Patents by Inventor Yoshihito Kunugi

Yoshihito Kunugi 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: 10043979
    Abstract: An organic semiconductor material having a chrysene skeleton by limiting a compound having particular transistor performance. The chrysene compound is represented by the following chemical formula: In the chemical formula, R2 and R8 are not the same functional group, and independently includes at least one of a hydrogen atom, a substituted or non-substituted aryl group, a substituted or non-substituted heterocyclic group and a substituted or non-substituted alkyl group.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: August 7, 2018
    Assignee: USHIO CHEMIX CORPORATION
    Inventors: Yoshihito Kunugi, Kazuo Okamoto, Hiroyuki Otsuki
  • Publication number: 20150129807
    Abstract: An organic semiconductor material having a chrysene skeleton by limiting a compound having particular transistor performance. The chrysene compound is represented by the following chemical formula: In the chemical formula, R2 and R8 are not the same functional group, and independently includes at least one of a hydrogen atom, a substituted or non-substituted aryl group, a substituted or non-substituted heterocyclic group and a substituted or non-substituted alkyl group.
    Type: Application
    Filed: August 28, 2014
    Publication date: May 14, 2015
    Applicant: USHIO CHEMIX KABUSHIKI KAISHA
    Inventors: Yoshihito KUNUGI, Kazuo OKAMOTO, Hiroyuki OTSUKI
  • Patent number: 8088995
    Abstract: An ionic liquid which is high in ionic conductivity and high in safety without an anxiety of ignition or the like and an electrolyte composition containing the same are provided. The present invention concerns an electrolyte composition for photoelectric conversion device, containing a quaternary phosphonium salt ionic liquid represented by the following formula (1). A viscosity at 25° C. of this ionic liquid is preferably not more than 200 mPa·sec. In the formula (1), it is preferable that the alkoxyalkyl group is a methoxymethyl group, and all of the alkyl groups are an ethyl group. In the formula, R1 represents a linear alkyl group or a branched alkyl group each having from 1 to 6 carbon atoms; R2 represents a methyl group or an ethyl group; n represents an integer of from 1 to 6; and X represents N(SO2CF3)2 or N(CN)2.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: January 3, 2012
    Assignees: Tokai University Educational System, Nippon Chemical Industrial Co., Ltd.
    Inventors: Yoshihito Kunugi, Katsuhiko Tsunashima
  • Patent number: 8084624
    Abstract: The object of the present invention to provide an organic semiconductor device comprising an organic semiconductor material satisfying both the requirement of high electron field-effect mobility and high on/off current ratio. The present invention provides a novel condensed polycyclic aromatic compound satisfying both the high electron field-erffect mobility and high on/off current ratio required for organic semiconductor materials.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: December 27, 2011
    Assignee: National University of Corporation Hiroshima University
    Inventors: Kazuo Takimiya, Yoshihito Kunugi, Yasushi Konda
  • Publication number: 20110083744
    Abstract: An ionic liquid which is high in ionic conductivity and high in safety without an anxiety of ignition or the like and an electrolyte composition containing the same are provided. The present invention concerns an electrolyte composition for photoelectric conversion device, containing a quaternary phosphonium salt ionic liquid represented by the following formula (1). A viscosity at 25° C. of this ionic liquid is preferably not more than 200 mPa·sec. In the formula (1), it is preferable that the alkoxyalkyl group is a methoxymethyl group, and all of the alkyl groups are an ethyl group. In the formula, R1 represents a linear alkyl group or a branched alkyl group each having from 1 to 6 carbon atoms; R2 represents a methyl group or an ethyl group; n represents an integer of from 1 to 6; and X represents N(SO2CF3)2 or N(CN)2.
    Type: Application
    Filed: August 22, 2008
    Publication date: April 14, 2011
    Applicants: TOKAI UNIVERSITY EDUCATIONAL SYSTEM, NIPPON CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: Yoshihito KUNUGI, Katsuhiko TSUNASHIMA
  • Publication number: 20110024731
    Abstract: The object of the present invention to provide an organic semiconductor device comprising an organic semiconductor material satisfying both the requirement of high electron field-effect mobility and high on/off current ratio. The present invention provides a novel condensed polycyclic aromatic compound satisfying both the high electron field-effect mobility and high on/off current ratio required for organic semiconductor materials.
