Patents by Inventor Koichiro Hirayama
Koichiro Hirayama 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: 20230299326Abstract: A redox flow battery includes: a cell having a first chamber and a second chamber separated by a membrane; a first tank for storing a first electrolytic solution; a first circulation device for circulating the first electrolytic solution between the first chamber and the first tank; a second tank for storing a second electrolytic solution; and a second circulation device for circulating the second electrolytic solution between the second chamber and the second tank. Each of the first electrolytic solution and the second electrolytic solution contains an active material, and at least one of the active material contained in the first electrolytic solution or the active material contained in the second electrolytic solution is a quinone multimer in which a plurality of quinones are connected via an alkyl chain or a hydroquinone multimer in which a plurality of hydroquinones are connected an alkyl chain.Type: ApplicationFiled: June 2, 2021Publication date: September 21, 2023Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., NAGOYA DENKI EDUCATIONAL FOUNDATIONInventors: Koichiro Hirayama, Toshiyasu Kiyabu, Yasushi Morita, Tsuyoshi Murata, Aya Ito
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Publication number: 20220166045Abstract: The present invention addresses the problem of providing a redox flow battery that can be used more efficiently and for an extended period of time. This redox flow battery includes a cell in which two chambers are separated by a membrane, a cathode disposed in one chamber of the cell, an anode disposed in the other chamber of the cell, a cathode recirculating means for recirculating a cathode liquid to said one chamber of the cell and an anode recirculating means for recirculating an anode liquid to the other chamber of the cell, wherein the cathode liquid includes a cathode active material, a first mediator, and a second mediator of which an electric potential that generates a reaction is in contact at least with the first mediator.Type: ApplicationFiled: January 29, 2020Publication date: May 26, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Toshiyasu Kiyabu, Yoshinori Noguchi, Ikumi Watanabe, Koichiro Hirayama
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Patent number: 11325850Abstract: An apparatus is disclosed including a desulfurization device which removes sulfur oxides contained in boiler flue gas, a spray drying device which sprays desulfurization waste water discharged from the desulfurization device and which dries the waste water by introducing a drying gas, a flue gas supplying line L13 which returns, to a main flue L11, flue gas obtained after the desulfurization waste water is evaporated and dried, an alkaline agent supplying unit which adds an alkaline agent to a desulfurization waste water line L21, and a pH meter which measures the pH in the desulfurization waste water at locations before and after the alkaline agent supplying unit in the desulfurization waste water line L21, wherein the alkaline agent is added in accordance with a measurement result of a measured pH to cause the desulfurization waste water added with the alkaline agent to have a pH fall within a predetermined pH.Type: GrantFiled: March 27, 2018Date of Patent: May 10, 2022Assignee: MITSUBISHI POWER, LTD.Inventors: Naoyuki Kamiyama, Nobuyuki Ukai, Koichiro Hirayama, Satoru Sugita, Tetsu Ushiku, Toshihiro Fukuda
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Publication number: 20210016223Abstract: A treated water drying device 20 for vaporizing treated water by heat of a combustion gas, the device 20 including a housing 21, a combustion gas supply port 26 for supplying the combustion gas to the housing 21, a water supply portion 27 for vaporizing the treated water by bringing the treated water into contact with the combustion gas supplied to the housing 21, and an exhaust port 28 for discharging a water-containing gas including the vaporized treated water to an outside of the housing 21. The exhaust port 28 is disposed at a lowermost part of the housing 21 and opens in a direction crossing a vertical direction. The housing 21 has a bottom 22 including an inclined portion 23 formed toward the exhaust port 28.Type: ApplicationFiled: March 18, 2019Publication date: January 21, 2021Applicant: Mitsubishi Power, Ltd.Inventors: Koichiro Hirayama, Satoru Sugita, Seiji Kagawa, Toshihiro Fukuda
