Patents by Inventor Yasato Kiyohara
Yasato Kiyohara 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: 11338242Abstract: Provided is a method for removing CO2 comprising: supplying a gas to be processed containing CO2, N2 and O2 to a feed side of a CO2/O2 selective permeation membrane within a temperature range of 15° C. to 50° C.Type: GrantFiled: December 27, 2017Date of Patent: May 24, 2022Assignees: Renaissance Energy Research Corporation, Japan Aerospace Exploration AgencyInventors: Osamu Okada, Masaaki Teramoto, Tamotsu Nonouchi, Nobuaki Hanai, Junya Miyata, Yasato Kiyohara, Masato Sakurai, Shinichi Furukawa
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Publication number: 20210008491Abstract: Provided is a method for removing CO2 comprising: supplying a gas to be processed containing CO2, N2 and O2 to a feed side of a CO2/O2 selective permeation membrane within a temperature range of 15° C. to 50° C.Type: ApplicationFiled: December 27, 2017Publication date: January 14, 2021Applicants: Renaissance Energy Research Corporation, Japan Aerospace Exploration AgencyInventors: Osamu OKADA, Masaaki TERAMOTO, Tamotsu NONOUCHI, Nobuaki HANAI, Junya MIYATA, Yasato KIYOHARA, Masato SAKURAI, Shinichi FURUKAWA
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Patent number: 10858248Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.Type: GrantFiled: April 27, 2018Date of Patent: December 8, 2020Assignee: RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Junya Miyata, Yasato Kiyohara, Sayaka Ishii, Megumi Nagano
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Patent number: 10744454Abstract: Provided are a CO2 gas separation membrane, a method for manufacturing the same, and a carbon dioxide gas separation membrane module including the same, the CO2 gas separation membrane including: a first layer (A) containing at least one alkali metal compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate and an alkali metal hydroxide, and a first resin in which a polymer having a carboxyl group has been crosslinked; a second layer (B) containing at least one of the alkali metal compounds, and a second resin having a structural unit derived from a vinyl ester of a fatty acid; and a hydrophobic porous membrane (C).Type: GrantFiled: November 17, 2015Date of Patent: August 18, 2020Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara
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Patent number: 10507434Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.Type: GrantFiled: August 6, 2015Date of Patent: December 17, 2019Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara, Atsushi Yamamoto
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Patent number: 10232319Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.Type: GrantFiled: August 6, 2015Date of Patent: March 19, 2019Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara, Atsushi Yamamoto
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Publication number: 20180244520Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.Type: ApplicationFiled: April 27, 2018Publication date: August 30, 2018Applicant: RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: OSAMU OKADA, NOBUAKI HANAI, PENG YAN, JUNYA MIYATA, YASATO KIYOHARA, SAYAKA ISHII, MEGUMI NAGANO
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Patent number: 9981847Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.Type: GrantFiled: June 1, 2016Date of Patent: May 29, 2018Assignee: RENAISSANCE ENERGY RESARCH CORPORATIONInventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Junya Miyata, Yasato Kiyohara, Sayaka Ishii, Megumi Nagano
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Publication number: 20170333833Abstract: Provided are a CO2 gas separation membrane, a method for manufacturing the same, and a carbon dioxide gas separation membrane module including the same, the CO2 gas separation membrane including: a first layer (A) containing at least one alkali metal compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate and an alkali metal hydroxide, and a first resin in which a polymer having a carboxyl group has been crosslinked; a second layer (B) containing at least one of the alkali metal compounds, and a second resin having a structural unit derived from a vinyl ester of a fatty acid; and a hydrophobic porous membrane (C).Type: ApplicationFiled: November 17, 2015Publication date: November 23, 2017Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Yudai OTA, Yoshihito OKUBO, Osamu OKADA, Nobuaki HANAI, Peng YAN, Yasato KIYOHARA
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Publication number: 20170232398Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.Type: ApplicationFiled: August 6, 2015Publication date: August 17, 2017Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Yudai OTA, Yoshihito OKUBO, Osamu OKADA, Nobuaki HANAI, Peng YAN, Yasato KIYOHARA, Atsushi YAMAMOTO
