R1-R10 each independently represents a hydrogen atom or a substituent group).
    Type: Application
    Filed: October 5, 2012
    Publication date: March 19, 2015
    Applicant: UDC IRELAND LIMITED
    Inventors: Tetsu Kitamura, Koji Takaku, Wataru Sotoyama, Yasunori Yonekuta, Toru Watanabe, Masaru Kinoshita
  • Publication number: 20150053936
    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 (1), has high luminous efficiency, excellent blue color purity, and a small change in the chromaticity due to deterioration by driving, wherein Cy, Dn1, Ac1, L1, L2, L3, ring Z1, u1, q1, n1, m1, A11, and A12 are as defined herein.
    Type: Application
    Filed: August 2, 2012
    Publication date: February 26, 2015
    Applicant: UDC IRELAND LIMITED
    Inventors: Koji Takaku, Tetsu Kitamura, Wataru Sotoyama, Yasunori Yonekuta, Toru Watanabe, Toshihiro Ise, Saki Takada
  • Publication number: 20140339519
    Abstract: An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has a high effect of inhibition of voltage during high-luminance driving: wherein R1 to R6; E1 and E2; X1 and X2; and A1 to A8 are as defined herein.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 20, 2014
    Applicant: UDC IRELAND LIMITED
    Inventors: Saki Takada, Koji Takaku, Yasunori Yonekuta, Toshihiro Ise
  • Publication number: 20140326966
    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. At least one kind of a compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate. Wherein: L1 to L4, n1 to n4, A1, A5, A6, A10 and, R are as defined in the application.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 6, 2014
    Applicant: UDC IRELAND LIMITED
    Inventors: Koji Takaku, Saki Takada, Yasunori Yonekuta, Toshihiro Ise
  • Publication number: 20140299851
    Abstract: An organic electroluminescence element that uses a compound expressed by the following general formula has low inter-molecular interaction and high orientation during vapor deposition, and by using compounds that are resistant to aggregation, luminous efficiency is high, and there is little change in chromaticity accompanying drive deterioration (either V1 or W1 and either V2 or W2 form rings, the rings formed by V1 and V2 are six-membered rings, and the rings formed by W1 and W2 are five-membered rings; A2 to A4 and A6 to A8 represent CRZ or N, and RZ represents a hydrogen atom or a substituent; and R2, R3, R7, and R8 represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a hydrogen atom [sic], or a deuterium atom.).
    Type: Application
    Filed: April 11, 2012
    Publication date: October 9, 2014
    Applicant: UDC Ireland Limited
    Inventors: Koji Takaku, Tetsu Kitamura, Toru Watanabe, Yasunori Yonekuta