Patents by Inventor Koji TAKAOKA

Koji TAKAOKA 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: 20240066085
    Abstract: Expression of matrix metalloproteinase 1 is suppressed. A matrix metalloproteinase 1 expression suppression agent of this disclosure contains, as an active ingredient, at least one selected from the group consisting of Saxifraga sarmentosa, an extract of Saxifraga sarmentosa, rosemary, an extract of rosemary, licorice, an extract of licorice, Melissa officinalis, an extract of Melissa officinalis, wild thyme, an extract of wild thyme, hop, and an extract of hop.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 29, 2024
    Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, DSR CORPORATION
    Inventors: Yasuhito SHIRAI, Koji TAKAOKA
  • Patent number: 10669959
    Abstract: Provided is a control device of a gas turbine including a compressor, a combustor, and a turbine. The control device executes load control of allowing an operation control point for operation control of a gas turbine to vary in response to a load of the gas turbine. The operation of the gas turbine is controlled on the basis of a rated temperature adjustment line for temperature adjustment control of a flue gas temperature at a predetermined load to a rated flue gas temperature at which performance of the gas turbine becomes rated performance, a preceding setting line for setting of the flue gas temperature at the predetermined load to a preceding flue gas temperature that becomes lower in precedence to the rated flue gas temperature, and a limit temperature adjustment line for temperature adjustment control.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: June 2, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Takashi Sonoda, Akihiko Saito, Yoshifumi Iwasaki, Ryuji Takenaka, Kozo Toyama, Koji Takaoka
  • Patent number: 10550716
    Abstract: A control device is configured to control a gas turbine that is configured to compress a suctioned air with a compressor to obtain compressed air, mix a fuel supplied from a combustor with the compressed air to burn the fuel and the compressed air to generate a combustion gas, operate a turbine with the combustion gas to rotate a rotor, and discharge the combustion gas that has operated the turbine as a flue gas. The compressor includes an inlet guide vane which is capable of adjusting a degree of opening and is on an air-suction side, and the control device is configured to execute temperature adjustment control to control the degree of opening of the inlet guide vane along a temperature adjustment line indicating an upper limit temperature of a flue gas temperature defined according to a load of the gas turbine.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: February 4, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Akihiko Saito, Takashi Sonoda, Yoshifumi Iwasaki, Koji Takaoka, Ryuji Takenaka, Kozo Toyama
  • Patent number: 10221777
    Abstract: A combustion control device is installed in a gas turbine including a compressor, a combustor, a turbine, a turbine bypass pipe through which compressed air from a casing is discharged to a turbine downstream part so as to bypass the turbine, and a turbine bypass valve that regulates a turbine bypass flow rate of the compressed air. The combustion control device includes: a fuel distribution setting unit that sets a turbine inlet temperature or a turbine inlet temperature-equivalent control variable on the basis of input data, and sets fuel distribution ratios on the basis of the turbine inlet temperature or the turbine inlet temperature-equivalent control variable; and a fuel valve opening setting section that sets the valve openings of fuel regulating valves. The fuel distribution setting unit includes correction means for modifying the fuel distribution ratios.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 5, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Noriyoshi Uyama, Hideki Haruta, Wataru Akizuki, Yuji Komagome, Koji Takaoka, Yoshifumi Iwasaki
  • Patent number: 10208678
    Abstract: A combustion control device (50) is installed in a gas turbine including a compressor (2), combustors (3), a turbine (4), a bleed air pipe (12) through which bleed air is returned to an inlet of an air intake facility (7), and an air bleed valve (22) that regulates the amount of bleed air extracted. The combustion control device (50) includes: a fuel distribution setting unit (70) that sets a turbine inlet temperature or a turbine inlet temperature-equivalent control variable on the basis of input data, and sets fuel distribution ratios on the basis of the turbine inlet temperature or the turbine inlet temperature-equivalent control variable; and a fuel valve opening setting section (81) that sets the valve openings of fuel regulating valves. The fuel distribution setting unit (70) includes correction means for modifying the fuel distribution ratios.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: February 19, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Noriyoshi Uyama, Hideki Haruta, Wataru Akizuki, Yuji Komagome, Koji Takaoka, Yoshifumi Iwasaki
  • Publication number: 20170254282
    Abstract: Provided is a control device of a gas turbine including a compressor, a combustor, and a turbine. The control device executes load control of allowing an operation control point for operation control of a gas turbine to vary in response to a load of the gas turbine. The operation of the gas turbine is controlled on the basis of a rated temperature adjustment line for temperature adjustment control of a flue gas temperature at a predetermined load to a rated flue gas temperature at which performance of the gas turbine becomes rated performance, a preceding setting line for setting of the flue gas temperature at the predetermined load to a preceding flue gas temperature that becomes lower in precedence to the rated flue gas temperature, and a limit temperature adjustment line for temperature adjustment control.
