Patents by Inventor Yuichiro Kitagawa
Yuichiro Kitagawa 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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Patent number: 10713972Abstract: An apparatus displaying a job screen indicating a job procedure, has a management unit that manages a job and a plurality of processes, a monitor unit that monitors an operation of an operator, a recorder unit that records an address of a job, an instructing unit that retrieves an address in response to a notification, determines whether to update the retrieved address in response to a type of a notified operation, and stores the updated address when the retrieved address has been updated, a storage unit that stores the job screen, and a control unit that reads the job screen and controls the read job screen, wherein the management unit retrieves the updated address, and instructs the display control unit to display the job screen, and wherein the display control unit reads out the instructed job screen.Type: GrantFiled: June 20, 2019Date of Patent: July 14, 2020Assignee: FUJITSU LIMITEDInventors: Kazuki Kitamura, Mitsutaka Kaneki, Yuichiro Kitagawa, Yasuo Hatanaka, Hiroshi Kobayashi
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Publication number: 20190304332Abstract: An apparatus displaying a job screen indicating a job procedure, has a management unit that manages a job and a plurality of processes, a monitor unit that monitors an operation of an operator, a recorder unit that records an address of a job, an instructing unit that retrieves an address in response to a notification, determines whether to update the retrieved address in response to a type of a notified operation, and stores the updated address when the retrieved address has been updated, a storage unit that stores the job screen, and a control unit that reads the job screen and controls the read job screen, wherein the management unit retrieves the updated address, and instructs the display control unit to display the job screen, and wherein the display control unit reads out the instructed job screen.Type: ApplicationFiled: June 20, 2019Publication date: October 3, 2019Applicant: FUJITSU LIMITEDInventors: Kazuki KITAMURA, Mitsutaka KANEKI, Yuichiro KITAGAWA, Yasuo HATANAKA, Hiroshi KOBAYASHI
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Patent number: 10373514Abstract: An apparatus displaying a job screen indicating a job procedure, has a management unit that manages a job and a plurality of processes, a monitor unit that monitors an operation of an operator, a recorder unit that records an address of a job, an instructing unit that retrieves an address in response to a notification, determines whether to update the retrieved address in response to a type of a notified operation, and stores the updated address when the retrieved address has been updated, a storage unit that stores the job screen, and a control unit that reads the job screen and controls the read job screen, wherein the management unit retrieves the updated address, and instructs the display control unit to display the job screen, and wherein the display control unit reads out the instructed job screen.Type: GrantFiled: January 6, 2012Date of Patent: August 6, 2019Assignee: FUJITSU LIMITEDInventors: Kazuki Kitamura, Mitsutaka Kaneki, Yuichiro Kitagawa, Yasuo Hatanaka, Hiroshi Kobayashi
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Patent number: 9731240Abstract: The reliability of backwashing valves constituted of first backwashing valves and second backwashing valves is ensured. A first backwashing valve (backwashing-gas rear valve) (7) that controls gas for backwashing and a second backwashing valve (backwashing-gas front valve) (6) that operates at slower speed than the first backwashing valve (7) are disposed, in a series including two or more thereof, at backwashing-gas introducing pipes individually provided for each of the filter blocks.Type: GrantFiled: November 6, 2013Date of Patent: August 15, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Koyama, Osamu Shinada, Yuichiro Kitagawa, Takao Hashimoto
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Patent number: 9701915Abstract: An object is to prevent blockage of a slag hole with char and slag, enabling stable operation of a gasification furnace. In a configuration in which a heat exchanger (20) is provided above a coal gasification portion (10), the diameters (D1, D3) of the slag hole (16) and the throat portion (17) are set to three times or more the pitch (ST) of rows of heat exchange tubes (21). By doing so, blockage of the slag hole (16) or the throat portion (17) with char and a sintered material (50) falling from the heat exchanger (20) is prevented, enabling stable operation of a coal gasification furnace (101).Type: GrantFiled: January 22, 2013Date of Patent: July 11, 2017Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kenta Haari, Osamu Shinada, Yasunari Shibata, Yuichiro Kitagawa
