Patents by Inventor Osamu Shibasaki
Osamu Shibasaki 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: 20220314161Abstract: According to one embodiment, a gas processing equipment includes an oxygen remover 2 that removes oxygen contained in exhaust gas G, and a gas processing device 3 that processes pretreated exhaust gas G (P), from which the oxygen has been removed by the oxygen remover 2, with a carbon dioxide absorbent solvent S as a treatment agent.Type: ApplicationFiled: March 15, 2022Publication date: October 6, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Daigo MURAOKA, Koshito FUJITA, Shinji MURAI, Hayato MORIGAKI, Osamu SHIBASAKI, Yasuhiro KATO, Satoshi SAITO, Takehiko MURAMATSU, Ryosuke SHIBATA, Yusuke HANDA
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Publication number: 20190035511Abstract: To effectively reduce the radioactivity concentration in reactor water. In an embodiment, a method of repairing a fuel assembly in a nuclear reactor, comprising: applying a compound containing at least one substance selected from the group consisting of TiO2, TiCl4, Ti(OH)4, TiF4, TiCl3, TiN, TiC, Ti(SO4)2, Ti3O5, Ti(NO3)4, Al3O3, Al(OH)3, AlCl3, Al(NO3)3, Al2(SO4)3, WO2, WO3, WC16, WF6, (NH4)10W12O41.5H2O, H2WO4 and H4WO5 to a surface of a fuel rod of the fuel assembly.Type: ApplicationFiled: July 25, 2018Publication date: January 31, 2019Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions CorporationInventors: Takahiro HARA, Osamu SHIBASAKI, Masato OKAMURA, Yusuke HORAYAMA
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Patent number: 10099345Abstract: According to one implementation, a blast treatment method includes: setting a blast treatment condition for a composite material to make a degree of activation on the surface of the composite material within an appropriate range, based on reference information; and manufacturing a blast treated product by the blast treatment of the composite material under the blast treatment condition set to make the degree of the activation within the appropriate range. The reference information shows a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition.Type: GrantFiled: August 18, 2015Date of Patent: October 16, 2018Assignee: SUBARU CORPORATIONInventors: Yoshihiko Kondo, Hirotsugu Takazawa, Shinya Matsuo, Tatsuo Nakahata, Osamu Shibasaki, Ryohei Ono
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Patent number: 10032531Abstract: A chemical solution injection system 30 of an embodiment includes: a chemical solution reservoir 31 that stores a chemical solution containing a depositing substance to deposit to a member in contact with cooling water for absorbing heat in a plant; a pipe 32 through which the chemical solution passes; a first heat exchanger and a second heat exchanger that exchange heat between the cooling water and the chemical solution; a cooling water pipe 49 which connects the heat exchangers in series and in which the cooling water passes; and a pump 34 that conveys the chemical solution. The temperature of the chemical solution in the chemical solution reservoir 31 is lower than that of the cooling water. The pipe 32 sequentially connects the chemical solution reservoir 31, the first heat exchanger, the second heat exchanger and the plant. The cooling water guided from the inside of the plant passes through the second heat exchanger and subsequently passes through the first heat exchanger.Type: GrantFiled: December 31, 2014Date of Patent: July 24, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Tetsuo Oosato, Seiji Yamamoto, Hiroyuki Arai, Osamu Shibasaki, Koji Negishi, Hiromichi Koga
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Patent number: 10006127Abstract: In a plant including a system which is provided with a steam generator 2, a turbine 3, 5, a condenser 6 and a heater 7 and in which non-deaerated water circulates, and a pipe, the steam generator 2, the heater 7 and 8 of the system which comes into contact with the non-deaerated water is deposited with a protective substance.Type: GrantFiled: July 26, 2011Date of Patent: June 26, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Osamu Shibasaki, Seiji Yamamoto, Hajime Hirasawa
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Patent number: 9969889Abstract: The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.Type: GrantFiled: April 21, 2015Date of Patent: May 15, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Osamu Shibasaki, Koji Negishi, Seiji Yamamoto, Hajime Hirasawa, Kenji Yamazaki, Tetsuji Kaneko
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Patent number: 9824782Abstract: A photocatalyst injection system including: a reactor primary system coolant collection section collecting a reactor primary system coolant containing a noble metal or noble metal ion from a reactor primary system; a photocatalyst addition section adding a photocatalyst to the collected reactor primary system coolant; an ultraviolet irradiation section irradiating, with ultraviolet rays, the coolant to which the photocatalyst has been added for producing, in the coolant, a noble metal-carrying photocatalyst in which the noble metal is carried on a surface of the photocatalyst; and a noble metal-carrying photocatalyst injection section injecting the coolant containing the noble metal-carrying photocatalyst into the reactor primary system.Type: GrantFiled: October 1, 2013Date of Patent: November 21, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Osamu Shibasaki, Koji Negishi, Seiji Yamamoto, Hiroyuki Arai, Yutaka Uruma
