Patents by Inventor Susumu Kitagawa
Susumu Kitagawa 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: 20220032265Abstract: To provide a gas storage material and gas separation system capable of regulating the storage pressure and release pressure of a gas. A gas storage material which has two cubic lattice-shaped organometallic complexes, wherein the two organometallic complexes form an interpenetrating structure in which one apex portion of a unit cell of one of the organometallic complexes is positioned in a space inside one unit cell of the other organometallic complex.Type: ApplicationFiled: September 5, 2019Publication date: February 3, 2022Inventors: Bruno FONTAINE, Patrick GINET, Akihiro HORI, Nobuhiko HOSONO, Shinpei KUSAKA, Susumu KITAGAWA, Christophe LAVENN, Yunsheng MA, Ryotaro MATSUDA, Mickaele BONNEAU
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Patent number: 11053180Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: GrantFiled: April 10, 2020Date of Patent: July 6, 2021Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
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Patent number: 11038187Abstract: A proton conductor includes a complex of phosphoric acid and a coordination polymer in which a metal ion and a ligand are continuously connected by a coordinate bond. The phosphoric acid includes a first phosphoric acid that is coordinately bonded to the metal ion, and a second phosphoric acid that is not coordinately bonded to the metal ion.Type: GrantFiled: August 20, 2019Date of Patent: June 15, 2021Assignees: DENSO CORPORATION, Kyoto UniversityInventors: Tomoya Itakura, Hidehiko Hiramatsu, Susumu Kitagawa, Satoshi Horike
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Publication number: 20200239389Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
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Publication number: 20200220192Abstract: A proton conductor includes an anionic molecule and a cationic organic molecule. The anionic molecule is an anionic metal complex molecule. For example, the anionic metal complex molecule includes at least one chemical bond between a metal ion and an oxoacid ion. For example, the proton conductor can be used as an electrolyte membrane included in a fuel cell.Type: ApplicationFiled: December 27, 2019Publication date: July 9, 2020Inventors: Kazuki TAKAHASHI, Tomoya ITAKURA, Kenichiro KAMI, Satoshi HORIKE, Susumu KITAGAWA, Tomofumi TADA
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Patent number: 10654775Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: GrantFiled: June 15, 2016Date of Patent: May 19, 2020Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
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Patent number: 10625198Abstract: A desulfurization apparatus according to the present invention includes: a first desulfurizer filled with a first desulfurization agent that removes a first sulfur compound from a hydrocarbon fuel; and a second desulfurizer filled with a second desulfurization agent that removes a second sulfur compound from the hydrocarbon fuel, the second desulfurizer being provided downstream of the first desulfurizer in a flow direction of the hydrocarbon fuel. The second desulfurization agent is constituted by a porous coordination polymer having a polymeric structure that is a combination of copper ions and organic ligands. A sulfur compound adsorption ability of the second desulfurization agent to adsorb the second sulfur compound is different from a sulfur compound adsorption ability of the first desulfurization agent to adsorb the first sulfur compound. A temperature of the second desulfurization agent is kept to 100° C. or lower.Type: GrantFiled: April 17, 2019Date of Patent: April 21, 2020Assignees: PANASONIC CORPORATION, KYOTO UNIVERSITYInventors: Masashi Morita, Jin Zhang, Hidenobu Wakita, Yoichiro Tsuji, Susumu Kitagawa, Masakazu Higuchi
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Publication number: 20200099077Abstract: A fuel cell electrolyte includes: a porous member; and a proton conductive material supported by the porous member. The proton conductive material includes a metal ion, an oxoanion, and a proton coordination molecule. At least one of the oxoanion and the proton coordination molecule coordinates with the metal ion to provide a coordination polymer. A relative density is equal to or higher than 75%.Type: ApplicationFiled: November 26, 2019Publication date: March 26, 2020Inventors: Ryota SHINOZAKI, Nobuyoshi SAKAKIBARA, Tomoya ITAKURA, Susumu KITAGAWA, Satoshi HORIKE
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Patent number: 10562830Abstract: The present invention provides a gas separation system and a gas separation method capable of separating various types of hydrocarbon gas with high selectivity, and a gas separation system is for separating one type or more of hydrocarbon gases from mixed gas consisting of two types or more of hydrocarbon gases; having a porous metal-organic complex having pores determined by metal ion-containing planar ligands facing each other and pillar ligands coordinating between the planar ligands, and a controller for controlling at least a pressure of the mixed gas; and in which the pressure is controlled to control adsorption of the hydrocarbon gas to the porous metal-organic complex or desorption thereof from the porous metal-organic complex.Type: GrantFiled: December 1, 2017Date of Patent: February 18, 2020Assignees: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Kyoto UniversityInventors: Christophe Lavenn, Patrick Ginet, Susumu Kitagawa, Ryotaro Matsuda
