Patents by Inventor Tomohiro Asai
Tomohiro Asai 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: 20240148664Abstract: Provided are a lipid and a composition that can effectively deliver an introduction compound such as a nucleic acid to a target cell, tissue, or the like in vivo.Type: ApplicationFiled: April 11, 2022Publication date: May 9, 2024Applicants: SOGO PHARMACEUTICAL CO., LTD., SHIZUOKA PREFECTURAL UNIVERSITY CORPORATIONInventors: Tetsuo KOANA, Jun HAYASHIDA, Toshinori TAKAKI, Yohei TANAKA, Nahoko OZAKI, Tomohiro ASAI
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Patent number: 11953206Abstract: Provided is a burner of double tube structure including an outer tube and an inner tube. The inner tube includes a tip-side support portion fixed on the outer tube, a base-side support portion fixed on the outer tube, a main body portion supported by the tip-side support portion, bellows interposed between the main body portion and the base-side support portion, and a bulkhead member attached at a position between the tip-side support portion and the base-side support portion. Between an outer peripheral surface of the bulkhead member and an inner peripheral surface of the outer tube, a second gap smaller than a first gap between an outermost peripheral surface of the bellows and the inner peripheral surface of the outer tube is interposed.Type: GrantFiled: September 16, 2022Date of Patent: April 9, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Mitsuhiro Karishuku, Satoshi Dodo, Yoshitaka Hirata, Tomohiro Asai, Shohei Yoshida, Yasuhiro Akiyama
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Patent number: 11859822Abstract: A burner assembly includes a plurality of burners for mixing fuel and air. Each of the plurality of burners includes: a fuel nozzle for injecting the fuel; a mixing passage supplied with the fuel and the air; and a support portion connecting a passage wall of the mixing passage and the fuel nozzle to support the fuel nozzle.Type: GrantFiled: September 27, 2022Date of Patent: January 2, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shinichi Fukuba, Satoshi Takiguchi, Keisuke Miura, Tomohiro Asai, Kenji Miyamoto, Tomo Kawakami
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Patent number: 11746704Abstract: A hydrogen content fuel can be stably ignited using a gaseous fuel that does not contain hydrogen and dispersibility of the hydrogen content fuel is enhanced. A gas turbine combustor including a burner including: a startup fuel pipe in which a startup fuel circulates; a first main fuel pipe in which a main fuel circulates, a second main fuel pipe in which the main fuel circulates; a fuel mixer to which the startup fuel pipe and the first main fuel pipe are connected; an inner fuel nozzle to which the fuel mixer is connected; a plurality of outer fuel nozzles to which the second main fuel pipe is connected; a startup fuel control valve provided in the startup fuel pipe; a first fuel control valve provided in the first main fuel pipe; and a second fuel control valve provided in the second main fuel pipe.Type: GrantFiled: September 29, 2020Date of Patent: September 5, 2023Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tomohiro Asai, Shohei Yoshida, Yoshitaka Hirata, Akinori Hayashi, Yasuhiro Akiyama, Yoshinori Matsubara
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Publication number: 20230167976Abstract: Provided is a burner of double tube structure including an outer tube and an inner tube. The inner tube includes a tip-side support portion fixed on the outer tube, a base-side support portion fixed on the outer tube, a main body portion supported by the tip-side support portion, bellows interposed between the main body portion and the base-side support portion, and a bulkhead member attached at a position between the tip-side support portion and the base-side support portion. Between an outer peripheral surface of the bulkhead member and an inner peripheral surface of the outer tube, a second gap smaller than a first gap between an outermost peripheral surface of the bellows and the inner peripheral surface of the outer tube is interposed.Type: ApplicationFiled: September 16, 2022Publication date: June 1, 2023Applicant: Mitsubishi Heavy Industries, Ltd.Inventors: Mitsuhiro KARISHUKU, Satoshi DODO, Yoshitaka HIRATA, Tomohiro ASAI, Shohei YOSHIDA, Yasuhiro AKIYAMA
