Patents by Inventor Masakazu Higuchi
Masakazu Higuchi 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: 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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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: 20200240589Abstract: An object of the present invention is to provide a gas storage container that is easy to transport and install. The gas storage container according to the present invention has flat upper and lower surfaces and can be stacked vertically. The gas storage container according to the present invention may include a casing that has a flat upper surface and a flat lower surface and is vertically stackable, and a gas container installed in the casing.Type: ApplicationFiled: July 31, 2018Publication date: July 30, 2020Inventors: Daisuke ASARI, Masakazu HIGUCHI, Shinji KATO, Yukiko NOGUCHI
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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: 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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Patent number: 10096837Abstract: Provided are: a supporting carbon material for a solid polymer fuel cell, said supporting carbon material making it possible to produce a high-performance solid polymer fuel cell in which there is little decrease in power generation performance as a result of repeated battery load fluctuation that inevitably occurs during operation of the solid polymer fuel cell; and a catalyst metal particle-supporting carbon material. The present invention relates to: a supporting carbon material for a solid polymer fuel cell, said supporting carbon material being a porous carbon material in which the specific surface area of mesopores having a pore diameter of 2-50 nm according to nitrogen adsorption measurement is 600-1,600 m2/g, the relative intensity ratio (IG?/IG) of the peak intensity (IG?) of the G-band 2,650-2,700 cm?1 range to the peak intensity (IG) of the G-band 1,550-1,650 cm?1 range in the Raman spectrum is 0.8-2.Type: GrantFiled: March 19, 2015Date of Patent: October 9, 2018Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.Inventors: Takashi Iijima, Masataka Hiyoshi, Katsumasa Matsumoto, Hiroyuki Hayashida, Kazuhiko Mizuuchi, Takumi Kouno, Masakazu Higuchi, Masakazu Katayama
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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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Patent number: 10003085Abstract: Provided are a supporting carbon material for a solid polymer fuel cell and a metal-catalyst-particle-supporting carbon material that, when used as a carrier for a solid polymer fuel cell catalyst, have excellent power generation performance in high-humidity conditions, which are conditions in which solid polymer fuel cells are operated. A supporting carbon material for a solid polymer fuel cell and a metal-catalyst-particle-supporting carbon material characterized in being a porous carbon material, the hydrogen content being 0.004-0.010% by mass, the nitrogen adsorption BET specific surface area being 600 m2/g-1500 m2/g, and the relative intensity ratio (ID/IG) between the peak intensity (ID) in the range of 1200-1400 cm?1 known as the D-band and the peak intensity (IG) in the range of 1500-1700 cm?1 known as the G-band, obtained from the Raman spectrum, being 1.0-2.0.Type: GrantFiled: December 12, 2014Date of Patent: June 19, 2018Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.Inventors: Katsumasa Matsumoto, Takashi Iijima, Masataka Hiyoshi, Hiroyuki Hayashida, Kazuhiko Mizuuchi, Takumi Kouno, Masakazu Higuchi, Masakazu Katayama
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Publication number: 20170194652Abstract: Provided are: a supporting carbon material for a solid polymer fuel cell, said supporting carbon material making it possible to produce a high-performance solid polymer fuel cell in which there is little decrease in power generation performance as a result of repeated battery load fluctuation that inevitably occurs during operation of the solid polymer fuel cell; and a catalyst metal particle-supporting carbon material. The present invention relates to: a supporting carbon material for a solid polymer fuel cell, said supporting carbon material being a porous carbon material in which the specific surface area of mesopores having a pore diameter of 2-50 nm according to nitrogen adsorption measurement is 600-1,600 m2/g, the relative intensity ratio (IG?/IG) of the peak intensity (IG?) of the G-band 2,650-2,700 cm?1 range to the peak intensity (IG) of the G-band 1,550-1,650 cm?1 range in the Raman spectrum is 0.8-2.Type: ApplicationFiled: March 19, 2015Publication date: July 6, 2017Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.Inventors: Takashi IIJIMA, Masataka HIYOSHI, Katsumasa MATSUMOTO, Hiroyuki HAYASHIDA, Kazuhiko MIZUUCHI, Takumi KOUNO, Masakazu HIGUCHI, Masakazu KATAYAMA
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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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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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Publication number: 20160329571Abstract: Provided are a supporting carbon material for a solid polymer fuel cell and a metal-catalyst-particle-supporting carbon material that, when used as a carrier for a solid polymer fuel cell catalyst, have excellent power generation performance in high-humidity conditions, which are conditions in which solid polymer fuel cells are operated. A supporting carbon material for a solid polymer fuel cell and a metal-catalyst-particle-supporting carbon material characterized in being a porous carbon material, the hydrogen content being 0.004-0.010% by mass, the nitrogen adsorption BET specific surface area being 600 m2/g-1500 m2/g, and the relative intensity ratio (ID/IG) between the peak intensity (ID) in the range of 1200-1400 cm?1 known as the D-band and the peak intensity (IG) in the range of 1500-1700 cm?1 known as the G-band, obtained from the Raman spectrum, being 1.0-2.0.Type: ApplicationFiled: December 12, 2014Publication date: November 10, 2016Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.Inventors: Katsumasa MATSUMOTO, Takashi IIJIMA, Masataka HIYOSHI, Hiroyuki HAYASHIDA, Kazuhiko MIZUUCHI, Takumi KOUNO, Masakazu HIGUCHI, Masakazu KATAYAMA
