Patents by Inventor Rie Katakura
Rie Katakura 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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Publication number: 20220059790Abstract: Provided is a light emitting member that emits near-infrared light, containing a surface light source that emits at least red light and a wavelength conversion film that converts visible light of the surface light source into near-infrared light, wherein the light emitting member has a maximum emission wavelength in the wavelength range of 700 to 1500 nm.Type: ApplicationFiled: September 12, 2019Publication date: February 24, 2022Inventors: Mio WATANABE, Ryo NAKABAYASHI, Kenichi TABATA, Rie KATAKURA, Yasuo MIYATA
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Publication number: 20210291434Abstract: The present invention provides a three-dimensional model that contains an olefin-based polymer and can be easily processed, and a three-dimensional modeling material for obtaining the same. In addition, an object of the present invention is to provide a three-dimensional modeling material that contains an olefin-based polymer and can impart a function to a three-dimensional model itself. Furthermore, another object of the present invention is to provide a three-dimensional model production method using a three-dimensional modeling material. A three-dimensional modeling material that solves the above problems is a material for forming a three-dimensional model using thermal energy and contains an olefin-based polymer and an organometallic complex.Type: ApplicationFiled: July 8, 2019Publication date: September 23, 2021Applicant: Konica Minolta, Inc.Inventors: Masaharu SHIRAISHI, Takeshi KOJIMA, Kenji GOTO, Rie KATAKURA, Hiroshi KITA
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Patent number: 10774261Abstract: An organic electroluminescence element includes: an anode; a cathode; and a luminous layer. The luminous layer includes: a luminescent dopant having a reorganization energy of 0 eV to 0.7 eV in electron transition from a ground state (S0) to a lowest excited triplet state (T1); and a host compound having a reorganization energy of 0 eV to 0.3 eV in electron transfer reaction between a ground state (S0) and an anionic radical state (AR), and having a molecular weight within a range of 500 to 3000.Type: GrantFiled: December 6, 2013Date of Patent: September 15, 2020Assignee: KONICA MINOLTA, INC.Inventors: Tomohiro Oshiyama, Shinya Otsu, Rie Katakura, Satoru Inoue
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Patent number: 10002685Abstract: This invention addresses the problem of providing a charge-transporting thin film with small variations in properties due to disturbance and small variations in resistance over time during application of current. The invention further provides a charge-transporting thin film with a secondary effect of small variations over time and stable luminescent properties. The charge-transporting thin film of the present invention contains one or more types of functional organic compounds having chiral elements, and is characterized in that the total of the number of chiral elements per molecule in each type of the functional organic compounds summed over all types of the functional organic compounds is four or more.Type: GrantFiled: May 21, 2014Date of Patent: June 19, 2018Assignee: KONICA MINOLTA, INC.Inventors: Hiroshi Kita, Tatsuo Tanaka, Rie Katakura
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Patent number: 9991453Abstract: This invention addresses the problem of providing an electronic device, organic electroluminescent device, conductive film, organic thin-film solar cell, and dye-sensitized solar cell provided with a charge-transporting thin film that exhibits excellent stability. In the presence of external disturbances, the charge-transporting thin film exhibits little in the way of fluctuations, and the resistance of the charge-transporting thin film changes little over time as current is supplied. As one of the secondary effects thereof, the charge-transporting thin film results in little in the way of changes in emission characteristics over time.Type: GrantFiled: May 21, 2014Date of Patent: June 5, 2018Assignee: KONICA MINOLTA, INC.Inventors: Hiroshi Kita, Tatsuo Tanaka, Rie Katakura
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Patent number: 9960356Abstract: Provided are an organic electroluminescence device which has a high luminous efficiency, a low operating voltage and a long life and which is low in a voltage rise in operation and excellent in an ageing stability and has an aptitude in production by the wet process, and a lighting equipment and a display device which are prepared by using the same.Type: GrantFiled: May 21, 2013Date of Patent: May 1, 2018Assignee: KONICA MINOLTA, INC.Inventors: Mayuka Hikime, Osamu Ishige, Tomohiro Oshiyama, Rie Katakura
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Patent number: 9617255Abstract: Provided is an o organic electroluminescence element comprising an anode, a cathode and a plurality of composing layers including a light emitting layer sandwiched between the anode and the cathode, wherein an electron transport layer containing the compound represented by Formula (1) is included in the composing layers; the light emitting layer contains a phosphorescence emitting organic metal complex; and the cathode or one composing layer adjacent to the cathode contains a metal or a metal compound belonging to Group 1 or Group 2 of the periodic table of elements, provided that the metal exhibits a standard electrode potential larger than ?3 V vs.Type: GrantFiled: January 21, 2010Date of Patent: April 11, 2017Assignee: KONICA MINOLTA, INC.Inventors: Rie Katakura, Eisaku Katoh, Hideo Taka