    Type: Application
    Filed: October 5, 2010
    Publication date: February 3, 2011
    Applicant: National University of Corp. Hiroshima University
    Inventors: Kazuo TAKIMIYA, Yoshihito Kunugi, Yasushi Konda
  • Patent number: 7834198
    Abstract: The object of the present invention to provide an organic semiconductor device comprising an organic semiconductor material satisfying both the requirement of high electron field-effect mobility and high on/off current ratio. The present invention provides a novel condensed polycyclic aromatic compound satisfying both the high electron field-effect mobility and high on/off current ratio required for organic semiconductor materials.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 16, 2010
    Assignee: National University of Corporation Hiroshima University
    Inventors: Kazuo Takimiya, Yoshihito Kunugi, Yasushi Konda
  • Publication number: 20090084443
    Abstract: An ionic liquid which is high in ionic conductivity and high in safety without an anxiety of ignition or the like and an electrolyte composition containing the same are provided. The present invention concerns an electrolyte composition for photoelectric conversion device, containing a quaternary phosphonium salt ionic liquid represented by the following formula (1). A viscosity at 25° C. of this ionic liquid is preferably not more than 200 mPa·sec. In the formula (1), it is preferable that the alkoxyalkyl group is a methoxymethyl group, and all of the alkyl groups are an ethyl group. In the formula, R1 represents a linear alkyl group or a branched alkyl group each having from 1 to 6 carbon atoms; R2 represents a methyl group or an ethyl group; n represents an integer of from 1 to 6; and X represents N(SO2CF3)2 or N(CN)2.
    Type: Application
    Filed: September 16, 2008
    Publication date: April 2, 2009
    Applicants: TOKAI UNIVERSITY EDUCATIONAL SYSTEM, NIPPON CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: Yoshihito KUNUGI, Katsuhiko TSUNASHIMA
  • Publication number: 20090065058
    Abstract: An ionic liquid which is high in ionic conductivity and high in safety without an anxiety of ignition or the like and an electrolyte composition containing the same are provided. The present invention concerns an electrolyte composition for photoelectric conversion device, containing a quaternary phosphonium salt ionic liquid represented by the following formula (1). A viscosity at 25° C. of this ionic liquid is preferably not more than 200 mPa·sec. In the formula (1), it is preferable that the alkoxyalkyl group is a methoxymethyl group, and all of the alkyl groups are an ethyl group. In the formula, R1 represents a linear alkyl group or a branched alkyl group each having from 1 to 6 carbon atoms; R2 represents a methyl group or an ethyl group; n represents an integer of from 1 to 6; and X represents N(SO2CF3)2 or N(CN)2.
    Type: Application
    Filed: November 12, 2008
    Publication date: March 12, 2009
    Applicants: TOKAI UNIVERSITY EDUCATIONAL SYSTEM, NIPPON CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: Yoshihito KUNUGI, Katsuhiko TSUNASHIMA
  • Publication number: 20090001357
    Abstract: The object of the present invention to provide an organic semiconductor device comprising an organic semiconductor material satisfying both the requirement of high electron field-effect mobility and high on/off current ratio. The present invention provides a novel condensed polycyclic aromatic compound satisfying both the high electron field-effect mobility and high on/off current ratio required for organic semiconductor materials.