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Patent number: 9567904Abstract: A method for controlling a gas turbine power plant, a gas turbine power plant, a method for controlling a carbon-containing fuel gasifier, and a carbon-containing fuel gasifier that can keep constant the amount of heat generated from a synthetic gas produced by the carbon-containing fuel gasifier. The gas turbine power plant includes a coal gasifier including a coal gasifier unit that gasifies a fuel containing carbon to produce a synthetic gas and a water-cooled wall duct disposed on the coal gasifier unit and to which a coolant, i.e., water, is directed; a gas turbine combustor that combusts the synthetic gas to produce combustion gas; a gas turbine rotated by the combustion gas produced by the gas turbine combustor; and a generator that generates electrical power. The amount of fuel fed to the coal gasifier is controlled depending on the amount of heat absorbed by the coolant directed to the water-cooled wall duct.Type: GrantFiled: October 17, 2012Date of Patent: February 14, 2017Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yasunari Shibata, Yuichiro Kitagawa, Kengo Shibata, Yuichiro Urakata
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Patent number: 9429043Abstract: A gasifier (101) including a fluid communication channel (131) that communicates a fluid, which undergoes heat exchange in the furnace, and that generates syngas by gasifying fuel; gas purifying equipment that removes impurities contained in the syngas generated by the gasifier (101); a gas turbine that is driven by the gas purified by the gas purifying equipment; and a heat exchanger that heats a fluid with exhaust expelled from the gas turbine. The fluid heated by the heat exchanger is supplied to the fluid communication channel (131) by being pressurized by pressurizing gas when performing warm-up of the gasifier (101).Type: GrantFiled: May 19, 2011Date of Patent: August 30, 2016Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kenta Haari, Yasunari Shibata, Yuichiro Kitagawa, Osamu Shinada
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Patent number: 9261020Abstract: Synthesis gas (syngas) gasified in a gasification furnace to which coal is introduced burns in a combustor. An exhaust-heat recovery boiler generates steam by using exhaust gas let out from a gas turbine equipped with the combustor. The steam generated in the exhaust-heat recovery boiler is introduced to a steam turbine. A generator is driven by the steam turbine and the gas turbine to generate electrical power. Part of the exhaust gas let out from the gas turbine is introduced to a carbon-dioxide recovery unit, where carbon dioxide is recovered therefrom. Coal is carried to the gasification furnace by the carbon dioxide.Type: GrantFiled: March 29, 2011Date of Patent: February 16, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiromi Ishii, Yuichiro Kitagawa, Yasunari Shibata, Yuichiro Urakata
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Publication number: 20140366504Abstract: An object is to prevent blockage of a slag hole with char and slag, enabling stable operation of a gasification furnace. In a configuration in which a heat exchanger (20) is provided above a coal gasification portion (10), the diameters (D1, D3) of the slag hole (16) and the throat portion (17) are set to three times or more the pitch (ST) of rows of heat exchange tubes (21). By doing so, blockage of the slag hole (16) or the throat portion (17) with char and a sintered material (50) falling from the heat exchanger (20) is prevented, enabling stable operation of a coal gasification furnace (101).Type: ApplicationFiled: January 22, 2013Publication date: December 18, 2014Inventors: Kenta Haari, Osamu Shinada, Yasunari Shibata, Yuichiro Kitagawa
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Publication number: 20140230451Abstract: A method for controlling a gas turbine power plant, a gas turbine power plant, a method for controlling a carbon-containing fuel gasifier, and a carbon-containing fuel gasifier that can keep constant the amount of heat generated from a synthetic gas produced by the carbon-containing fuel gasifier. The gas turbine power plant includes a coal gasifier including a coal gasifier unit that gasifies a fuel containing carbon to produce a synthetic gas and a water-cooled wall duct disposed on the coal gasifier unit and to which a coolant, i.e., water, is directed; a gas turbine combustor that combusts the synthetic gas to produce combustion gas; a gas turbine rotated by the combustion gas produced by the gas turbine combustor; and a generator that generates electrical power. The amount of fuel fed to the coal gasifier is controlled depending on the amount of heat absorbed by the coolant directed to the water-cooled wall duct.Type: ApplicationFiled: October 17, 2012Publication date: August 21, 2014Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yasunari Shibata, Yuichiro Kitagawa, Kengo Shibata, Yuichiro Urakata