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Patent number: 9331289Abstract: Disclosed are: an organic EL material which emits light having a short wavelength and has high luminous efficiency and long light emission life; an organic EL element which contains the organic EL material; and a lighting device and a display device, each of which comprises the organic EL element.Type: GrantFiled: April 8, 2011Date of Patent: May 3, 2016Assignee: KONICA MINOLTA HOLDINGS, INC.Inventors: Dai Ikemizu, Hiroshi Kita, Tomohiro Oshiyama, Shinya Otsu, Rie Katakura, Hidekane Ozeki
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Publication number: 20160079548Abstract: This invention addresses the problem of providing an electronic device, organic electroluminescent device, conductive film, organic thin-film solar cell, and dye-sensitized solar cell provided with a charge-transporting thin film that exhibits excellent stability. In the presence of external disturbances, the charge-transporting thin film exhibits little in the way of fluctuations, and the resistance of the charge-transporting thin film changes little over time as current is supplied. As one of the secondary effects thereof, the charge-transporting thin film results in little in the way of changes in emission characteristics over time.Type: ApplicationFiled: May 21, 2014Publication date: March 17, 2016Inventors: Hiroshi KITA, Tatsuo TANAKA, Rie KATAKURA
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Publication number: 20160071625Abstract: This invention addresses the problem of providing a charge-transporting thin film with small variations in properties due to disturbance and small variations in resistance over time during application of current. The invention further provides a charge-transporting thin film with a secondary effect of small variations over time and stable luminescent properties. The charge-transporting thin film of the present invention contains one or more types of functional organic compounds having chiral elements, and is characterized in that the total of the number of chiral elements per molecule in each type of the functional organic compounds summed over all types of the functional organic compounds is four or more.Type: ApplicationFiled: May 21, 2014Publication date: March 10, 2016Inventors: Hiroshi KITA, Tatsuo TANAKA, Rie KATAKURA
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Patent number: 9260658Abstract: Provided is an organic electroluminescence element containing an anode, a cathode and a plurality of organic layers including a light emitting layer sandwiched between the anode and the cathode, wherein at least one of the organic layers contains: a blue phosphorescence organic metal complex which is coordinated with a ligand having a structure represented by Formula (1); and a compound represented by Formula (H1), provided that Formula (H1) includes a structure represented by Formula (H2),Type: GrantFiled: August 15, 2012Date of Patent: February 16, 2016Assignee: KONICA MINOLTA, INC.Inventors: Rie Katakura, Hideo Taka
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Patent number: 9263684Abstract: Disclosed is an organic electroluminescent device having high external quantum efficiency and long life. Also disclosed are an illuminating device and a display device. The organic electroluminescent device is characterized by containing at least one compound having a partial structure represented by the following general Formula (1). [chemical formula 1] (1) In the formula, R1 represents a group (preferably an aromatic hydrocarbon group, an aromatic heterocyclic group, an alkyl group or an alkoxy group) having 4-20 carbon atoms in total and a substituent having a formula weight or 70-350 (preferably an alkyl group or an alkoxy group): R2-R4 independently represent a substituent; n2 represents a number of 0-4; n3 represents a number of 0-2; n4 represents a number of 0-8; and Q represents an atomic group necessary for forming an aromatic hydrocarbon ring or an aromatic heterocyclic ring.Type: GrantFiled: December 21, 2012Date of Patent: February 16, 2016Assignee: KONICA MINOLTA, INC.Inventors: Tatsuo Tanaka, Hiroshi Kita, Rie Katakura, Hideo Taka
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Patent number: 9257680Abstract: In the present invention, provided is an organic electroluminescent element material having a high externally taking-out quantum efficiency, which is suitable for manufacturing an element exhibiting long light emission lifetime, and also provided is an organic electroluminescent element possessing the material, a method of manufacturing the organic electroluminescent element, and a display as well as an illuminating device fitted with the organic electroluminescent element.Type: GrantFiled: May 2, 2014Date of Patent: February 9, 2016Assignee: KONICA MINOLTA HOLDINGS, INC.Inventors: Tatsuo Tanaka, Hiroshi Kita, Rie Katakura, Hideo Taka
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Publication number: 20150318489Abstract: An organic electroluminescence element includes: an anode; a cathode; and a luminous layer. The luminous layer includes: a luminescent dopant having a reorganization energy of 0 eV to 0.7 eV in electron transition from a ground state (S0) to a lowest excited triplet state (T1); and a host compound having a reorganization energy of 0 eV to 0.3 eV in electron transfer reaction between a ground state (S0) and an anionic radical state (AR), and having a molecular weight within a range of 500 to 3000.Type: ApplicationFiled: December 6, 2013Publication date: November 5, 2015Applicant: Konica Minolta, Inc.Inventors: Tomohiro OSHIYAMA, Shinya OTSU, Rie KATAKURA, Satoru INOUE
