Patents by Inventor Itaru Osaka
Itaru Osaka 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).
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Patent number: 9312491Abstract: A photoelectric conversion element has a structure where a hole transport layer, a photoelectric conversion layer, and an electron transport layer are held between a first electrode and a second electrode. The photoelectric conversion layer is a bulk heterojunction layer, and fullerene or a fullerene derivative is used as an n-type organic semiconductor. As a p-type organic semiconductor, a polymer represented by the following Expression is used. In the Expression, R1, R2, R3, and R4 each independently represent any one of a branched alkyl group, a linear alkyl group, an alkyl ester group, a carboxy alkyl group, and an alkoxy group. Independently, X is any one of S, O, and N.Type: GrantFiled: September 3, 2013Date of Patent: April 12, 2016Assignees: JX NIPPON OIL & ENERGY CORPORATION, NATIONAL UNIVERSITY CORPORATION OF HIROSHIMA UNIVERSITYInventors: Seunghun Eu, Tsuyoshi Asano, Itaru Osaka, Kazuo Takimiya
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Patent number: 9209409Abstract: A naphthobisthiadiazole derivative is represented by Formula 1. In Formula 1, Z is selected from a hydrogen atom, a boronic acid group, a boronic acid ester group, a trifluoroborate salt group and a triolborate salt group, and at least one Z is a boronic acid group, a boronic acid ester group, a trifluoroborate salt group or a triolborate salt group. The naphthobisthiadiazole derivative is an organoboron compound, and can be converted to various compounds by a Suzuki-Miyaura coupling reaction; thus, is applicable as a precursor of complex compounds. Using the naphthobisthiadiazole derivative, research, development, and practical applications of low molecular weight compounds and high-molecular compounds useful for various organic semiconductor materials and the like can be ensured.Type: GrantFiled: February 27, 2013Date of Patent: December 8, 2015Assignees: National University of Corporation Hiroshima University, Sankyo Kasei Co., Ltd.Inventors: Kazuo Takimiya, Itaru Osaka, Kazuaki Kawashima
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Patent number: 9018398Abstract: An intermediate for an acenedichalcogenophene derivative is expressed by formula (1) or formula (2). In the formulae (1) and (2), Ar1 represents any one ring of a benzene ring, a naphthalene ring, or an anthracene ring having at least one of hydrogen thereof is substituted with a boronic acid group or a boronate ester group; Y represents an oxygen atom, a sulfur atom, or a selenium atom; and Z represents a substituent group. This intermediate for the acenedichalcogenophene derivative is capable of easily deprotecting the boronic acid group or the boronate ester group and allowing a substitution with a desired functional group, such that a desired synthesis of acenedichalcogenophene derivative, and further a desired synthesis of oligomers and polymers using this obtained acenedichalcogenophene derivative can be achieved.Type: GrantFiled: December 12, 2012Date of Patent: April 28, 2015Assignee: National University of Corporation Hiroshima UniversityInventors: Kazuo Takimiya, Itaru Osaka
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Publication number: 20150112081Abstract: A naphthobisthiadiazole derivative is represented by Formula 1. In Formula 1, Z is selected from a hydrogen atom, a boronic acid group, a boronic acid ester group, a trifluoroborate salt group and a triolborate salt group, and at least one Z is a boronic acid group, a boronic acid ester group, a trifluoroborate salt group or a triolborate salt group. The naphthobisthiadiazole derivative is an organoboron compound, and can be converted to various compounds by a Suzuki-Miyaura coupling reaction; thus, is applicable as a precursor of complex compounds. Using the naphthobisthiadiazole derivative, research, development, and practical applications of low molecular weight compounds and high-molecular compounds useful for various organic semiconductor materials and the like can be ensured.Type: ApplicationFiled: February 27, 2013Publication date: April 23, 2015Inventors: Kazuo Takimiya, Itaru Osaka, Kazuaki Kawashima
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Publication number: 20150011780Abstract: An intermediate for an acenedichalcogenophene derivative is expressed by formula (1) or formula (2). In the formulae (1) and (2), Ar1 represents any one ring of a benzene ring, a naphthalene ring, or an anthracene ring having at least one of hydrogen thereof is substituted with a boronic acid group or a boronate ester group; Y represents an oxygen atom, a sulfur atom, or a selenium atom; and Z represents a substituent group. This intermediate for the acenedichalcogenophene derivative is capable of easily deprotecting the boronic acid group or the boronate ester group and allowing a substitution with a desired functional group, such that a desired synthesis of acenedichalcogenophene derivative, and further a desired synthesis of oligomers and polymers using this obtained acenedichalcogenophene derivative can be achieved.Type: ApplicationFiled: December 12, 2012Publication date: January 8, 2015Inventors: Kazuo Takimiya, Itaru Osaka
