Patents by Inventor Noriko Yasukawa
Noriko Yasukawa 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: 9673405Abstract: An organic electroluminescent device containing: a six-coordinate, ortho-metalated iridium complex represented by the formula (I): wherein V represents a trivalent linking group and is bound to L1 to L3 through covalent bonds; each of L1 to L3 is represented by the formula (II) and R1 represents a substituted aryl group having seven or more carbon atoms.Type: GrantFiled: September 19, 2011Date of Patent: June 6, 2017Assignee: KONICA MINOLTA HOLDINGS, INC.Inventors: Noriko Yasukawa, Dai Ikemizu, Tomohiro Oshiyama, Masato Nishizeki, Tatsuo Tanaka
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Patent number: 9666818Abstract: A tandem-type organic photoelectric conversion element has at least a first electrode, a second electrode, and a plurality of bulk heterojunction layers each comprising a p-type organic semiconductor material and an n-type organic semiconductor material. The tandem-type organic photoelectric conversion element and a solar battery are characterized in that when the absorption wavelengths of the bulk heterojunction layers are such that a second bulk heterojunction layer absorbs up to a longer wavelength than a first bulk heterojunction layer, the LUMO energy level (LUMO(n1)) of the film of the n-type semiconductor in the first bulk heterojunction layer and the LUMO energy level (LUMO(n2)) of the film of the n-type semiconductor in the second bulk heterojunction layer satisfy the following equation (1): 0.4 eV?LUMO(n1)?LUMO(n2)?0.1 eV??(1).Type: GrantFiled: September 8, 2010Date of Patent: May 30, 2017Assignee: KONICA MINOLTA HOLDINGS, INC.Inventors: Yasushi Okubo, Noriko Yasukawa, Hiroaki Itoh, Takamune Hattori
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Patent number: 9379337Abstract: This invention provides an organic EL element, which can control luminescence wavelength, exhibits high luminescence efficiency, and has a prolonged emission life, and a lighting equipment and a display device. They can be realized by an organic electroluminescent element material characterized by a metal complex having a structure represented by the following general formula (A) as a partial structure.Type: GrantFiled: June 24, 2015Date of Patent: June 28, 2016Assignee: KONICA MINOLTA, INC.Inventors: Tomohiro Oshiyama, Eisaku Katoh, Noriko Yasukawa
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Publication number: 20150295191Abstract: This invention provides an organic EL element, which can control luminescence wavelength, exhibits high luminescence efficiency, and has a prolonged emission life, and a lighting equipment and a display device. They can be realized by an organic electroluminescent element material characterized by a metal complex having a structure represented by the following general formula (A) as a partial structure.Type: ApplicationFiled: June 24, 2015Publication date: October 15, 2015Inventors: Tomohiro OSHIYAMA, Eisaku KATOH, Noriko YASUKAWA
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Patent number: 9099659Abstract: This invention provides an organic EL element, which can control luminescence wavelength, exhibits high luminescence efficiency, and has a prolonged emission life, and a lighting equipment and a display device. They can be realized by an organic electroluminescent element material characterized by a metal complex having a structure represented by the following general formula (A) as a partial structure.Type: GrantFiled: August 13, 2013Date of Patent: August 4, 2015Assignee: KONICA MINOLTA, INC.Inventors: Tomohiro Oshiyama, Eisaku Katoh, Noriko Yasukawa
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Patent number: 8951650Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1?Y1??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:Type: GrantFiled: June 22, 2012Date of Patent: February 10, 2015Assignee: Konica Minolta Holdings, Inc.Inventors: Noriko Yasukawa, Hiroshi Kita, Eisaku Katoh, Tatsuo Tanaka, Shinya Otsu, Rie Katakura, Hidekane Ozeki, Hideo Taka
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Patent number: 8790793Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1-Y1??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other.Type: GrantFiled: May 8, 2009Date of Patent: July 29, 2014Assignee: Konica Minolta Holdings, Inc.Inventors: Noriko Yasukawa, Hiroshi Kita, Eisaku Katoh, Tatsuo Tanaka, Shinya Otsu, Rie Katakura, Hidekane Ozeki, Hideo Taka
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Patent number: 8778507Abstract: Disclosed is an organic electroluminescent (EL) device having high emission luminance and high emission efficiency. Particularly disclosed are a blue-light emitting organic EL device, which is high in emission luminance, color purity, emission efficiency and durability, a display and an illuminating device each employing the organic EL device. The organic El device is characterized in that it comprises a light emission layer containing two or more kinds of host compounds and at least one dopant, wherein at least one of the two or more kinds of host compounds has an excited triplet energy of not less than 2.7 eV, and the dopant is a phosphorescent compound.Type: GrantFiled: April 6, 2006Date of Patent: July 15, 2014Assignee: Konica Minolta Holdings, Inc.Inventors: Junko Tamura, Hiroshi Kita, Eisaku Katoh, Noriko Yasukawa