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Patent number: 9090819Abstract: Disclosed is an organic electroluminescent element which is characterized in that constituent layers including at least a phosphorescent light-emitting layer are provided between a pair of electrodes, and at least one of the constituent layers contains a compound represented by general formula (1). (In the formula, A1, A2 and A3 each represents a substituent; n1 and n2 each represents an integer of 0-3; X1 and X2 each represents an oxygen atom, a sulfur atom, an alkylene group, an imino group, a carbonyl group, a sulfoxide group or a sulfonyl group, or alternatively X2 represents a bonding hand; and Z1, Z2, Z3 and Z4 each represents an optionally substituted aromatic heterocyclic ring or an aromatic hydrocarbon ring, provided that all of the Z1, Z2, Z3 and Z4 are not aromatic hydrocarbon rings at the same time.Type: GrantFiled: April 28, 2010Date of Patent: July 28, 2015Assignee: KONICA MINOLTA, INC.Inventors: Shuichi Sugita, Eisaku Katoh, Motoaki Sugino, Rie Katakura
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Patent number: 9040975Abstract: The purpose of the present invention is to provide: an organic electroluminescence element having a plurality of light-emitting dopants of different light-emitting wavelengths and emitting white light, the white-light-emitting organic electroluminescence element having excellent longevity, low-voltage driving, and chromatic stability, and also having a few dark spots; as well as an illumination device and a display device that use the element. This organic electroluminescence element contains at least one light-emitting layer sandwiched between a positive electrode and a negative electrode, the organic electroluminescence element characterized in that the light-emitting layer contribution ratio, defined as the ratio ?PL/?EL of the photoluminescence intensity decay rate to the electroluminescence intensity decay rate, is 0.3 to 1.0.Type: GrantFiled: June 11, 2012Date of Patent: May 26, 2015Assignee: KONICA MINOLTA, INC.Inventors: Kunio Tani, Rie Katakura, Satoru Inoue
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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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Publication number: 20150005504Abstract: Disclosed is an organic electroluminescent device having high external quantum efficiency and long life. Also disclosed are an illuminating device and a display device. The organic electroluminescent device is characterized by containing at least one compound having a partial structure represented by the following general formula (1). [chemical formula 1] (l) In the formula, R1 represents a group (preferably an aromatic hydrocarbon group, an aromatic heterocyclic group, an alkyl group or an alkoxy group) having 4-20 carbon atoms in total and a substituent having a formula weight or 70-350 (preferably an alkyl group or an alkoxy group): R2R4 independently represent a substituent; n2 represents a number of 0-4; n3 represents a number of 0-2; n4 represents a number of 0-8; and Q represents an atomic group necessary for forming an aromatic hydrocarbon ring or an aromatic heterocyclic ring.Type: ApplicationFiled: December 21, 2012Publication date: January 1, 2015Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Tatsuo TANAKA, Hiroshi KITA, Rie KATAKURA, Hideo TAKA
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Publication number: 20140302230Abstract: In the present invention, provided is an organic electroluminescent element material having a high externally taking-out quantum efficiency, which is suitable for manufacturing an element exhibiting long light emission lifetime, and also provided is an organic electroluminescent element possessing the material, a method of manufacturing the organic electroluminescent element, and a display as well as an illuminating device fitted with the organic electroluminescent element.Type: ApplicationFiled: May 2, 2014Publication date: October 9, 2014Applicant: Konica Minolta, Inc.Inventors: Tatsuo TANAKA, Hiroshi KITA, Rie KATAKURA, Hideo TAKA
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Patent number: 8852757Abstract: Disclosed is an organic electroluminescent device having high external quantum efficiency and long emission life. Also disclosed are an illuminating device and a display, each comprising such an organic electroluminescent device. The organic electroluminescent device is characterized by comprising at least an anode and a cathode on a supporting substrate, while having at least one light-emitting layer between the anode and the cathode. The organic electroluminescent device is also characterized by containing a polymer which at least partially contains a compound A having a partial structure represented by the general formula (a) below and a reactive group, and is obtained by polymerizing the compound A through the reactive group. (In the formula, Ar1 and Ar2 respectively represent an aromatic ring.Type: GrantFiled: August 27, 2007Date of Patent: October 7, 2014Assignee: Konica Minolta Holdings, Inc.Inventors: Rie Katakura, Hiroshi Kita, Tatsuo Tanaka, Hideo Taka