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Patent number: 8921836Abstract: An object of the present invention is to provide a polymer compound providing high charge mobility. The polymer compound of the present invention has a repeating unit represented by the formula (1): wherein Ar1 and Ar2 are each an aromatic hydrocarbon ring, a heterocycle, or a fused ring of an aromatic hydrocarbon ring and a heterocycle; and R1, R2, R3 and R4 each represent a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, a substituted silyl group, an unsubstituted or substituted carboxyl group, a monovalent heterocyclic group, a cyano group or a fluorine atom.Type: GrantFiled: December 22, 2010Date of Patent: December 30, 2014Assignees: Sumitomo Chemical Company, Limited, National University of Corporation Hiroshima UniversityInventors: Kazuo Takimiya, Itaru Osaka, Kenji Kohiro, Kenichiro Ohya, Kunihito Miyake
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Publication number: 20140163188Abstract: Provided is an organic semiconductor material with good crystallinity and an excellent carrier mobility. The organic semiconductor material comprises a backbone represented by formula 1. In formula 1, R1 is hydrogen, an alkyl group, an alkylcarbonyl group, an alkoxy group, or an alkoxycarbonyl group, m is an integer of 1 or more, Ar is a monocyclic or condensed polycyclic heteroaromatic ring optionally comprising a substituent, and when a plurality of heteroaromatic rings are linked, the same or different heteroaromatic rings are optionally linked.Type: ApplicationFiled: July 25, 2012Publication date: June 12, 2014Applicant: National University of Corporation Hiroshima UniveInventors: Itaru Osaka, Kazuo Takimiya
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Publication number: 20140000716Abstract: A photoelectric conversion element has a structure where a hole transport layer, a photoelectric conversion layer, and an electron transport layer are held between a first electrode and a second electrode. The photoelectric conversion layer is a bulk heterojunction layer, and fullerene or a fullerene derivative is used as an n-type organic semiconductor. As a p-type organic semiconductor, a polymer represented by the following Expression is used. In the Expression, R1, R2, R3, and R4 each independently represent any one of a branched alkyl group, a linear alkyl group, an alkyl ester group, a carboxy alkyl group, and an alkoxy group. Independently, X is any one of S, O, and N.Type: ApplicationFiled: September 3, 2013Publication date: January 2, 2014Applicants: National University Corporation of Hiroshima University, JX Nippon Oil & Energy CorporationInventors: Seunghun EU, Tsuyoshi Asano, Itaru Osaka, Kazuo Takimiya
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Publication number: 20120305899Abstract: An object of the present invention is to provide a polymer compound providing high charge mobility. The polymer compound of the present invention has a repeating unit represented by the formula (1): wherein Ar1 and Ar2 are each an aromatic hydrocarbon ring, a heterocycle, or a fused ring of an aromatic hydrocarbon ring and a heterocycle; and R1, R2, R3 and R4 each represent a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, a substituted silyl group, an unsubstituted or substituted carboxyl group, a monovalent heterocyclic group, a cyano group or a fluorine atom.Type: ApplicationFiled: December 22, 2010Publication date: December 6, 2012Applicants: NATIONAL UNIVERSITY OF CORPORATION HIROSHIMA UNIVERSITY, SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kazuo Taki, Itaru Osaka, Kenji Kohiro, Kenichiro Ohya, Kunihito Miyake
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Patent number: 8288508Abstract: Universal Grignard Metathesis (GRIM) reactions which provide access to conjugated polymers by GRIM methods. A method comprising: providing an unsaturated ring compound comprising at least two halogen ring substituents, providing an organomagnesium reagent comprising an organomagnesium component and a metal activation agent, combining the unsaturated ring compound with the reagent to form a second compound by metal-halogen exchange, wherein the metal activation agent activates the metal-halogen exchange, coupling the second compound to itself in an oligomerization or polymerization reaction. Metal activation agent can be lithium chloride. The process is commercially attractive and can be executed in good yields. Polyfluorenes, polypyrroles, and polythiophenes can be prepared for use in OLED, PLED, photovoltaic, transistor, antistatic coatings, and sensor applications.Type: GrantFiled: August 31, 2007Date of Patent: October 16, 2012Assignee: Carnegie Mellon UniversityInventors: Richard D. McCullough, Mihaela C. Iovu, Itaru Osaka
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Patent number: 8147987Abstract: An organic electroluminescent element comprises: a pair of electrodes; and one or more organic compound layers at least one of which is a light-emitting layer, the one or more organic compound layers being provided between the pair of electrodes, wherein at least one of the one or more organic compound layers comprises a compound represented by general formula (Z): wherein R31 and R32 each represents a hydrogen atom or a substituent, R3A represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom, X31 to X38 each represents a substituted or unsubstituted carbon atom or a nitrogen atom, and Y31 to Y33 each represents a nitrogen atom or C—R3B (wherein R3B represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom).Type: GrantFiled: February 23, 2007Date of Patent: April 3, 2012Assignee: Fujifilm CorporationInventors: Itaru Osaka, Tatsuya Igarashi, Toshihiko Ise, Eiji Fukuzaki, Satoshi Sano