    Type: Application
    Filed: June 16, 2015
    Publication date: September 7, 2017
    Inventors: Takashi SONODA, Akihiko SAITO, Yoshifumi IWASAKI, Ryuji TAKENAKA, Kozo TOYAMA, Koji TAKAOKA
  • Publication number: 20170211409
    Abstract: A control device 14 of a gas turbine that compresses a suctioned air with a compressor to obtain compressed air, mixes a fuel supplied from a combustor with the compressed air to burn the fuel and the compressed air to obtain a combustion gas, operates a turbine with the generated combustion gas to rotate a rotor, and discharges the combustion gas that has operated the turbine as a flue gas, the compressor including an inlet guide vane capable of adjusting the degree of opening and provided on an air-suction side, and temperature adjustment control to control the degree of opening of an inlet guide vane being executed along a temperature adjustment line indicating an upper limit temperature of a flue gas temperature defined according to a load of the gas turbine.
    Type: Application
    Filed: June 16, 2015
    Publication date: July 27, 2017
    Inventors: Akihiko SAITO, Takashi SONODA, Yoshifumi IWASAKI, Koji TAKAOKA, Ryuji TAKENAKA, Kozo TOYAMA
  • Publication number: 20170089268
    Abstract: A combustion control device is installed in a gas turbine including a compressor, a combustor, a turbine, a turbine bypass pipe through which compressed air from a casing is discharged to a turbine downstream part so as to bypass the turbine, and a turbine bypass valve that regulates a turbine bypass flow rate of the compressed air. The combustion control device includes: a fuel distribution setting unit that sets a turbine inlet temperature or a turbine inlet temperature-equivalent control variable on the basis of input data, and sets fuel distribution ratios on the basis of the turbine inlet temperature or the turbine inlet temperature-equivalent control variable; and a fuel valve opening setting section that sets the valve openings of fuel regulating valves. The fuel distribution setting unit includes correction means for modifying the fuel distribution ratios.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Inventors: Noriyoshi UYAMA, Hideki HARUTA, Wataru AKIZUKI, Yuji KOMAGOME, Koji TAKAOKA, Yoshifumi IWASAKI
  • Publication number: 20170074175
    Abstract: A combustion control device (50) is installed in a gas turbine including a compressor (2), combustors (3), a turbine (4), a bleed air pipe (12) through which bleed air is returned to an inlet of an air intake facility (7), and an air bleed valve (22) that regulates the amount of bleed air extracted. The combustion control device (50) includes: a fuel distribution setting unit (70) that sets a turbine inlet temperature or a turbine inlet temperature-equivalent control variable on the basis of input data, and sets fuel distribution ratios on the basis of the turbine inlet temperature or the turbine inlet temperature-equivalent control variable; and a fuel valve opening setting section (81) that sets the valve openings of fuel regulating valves. The fuel distribution setting unit (70) includes correction means for modifying the fuel distribution ratios.
    Type: Application
    Filed: March 24, 2015
    Publication date: March 16, 2017
    Inventors: Noriyoshi UYAMA, Hideki HARUTA, Wataru AKIZUKI, Yuji KOMAGOME, Koji TAKAOKA, Yoshifumi IWASAKI