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Patent number: 9771482Abstract: The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.Type: GrantFiled: April 21, 2015Date of Patent: September 26, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Osamu Shibasaki, Koji Negishi, Seiji Yamamoto, Hajime Hirasawa, Kenji Yamazaki, Tetsuji Kaneko
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Patent number: 9758880Abstract: A method for controlling water chemistry in a power generation plant including a low-pressure feedwater heater (18), a deaerator (19), and a high-pressure feedwater heater (20) disposed sequentially along a feedwater pipe (16) from a condenser (15) to a steam generator or a boiler (11) to control the chemistry of feedwater guided to the steam generator or the boiler includes the steps of: injecting an oxidant through an oxidant injection line (31) into feedwater flowing through the feedwater pipe disposed downstream of the condenser in such a way that a dissolved oxygen concentration in the feedwater ranges from 3 to 100 ppb while the feedwater is maintained to be neutral to form an oxide film on surfaces of the feedwater pipe, the low-pressure feedwater heater, the deaerator, the high-pressure feedwater heater, and other structural members that come into contact with the feedwater; and injecting a deoxidant through a deoxidant injection line (35) into the feedwater flowing through the feedwater pipe disposedType: GrantFiled: March 9, 2010Date of Patent: September 12, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Toyoaki Miyazaki, Masato Okamura, Osamu Shibasaki, Hajime Hirasawa
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Publication number: 20160372219Abstract: A chemical solution injection system 30 of an embodiment includes: a chemical solution reservoir 31 that stores a chemical solution containing a depositing substance to deposit to a member in contact with cooling water for absorbing heat in a plant; a pipe 32 through which the chemical solution passes; a first heat exchanger and a second heat exchanger that exchange heat between the cooling water and the chemical solution; a cooling water pipe 49 which connects the heat exchangers in series and in which the cooling water passes; and a pump 34 that conveys the chemical solution. The temperature of the chemical solution in the chemical solution reservoir 31 is lower than that of the cooling water. The pipe 32 sequentially connects the chemical solution reservoir 31, the first heat exchanger, the second heat exchanger and the plant. The cooling water guided from the inside of the plant passes through the second heat exchanger and subsequently passes through the first heat exchanger.Type: ApplicationFiled: December 31, 2014Publication date: December 22, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Masato OKAMURA, Tetsuo Oosato, Seiji Yamamoto, Hiroyuki Arai, Osamu Shibasaki, Koji Negishi, Hiromichi Koga
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Patent number: 9410252Abstract: A method for injecting a corrosion inhibitor injecting an oxidant and an anticorrosive agent-pH adjusting agent complex including an anticorrosive agent and a pH adjusting agent adsorbed on a surface of the anticorrosive agent into high temperature water in contact with a surface of a metal structural material and irradiating the high temperature water with a radioactive ray or an ultraviolet ray, wherein the anticorrosive agent of the anticorrosive agent-pH adjusting agent complex has, on the surface of the anticorrosive agent, an active site where the pH adjusting agent reacts with the oxidant, and the pH adjusting agent present on the surface of the anticorrosive agent of the anticorrosive agent-pH adjusting agent complex and/or in the high temperature water is oxidized with the oxidant by the irradiation with the radioactive ray or the ultraviolet ray to change pH adjusting ability of the pH adjusting agent and shift a pH of the high temperature water to a neutral side, and thereby deposition of the anticType: GrantFiled: September 13, 2012Date of Patent: August 9, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Tetsuo Oosato, Kazuo Murakami, Seiji Yamamoto, Hiroyuki Arai, Hidehiro Urata, Hajime Hirasawa, Osamu Shibasaki, Koji Negishi
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Publication number: 20160059382Abstract: According to one implementation, a blast treatment method includes: setting a blast treatment condition for a composite material to make a degree of activation on the surface of the composite material within an appropriate range, based on reference information; and manufacturing a blast treated product by the blast treatment of the composite material under the blast treatment condition set to make the degree of the activation within the appropriate range. The reference information shows a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition.Type: ApplicationFiled: August 18, 2015Publication date: March 3, 2016Applicant: FUJI JUKOGYO KABUSHIKI KAISHAInventors: Yoshihiko KONDO, Hirotsugu TAKAZAWA, Shinya MATSUO, Tatsuo NAKAHATA, Osamu SHIBASAKI, Ryohei ONO