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Publication number: 20190386327Abstract: A proton conductor includes a complex of phosphoric acid and a coordination polymer in which a metal ion and a ligand are continuously connected by a coordinate bond. The phosphoric acid includes phosphoric acid that is coordinately bonded to the metal ion, and phosphoric acid that is not coordinately bonded to the metal ion.Type: ApplicationFiled: August 20, 2019Publication date: December 19, 2019Inventors: Tomoya ITAKURA, Hidehiko HIRAMATSU, Susumu KITAGAWA, Satoshi HORIKE
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Publication number: 20190321787Abstract: Disclosed is a composite membrane comprising a mixed matrix membrane comprising a polymer matrix and fillers dispersed in the polymer matrix. The polymer matrix comprises a polymer having a polar functional group. The H2 permeability coefficient of the polymer matrix is 20 Barrer or more at 4 bar and 298 K. The filler has a polar functional group that may be capable of forming a hydrogen bond with the polar functional group of the polymer, and has an average diameter of 100 nm or less.Type: ApplicationFiled: November 2, 2017Publication date: October 24, 2019Applicant: Kyoto UniversityInventors: Easan Sivaniah, Behnam Ghalei, Kento Sakurai, Yosuke Kinoshita, Susumu Kitagawa
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Publication number: 20190240612Abstract: A desulfurization apparatus according to the present invention includes: a first desulfurizer filled with a first desulfurization agent that removes a first sulfur compound from a hydrocarbon fuel; and a second desulfurizer filled with a second desulfurization agent that removes a second sulfur compound from the hydrocarbon fuel, the second desulfurizer being provided downstream of the first desulfurizer in a flow direction of the hydrocarbon fuel. The second desulfurization agent is constituted by a porous coordination polymer having a polymeric structure that is a combination of copper ions and organic ligands. A sulfur compound adsorption ability of the second desulfurization agent to adsorb the second sulfur compound is different from a sulfur compound adsorption ability of the first desulfurization agent to adsorb the first sulfur compound. A temperature of the second desulfurization agent is kept to 100° C. or lower.Type: ApplicationFiled: April 17, 2019Publication date: August 8, 2019Inventors: Masashi MORITA, Jin ZHANG, Hidenobu WAKITA, Yoichiro TSUJI, Susumu KITAGAWA, Masakazu HIGUCHI
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Publication number: 20180222823Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: ApplicationFiled: June 15, 2016Publication date: August 9, 2018Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya MORIKAWA, Mana SHIMOKAWA, Katsuki FUJIWARA, Satoshi TOKUNO, Masakazu HIGUCHI, Susumu KITAGAWA
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Publication number: 20180155258Abstract: The present invention provides a gas separation system and a gas separation method capable of separating various types of hydrocarbon gas with high selectivity, and a gas separation system is for separating one type or more of hydrocarbon gases from mixed gas consisting of two types or more of hydrocarbon gases; having a porous metal-organic complex having pores determined by metal ion-containing planar ligands facing each other and pillar ligands coordinating between the planar ligands, and a controller for controlling at least a pressure of the mixed gas; and in which the pressure is controlled to control adsorption of the hydrocarbon gas to the porous metal-organic complex or desorption thereof from the porous metal-organic complex.Type: ApplicationFiled: December 1, 2017Publication date: June 7, 2018Inventors: Christophe LAVENN, Patrick GINET, Susumu KITAGAWA, Ryotaro MATSUDA
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Patent number: 9929424Abstract: A proton conductor includes a coordination polymer having stoichiometrically metal ions, oxoanions, and proton coordinating molecules capable of undergoing protonation or deprotonation. The coordination polymer including coordination entities that are repeatedly coordinated to bond the coordination entities with one another. Each coordination entity is either a first coordination entity or a second coordination entity. The first coordination entity is one metal ion of the metal ions coordinated with either at least one oxoanion of the oxoanions or at least one proton coordinating molecule of the proton coordinating molecules. The second coordination entity is the metal ion coordinated with each of at least one oxoanion of the oxoanions and at least one proton coordinating molecule of the proton coordinating molecules. At least a part of the proton conductor is non-crystalline. The proton conductor has high ion conductivity at high temperature.Type: GrantFiled: July 27, 2016Date of Patent: March 27, 2018Assignees: DENSO CORPORATION, Kyoto UniversityInventors: Tomoya Itakura, Yoshimasa Hijikata, Satoshi Horike, Susumu Kitagawa