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Patent number: 8778509Abstract: An organic electroluminescence element comprising at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises a metal complex having a partial structure represented by Formula (1):Type: GrantFiled: August 28, 2006Date of Patent: July 15, 2014Assignee: Konica Minolta Holdings, Inc.Inventors: Noriko Yasukawa, Eisaku Katoh, Tomohiro Oshiyama
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Publication number: 20130342102Abstract: An organic electroluminescent element includes constituent layers including at least one light-emitting layer. At least one layer of the constituent layers includes a hexa-coordinated ortho-metalated iridium complex represented by the following general formula (1) In the general formula (1), R1 represents an alkyl group; the total carbon number of (R1)k on the ring A is five or less; R2 and R3 each represents a substituent group; n represents an integer from 1 to 3; k represents an integer from 1 to 3; j and m each represents an integer from 0 to 4; and L represents a monoanionic bidentate ligand having coordinate covalent bonds to Ir.Type: ApplicationFiled: June 17, 2013Publication date: December 26, 2013Inventors: Yutaro HAKOI, Noriko YASUKAWA
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Publication number: 20130338362Abstract: This invention provides an organic EL element, which can control luminescence wavelength, exhibits high luminescence efficiency, and has a prolonged emission life, and a lighting equipment and a display device. They can be realized by an organic electroluminescent element material characterized by a metal complex having a structure represented by the following general formula (A) as a partial structure.Type: ApplicationFiled: August 13, 2013Publication date: December 19, 2013Applicant: Konica Minolta, Inc.Inventors: Tomohiro OSHIYAMA, Eisaku KATOH, Noriko YASUKAWA
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Patent number: 8475938Abstract: Disclosed is an organic EL device element having high external quantum efficiency and long life time. A lighting device and a display device each using the organic EL device element are also disclosed. The organic EL element comprises plural organic compound layers including a light-emitting layer and at least one hole transport layer, interposed between an anode and a cathode, and a phosphorescent light-emitting compound contained in the light-emitting layer emits light. The organic EL device is characterized in that at least one hole-transport layer contains two or more polymerizable compounds represented by general Formula (1) or two or more polymer compounds having a structural unit derived from a compound. In the Formula (1) L1 represents a divalent bonding group, Ar1 through Ar4 represent an aromatic group, provided that at least one of Ar1 through Ar4 represents a polymerizable group as a substituent.Type: GrantFiled: April 7, 2009Date of Patent: July 2, 2013Assignee: Konica Minolta Holdings, Inc.Inventors: Noriko Yasukawa, Rie Katakura, Hideo Taka
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Publication number: 20120326601Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1?Y1??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:Type: ApplicationFiled: June 22, 2012Publication date: December 27, 2012Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: NORIKO YASUKAWA, HIROSHI KITA, EISAKU KATOH, TATSUO TANAKA, SHINYA OTSU, RIE KATAKURA, HIDEKANE OZEKI, HIDEO TAKA
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Publication number: 20120261654Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1-Y1??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:Type: ApplicationFiled: June 22, 2012Publication date: October 18, 2012Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: NORIKO YASUKAWA, HIROSHI KITA, EISAKU KATOH, TATSUO TANAKA, SHINYA OTSU, RIE KATAKURA, HIDEKANE OZEKI, HIDEO TAKA
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Publication number: 20120199186Abstract: A tandem-type organic photoelectric conversion element has at least a first electrode, a second electrode, and a plurality of bulk heterojunction layers each comprising a p-type organic semiconductor material and an n-type organic semiconductor material. The tandem-type organic photoelectric conversion element and a solar battery are characterized in that when the absorption wavelengths of the bulk heterojunction layers are such that a second bulk heterojunction layer absorbs up to a longer wavelength than a first bulk heterojunction layer, the LUMO energy level (LUMO(n1)) of the film of the n-type semiconductor in the first bulk heterojunction layer and the LUMO energy level (LUMO(n2)) of the film of the n-type semiconductor in the second bulk heterojunction layer satisfy the following equation (1): 0.4 eV?LUMO(n1)?LUMO(n2)?0.1 eV . . .Type: ApplicationFiled: September 8, 2010Publication date: August 9, 2012Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Yasushi Okubo, Noriko Yasukawa, Hiroaki Itoh, Takamune Hattori