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Patent number: 8022395Abstract: A photoelectric conversion layer comprising a compound represented by the following formula (I): wherein V1, V2, V3 and V4 each independently represents a hydrogen atom or a substituent.Type: GrantFiled: June 2, 2006Date of Patent: September 20, 2011Assignee: FUJIFILM CorporationInventors: Takanori Hioki, Itaru Osaka, Daisuke Yokoyama
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Patent number: 7547912Abstract: A photoelectric conversion layer comprising a compound represented by the following formula (1): wherein L represents a divalent or polyvalent connecting group; n represents an integer of 2 or more; and A is a chemical structure represented by the following formula (2): wherein X1 to X8 each independently represents a substituted or unsubstituted carbon atom or a nitrogen atom.Type: GrantFiled: August 23, 2006Date of Patent: June 16, 2009Assignee: FUJIFILM CorporationInventors: Itaru Osaka, Masayuki Hayashi
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Publication number: 20080146754Abstract: Universal Grignard Metathesis (GRIM) reactions which provide access to conjugated polymers by GRIM methods. A method comprising: providing an unsaturated ring compound comprising at least two halogen ring substituents, providing an organomagnesium reagent comprising an organomagnesium component and a metal activation agent, combining the unsaturated ring compound with the reagent to form a second compound by metal-halogen exchange, wherein the metal activation agent activates the metal-halogen exchange, coupling the second compound to itself in an oligomerization or polymerization reaction. Metal activation agent can be lithium chloride. The process is commercially attractive and can be executed in good yields. Polyfluorenes, polypyrroles, and polythiophenes can be prepared for use in OLED, PLED, photovoltaic, transistor, antistatic coatings, and sensor applications.Type: ApplicationFiled: August 31, 2007Publication date: June 19, 2008Inventors: Richard D. MCCULLOUGH, Mihaela C. Iovu, Itaru Osaka
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Publication number: 20070202357Abstract: An organic electroluminescent element comprises: a pair of electrodes; and one or more organic compound layers at least one of which is a light-emitting layer, the one or more organic compound layers being provided between the pair of electrodes, wherein at least one of the one or more organic compound layers comprises a compound represented by general formula (Z): wherein R31 and R32 each represents a hydrogen atom or a substituent, R3A represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom, X31 to X38 each represents a substituted or unsubstituted carbon atom or a nitrogen atom, and Y31 to Y33 each represents a nitrogen atom or C—R3B (wherein R3B represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom).Type: ApplicationFiled: February 23, 2007Publication date: August 30, 2007Applicant: FUJIFILM CorporationInventors: Itaru Osaka, Tatsuya Igarashi, Toshihiko Ise, Eiji Fukuzaki, Satoshi Sano
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Publication number: 20070052051Abstract: A photoelectric conversion layer comprising a compound represented by the following formula (1): wherein R1 to R10 each independently represents a hydrogen atom or a substituent; L represents a monovalent group or a divalent or polyvalent connecting group; m is 0 or 1; and n represents an integer of from 1 to 4.Type: ApplicationFiled: August 23, 2006Publication date: March 8, 2007Inventors: Itaru Osaka, Masayuki Hayashi
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Publication number: 20070044829Abstract: A photoelectric conversion layer comprising a compound represented by the following formula (1): wherein L represents a divalent or polyvalent connecting group; n represents an integer of 2 or more; and A is a chemical structure represented by the following formula (2): wherein X1 to X8 each independently represents a substituted or unsubstituted carbon atom or a nitrogen atom.Type: ApplicationFiled: August 23, 2006Publication date: March 1, 2007Inventors: Itaru Osaka, Masayuki Hayashi
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Publication number: 20060278869Abstract: A photoelectric conversion layer comprising a compound represented by the following formula (I): wherein V1, V2, V3 and V4 each independently represents a hydrogen atom or a substituent.Type: ApplicationFiled: June 2, 2006Publication date: December 14, 2006Inventors: Takanori Hioki, Itaru Osaka, Daisuke Yokoyama
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Publication number: 20060273362Abstract: A photoelectric conversion layer comprising a compound represented by the following formula (1): wherein R11 to R14 each independently represents a hydrogen atom or a substituent; X11 and X12 each independently represents a substituted or unsubstituted carbon atom, a substituted or unsubstituted nitrogen atom, an oxygen atom, or a sulfur atom; and Y11 to Y14 each independently represents a substituted or unsubstituted carbon atom, a substituted or unsubstituted nitrogen atom, an oxygen atom, or a sulfur atom.Type: ApplicationFiled: June 5, 2006Publication date: December 7, 2006Inventors: Itaru Osaka, Takanori Hioki, Daisuke Yokoyama