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Patent number: 8673066Abstract: In a porous filter, dust that has been collected from a gas through a filter group installed in a vessel body onto filter surfaces is removed from the filter surfaces by backwashing in which the supply and stoppage of a high-pressure gas ejected toward porous filter elements are repeated by means of a valve operation. Backwash tanks having upstream backwash valves and downstream backwash valves are installed in backwash pipes through which the high-pressure gas is guided from high-pressure-gas supply equipment to backwash nozzles for ejecting the backwash high-pressure gas toward the filter group to form a backwash high-pressure-medium supply line. The outlet pressure of the high-pressure-gas supply equipment is set to “1/critical pressure ratio” or more times a filter inlet gas pressure so that the flow speed of the high-pressure gas ejected from the backwash nozzle is the speed of sound or higher.Type: GrantFiled: July 15, 2010Date of Patent: March 18, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshinori Koyama, Osamu Shinada, Yuichiro Kitagawa, Takashi Yamamoto
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Publication number: 20140059982Abstract: The reliability of backwashing valves constituted of first backwashing valves and second backwashing valves is ensured. A first backwashing valve (backwashing-gas rear valve) (7) that controls gas for backwashing and a second backwashing valve (backwashing-gas front valve) (6) that operates at slower speed than the first backwashing valve (7) are disposed, in a series including two or more thereof, at backwashing-gas introducing pipes individually provided for each of the filter blocks.Type: ApplicationFiled: November 6, 2013Publication date: March 6, 2014Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Koyama, Osamu Shinada, Yuichiro Kitagawa, Takao Hashimoto
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Patent number: 8551204Abstract: A dust collector that collects dust (12) in gas (11) and purifies the gas (11) includes a tube plate (16) being provided in a dust collector frame (13) that separates an interior into a gas introduction chamber (14) and a gas discharge chamber (15), a plurality of dust collection pipes (17) being hung from the tube plate (16) that feeds the gas (11) from outside to inside and removes the dust (12) on a surface thereof, a gas introduction pipe (18) being provided in the gas introduction chamber (14) that includes a gas opening end portion (18a) positioned near the tube plate (16), and supplies the gas (11) to the dust collection pipes (17) in a downflow direction, a diffuser (19) being provided at the opening end portion (18a) of the gas introduction pipe (18), and a gas discharging unit (21) being provided in the gas discharge chamber (15) that discharges purified gas (20).Type: GrantFiled: November 6, 2006Date of Patent: October 8, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsuhiko Yokohama, Yuichiro Kitagawa, Masashi Kitada
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Patent number: 8414668Abstract: In a coal gasification furnace adapted to feed pulverized coal thereinto by the use of inert carrier gas and gasify the same, any startup burner can be unnecessitated thereby eliminating any startup combustion chamber. Further, even in the use of a startup burner, it is smaller and lighter in weight than conventional startup burners, allowing the startup combustion chamber to be compact and limiting the height of the entirety of the gasification furnace. As a characteristic feature, a pulverized coal fuel supply passageway (23) to a combustor burner (9) is provided at its midstream portion with a startup gas supply passageway (29) for supply of a startup combustible gas (NG1).Type: GrantFiled: July 15, 2008Date of Patent: April 9, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsuhiko Yokohama, Hiromi Ishii, Yuichiro Kitagawa
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Patent number: 8408007Abstract: An integrated gasification combined cycle that can adjust the balance of pressure/temperature in an overall plant and can stabilize the output of a gas turbine at an early stage during load variation, and an operation control method of the integrated gasification combined cycle are provided. When a calorific abnormality of fuel gas is detected during load variation of a gas turbine (5b), a load change command value of the gas turbine (5b) is set to zero or is decreased, and based on this load change command value, a power generation output command of the gas turbine (5b) is generated.Type: GrantFiled: November 9, 2007Date of Patent: April 2, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Satoru Kamohara, Takashi Sonoda, Yasuhiro Takashima, Yuichiro Kitagawa