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Publication number: 20160272494Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.Type: ApplicationFiled: June 1, 2016Publication date: September 22, 2016Applicant: Renaissance Energy Research CorporationInventors: Osamu OKADA, Nobuaki HANAI, Peng YAN, Junya MIYATA, Yasato KIYOHARA, Sayaka ISHII, Megumi NAGANO
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Patent number: 9381464Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.Type: GrantFiled: October 1, 2013Date of Patent: July 5, 2016Assignee: RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Junya Miyata, Yasato Kiyohara, Sayaka Ishii, Megumi Nagano
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Patent number: 9242206Abstract: In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing at least carbon dioxide, nitrogen and water vapor, the energy utilization efficiency thereof is improved. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively. When the second mixture gas is supplied, the second separation membrane 34 separates water vapor that permeates through the second separation membrane 34 by allowing water vapor to permeate selectively.Type: GrantFiled: June 11, 2014Date of Patent: January 26, 2016Assignee: RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: Osamu Okada, Masaaki Teramoto, Eiji Kamio, Nobuaki Hanai, Yasato Kiyohara
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Publication number: 20150151243Abstract: Provided is a facilitated CO2 transport membrane having an improved CO2 permeance and an improved CO2/H2 selectivity. The facilitated CO2 transport membrane includes a separation-functional membrane that includes a hydrophilic polymer gel membrane containing a CO2 carrier and a CO2 hydration catalyst. Further preferably, the CO2 hydration catalyst at least has catalytic activity at a temperature of 100° C. or higher, has a melting point of 200° C. or higher, or is soluble in water.Type: ApplicationFiled: October 1, 2013Publication date: June 4, 2015Applicant: Renaissance Energy Research CorporationInventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Junya Miyata, Yasato Kiyohara, Sayaka Ishii, Megumi Nagano
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Publication number: 20140290479Abstract: In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing at least carbon dioxide, nitrogen and water vapor, the energy utilization efficiency thereof is improved. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively. When the second mixture gas is supplied, the second separation membrane 34 separates water vapor that permeates through the second separation membrane 34 by allowing water vapor to permeate selectively.Type: ApplicationFiled: June 11, 2014Publication date: October 2, 2014Applicant: RENAISSANCE ENERGY RESEARCH CORPORATIONInventors: OSAMU OKADA, MASAAKI TERAMOTO, EIJI KAMIO, NOBUAKI HANAI, YASATO KIYOHARA
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Patent number: 8784531Abstract: In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing a predetermined major component gas, carbon dioxide, and water vapor, the energy utilization efficiency thereof is improved. Also, by utilizing the function of this gas separation apparatus, a membrane reactor and a hydrogen production apparatus exhibiting high energy utilization efficiency are provided. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied at a temperature of 100° C. or higher, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively.Type: GrantFiled: December 26, 2011Date of Patent: July 22, 2014Assignee: Renaissance Energy Research CorporationInventors: Osamu Okada, Masaaki Teramoto, Eiji Kamio, Nobuaki Hanai, Yasato Kiyohara
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Publication number: 20130287678Abstract: In a gas separation apparatus that separates carbon dioxide and water vapor from a first mixture gas containing a predetermined major component gas, carbon dioxide, and water vapor, the energy utilization efficiency thereof is improved. Also, by utilizing the function of this gas separation apparatus, a membrane reactor and a hydrogen production apparatus exhibiting high energy utilization efficiency are provided. The gas separation apparatus is constructed to include a first separation membrane 33 and a second separation membrane 34 that are made of different materials. When the first mixture gas is supplied at a temperature of 100° C. or higher, the first separation membrane 33 separates a second mixture gas containing carbon dioxide and water vapor that permeate through the first separation membrane by allowing carbon dioxide and water vapor to permeate selectively.Type: ApplicationFiled: December 26, 2011Publication date: October 31, 2013Applicant: Renaissance Energy CorporationInventors: Osamu Okada, Masaaki Teramoto, Eiji Kamio, Nobuaki Hanai, Yasato Kiyohara