Patents by Inventor Hideto Matsuyama
Hideto Matsuyama 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: 11872521Abstract: An air purifying system includes: a carbon dioxide remover including first and second spaces partitioned by a gas permeable membrane with 50 nm or less diameter micropores; a feed passage leading to-be-purified air from a room to the first space; a supply passage supplying clean gas having lower carbon dioxide and higher oxygen concentrations than the to-be-purified air to the second space; a discharge passage discharging, from the second space, mixed gas; a return passage leading purified air from the first space into the room, the purified air resulting from removing carbon dioxide from the to-be-purified air; and adjusting equipment adjusting a gas pressure in the first and second spaces to be substantially equal to each other. The to-be-purified air flows in the first space along a surface of the gas permeable membrane, and the clean gas flows in the second space along a surface of the gas permeable membrane.Type: GrantFiled: January 24, 2020Date of Patent: January 16, 2024Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Katsuya Umemoto, Kazuhiro Okumura, Kouji Fukumoto, Tomoaki Umemura, Hideto Matsuyama, Eiji Kamio
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Publication number: 20230347297Abstract: An object of the present invention is to provide a polyamide porous membrane having improved fluid permeation performance. A polyamide porous membrane having a dense layer formed on at least one surface, wherein the polyamide porous membrane has a streak-like recessed portion extending in one direction of a surface of the dense layer, and the streak-like recessed portion has an orientation angle of 0 to 5.0° or 175.0 to 180.0° and an orientation intensity of 1.5 to 2.0 according to predetermined orientation analysis.Type: ApplicationFiled: September 24, 2021Publication date: November 2, 2023Inventors: Ryota NAKAMURA, Kuniko INOUE, Kyohei UMAKOSHI, Takahiro ONO, Hideto MATSUYAMA
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Publication number: 20230330599Abstract: An object of the present invention is to provide a nanofiltration membrane having a molecular weight cut-off of 200 to 1,000 and a high amount pf permeate for methanol, and suitable for use as an organic solvent nanofiltration membrane. A nanofiltration membrane formed using a polyamide resin, the nanofiltration membrane having a molecular weight cut-off of 200 to 1,000 and a methanol permeability of 0.03 L/(m2·bar·h) or more.Type: ApplicationFiled: September 24, 2021Publication date: October 19, 2023Inventors: Ryota NAKAMURA, Kuniko INOUE, Kyohei UMAKOSHI, Takahiro ONO, Hideto MATSUYAMA
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Patent number: 11639299Abstract: A draw solute for forward osmosis membrane process, comprising an addition polymer obtained by addition polymerization of an alkylene oxide having 2 to 10 carbon atoms to an amine compound.Type: GrantFiled: August 28, 2019Date of Patent: May 2, 2023Assignees: Nippon Shokubai Co., Ltd., National University Corporation Kobe UniversityInventors: Koji Koyama, Yuki Miyoshi, Hideto Matsuyama, Asuka Inada
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Patent number: 11607652Abstract: The objective of the present invention is to provide a composite separation membrane which is excellent in not only a liquid permeable performance and a separation performance relatively but also a durability and which is particularly useful as a membrane for liquid treatment, and a method for treating a liquid by using the composite separation membrane. The composite separation membrane according to the present invention is characterized in comprising a supporting base material and a complex layer, wherein the complex layer is placed on the supporting base material, the complex layer comprises oxidized metal nanosheets, graphene oxide and an alkanolamine, and at least one of the alkanolamine is present between the oxidized metal nanosheets.Type: GrantFiled: January 29, 2019Date of Patent: March 21, 2023Assignee: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Keizo Nakagawa, Misato Kunimatsu, Tomohiro Sera, Takuji Shintani, Tomohisa Yoshioka, Hideto Matsuyama
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Publication number: 20220193619Abstract: A method for producing permselective membrane includes preparing a support membrane having selective permeability and a lipid membrane containing a channel substance, the lipid membrane being formed on a surface of the support membrane. Excess lipids are removed with an acid or an alkali, and the support membrane has a permeation flux of 20 L/(m2·h) or more and a desalination capacity of 1% to 20% at a pressure of 0.1 MPa.Type: ApplicationFiled: March 9, 2022Publication date: June 23, 2022Inventors: Takahiro KAWAKATSU, Hideto MATSUYAMA, Daisuke SAEKI, Wakana MIYASHITA
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Publication number: 20220134275Abstract: An air purifying system includes: a carbon dioxide remover including first and second spaces partitioned by a gas permeable membrane with 50 nm or less diameter micropores; a feed passage leading to-be-purified air from a room to the first space; a supply passage supplying clean gas having lower carbon dioxide and higher oxygen concentrations than the to-be-purified air to the second space; a discharge passage discharging, from the second space, mixed gas; a return passage leading purified air from the first space into the room, the purified air resulting from removing carbon dioxide from the to-be-purified air; and adjusting equipment adjusting a gas pressure in the first and second spaces to be substantially equal to each other. The to-be-purified air flows in the first space along a surface of the gas permeable membrane, and the clean gas flows in the second space along a surface of the gas permeable membrane.Type: ApplicationFiled: January 24, 2020Publication date: May 5, 2022Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Katsuya UMEMOTO, Kazuhiro OKUMURA, Kouji FUKUMOTO, Tomoaki UMEMURA, Hideto MATSUYAMA, Eiji KAMIO