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Publication number: 20130036720Abstract: A gasifier (101) that has a fluid communication channel (131) that communicates a fluid, which undergoes heat exchange in the furnace, and that generates syngas by gasifying fuel; gas purifying equipment that removes impurities contained in the syngas generated by the gasifier (101); a gas turbine that is driven by the gas purified by the gas purifying equipment; and a heat exchanger that heats a fluid with exhaust expelled from the gas turbine are provided, and the fluid heated by the heat exchanger is supplied to the fluid communication channel (131) by being pressurized by pressurizing gas when performing warm-up of the gasifier (101).Type: ApplicationFiled: May 19, 2011Publication date: February 14, 2013Inventors: Kenta Haari, Yasunari Shibata, Yuichiro Kitagawa, Osamu Shinada
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Publication number: 20120247080Abstract: Synthesis gas (syngas) gasified in a gasification furnace to which coal is introduced burns in a combustor. An exhaust-heat recovery boiler generates steam by using exhaust gas let out from a gas turbine equipped with the combustor. The steam generated in the exhaust-heat recovery boiler is introduced to a steam turbine. A generator is driven by the steam turbine and the gas turbine to generate electrical power. Part of the exhaust gas let out from the gas turbine is introduced to a carbon-dioxide recovery unit, where carbon dioxide is recovered therefrom. Coal is carried to the gasification furnace by the carbon dioxide.Type: ApplicationFiled: March 29, 2011Publication date: October 4, 2012Inventors: Hiromi Ishii, Yuichiro Kitagawa, Yasunari Shibata, Yuichiro Urakata
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Publication number: 20120231427Abstract: An apparatus displaying a job screen indicating a job procedure, has a management unit that manages a job and a plurality of processes, a monitor unit that monitors an operation of an operator, a recorder unit that records an address of a job, an instructing unit that retrieves an address in response to a notification, determines whether to update the retrieved address in response to a type of a notified operation, and stores the updated address when the retrieved address has been updated, a storage unit that stores the job screen, and a control unit that reads the job screen and controls the read job screen, wherein the management unit retrieves the updated address, and instructs the display control unit to display the job screen, and wherein the display control unit reads out the instructed job screen.Type: ApplicationFiled: January 6, 2012Publication date: September 13, 2012Applicant: Fujitsu LimitedInventors: Kazuki Kitamura, Mitsutaka Kaneki, Yuichiro Kitagawa, Yasuo Hatanaka, Hiroshi Kobayashi
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Publication number: 20120137890Abstract: In a porous filter, dust that has been collected from a gas through a filter group installed in a vessel body onto filter surfaces is removed from the filter surfaces by backwashing in which the supply and stoppage of a high-pressure gas ejected toward porous filter elements are repeated by means of a valve operation. Backwash tanks having upstream backwash valves and downstream backwash valves are installed in backwash pipes through which the high-pressure gas is guided from high-pressure-gas supply equipment to backwash nozzles for ejecting the backwash high-pressure gas toward the filter group to form a backwash high-pressure-medium supply line. The outlet pressure of the high-pressure-gas supply equipment is set to “1/critical pressure ratio” or more times a filter inlet gas pressure so that the flow speed of the high-pressure gas ejected from the backwash nozzle is the speed of sound or higher.Type: ApplicationFiled: July 15, 2010Publication date: June 7, 2012Inventors: Yoshinori Koyama, Osamu Shinada, Yuichiro Kitagawa, Takashi Yamamoto
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Publication number: 20110154788Abstract: The reliability of backwashing valves constituted of first backwashing valves and second backwashing valves is ensured. A first backwashing valve (backwashing-gas rear valve) (7) that controls gas for backwashing and a second backwashing valve (backwashing-gas front valve) (6) that operates at slower speed than the first backwashing valve (7) are disposed, in a series including two or more thereof, at backwashing-gas introducing pipes individually provided for each of the filter blocks.Type: ApplicationFiled: September 8, 2009Publication date: June 30, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Koyama, Osamu Shinada, Yuichiro Kitagawa, Takao Hashimoto