Patents by Inventor Yukari Jo

Yukari Jo 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: 9493614
    Abstract: The present invention is based on a polyimide precursor having unit structures represented by general formula (1) and unit structures represented by general formula (2), provides a polyimide precursor for which film whitening, cracking and bubbling do not occur regardless of film baking conditions, and provides a flexible TFT array, a flexible color filter, and a flexible substrate with a gas barrier layer using the polyimide precursor, and a flexible display device, etc. using same. (In general formulas (1) and (2), X1-X4 each independently represents a hydrogen atom, C1 to C10 monovalent organic group or C1 to C10 monovalent alkylsilyl group. R1 is represented by general formula (3) and R2 is represented by general formula (4).) (In general formula (4), R3 and R4 each independently represents a C1 to C10 monovalent organic group.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: November 15, 2016
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Junji Wakita, Yukari Jo, Masao Tomikawa
  • Publication number: 20160002407
    Abstract: The present invention is based on a polyimide precursor having unit structures represented by general formula (1) and unit structures represented by general formula (2), provides a polyimide precursor for which film whitening, cracking and bubbling do not occur regardless of film baking conditions, and provides a flexible TFT array, a flexible color filter, and a flexible substrate with a gas barrier layer using the polyimide precursor, and a flexible display device, etc. using same. (In general formulas (1) and (2), X1-X4 each independently represents a hydrogen atom, C1 to C10 monovalent organic group or C1 to C10 monovalent alkylsilyl group. R1 is represented by general formula (3) and R2 is represented by general formula (4).) (In general formula (4), R3 and R4 each independently represents a C1 to C10 monovalent organic group.
    Type: Application
    Filed: December 26, 2013
    Publication date: January 7, 2016
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junji WAKITA, Yukari JO, Masao TOMIKAWA
  • Patent number: 9048445
    Abstract: To provide a gate insulating material which has high chemical resistance, is superior in coatability of a resist and an organic semiconductor coating liquid, and has small hysteresis, a gate insulating film and an FET using the same by a polysiloxane having an epoxy group-containing silane compound as a copolymerization component.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: June 2, 2015
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Seiichiro Murase, Takenori Fujiwara, Yukari Jo, Jun Tsukamoto
  • Patent number: 8530889
    Abstract: A carbon nanotube composite in which a conjugated polymer containing repeating units containing a fused heteroaryl unit having a nitrogen-containing double bond in the ring, and a thiophene unit is attached to at least a part of the surface of a carbon nanotube. The present invention reduces the hysteresis of a field-effect transistor having a semiconductor layer containing a carbon nanotube.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: September 10, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Yukari Jo, Seiichiro Murase, Daisuke Kitazawa, Jun Tsukamoto
  • Patent number: 8441002
    Abstract: The present invention provides an organic semiconductor composite containing a certain thiophene compound and carbon nanotubes, which can be formed into a film by a coating process such as an inkjet process, has high charge mobility and can maintain a high on/off ratio even in air, an organic transistor material and an organic field effect transistor.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: May 14, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Seiichiro Murase, Yukari Jo, Jun Tsukamoto, Junji Mata
  • Publication number: 20120241730
    Abstract: An organic El element includes an organic compound layer including at least an emissive layer interposed between a pair of electrodes, wherein the emissive layer includes a naphthacene derivative and an amount of a naphthacene precursor compound present in the emissive layer is 5.0 parts by weight or less with respect to 100 parts by weight of the naphthacene derivative.
    Type: Application
    Filed: November 29, 2010
    Publication date: September 27, 2012
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yukari Jo, Nobuhiko Shirasawa, Shigeo Fujimori
  • Patent number: 8269099
    Abstract: A photovoltaic device with high photoelectric conversion efficiency includes an electron donating organic material for photovoltaic devices containing a conjugated polymer represented by formula (1): wherein R1 to R10 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an alkoxy group and an aryl group; R11 and R12 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group and halogen; W, X, Y and Z may be the same or different from each other and are each selected from the group consisting of a single bond, an arylene group, a heteroarylene group, an ethenylene group, and an ethynylene group; m is 0 or 1; n is within a range of 1 to 1000.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: September 18, 2012
    Assignee: Toray Industries, Inc.
    Inventors: Daisuke Kitazawa, Jun Tsukamoto, Yukari Jo
  • Publication number: 20120012833
    Abstract: A light emitting device material precursor represented by the Formula (1): (wherein R1 to R6 each may be the same or different and is selected from the group consisting of hydrogen, alkyl groups, cycloalkyl groups, alkenyl groups, cycloalkenyl groups, alkoxy groups, alkylthio groups, arylether groups, aryl thioether groups, aryl groups and heteroaryl groups, with the proviso that at least one of R1 to R6 has a fused aromatic hydrocarbon having two or more rings).
    Type: Application
    Filed: March 29, 2010
    Publication date: January 19, 2012
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Nobuhiko Shirasawa, Yukari Jo, Shigeo Fujimori
  • Publication number: 20110121273
    Abstract: A carbon nanotube composite in which a conjugated polymer containing repeating units containing a fused heteroaryl unit having a nitrogen-containing double bond in the ring, and a thiophene unit is attached to at least a part of the surface of a carbon nanotube. The present invention reduces the hysteresis of a field-effect transistor having a semiconductor layer containing a carbon nanotube.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 26, 2011
    Inventors: Yukari Jo, Seiichiro Murase, Daisuke Kitazawa, Jun Tsukamoto
  • Publication number: 20110068417
    Abstract: To provide a gate insulating material which has high chemical resistance, is superior in coatability of a resist and an organic semiconductor coating liquid, and has small hysteresis, a gate insulating film and an FET using the same by a polysiloxane having an epoxy group-containing silane compound as a copolymerization component.
    Type: Application
    Filed: February 27, 2009
    Publication date: March 24, 2011
    Applicant: Toray Industries, Inc.
    Inventors: Seiichiro Murase, Takenori Fujiwara, Yukari Jo, Jun Tsukamoto
  • Publication number: 20100102299
    Abstract: The present invention provides an organic semiconductor composite containing a certain thiophene compound and carbon nanotubes, which can be formed into a film by a coating process such as an inkjet process, has high charge mobility and can maintain a high on/off ratio even in air, an organic transistor material and an organic field effect transistor.
    Type: Application
    Filed: January 25, 2008
    Publication date: April 29, 2010
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Seiichiro Murase, Yukari Jo, Jun Tsukamoto, Junji Mata
  • Publication number: 20100006154
    Abstract: A photovoltaic device with high photoelectric conversion efficiency includes an electron donating organic material for photovoltaic devices containing a conjugated polymer represented by formula (1): wherein R1 to R10 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an alkoxy group and an aryl group; R11 and R12 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group and halogen; W, X, Y and Z may be the same or different from each other and are each selected from the group consisting of a single bond, an arylene group, a heteroarylene group, an ethenylene group, and an ethynylene group; m is 0 or 1; n is within a range of 1 to 1000.
    Type: Application
    Filed: October 4, 2007
    Publication date: January 14, 2010
    Inventors: Daisuke Kitazawa, Jun Tsukamoto, Yukari Jo