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Patent number: 9670127Abstract: An object of the present invention is to provide a novel porous coordination polymer having superhydrophobicity. The present invention relates to a porous coordination polymer comprising: a divalent or trivalent metal ion; and an organic ligand represented by the following formula (1): wherein X1, X2, and X3 are the same or different, and each represent CO2?, CS2?, PO32?, PO42?, AsO32?, AsO42?, SO3?, SO4?, SeO3?, SeO4?, TeO3?, or TeO4?; and R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 are the same or different, and each represent hydrogen or C1-20 alkyl; the metal ion and the organic ligand being alternately linked by a coordinate bond.Type: GrantFiled: February 24, 2015Date of Patent: June 6, 2017Assignee: Kyoto UniversityInventors: Susumu Kitagawa, Masakazu Higuchi, Prabhakara Rao Koya
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Patent number: 9630164Abstract: An object of the present invention is to provide a porous polymer metal complex which can be used as a gas adsorbent and contains two or more types of similar ligands. A porous polymer metal complex is provided expressed by [CuX]n(1) (in the Formula, X represents two or more types of isophthalic acid ions selected from the group consisting of isophthalic acid ions and isophthalic acid ions having a substituent at position 5, at least an amount of one type of X is 5 mol % to 95 mol % of the total number of moles of X, and n represents an assembly number of constituent units expressed by CuX and is not particularly limited).Type: GrantFiled: October 31, 2013Date of Patent: April 25, 2017Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Hiroshi Kajiro, Koichi Nose, Susumu Kitagawa, Ryotaro Matsuda, Hiroshi Sato
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Publication number: 20170033386Abstract: A proton conductor includes a coordination polymer having stoichiometrically metal ions, oxoanions, and proton coordinating molecules capable of undergoing protonation or deprotonation. The coordination polymer including coordination entities that are repeatedly coordinated to bond the coordination entities with one another. Each coordination entity is either a first coordination entity or a second coordination entity. The first coordination entity is one metal ion of the metal ions coordinated with either at least one oxoanion of the oxoanions or at least one proton coordinating molecule of the proton coordinating molecules. The second coordination entity is the metal ion coordinated with each of at least one oxoanion of the oxoanions and at least one proton coordinating molecule of the proton coordinating molecules. At least a part of the proton conductor is non-crystalline. The proton conductor has high ion conductivity at high temperature.Type: ApplicationFiled: July 27, 2016Publication date: February 2, 2017Inventors: Tomoya ITAKURA, Yoshimasa HIJIKATA, Satoshi HORIKE, Susumu KITAGAWA
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Publication number: 20160362359Abstract: An object of the present invention is to provide a novel porous coordination polymer having superhydrophobicity. The present invention relates to a porous coordination polymer comprising: a divalent or trivalent metal ion; and an organic ligand represented by the following formula (1) : wherein X1, X2, and X3 are the same or different, and each represent CO2?, CS2?, PO32?, PO42?, AsO32?, AsO42?, SO3?, SO4?, SeO3?, SeO4?, TeO3?, or TeO4?; and R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 are the same or different, and each represent hydrogen or C1-20 alkyl; the metal ion and the organic ligand being alternately linked by a coordinate bond.Type: ApplicationFiled: February 24, 2015Publication date: December 15, 2016Inventors: Susumu Kitagawa, Masakazu Higuchi, Prabhakara Rao Koya
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Patent number: 9178239Abstract: A proton conductor includes a metal ion, an oxoanion, and a molecule capable of undergoing protonation or deprotonation, in which at least one of the oxoanion and the molecule capable of undergoing protonation or deprotonation coordinates to the metal ion to form a coordination polymer. The oxoanion is preferably a monomer. The oxoanion is exemplified by at least one selected from the group consisting of phosphate ion, hydrogenphosphate ion, and dihydrogenphosphate ion. The molecule capable of undergoing protonation or deprotonation is exemplified by at least one selected from the group consisting of imidazole, triazole, benzimidazole, benzotriazole, and derivatives thereof.Type: GrantFiled: April 11, 2013Date of Patent: November 3, 2015Assignees: DENSO CORPORATION, KYOTO UNIVERSITYInventors: Tomoya Itakura, Miho Ito, Susumu Kitagawa, Satoshi Horike, Daiki Umeyama, Munehiro Inukai