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Publication number: 20220127293Abstract: To provide a liquid metal complex having an oxygen absorbing ability, containing a cobalt-acacen complex or a derivative thereof, and an ionic liquid in which an ionic ligand having an amine structure and a counter ion thereof are paired, in which the cobalt-acacen complex or the derivative thereof is expressed by general formula (1): and the liquid metal complex has a structure in which the amine structure of the ionic ligand is axially coordinated with a cobalt atom of the cobalt-acacen complex or the derivative thereof.Type: ApplicationFiled: March 4, 2020Publication date: April 28, 2022Inventors: Yasunori NAKANISHI, Hideto MATSUYAMA, Eiji KAMIO, Atsushi MATSUOKA
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Patent number: 11224844Abstract: A porous membrane includes a modacrylic copolymer. The modacrylic copolymer includes, with respect to 100 parts by mass of all structural units constituting the modacrylic copolymer, 15 to 85 parts by mass of a structural unit derived from acrylonitrile, 15 to 85 parts by mass of a structural unit derived from at least one halogen-containing monomer selected from the group consisting of vinyl halide and vinylidene halide, and 0 to 10 parts by mass of a structural unit derived from a vinyl monomer having an ionic substituent. The porous membrane can be produced by preparing a modacrylic copolymer solution by dissolving the modacrylic copolymer in a solvent, and bringing the modacrylic copolymer solution into contact with a non-solvent for the modacrylic copolymer such that the modacrylic copolymer solution is solidified.Type: GrantFiled: December 13, 2019Date of Patent: January 18, 2022Assignee: KANEKA CORPORATIONInventors: Yusuke Hirai, Tadashi Kamada, Hideto Matsuyama, Li-Feng Fang, Sheng-Yao Wang
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Publication number: 20210362100Abstract: [Problem to be Solved] Provided is a polyvinylidene fluoride resin-made porous membrane having excellent hydrophilicity, permeability, and fouling resistance and having suppressed elution of vinyl ether copolymer by using a small amount of vinyl ether copolymer. [Means to Solve the Problem] The porous membrane according to the invention comprises a polyvinylidene fluoride resin as a matrix material and a vinyl ether copolymer, wherein the vinyl ether copolymer is a copolymer of an oxyethylene group-containing vinyl ether monomer and a hydrocarbon group-containing vinyl ether monomer.Type: ApplicationFiled: December 25, 2019Publication date: November 25, 2021Applicants: MARUZEN PETROCHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Masakazu NISHIYA, Yasuhiko HASEGAWA, Hideto MATSUYAMA
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Publication number: 20210261741Abstract: The present invention relates to a method for producing an ionic liquid-containing structure, including: an inorganic network structure forming step of forming a network structure of an inorganic compound in the presence of an ionic liquid; and a polymer network structure forming step of forming a polymer network structure of a prepolymer and a crosslinking agent in the presence of the ionic liquid.Type: ApplicationFiled: August 29, 2019Publication date: August 26, 2021Inventors: Naomichi KIMURA, Yuri ITO, Terukazu IHARA, Eiji KAMIO, Hideto MATSUYAMA, Masayuki KINOSHITA, Tomoki YASUI
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Publication number: 20210253450Abstract: A draw solute for forward osmosis membrane process, comprising an addition polymer obtained by addition polymerization of an alkylene oxide having 2 to 10 carbon atoms to an amine compound.Type: ApplicationFiled: August 28, 2019Publication date: August 19, 2021Applicants: Nippon Shokubai Co., Ltd., National University Corporation Kobe UniversityInventors: Koji Koyama, Yuki Miyoshi, Hideto Matsuyama, Asuka Inada
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Publication number: 20210237004Abstract: The objective of the present invention is to provide a composite separation membrane which is excellent in not only a liquid permeable performance and a separation performance relatively but also a durability and which is particularly useful as a membrane for liquid treatment, and a method for treating a liquid by using the composite separation membrane. The composite separation membrane according to the present invention is characterized in comprising a supporting base material and a complex layer, wherein the complex layer is placed on the supporting base material, the complex layer comprises oxidized metal nanosheets, graphene oxide and an alkanolamine, and at least one of the alkanolamine is present between the oxidized metal nanosheets.Type: ApplicationFiled: January 29, 2019Publication date: August 5, 2021Applicant: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Keizo NAKAGAWA, Misato KUNIMATSU, Tomohiro SERA, Takuji SHINTANI, Tomohisa YOSHIOKA, Hideto MATSUYAMA
