Patents by Inventor Atsushi Wakamiya
Atsushi Wakamiya 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: 20240117226Abstract: An adhesive composition, including: a reaction product (A) among a bifunctional epoxy resin represented by the formula (2), a tri- or more functional epoxy resin represented by the formula (3), and a saturated acid anhydride represented by the following general formula (4); a UV-sensitive reaction initiator (B); and a dilution solvent (C), wherein the component (A) is a compound represented by the formula (1), a ratio of a total mole of epoxy groups in the multi-functional epoxy resin to a mole of the saturated acid anhydride is 1.30 to 3.00, and a mole of the bifunctional epoxy resin relative to a total mole of the multi-functional epoxy resin is 0.001 to 0.15. This provides a highly reliable epoxy-resin-based adhesive composition and film-shaped sealing material having a low viscosity, curability at low temperature, and high adhesiveness, and retaining power generation performance of a perovskite solar cell before and after sealing.Type: ApplicationFiled: August 25, 2023Publication date: April 11, 2024Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takayuki KUSUNOKI, Masao ANDO, Nobuhiro ICHIROKU, Hideo NAKAGAWA, Atsushi WAKAMIYA, Yuko MATSUSHIGE
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Publication number: 20210319957Abstract: Provided are: a composition for forming a hole transporting layer for perovskite solar cells, which is inexpensive and does not need to be used together with a dopant; and a compound which can be contained in a composition for forming a hole transporting layer.Type: ApplicationFiled: August 1, 2019Publication date: October 14, 2021Inventors: Hidetaka NISHIMURA, Iku OKADA, Taro TANABE, Atsushi WAKAMIYA
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Patent number: 11088207Abstract: The present technology relates to a solid-state image sensor, a photoelectric conversion film, an electron blocking layer, an imaging apparatus, and an electronic device that can appropriately photoelectrically convert light of specific wavelengths with high spectral characteristics and high photoelectric conversion efficiency. A photoelectric conversion layer or an electron blocking layer is configured with a photoelectric conversion film made of only a compound represented by Chemical Formula (1). The present technology can be applied to a solid-state image sensor.Type: GrantFiled: May 25, 2016Date of Patent: August 10, 2021Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Yuta Hasegawa, Nobuyuki Matsuzawa, Daisuke Hobara, Atsushi Wakamiya
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Patent number: 11066431Abstract: A complex has a structure of formula (1A): SnXn·(m)L, wherein X is at least one type of halogen atoms, L is a polar solvent molecule, n is a value from 1.5 to 2.5, and m is a value from 0.3 to 1.9. A perovskite compound has a structure of formula (2A): RSnXj, wherein Sn has an oxidation number from 1.5 to 2.5, R is at least one type of a monovalent cation, X is at least one type of halogen atoms, and j is a value from 2.5 to 3.5, and the perovskite compound is free of tin oxide; or a perovskite compound has a structure of formula (2B): R2M2BiX1, wherein R is at least one type of a monovalent cation, X is at least one type of halogen atoms; M2 is a monovalent metal, and i is a value from 5.0 to 7.0.Type: GrantFiled: January 26, 2018Date of Patent: July 20, 2021Assignee: KYOTO UNIVERSITYInventors: Atsushi Wakamiya, Masashi Ozaki, Yasujiro Murata
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Publication number: 20210119127Abstract: Problem: To provide a production method for a perovskite layer using a tin-based perovskite compound having excellent flatness and a production method for a perovskite-type solar cell using the perovskite layer obtained by the above-described production method for the perovskite layer. Solution: A method for producing a perovskite layer that includes a step of applying a solution containing an Sn-based perovskite compound to a substrate, a step of applying a poor solvent to the substrate, and a step of performing an annealing process to the substrate, in this order, wherein the poor solvent is at 45° C. to 100° C.Type: ApplicationFiled: March 20, 2019Publication date: April 22, 2021Applicant: KYOTO UNIVERSITYInventors: Atsushi Wakamiya, Masashi Ozaki, Jeiwei Liu
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Complex and perovskite material, and perovskite-type solar cell using complex or perovskite material