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Publication number: 20230022725Abstract: A burner assembly includes a plurality of bumers for mixing fuel and air. Each of the plurality of burners includes: at least one fuel nozzle for injecting the fuel; and a mixing passage into which the fuel injected from the at least one fuel nozzle and the air are introduced. Each fuel nozzle includes a protruding portion protruding upstream of an inlet of the mixing passage in a flow direction of the air. Each fuel nozzle includes a fuel injection hole formed on a side surface of the protruding portion. At least a portion of a first air passage for flowing the air is formed inside the protruding portion. The first air passage includes: an inlet formed on a surface of the protruding portion on an upstream side of the fuel injection hole in the flow direction of the air; and an outlet formed on a side surface of the protruding portion or a passage wall of the mixing passage. At least a portion of the outlet is formed downstream of the fuel injection hole in the flow direction of the air.Type: ApplicationFiled: September 27, 2022Publication date: January 26, 2023Inventors: Shinichi FUKUBA, Kenji MIYAMOTO, Keisuke MIURA, Tomohiro ASAI, Tomo KAWAKAMI, Kenta TANIGUCHI
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Publication number: 20230014495Abstract: A burner assembly includes a plurality of burners for mixing fuel and air. Each of the plurality of burners includes: a fuel nozzle for injecting the fuel; a mixing passage supplied with the fuel and the air; and a support portion connecting a passage wall of the mixing passage and the fuel nozzle to support the fuel nozzle.Type: ApplicationFiled: September 27, 2022Publication date: January 19, 2023Inventors: Shinichi FUKUBA, Satoshi TAKIGUCHI, Keisuke MIURA, Tomohiro ASAI, Kenji MIYAMOTO, Tomo KAWAKAMI
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Publication number: 20220381184Abstract: A burner assembly includes a plurality of burners for mixing fuel and air. Each of the plurality of burners includes: at least one fuel nozzle for injecting the fuel; and a mixing passage into which the fuel injected from the at least one fuel nozzle and the air are introduced. Each of the at least one fuel nozzle includes a protruding portion protruding upstream of an inlet of the mixing passage in a flow direction of the air. Each of the at least one fuel nozzle includes at least one fuel injection hole formed on a side surface of the protruding portion. A top surface of the protruding portion includes a convex curved surface.Type: ApplicationFiled: August 12, 2022Publication date: December 1, 2022Inventors: Shinichi FUKUBA, Satoshi TAKIGUCHI, Keisuke MIURA, Tomohiro ASAI, Kenji MIYAMOTO, Tomo KAWAKAMI, Kenta TANIGUCHI, Katsuyoshi TADA
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Patent number: 11339969Abstract: Adhesion of particulate matters to the burner accompanying combustion in a lean-combustion gas turbine combustor is suppressed, and the structural reliability is improved. In a gas turbine combustor including: a tubular liner that forms a combustion chamber; and a burner including an air hole plate that is arranged at an inlet of the liner and includes a plurality of air holes for guiding compressed air to the combustion chamber, and a plurality of fuel nozzles that are arranged on a side opposite to the combustion chamber with the air hole plate being sandwiched therebetween, the plurality of fuel nozzles each injecting a fuel toward a corresponding air hole, the air holes and the fuel nozzles forming a plurality of concentric annular lines, a plurality of small holes having opening diameters smaller than those of the air holes are provided through the air hole plate such that the plurality of small holes are positioned in an inner area of an innermost annular line of the air holes.Type: GrantFiled: September 29, 2020Date of Patent: May 24, 2022Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tomohiro Asai, Shohei Yoshida, Yoshitaka Hirata, Akinori Hayashi, Yasuhiro Akiyama
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Patent number: 11209163Abstract: A gas turbine combustor that mixes fuel with compressed air guided from a compressor to burn the fuel mixed with the compressed air to generate a combustion gas and supplies the generated combustion gas to a turbine is provided with: an inner cylinder forming a combustion chamber thereinside; an outer cylinder that covers the inner cylinder and forms, between the outer cylinder and the inner cylinder, a cylindrical outer peripheral flow path through which the compressed air flows; an end cover closing the end of the outer cylinder on an opposite side from a side the turbine is located; and a turn guide provided at the end on the end cover side of the inner cylinder, protruding from the outer peripheral surface of the inner cylinder toward the outer cylinder and smoothly connected to the inner peripheral surface of the inner cylinder.Type: GrantFiled: December 18, 2019Date of Patent: December 28, 2021Assignee: Mitsubishi Power, Ltd.Inventors: Tomoki Uruno, Keita Yunoki, Kazuki Abe, Tomohiro Asai, Mitsuhiro Karishuku, Tatsuya Hagita, Shohei Yoshida