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Patent number: 8133597Abstract: Disclosed is an organic EL device having high luminous efficiency and long emission life, wherein emission wavelength is controlled. Also disclosed are an illuminating device and a display. Specifically disclosed is an organic electroluminescent device containing at least a light-emitting layer sandwiched between an anode and a cathode. This organic electroluminescent device is characterized in that the light-emitting layer contains a metal complex having a partial structure represented by the following general formula (1).Type: GrantFiled: August 18, 2006Date of Patent: March 13, 2012Assignee: Konica Minolta Holdings, Inc.Inventors: Noriko Yasukawa, Eisaku Katoh, Tomohiro Oshiyama, Shinya Otsu
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Publication number: 20120018714Abstract: An organic electroluminescent device containing: a six-coordinate, ortho-metalated iridium complex represented by the formula (I): wherein V represents a trivalent linking group and is bound to L1 to L3 through covalent bonds; each of L1 to L3 is represented by the formula (II); X5 and Ir form a coordinate bond; X7 and Ir form a covalent bond; each of X1 to X5 represents a group of elements composing a nitrogen-containing heterocycle, selected from carbon atom or nitrogen atom; at least one of X4 and X5 represents a nitrogen atom; each of X6 to X11 represents a group of element composing an aromatic five-membered ring or aromatic six-membered ring, and is selected from carbon atom or nitrogen atom; when X6 to X11 form an aromatic five-membered ring, X11 merely represents a bond; and R1 represents a substituted aryl group having seven or more carbon atoms.Type: ApplicationFiled: September 19, 2011Publication date: January 26, 2012Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Noriko YASUKAWA, Dai IKEMIZU, Tomohiro OSHIYAMA, Masato NISHIZEKI, Tatsuo TANAKA
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Publication number: 20110017988Abstract: Disclosed is an organic EL device element having high external quantum efficiency and long life time. A lighting device and a display device each using the organic EL device element are also disclosed. The organic EL element comprises plural organic compound layers including a light-emitting layer and at least one hole transport layer, interposed between an anode and a cathode, and a phosphorescent light-emitting compound contained in the light-emitting layer emits light. The organic EL device is characterized in that at least one hole-transport layer contains two or more polymerizable compounds represented by general Formula (1) or two or more polymer compounds having a structural unit derived from a compound. In the Formula (1) L1 represents a divalent bonding group, Ar1 through Ar4 represent an aromatic group, provided that at least one of Ar1 through Ar4 represents a polymerizable group as a substituent.Type: ApplicationFiled: April 7, 2009Publication date: January 27, 2011Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Noriko Yasukawa, Rie Katakura, Hideo Taka
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Publication number: 20090284138Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1-Y1 ??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:Type: ApplicationFiled: May 8, 2009Publication date: November 19, 2009Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Noriko YASUKAWA, Hiroshi KITA, Eisaku KATOH, Tatsuo TANAKA, Shinya OTSU, Rie KATAKURA, Hidekane OZEKI, Hideo TAKA
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Publication number: 20090236974Abstract: Disclosed is an organic electroluminescent (EL) device having high emission luminance and high emission efficiency. Particularly disclosed are a blue-light emitting organic EL device, which is high in emission luminance, color purity, emission efficiency and durability, a display and an illuminating device each employing the organic EL device. The organic El device is characterized in that it comprises a light emission layer containing two or more kinds of host compounds and at least one dopant, wherein at least one of the two or more kinds of host compounds has an excited triplet energy of not less than 2.7 eV, and the dopant is a phosphorescent compound.Type: ApplicationFiled: April 6, 2006Publication date: September 24, 2009Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Junko Tamaru, Hiroshi Kita, Eisaku Katoh, Noriko Yasukawa