    Type: Application
    Filed: January 18, 2006
    Publication date: January 1, 2009
    Applicant: National University of Corp. Hiroshima University
    Inventors: Kazuo Takimiya, Yoshihito Kunugi, Yasushi Konda
  • Patent number: 6578406
    Abstract: A sandwich device was prepared by electrodeposition of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin coating the stacked platinum compound, tetrakis(p-decylphenylisocyano)platinum tetranitroplatinate, from toluene onto the oligomer layer, and then coating the platinum complex with aluminum by vapor deposition. This device showed rectification of current and gave electroluminescence. The electroluminescence spectrum (&lgr;max=545 nm) corresponded to the photoluminescence spectrum of the platinum complex. Exposure of the device to acetone vapor caused the electroemission to shift to 575 nm. Exposure to toluene vapor caused a return to the original spectrum. These results demonstrate a new type of sensor that reports the arrival of organic vapors with an electroluminescent signal.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: June 17, 2003
    Assignee: Regents of the University of Minnesota
    Inventors: Yoshihito Kunugi, Kent R. Mann, Larry L. Miller, Christopher L. Exstrom
  • Patent number: 6417923
    Abstract: A sandwich-type, organic p-n junction photodiode is prepared by electrode-position of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin-coating the stacked platinum compound, bis(cyanide)-bis(para-dodecylphenylisocyanide)platinum (II), from chloroform onto the oligomer layer, and then coating the platinum complex with a micro-array of aluminum electrodes by vapor deposition. This device shows rectification of current and gives a measurable photocurrent. The photocurrent action spectrum follows the absorption spectrum of the platinum complex; changes in the action spectrum with layer thickness point to a p-n junction formed at the interface of the molecular layers as the site of rectification. Exposure of the device to acetone vapor causes the action spectrum to shift dramatically to longer wavelength. Exposure to chloroform vapor causes a return to the original spectrum.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: July 9, 2002
    Assignee: Regents of the University of Minnesota
    Inventors: Yoshihito Kunugi, Kent R. Mann, Larry L. Miller, Marie K. Pomije
  • Publication number: 20020042174
    Abstract: A sandwich device was prepared by electrodeposition of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin coating the stacked platinum compound, tetrakis(p-decylphenylisocyano)platinum tetranitroplatinate, from toluene onto the oligomer layer, and then coating the platinum complex with aluminum by vapor deposition. This device showed rectification of current and gave electroluminescence. The electroluminescence spectrum (&lgr;max=545 nm) corresponded to the photoluminescence spectrum of the platinum complex. Exposure of the device to acetone vapor caused the electroemission to shift to 575 nm. Exposure to toluene vapor caused a return to the original spectrum. These results demonstrate a new type of sensor that reports the arrival of organic vapors with an electroluminescent signal.
    Type: Application
    Filed: November 5, 2001
    Publication date: April 11, 2002
    Inventors: Yoshihito Kunugi, Kent R. Mann, Larry L. Miller, Christopher L. Exstrom
  • Patent number: 6338977
    Abstract: A sandwich device was prepared by electrodeposition of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin coating the stacked platinum compound, tetrakis(p-decylphenylisocyano)platinum tetranitroplatinate, from toluene onto the oligomer layer, and then coating the platinum complex with aluminum by vapor deposition. This device showed rectification of current and gave electroluminescence. The electroluminescence spectrum (&mgr;max=545 nm) corresponded to the photoluminescence spectrum of the platinum complex. Exposure of the device to acetone vapor caused the electroemission to shift to 575 nm. Exposure to toluene vapor caused a return to the original spectrum. These results demonstrate a new type of sensor that reports the arrival of organic vapors with an electroluminescent signal.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: January 15, 2002
    Assignee: Regents of the University of Minnesota
    Inventors: Yoshihito Kunugi, Kent R. Mann, Larry L. Miller, Christopher L. Exstrom
  • Patent number: 6160267
    Abstract: A sandwich device was prepared by electrodeposition of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin coating the stacked platinum compound, tetrakis(p-decylphenylisocyano)platinum tetranitroplatinate, from toluene onto the oligomer layer, and then coating the platinum complex with aluminum by vapor deposition. This device showed rectification of current and gave electroluminescence. The electroluminescence spectrum (.lambda..sub.max =545 nm) corresponded to the photoluminescence spectrum of the platinum complex. Exposure of the device to acetone vapor caused the electroemission to shift to 575 nm. Exposure to toluene vapor caused a return to the original spectrum. These results demonstrate a new type of sensor that reports the arrival of organic vapors with an electroluminescent signal.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: December 12, 2000
    Assignee: Regents of the University of Minnesota
    Inventors: Yoshihito Kunugi, Kent R. Mann, Larry L. Miller, Christopher L. Exstrom
  • Patent number: 6137118
    Abstract: A sandwich-type, organic p-n junction photodiode is prepared by electrode-position of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin-coating the stacked platinum compound, bis(cyanide)-bis(para-dodecylphenylisocyanide)platinum (II), from chloroform onto the oligomer layer, and then coating the platinum complex with a micro-array of aluminum electrodes by vapor deposition. This device shows rectification of current and gives a measurable photocurrent. The photocurrent action spectrum follows the absorption spectrum of the platinum complex; changes in the action spectrum with layer thickness point to a p-n junction formed at the interface of the molecular layers as the site of rectification. Exposure of the device to acetone vapor causes the action spectrum to shift dramatically to longer wavelength. Exposure to chloroform vapor causes a return to the original spectrum.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: October 24, 2000
    Assignee: Regents of the University of Minnesota
    Inventors: Yoshihito Kunugi, Kent R. Mann, Larry L. Miller, Marie K. Pomije