Patent number: 10937972Abstract: The complex comprising one or more of the compound represented by general formula: RPbn1Xm1 (wherein R is a cation represented by R1NH3+ (wherein R1 represents a univalent substituted or unsubstituted hydrocarbon group), or the following formula: (wherein R2 represents a hydrogen atom, or a univalent substituted or unsubstituted hydrocarbon group); X is the same or different, and each represents a halogen atom; n1 is 0.8 to 1.2; and m1 is 2.8 to 3.2, or the compound represented by general formula: R2Pbn2Xm2 wherein R and X are as defined above; n2 is 2.8 to 3.2; and m2 is 7.7 to 8.3; and one or more dimethylformamide molecules is capable of decreasing the stirring time upon dissolution in an organic solvent such as DMSO, as well as decreasing the hysteresis and improving the solar cell characteristics (in particular, photoelectric conversion efficiency) when the complex is applied to a perovskite layer.Type: GrantFiled: December 16, 2016Date of Patent: March 2, 2021Assignee: Kyoto UniversityInventors: Atsushi Wakamiya, Yumi Hirose, Ai Shimazaki -
Publication number: 20190345176Abstract: A complex has a structure of formula (1A): SnXn·(m)L, wherein X is at least one type of halogen atoms, L is a polar solvent molecule, n is a value from 1.5 to 2.5, and m is a value from 0.3 to 1.9. A perovskite compound has a structure of formula (2A): RSnXj, wherein Sn has an oxidation number from 1.5 to 2.5, R is at least one type of a monovalent cation, X is at least one type of halogen atoms, and j is a value from 2.5 to 3.5, and the perovskite compound is free of tin oxide; or a perovskite compound has a structure of formula (2B): R2M2BiX1, wherein R is at least one type of a monovalent cation, X is at least one type of halogen atoms; M2 is a monovalent metal, and i is a value from 5.0 to 7.0.Type: ApplicationFiled: January 26, 2018Publication date: November 14, 2019Applicant: KYOTO UNIVERSITYInventors: Atsushi Wakamiya, Masashi Ozaki, Yasujiro Murata
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Patent number: 10211401Abstract: Provided are: a macromolecular compound for providing an organic semiconductor material exhibiting excellent conversion efficiency; a starting-material compound having high material design freedom; and methods for producing the same. The macromolecular compound according to the present invention comprising a benzobisthiazole structural unit represented by the formula (1): [in the formula (1), T1 and T2 each independently represent an alkoxy group, a thioalkoxy group, a thiophene ring optionally substituted by a hydrocarbon group or an organosilyl group, a thiazole ring optionally substituted by a hydrocarbon group or an organosilyl group, or a phenyl group optionally substituted by a hydrocarbon group, an alkoxy group, a thioalkoxy group, an organosilyl group, a halogen atom or a trifluoromethyl group; and B1 and B2 each represent a thiophene ring optionally substituted by a hydrocarbon group, a thiazole ring optionally substituted by a hydrocarbon group, or an ethynylene group].Type: GrantFiled: February 3, 2015Date of Patent: February 19, 2019Assignee: TOYOBO CO., LTD.Inventors: Atsushi Wakamiya, Kazutake Hagiya, Shiro Hamamoto, Hikaru Tanaka
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COMPLEX AND PEROVSKITE MATERIAL, AND PEROVSKITE-TYPE SOLAR CELL USING COMPLEX OR PEROVSKITE MATERIAL
Publication number: 20180366657Abstract: The complex comprising one or more of the compound represented by general formula: RPbn1Xm1 (wherein R is a cation represented by R1NH3+ (wherein R1 represents a univalent substituted or unsubstituted hydrocarbon group), or the following formula: (wherein R2 represents a hydrogen atom, or a univalent substituted or unsubstituted hydrocarbon group); X is the same or different, and each represents a halogen atom; n1 is 0.8 to 1.2; and m1 is 2.8 to 3.2, or the compound represented by general formula: R2Pbn2Xm2 wherein R and X are as defined above; n2 is 2.8 to 3.2; and m2 is 7.7 to 8.3; and one or more dimethylformamide molecules is capable of decreasing the stirring time upon dissolution in an organic solvent such as DMSO, as well as decreasing the hysteresis and improving the solar cell characteristics (in particular, photoelectric conversion efficiency) when the complex is applied to a perovskite layer.Type: ApplicationFiled: December 16, 2016Publication date: December 20, 2018Inventors: Atsushi Wakamiya, Yumi Hirose, Ai Shimazaki -
Publication number: 20180151625Abstract: The present technology relates to a solid-state image sensor, a photoelectric conversion film, an electron blocking layer, an imaging apparatus, and an electronic device that can appropriately photoelectrically convert light of specific wavelengths with high spectral characteristics and high photoelectric conversion efficiency. A photoelectric conversion layer or an electron blocking layer is configured with a photoelectric conversion film made of only a compound represented by Chemical Formula (1). The present technology can be applied to a solid-state image sensor.Type: ApplicationFiled: May 25, 2016Publication date: May 31, 2018Inventors: YUTA HASEGAWA, NOBUYUKI MATSUZAWA, DAISUKE HOBARA, ATSUSHI WAKAMIYA
