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).

  • Publication number: 20230299326
    Abstract: 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: Application
    Filed: June 2, 2021
    Publication date: September 21, 2023
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., NAGOYA DENKI EDUCATIONAL FOUNDATION
    Inventors: Koichiro Hirayama, Toshiyasu Kiyabu, Yasushi Morita, Tsuyoshi Murata, Aya Ito
  • Publication number: 20220166045
    Abstract: 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: Application
    Filed: January 29, 2020
    Publication date: May 26, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Toshiyasu Kiyabu, Yoshinori Noguchi, Ikumi Watanabe, Koichiro Hirayama
  • Patent number: 11325850
    Abstract: 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: Grant
    Filed: March 27, 2018
    Date of Patent: May 10, 2022
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Naoyuki Kamiyama, Nobuyuki Ukai, Koichiro Hirayama, Satoru Sugita, Tetsu Ushiku, Toshihiro Fukuda
  • Publication number: 20210016223
    Abstract: 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: Application
    Filed: March 18, 2019
    Publication date: January 21, 2021
    Applicant: Mitsubishi Power, Ltd.
    Inventors: Koichiro Hirayama, Satoru Sugita, Seiji Kagawa, Toshihiro Fukuda
  • Patent number: 10617996
    Abstract: 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: Grant
    Filed: February 21, 2017
    Date of Patent: April 14, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Naoyuki Kamiyama, Koichiro Hirayama, Satoru Sugita, Yoshito Tanaka, Seiji Kagawa, Toshihiro Fukuda
  • Publication number: 20200071207
    Abstract: 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: Application
    Filed: March 27, 2018
    Publication date: March 5, 2020
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Naoyuki Kamiyama, Nobuyuki Ukai, Koichiro Hirayama, Satoru Sugita, Tetsu Ushiku, Toshihiro Fukuda
  • Publication number: 20190105604
    Abstract: 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: Application
    Filed: February 21, 2017
    Publication date: April 11, 2019
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Naoyuki Kamiyama, Koichiro Hirayama, Satoru Sugita, Yoshito Tanaka, Seiji Kagawa, Toshihiro Fukuda
  • Patent number: 5387609
    Abstract: 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: Grant
    Filed: March 9, 1992
    Date of Patent: February 7, 1995
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yoshiharu Morita, Koichiro Hirayama
  • Patent number: 5300525
    Abstract: 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: Grant
    Filed: March 2, 1992
    Date of Patent: April 5, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yoshiharu Morita, Koichiro Hirayama
  • Patent number: 4916160
    Abstract: 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: Grant
    Filed: July 10, 1987
    Date of Patent: April 10, 1990
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yoshiharu Morita, Koichiro Hirayama
  • Patent number: 4906794
    Abstract: 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: Grant
    Filed: February 10, 1989
    Date of Patent: March 6, 1990
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Kohei Umezu, Koichiro Hirayama, Kazuo Suzuki