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Patent number: 11034708Abstract: An object is to provide a lipid particle that is not positively charged at a pH of the body fluid (typically in the neutral range), and that enables efficient onset of the effect of a medicinal substance encapsulated in the lipid particle; and to provide a lipid for forming the lipid particle. The object is achieved by the phospholipid represented by formula (1), and a lipid particle containing the phospholipid: wherein R1 and R2 are identical or different, and represent a chain hydrocarbon group, m represents 1 or 2, n represents 1 or 2, and p represents an integer of 1 to 4.Type: GrantFiled: March 1, 2018Date of Patent: June 15, 2021Assignees: NIPPON FINE CHEMICAL CO., LTD., SHIZUOKA PREFECTURAL UNIVERSITY CORPORATIONInventors: Tomohiro Asai, Naoto Oku, Noriyuki Maeda, Naofumi Fukata, Koji Tomita
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Publication number: 20210095849Abstract: To suppress occurrence of combustion oscillation in a lean-combustion gas turbine combustor, and to improve the structural reliability. In a gas turbine combustor including: a tubular liner that forms a combustion chamber; and a burner having an air hole plate that is arranged at an inlet of the liner and that is provided with a plurality of air holes for guiding compressed air to the combustion chamber, and a plurality of fuel nozzles arranged on a side opposite to the combustion chamber with the air hole plate being sandwiched therebetween, the plurality of fuel nozzles each injecting a fuel toward a corresponding air hole, the air holes and the fuel nozzles forming a plurality of concentric annular lines, an orifice is provided on a fuel flow passage of each of the plurality of fuel nozzles, the plurality of fuel nozzles are grouped into a plurality of nozzle groups, and axial positions of the orifices are different between the nozzle groups.Type: ApplicationFiled: September 29, 2020Publication date: April 1, 2021Inventors: Tomohiro ASAI, Shohei YOSHIDA, Yoshitaka HIRATA, Yasuhiro AKIYAMA
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Publication number: 20210095850Abstract: Adhesion of particulate matters to the burner accompanying combustion in a lean-combustion gas turbine combustor is suppressed, and the structural reliability is improved. In a gas turbine combustor including: a tubular liner that forms a combustion chamber; and a burner including an air hole plate that is arranged at an inlet of the liner and includes a plurality of air holes for guiding compressed air to the combustion chamber, and a plurality of fuel nozzles that are arranged on a side opposite to the combustion chamber with the air hole plate being sandwiched therebetween, the plurality of fuel nozzles each injecting a fuel toward a corresponding air hole, the air holes and the fuel nozzles forming a plurality of concentric annular lines, a plurality of small holes having opening diameters smaller than those of the air holes are provided through the air hole plate such that the plurality of small holes are positioned in an inner area of an innermost annular line of the air holes.Type: ApplicationFiled: September 29, 2020Publication date: April 1, 2021Inventors: Tomohiro ASAI, Shohei YOSHIDA, Yoshitaka HIRATA, Akinori HAYASHI, Yasuhiro AKIYAMA
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Publication number: 20210095599Abstract: A hydrogen content fuel can be stably ignited using a gaseous fuel that does not contain hydrogen and dispersibility of the hydrogen content fuel is enhanced. A gas turbine combustor including a burner including: a startup fuel pipe in which a startup fuel circulates; a first main fuel pipe in which a main fuel circulates, a second main fuel pipe in which the main fuel circulates; a fuel mixer to which the startup fuel pipe and the first main fuel pipe are connected; an inner fuel nozzle to which the fuel mixer is connected; a plurality of outer fuel nozzles to which the second main fuel pipe is connected; a startup fuel control valve provided in the startup fuel pipe; a first fuel control valve provided in the first main fuel pipe; and a second fuel control valve provided in the second main fuel pipe.Type: ApplicationFiled: September 29, 2020Publication date: April 1, 2021Inventors: Tomohiro ASAI, Shohei YOSHIDA, Yoshitaka HIRATA, Akinori HAYASHI, Yasuhiro AKIYAMA, Yoshinori MATSUBARA
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Patent number: 10794296Abstract: The gas turbine combustor and the operation method thereof are designed to minimize visualization of exhaust gas from the gas turbine upon switching of the gas turbine fuel from the oil fuel to the gas fuel. Upon switching of the combustion by the pilot burner from the oil burning to the gas burning, the gas fuel is supplied to the main burners so as to start the gas burning. Then the gas fuel is supplied to the pilot burner to start the gas burning.Type: GrantFiled: October 23, 2017Date of Patent: October 6, 2020Assignee: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Yasuhiro Akiyama, Mitsuhiro Karishuku, Keita Naito, Kanetsugu Nakamura, Satoshi Dodo, Tomohiro Asai, Yoshitaka Hirata, Akinori Hayashi