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Patent number: 10617996Abstract: A desulfurization apparatus includes a blowdown water line, an organic matter remover, an absorber, and a makeup water introducing line. The blowdown water line is for introducing boiler cooling tower blowdown water from a boiler cooling tower. The organic matter remover is disposed on the blowdown water line to remove organic matter in the boiler cooling tower blowdown water by activated carbon. The absorber is configured to absorb sulfur oxides in flue gas from a boiler. The makeup water introducing line is for introducing the boiler cooling tower blowdown water from which the organic matter has been removed as makeup water for the absorber.Type: GrantFiled: February 21, 2017Date of Patent: April 14, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Naoyuki Kamiyama, Koichiro Hirayama, Satoru Sugita, Yoshito Tanaka, Seiji Kagawa, Toshihiro Fukuda
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Publication number: 20200071207Abstract: An apparatus is disclosed including a desulfurization device which removes sulfur oxides contained in boiler flue gas, a spray drying device which sprays desulfurization waste water discharged from the desulfurization device and which dries the waste water by introducing a drying gas, a flue gas supplying line L13 which returns, to a main flue L11, flue gas obtained after the desulfurization waste water is evaporated and dried, an alkaline agent supplying unit which adds an alkaline agent to a desulfurization waste water line L21, and a pH meter which measures the pH in the desulfurization waste water at locations before and after the alkaline agent supplying unit in the desulfurization waste water line L21, wherein the alkaline agent is added in accordance with a measurement result of a measured pH to cause the desulfurization waste water added with the alkaline agent to have a pH fall within a predetermined pH.Type: ApplicationFiled: March 27, 2018Publication date: March 5, 2020Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Naoyuki Kamiyama, Nobuyuki Ukai, Koichiro Hirayama, Satoru Sugita, Tetsu Ushiku, Toshihiro Fukuda
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Publication number: 20190105604Abstract: A desulfurization apparatus includes a blowdown water line, an organic matter remover, an absorber, and a makeup water introducing line. The blowdown water line is for introducing boiler cooling tower blowdown water from a boiler cooling tower. The organic matter remover is disposed on the blowdown water line to remove organic matter in the boiler cooling tower blowdown water by activated carbon. The absorber is configured to absorb sulfur oxides in flue gas from a boiler. The makeup water introducing line is for introducing the boiler cooling tower blowdown water from which the organic matter has been removed as makeup water for the absorber.Type: ApplicationFiled: February 21, 2017Publication date: April 11, 2019Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Naoyuki Kamiyama, Koichiro Hirayama, Satoru Sugita, Yoshito Tanaka, Seiji Kagawa, Toshihiro Fukuda
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Patent number: 5387609Abstract: According to the present invention, there is provided an anti-solid tumor agent comprising a cembrane-type compound represented by the general formula (I) or (II): ##STR1## wherein R is a hydrogen atom or an acyl group, as an effective ingredient.Type: GrantFiled: March 9, 1992Date of Patent: February 7, 1995Assignee: Mitsubishi Kasei CorporationInventors: Yoshiharu Morita, Koichiro Hirayama
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Patent number: 5300525Abstract: According to the present invention, there is provided an anti-solid tumor agent comprising a cembrane-type compound represented by the general formula (I) or (II): ##STR1## wherein R is a hydrogen atom or an acyl group, as an effective ingredient.Type: GrantFiled: March 2, 1992Date of Patent: April 5, 1994Assignee: Mitsubishi Kasei CorporationInventors: Yoshiharu Morita, Koichiro Hirayama
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Patent number: 4916160Abstract: According to the present invention, there is provided an anti-solid tumor agent comprising a cembrane-type compound represented by the general formula (I) or (II): ##STR1## wherein R is a hydrogen atom or an acyl group, as an effective ingredient.Type: GrantFiled: July 10, 1987Date of Patent: April 10, 1990Assignee: Mitsubishi Kasei CorporationInventors: Yoshiharu Morita, Koichiro Hirayama
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Patent number: 4906794Abstract: The present invention provides lysosome liberation inhibitors comprising, as effective ingredients, cembrane-type diterpene compounds represented by the general formula (I) or (II): ##STR1## wherein R is a hydrogen atom or an acyl group. Also provided is histamine release inhibitors comprising the cembrane-type diterpene compounds represented by the general formula (I) or (II) above as effective ingredients.Type: GrantFiled: February 10, 1989Date of Patent: March 6, 1990Assignee: Mitsubishi Kasei CorporationInventors: Kohei Umezu, Koichiro Hirayama, Kazuo Suzuki