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Publication number: 20210086140Abstract: Providing a membrane-forming solution suitable for producing a separation membrane such as a hollow fiber membrane and a flat membrane. A membrane-forming solution including triacetylcellulose having an acetyl group substitution degree of 2.7 or higher, a good solvent for thermally induced phase separation and a poor solvent for thermally induced phase separation, wherein the good solvent is capable of heat-dissolving the triacetylcellulose (at a solid content concentration of 25 mass %), and the poor solvent is incapable of dissolving the triacetylcellulose up to the heat dissolution temperature of the good solvent, wherein both the good solvent and the poor solvent are included so as to enable phase separation of the heat-dissolved triacetylcellulose solution while the heat-dissolved triacetylcellulose solution is cooled to room temperature (from 20 to 30° C.Type: ApplicationFiled: July 24, 2018Publication date: March 25, 2021Applicants: DAICEL CORPORATION, NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Hideto MATSUYAMA, Sungil JEON, Shota TAKAO, Toyozo HAMADA
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Publication number: 20210046432Abstract: A permselective membrane is provided with a support membrane having selective permeability, and a coating layer formed on a surface of the support membrane and including a lipid bilayer membrane containing a channel substance. The support membrane includes a polyamide membrane providing permeation flux of 35 L/(m2·h) or more at a pressure of 0.1 MPa. A method for producing the permselective membrane includes a step of treating a polyamide membrane with chlorine to produce the support membrane and a step of forming the lipid bilayer membrane on the support membrane.Type: ApplicationFiled: February 25, 2019Publication date: February 18, 2021Inventors: Takahiro KAWAKATSU, Yu FUJIMURA, Hideto MATSUYAMA, Daisuke SAEKI, Kenta OKUNO
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Publication number: 20200362140Abstract: An object of the present invention is to provide a method which can produce an ionic liquid-containing network structure with high productivity. A method for producing an ionic liquid-containing structure, which includes an inorganic particle network structure forming step of forming a network structure by inorganic particles in the presence of an ionic liquid, and a polymer network structure forming step of forming a network structure by polymerization of a monomer component containing at least a polar group-containing monomer in the presence of the ionic liquid is provided.Type: ApplicationFiled: November 21, 2018Publication date: November 19, 2020Inventors: Naomichi KIMURA, Yuri ITO, Terukazu IHARA, Akira SHIMAZU, Hideto MATSUYAMA, Eiji KAMIO, Tomoki YASUI
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Patent number: 10814269Abstract: A liquid having oxygen absorbing ability, comprising a cobalt-salen complex or a derivative thereof and an ionic liquid formed from an anion having an amine structure and a cation of an aliphatic quaternary phosphonium or ammonium having alkyl chains with each 2-20 carbon atoms, wherein the anion of the ionic liquid is coordinated to a cobalt ion of the cobalt-salen complex or a derivative thereof.Type: GrantFiled: January 19, 2017Date of Patent: October 27, 2020Assignees: SHARP KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORP. KOBE UNIVERSITYInventors: Yasunori Nakanishi, Hideto Matsuyama, Eiji Kamio, Atsushi Matsuoka
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Publication number: 20200316529Abstract: A method of producing a DN gel membrane includes a step (1) including producing a 1st gel membrane by (i) casting, on a substrate, a solution containing an ionic liquid A and an ionic liquid B, the ionic liquid A being made up of 1st monomers each of which has a polymerizable functional group and (ii) polymerizing the 1st monomers; and a step (2) including producing the DN gel membrane by (i) immersing the 1st gel membrane in a solution containing 2nd monomers which are different from the 1st monomers and (ii) polymerizing the 2nd monomers. This method allows for continuous-type production which is suitable for industrial mass production of DN gel membranes or acid gas separation membranes.Type: ApplicationFiled: May 29, 2017Publication date: October 8, 2020Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Shohei KASAHARA, Yudai OTA, Hideto MATSUYAMA, Eiji KAMIO, Farhad MOGHADAM
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Publication number: 20200114318Abstract: A porous membrane includes a modacrylic copolymer. The modacrylic copolymer includes, with respect to 100 parts by mass of all structural units constituting the modacrylic copolymer, 15 to 85 parts by mass of a structural unit derived from acrylonitrile, 15 to 85 parts by mass of a structural unit derived from at least one halogen-containing monomer selected from the group consisting of vinyl halide and vinylidene halide, and 0 to 10 parts by mass of a structural unit derived from a vinyl monomer having an ionic substituent. The porous membrane can be produced by preparing a modacrylic copolymer solution by dissolving the modacrylic copolymer in a solvent, and bringing the modacrylic copolymer solution into contact with a non-solvent for the modacrylic copolymer such that the modacrylic copolymer solution is solidified.Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Applicant: KANEKA CORPORATIONInventors: Yusuke Hirai, Tadashi Kamada, Hideto Matsuyama, Li-Feng Fang, Sheng-Yao Wang
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Patent number: 10589232Abstract: A forward osmosis membrane characterized in that a thin membrane layer having the performance of a semi-permeable membrane is laminated on a polyketone support layer.Type: GrantFiled: August 10, 2015Date of Patent: March 17, 2020Assignees: ASAHI KASEI KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Toru Morita, Masayuki Kaneda, Masahiro Yasukawa, Hideto Matsuyama