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Publication number: 20200200389Abstract: A gas turbine combustor that mixes fuel with compressed air guided from a compressor to burn the fuel mixed with the compressed air to generate a combustion gas and supplies the generated combustion gas to a turbine is provided with: an inner cylinder forming a combustion chamber thereinside; an outer cylinder that covers the inner cylinder and forms, between the outer cylinder and the inner cylinder, a cylindrical outer peripheral flow path through which the compressed air flows; an end cover closing the end of the outer cylinder on an opposite side from a side the turbine is located; and a turn guide provided at the end on the end cover side of the inner cylinder, protruding from the outer peripheral surface of the inner cylinder toward the outer cylinder and smoothly connected to the inner peripheral surface of the inner cylinder.Type: ApplicationFiled: December 18, 2019Publication date: June 25, 2020Inventors: Tomoki URUNO, Keita YUNOKI, Kazuki ABE, Tomohiro ASAI, Mitsuhiro KARISHUKU, Tatsuya HAGITA, Shohei YOSHIDA
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Publication number: 20200072466Abstract: The present invention provides a gas turbine combustor which reduces NOx emissions for a hydrogen-containing fuel, is improved in reliability and realizes stable operation. The gas turbine combustor of the present invention includes a combustion chamber which burns a fuel and air, an air hole plate which is located on an upstream side of the combustion chamber and has air holes which are concentrically arranged plurally in line and plurally in number, and fuel nozzles which are arranged plurally in line and plurally in number, and a fuel nozzle inner wall has a fuel nozzle tapered shape which extends in an outer circumferential direction on a leading end part of the fuel nozzle.Type: ApplicationFiled: August 6, 2019Publication date: March 5, 2020Inventors: Yasuhiro AKIYAMA, Yuki KAMIKAWA, Tomohiro ASAI, Mitsuhiro KARISHUKU, Tatsuya HAGITA, Yoshinori MATSUBARA
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Patent number: 10571127Abstract: The gas turbine combustor includes a swirler lip on the air hole plate periphery, protruding toward a chamber, and a spring seal in an area for fitting the liner and the plate/lip. The spring seal has an air hole for passage of part of the combustion air introduced in the gap between the outer periphery of the air hole plate and the liner. The swirler lip has an air hole which introduces part of the combustion air passing through the spring seal air hole into the chamber. The liner has an air hole facing the spring seal air hole, to introduce part of air from outside the liner into the gap between the outer periphery of the air hole plate and the liner. A turn guide for rectifying a combustion air flow is provided at the liner end portion on the side for fitting the liner and air hole plate.Type: GrantFiled: October 23, 2017Date of Patent: February 25, 2020Assignee: Mitsubishi Hitachi Power Sytems, Ltd.Inventors: Keisuke Miura, Yasuhiro Akiyama, Tomohiro Asai, Kazuki Abe, Mitsuhiro Karishuku, Satoshi Dodo, Akinori Hayashi, Yoshitaka Hirata, Noboru Okuyama
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Publication number: 20200031853Abstract: An object is to provide a lipid particle that is not positively charged at a pH of the body fluid (typically in the neutral range), and that enables efficient onset of the effect of a medicinal substance encapsulated in the lipid particle; and to provide a lipid for forming the lipid particle. The object is achieved by the phospholipid represented by formula (1), and a lipid particle containing the phospholipid: wherein R1 and R2 are identical or different, and represent a chain hydrocarbon group, m represents 1 or 2, n represents 1 or 2, and p represents an integer of 1 to 4.Type: ApplicationFiled: March 1, 2018Publication date: January 30, 2020Applicants: NIPPON FINE CHEMICAL CO., LTD., SHIZUOKA PREFECTURAL UNIVERSITY CORPORATIONInventors: Tomohiro ASAI, Naoto OKU, Noriyuki MAEDA, Naofumi FUKATA, Koji TOMITA
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Patent number: 10408457Abstract: A gas turbine combustor includes a plurality of fuel nozzles, an air hole plate, a plate lip that covers an outer circumference side of the air hole plate, and an outer channel that supplies compressed air to an outer circumferential part of a portion on the plate lip side of the combustion chamber. The outer circumferential surface of the air hole plate includes a first surface joined to the plate lip and a second surface located further on the radial direction inner side of the air hole plate than the first surface to form a space between the second surface and the inner circumferential surface of the plate lip. A communicating hole that communicates the outer channel and the space is provided in the plate lip.Type: GrantFiled: November 8, 2016Date of Patent: September 10, 2019Assignee: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Yasuhiro Akiyama, Akinori Hayashi, Tomohiro Asai