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Publication number: 20150352522Abstract: A carbon material for catalyst support use which, when used as a catalyst support, maintains a high porosity while being stable chemically, having electrical conductivity, being excellent in durability, and being excellent in diffusibility of the reaction starting materials and reaction products is provided. It is characterized by comprising dendritic carbon mesoporous structures which have 3D structures of branched carbon-containing rod shapes or carbon-containing ring shapes, having a pore size of 1 to 20 nm and a cumulative pore volume of 0.2 to 1.5 cc/g found by analyzing a nitrogen adsorption isotherm by the Dollimore-Heal method, and having a powder X-ray diffraction spectrum which has a peak corresponding to a 002 diffraction line of graphite between diffraction angles (2?: degrees) of 20 to 30 degrees and has a peak with a half value width of 0.1 degree to 1.0 degree at 25.5 to 26.5 degrees.Type: ApplicationFiled: February 21, 2014Publication date: December 10, 2015Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.Inventors: Kazuhiko MIZUUCHI, Takumi KOUNO, Masakazu KATAYAMA, Masakazu HIGUCHI, Nobuyuki NISHI, Takashi IIJIMA, Masataka HIYOSHI, Katsumasa MATSUMOTO
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Publication number: 20130313127Abstract: The invention provides an organic compound(s) hydrogenation device that allows hydrogen derived from water to be stored essentially without generating hydrogen gas. The organic compound hydrogenation device of the invention comprises an oxidation chamber that holds a water-containing electrolyte, a reduction chamber that holds an organic compound(s) with an unsaturated bond, an electrolyte membrane with ion permeability that separates the electrolyte held in the oxidation chamber from the organic compound(s) held in the reduction chamber, an oxidizing electrode that generates protons from the water held in the oxidation chamber, and a reducing electrode that hydrogenates the organic compound(s) held in the reduction chamber.Type: ApplicationFiled: December 28, 2011Publication date: November 28, 2013Applicants: THE UNIVERSITY OF TOKYO, JX NIPPON OIL & ENERGY CORPORATIONInventors: Yasushi Sato, Yoshihiro Kobori, Shunsuke Maekawa, Kazunari Domen, Jun Kubota, Masakazu Higuchi, Kazuhiro Takanabe
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Patent number: 8594343Abstract: There is provided a sound processing apparatus and a sound processing method which are capable of reproducing discrete data with a high-quality sound matching users' preferences. In a sound processing means 2, since an interpolation value reflecting a value of a variable parameter ? by which the value of a control sampling function c0(t) is multiplied can be calculated, an analog signal obtained through the interpolation performed in a sampling function sN(t) can be regulated in accordance with the variable parameter ? by changing the value of the variable parameter ?. In this way, by allowing the user to appropriately change the variable parameter ? in accordance with various conditions including music reproduction environments, sound sources, musical tones and so on, it becomes possible to reproduce high-quality-sound music in which its frequency characteristics of the analog signal have changed and a high quality desired by the user is obtained.Type: GrantFiled: May 1, 2009Date of Patent: November 26, 2013Assignee: Japan Science and Technology AgencyInventors: Kazuo Toraichi, Masakazu Higuchi, Yasuo Morooka, Mitsuaki Nakamura
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Publication number: 20120033830Abstract: There is provided a sound processing apparatus and a sound processing method which are capable of reproducing discrete data with a high-quality sound matching users' preferences. In a sound processing means 2, since an interpolation value reflecting a value of a variable parameter ? by which the value of a control sampling function c0(t) is multiplied can be calculated, an analog signal obtained through the interpolation performed in a sampling function sN(t) can be regulated in accordance with the variable parameter ? by changing the value of the variable parameter ?. In this way, by allowing the user to appropriately change the variable parameter ? in accordance with various conditions including music reproduction environments, sound sources, musical tones and so on, it becomes possible to reproduce high-quality-sound music in which its frequency characteristics of the analog signal have changed and a high quality desired by the user is obtained.Type: ApplicationFiled: May 1, 2009Publication date: February 9, 2012Inventors: Kazuo Toraichi, Masakazu Higuchi, Yasuo Morooka, Mitsuaki Nakamura
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Publication number: 20100114722Abstract: An advertisement information managing method includes generating a plurality of identification information, generating a plurality of advertisement information that respectively indexes the plurality of identification information by combining the plurality of identification information with basic advertisement information respectively, and cross-checking the plurality of identification information with input information in a call that is made according to one of the plurality of advertisement information, so as to judge according to which one of the plurality of advertisement information the call is madeType: ApplicationFiled: November 9, 2009Publication date: May 6, 2010Applicant: COMSQUARE CO., LTD.Inventors: Yasushi UESHIMA, Takashi Mukaida, Masakazu Higuchi
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Patent number: 4631181Abstract: A mesophase pitch suitable for carbon products, particularly for carbon fibers, which has a mesophase content of at least 40%, preferably at least 60%, and a larger mesophase domain, is produced by adding at least one part by weight of at least one of an alcohol and a phenol to 100 parts by weight of heavy bitumens, subjecting the resulting mixture to pretreatment by heating at least at 250.degree. C., and then subjecting the pretreated mixture to heat treatment until mesophases are formed.Type: GrantFiled: March 28, 1985Date of Patent: December 23, 1986Assignees: Nippon Steel Corporation, Nippon Steel Chemical Co., Ltd.Inventors: Mitsuaki Matsumoto, Masatosi Furuyama, Tadao Tomioka, Hirofumi Sunago, Masakazu Higuchi