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).

  • Patent number: 11053180
    Abstract: 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: Grant
    Filed: April 10, 2020
    Date of Patent: July 6, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
  • Publication number: 20200240589
    Abstract: 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: Application
    Filed: July 31, 2018
    Publication date: July 30, 2020
    Inventors: Daisuke ASARI, Masakazu HIGUCHI, Shinji KATO, Yukiko NOGUCHI
  • Publication number: 20200239389
    Abstract: 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: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
  • Patent number: 10654775
    Abstract: 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: Grant
    Filed: June 15, 2016
    Date of Patent: May 19, 2020
    Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
  • Patent number: 10625198
    Abstract: 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: Grant
    Filed: April 17, 2019
    Date of Patent: April 21, 2020
    Assignees: PANASONIC CORPORATION, KYOTO UNIVERSITY
    Inventors: Masashi Morita, Jin Zhang, Hidenobu Wakita, Yoichiro Tsuji, Susumu Kitagawa, Masakazu Higuchi
  • Publication number: 20190240612
    Abstract: 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: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Inventors: Masashi MORITA, Jin ZHANG, Hidenobu WAKITA, Yoichiro TSUJI, Susumu KITAGAWA, Masakazu HIGUCHI
  • Patent number: 10096837
    Abstract: 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: Grant
    Filed: March 19, 2015
    Date of Patent: October 9, 2018
    Assignees: 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
  • Publication number: 20180222823
    Abstract: 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: Application
    Filed: June 15, 2016
    Publication date: August 9, 2018
    Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya MORIKAWA, Mana SHIMOKAWA, Katsuki FUJIWARA, Satoshi TOKUNO, Masakazu HIGUCHI, Susumu KITAGAWA
  • Patent number: 10003085
    Abstract: 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: Grant
    Filed: December 12, 2014
    Date of Patent: June 19, 2018
    Assignees: 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
  • Publication number: 20170194652
    Abstract: 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: Application
    Filed: March 19, 2015
    Publication date: July 6, 2017
    Applicants: 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
  • Patent number: 9670127
    Abstract: 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: Grant
    Filed: February 24, 2015
    Date of Patent: June 6, 2017
    Assignee: Kyoto University
    Inventors: Susumu Kitagawa, Masakazu Higuchi, Prabhakara Rao Koya
  • Publication number: 20160362359
    Abstract: 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: Application
    Filed: February 24, 2015
    Publication date: December 15, 2016
    Inventors: Susumu Kitagawa, Masakazu Higuchi, Prabhakara Rao Koya
  • Publication number: 20160329571
    Abstract: 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: Application
    Filed: December 12, 2014
    Publication date: November 10, 2016
    Applicants: 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
  • Publication number: 20150352522
    Abstract: 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: Application
    Filed: February 21, 2014
    Publication date: December 10, 2015
    Applicants: 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
  • Publication number: 20130313127
    Abstract: 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: Application
    Filed: December 28, 2011
    Publication date: November 28, 2013
    Applicants: THE UNIVERSITY OF TOKYO, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yasushi Sato, Yoshihiro Kobori, Shunsuke Maekawa, Kazunari Domen, Jun Kubota, Masakazu Higuchi, Kazuhiro Takanabe
  • Patent number: 8594343
    Abstract: 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: Grant
    Filed: May 1, 2009
    Date of Patent: November 26, 2013
    Assignee: Japan Science and Technology Agency
    Inventors: Kazuo Toraichi, Masakazu Higuchi, Yasuo Morooka, Mitsuaki Nakamura
  • Publication number: 20120033830
    Abstract: 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: Application
    Filed: May 1, 2009
    Publication date: February 9, 2012
    Inventors: Kazuo Toraichi, Masakazu Higuchi, Yasuo Morooka, Mitsuaki Nakamura
  • Publication number: 20100114722
    Abstract: 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 made
    Type: Application
    Filed: November 9, 2009
    Publication date: May 6, 2010
    Applicant: COMSQUARE CO., LTD.
    Inventors: Yasushi UESHIMA, Takashi Mukaida, Masakazu Higuchi
  • Patent number: 4631181
    Abstract: 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: Grant
    Filed: March 28, 1985
    Date of Patent: December 23, 1986
    Assignees: Nippon Steel Corporation, Nippon Steel Chemical Co., Ltd.
    Inventors: Mitsuaki Matsumoto, Masatosi Furuyama, Tadao Tomioka, Hirofumi Sunago, Masakazu Higuchi