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Patent number: 9818955Abstract: The compound represented by the following general formula is useful as a light emitting material. Ar1 represents an arylene group, Ar2 and Ar3 represent an aryl group, and R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 represents a diarylamino group.Type: GrantFiled: February 28, 2014Date of Patent: November 14, 2017Assignee: KYULUX, INC.Inventors: Hironori Kaji, Hajime Suzuki, Katsuaki Suzuki, Hajime Oiwa, Atsushi Wakamiya, Tatsuya Fukushima, Furitsu Suzuki, Yasujiro Murata, Katsuyuki Shizu, Chihaya Adachi
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Publication number: 20170069845Abstract: Provided are: a macromolecular compound for providing an organic semiconductor material exhibiting excellent conversion efficiency; a starting-material compound having high material design freedom; and methods for producing the same. The macromolecular compound according to the present invention comprising a benzobisthiazole structural unit represented by the formula (1): [in the formula (1), T1 and T2 each independently represent an alkoxy group, a thioalkoxy group, a thiophene ring optionally substituted by a hydrocarbon group or an organosilyl group, a thiazole ring optionally substituted by a hydrocarbon group or an organosilyl group, or a phenyl group optionally substituted by a hydrocarbon group, an alkoxy group, a thioalkoxy group, an organosilyl group, a halogen atom or a trifluoromethyl group; and B1 and B2 each represent a thiophene ring optionally substituted by a hydrocarbon group, a thiazole ring optionally substituted by a hydrocarbon group, or an ethynylene group].Type: ApplicationFiled: February 3, 2015Publication date: March 9, 2017Applicant: TOYOBO CO., LTD.Inventors: Atsushi Wakamiya, Kazutake Hagiya, Shiro Hamamoto, Hikaru Tanaka
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Publication number: 20160020402Abstract: The compound represented by the following general formula is useful as a light emitting material. Ar1 represents an arylene group, Ar2 and Ar3 represent an aryl group, and R1 to R8 represent a hydrogen atom or a substituent, provided that at least one of R1 to R8 represents a diarylamino group.Type: ApplicationFiled: February 28, 2014Publication date: January 21, 2016Inventors: Hironori KAJI, Hajime SUZUKI, Katsuaki SUZUKI, Hajime OIWA, Atsushi WAKAMIYA, Tatsuya FUKUSHIMA, Furitsu SUZUKI, Yasujiro MURATA, Katsuyuki SHIZU, Chihaya ADACHI
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Publication number: 20140058099Abstract: The compounds represented fey the following general formula is is thermally stable and has excellent characteristics as a charge transport material [Ar1 represents a single bond, a benzene ring, etc.; X1 represents a linking group that links via an oxygen atom, a sulfur atom, a carbon atom, a nitrogen atom, a phosphorus atom or a silicon atom; either one of L1 and L2, and L3 and L4 bond to each other to represent a linking group that links via an oxygen atom, a sulfur atom, a carbon atom, a nitrogen atom, a phosphorus atom or a silicon atom; the other of L1 and L2, and L3 and L4 represent a hydrogen atom or a substituent; Y1 represents a linking group that links via a nitrogen atom, a boron atom or a phosphorus atom; R1, R2, R5 to R7 and R10 to R12 represent a hydrogen atom or a substituent; and n1 indicates an integer of 2 or more.].Type: ApplicationFiled: March 2, 2012Publication date: February 27, 2014Applicant: KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATIONInventors: Atsushi Wakamiya, Hidetaka Nishimura, Yasujiro Murata, Tatsuya Fukushima, Hironori Kaji
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Publication number: 20140020761Abstract: Provided is an inexpensive and high-performance dye compound that does not use an expensive precious metal and does not require the use of a strong electron-withdrawing group. The compound is formed such that a boron substituent is introduced into a heteroatom-containing ? electron-based backbone containing a double bond between carbon and the heteroatom to obtain a compound in which a backbone having boron and a coordination bond in a molecule thereof is used as a ? electron-accepting backbone.Type: ApplicationFiled: March 9, 2012Publication date: January 23, 2014Applicant: KYOTO UNIVERSITYInventors: Atsushi Wakamiya, Takuhiro Taniguchi, Yasujiro Murata, Joanne Ting Dy, Hiroshi Segawa
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Publication number: 20100308313Abstract: [Object] To provide a wide band-gap material capable of forming a stable amorphous thin film and an organic electroluminescent device using such a compound and having a high light emission efficiency. [Solution] It has been found that a novel oligophenylene derivative, which is applicable as an organic electroluminescent material, can be produced efficiently using a cross-coupling reaction. It has also been found that a highly-efficient blue phosphorescent light-emitting device can be produced using this compound. The present invention is based on these findings.Type: ApplicationFiled: December 19, 2008Publication date: December 9, 2010Inventors: Shigehiro Yamaguchi, Atsushi Wakamiya, Chihaya Adachi, Masayuki Yahiro, Ayataka Endo, Toshihisa Ide, Masutaka Shinmen