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Patent number: 9221978Abstract: A corrosion-resistant member has a composite titanium oxide film for reducing corrosion deposited on a surface of a construction material, where the composite titanium oxide film is represented by a molecular formula MTiO3 in which M is a transition element, and the corrosion-resistant member is preliminarily manufactured by depositing titanium oxide on the surface of the construction material, and the titanium oxide is subsequently or simultaneously subjected to high temperature treatment under existence of an ion of the transition metal.Type: GrantFiled: January 29, 2014Date of Patent: December 29, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Osamu Shibasaki, Seiji Yamamoto, Toyoaki Miyazaki
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Publication number: 20150299473Abstract: The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.Type: ApplicationFiled: April 21, 2015Publication date: October 22, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masato OKAMURA, Osamu SHIBASAKI, Koji NEGISHI, Seiji YAMAMOTO, Hajime HIRASAWA, Kenji YAMAZAKI, Tetsuji KANEKO
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Publication number: 20150299474Abstract: The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.Type: ApplicationFiled: April 21, 2015Publication date: October 22, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masato OKAMURA, Osamu SHIBASAKI, Koji NEGISHI, Seiji YAMAMOTO, Hajime HIRASAWA, Kenji YAMAZAKI, Tetsuji KANEKO
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Patent number: 9165689Abstract: The present invention provides an operation method of a plant which has a low-pressure feed water heater, a deaerator and a high-pressure feed water heater sequentially arranged in a feed water pipe reaching a steam generator from a condenser, and leads high-temperature feed water to the steam generator, wherein an oxidant is injected onto a surface of a structural material from an oxidant injection line in order to form a film that suppresses an elution of an element constituting the structural material such as the feed water pipe, the low-pressure feed water heater, the deaerator and the high-pressure feed water heater, which come in contact with the high-temperature feed water, and a corrosion suppression substance is further introduced from a corrosion suppression substance introduction line in order to deposit the corrosion suppression substance on a surface of the structural material in which corrosion accelerated by a flow of the feed water occurs.Type: GrantFiled: February 8, 2010Date of Patent: October 20, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Osamu Shibasaki, Masato Okamura, Seiji Yamamoto, Toyoaki Miyazaki, Kenji Yamazaki, Tetsuji Kaneko, Minoru Kobayashi
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Publication number: 20150243387Abstract: A photocatalyst injection system including: a reactor primary system coolant collection section collecting a reactor primary system coolant containing a noble metal or noble metal ion from a reactor primary system; a photocatalyst addition section adding a photocatalyst to the collected reactor primary system coolant; an ultraviolet irradiation section irradiating, with ultraviolet rays, the coolant to which the photocatalyst has been added for producing, in the coolant, a noble metal-carrying photocatalyst in which the noble metal is carried on a surface of the photocatalyst; and a noble metal-carrying photocatalyst injection section injecting the coolant containing the noble metal-carrying photocatalyst into the reactor primary system.Type: ApplicationFiled: October 1, 2013Publication date: August 27, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Osamu Shibasaki, Koji Negishi, Seiji Yamamoto, Hiroyuki Arai, Yutaka Uruma
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Patent number: 9062878Abstract: The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.Type: GrantFiled: November 16, 2010Date of Patent: June 23, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masato Okamura, Osamu Shibasaki, Koji Negishi, Seiji Yamamoto, Hajime Hirasawa, Kenji Yamazaki, Tetsuji Kaneko
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Patent number: 8877335Abstract: A corrosion-resistant member has a composite titanium oxide film for reducing corrosion deposited on a surface of a construction material, where the composite titanium oxide film is represented by a molecular formula MTiO3 in which M is a transition element, and the corrosion-resistant member is preliminarily manufactured by depositing titanium oxide on the surface of the construction material, and the titanium oxide is subsequently or simultaneously subjected to high temperature treatment under existence of an ion of the transition metal.Type: GrantFiled: March 26, 2010Date of Patent: November 4, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Masato Okamura, Osamu Shibasaki, Seiji Yamamoto, Toyoaki Miyazaki
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Patent number: 8859038Abstract: Provided is a method for monitoring corrosion in a power plant, including: forming a film with a composition of M1FeO3 (M1 is a trivalent or tetravalent metal) or M2Fe2O4 (M2 is a divalent metal) on the inner wall surface of an apparatus of the power plant; and maintaining the film stably by controlling the amount of introduction of oxygen into the apparatus commensurate with a temperature in the apparatus.Type: GrantFiled: August 29, 2011Date of Patent: October 14, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Osamu Shibasaki, Masato Okamura, Koji Negishi, Seiji Yamamoto, Toyoaki Miyazaki