Patents by Inventor Hiromi Ishii
Hiromi Ishii 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: 20240093639Abstract: This gas turbine plant is provided with a gas turbine and a fuel supply facility. The fuel supply facility is provided with: a liquid ammonia line; a warm water line through which warm water can flow; a vaporizer which can perform the heat exchange between the warm water coming from the warm water line and liquid ammonia coming from the liquid ammonia line to heat and vaporize the liquid ammonia; a heat exchanger which can perform the heat exchange between the warm water in the warm water line and a medium; a heat exchange amount controller which can control the amount of heat exchange between the warm water and the medium to control the temperature of the warm water flowing into the vaporizer; and a gaseous ammonia line which can introduce gaseous ammonia that is ammonia vaporized by the vaporizer into the gas turbine.Type: ApplicationFiled: February 14, 2022Publication date: March 21, 2024Inventors: Ryo IKEDA, Hiromi ISHII, Akira HATTORI, Michio SASAKI, Takahiro SUGAWARA
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Publication number: 20240094481Abstract: An optical apparatus includes a light emitting apparatus and a host apparatus. The light emitting apparatus includes a housing extending in a first direction, a light emitting device mounted in the housing, an optical connector including a first optical connection part provided at one end of the housing, and an electrical connector including a first electrical connection part provided at one end of the housing and receiving a voltage to drive the light emitting device. The host apparatus includes a host optical connector including a second optical connection part which faces the first optical connection part and is optically coupled thereto, a host electrical connector including a second electrical connection part facing the first electrical connection part and being electrically connected to the first electrical connection part, and a host board mounting the host optical connector and the host electrical connector thereon.Type: ApplicationFiled: March 5, 2021Publication date: March 21, 2024Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.Inventors: Kuniyuki ISHII, Hiromi KURASHIMA, Hideaki KAMISUGI, Tomomi SANO, Tetsuya NAKANISHI, Hong NGUYEN, Hajime ARAO, Dai SASAKI, Takuro WATANABE
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Publication number: 20240085764Abstract: An electronic apparatus includes a plurality of contacts electrically connectable to an accessory and arranged in a first direction orthogonal to a direction in which the accessory is attached. The contacts include an attachment detection contact to detect an attachment of the accessory to the electronic apparatus, and a communication request contact for a communication request from the accessory to the electronic apparatus. The attachment detection and communication request contacts are disposed between a contact closest one end and a contact closest to another end in the first direction. The attachment detection contact is disposed between the communication request contact and the contact closest to the one end. In the first direction, a distance between the attachment detection contact and the communication request contact is shorter than that between the communication request contact and the contact closest to the other end.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Inventors: Hiromichi Sakamoto, Kei Tohyama, Takayuki Shu, Hiromi Hayasaki, Kouji Ikeda, Yuhei Hattori, Kenji Ishii, Yoshinobu Okano
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Patent number: 11833467Abstract: A boiler plant includes a carbon dioxide capture system. The carbon dioxide capture system has an absorbing-liquid regeneration device and an absorber. The absorbing-liquid regeneration device includes a regenerator, a first circulation line in which the absorbing liquid is taken out from the regenerator and is returned to the regenerator, and a second circulation line in which the absorbing liquid is taken out from the regenerator and is returned to the regenerator, a heat exchanger, a heater, and a switcher. The heat exchanger heats the absorbing liquid by exchanging heat between the absorbing liquid flowing through the first circulation line and steam from the boiler. The heater heats the absorbing liquid flowing in the second circulation line. The switcher switches between a first heating state, in which the absorbing liquid flows in the first circulation line, and a second heating state, in which the absorbing liquid flows in the second circulation line.Type: GrantFiled: December 7, 2020Date of Patent: December 5, 2023Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Atsushi Tsutsumi, Hiromi Ishii, Tetsuya Tanaka, Naoyuki Nagafuchi, Takashi Kamijo
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Publication number: 20230021855Abstract: This exhaust gas processing equipment is provided with an exhaust line through which exhaust gas discharged from a boiler circulates, a carbon dioxide recovering device for recovering carbon dioxide included in the exhaust gas, and an exhaust gas heating device provided downstream of the carbon dioxide recovering device to heat the exhaust gas. The carbon dioxide recovering device includes a first medium line through which a first medium circulates, and a second medium line through which a second medium higher in temperature than the first medium circulates. The exhaust gas heating device includes a first heating unit for heating the exhaust gas by means of heat exchange with the first medium, and a second heating unit for heating the exhaust gas passing through the first heating unit even more by heat exchange with the second medium.Type: ApplicationFiled: November 24, 2020Publication date: January 26, 2023Inventors: Takashi KAMIJO, Atsushi TSUTSUMI, Hiromi ISHII, Takahiro ARAYA, Tetsuya TANAKA, Kazunori TSUJII, Naoyuki NAGAFUCHI
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Publication number: 20220410062Abstract: Provided is a boiler plant including a carbon dioxide capture system. The carbon dioxide capture system has an absorbing-liquid regeneration device and an absorber. The absorbing-liquid regeneration device includes a regenerator, a first circulation line in which the absorbing liquid is taken out from the regenerator and is returned to the regenerator, and a second circulation line in which the absorbing liquid is taken out from the regenerator and is returned to the regenerator, a heat exchanger, a heater, and a switcher. The heat exchanger heats the absorbing liquid by exchanging heat between the absorbing liquid flowing through the first circulation line and steam from the boiler. The heater heats the absorbing liquid flowing in the second circulation line. The switcher switches between a first heating state in which the absorbing liquid flows in the first circulation line and a second heating state in which the absorbing liquid flows in the second circulation line.Type: ApplicationFiled: December 7, 2020Publication date: December 29, 2022Inventors: Atsushi TSUTSUMI, Hiromi ISHII, Tetsuya TANAKA, Naoyuki NAGAFUCHI, Takashi KAMIJO
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Patent number: 11084995Abstract: A carbonaceous feedstock gasification power generation facility, and a method for regulating a gas for drying gas this carbonaceous feedstock, are disclosed with which it is possible to expand the range of the types of carbonaceous feedstocks that can be used. High-temperature exhaust gas, low-temperature exhaust gas and extreme high-temperature exhaust gas are bled from the furnace respectively at a high-temperature bleed position, a low-temperature bleed position and an extreme high-temperature bleed position. When these exhaust gases are mixed, the flow volume of the extreme high-temperature exhaust gas supplied to at least one of the exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, is adjusted such that the temperature of at least one of these exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, reaches a prescribed temperature.Type: GrantFiled: May 10, 2017Date of Patent: August 10, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Koichi Sakamoto, Hiromi Ishii, Takashi Fujii, Shogo Yoshida
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Publication number: 20190144769Abstract: A carbonaceous feedstock gasification power generation facility, and a method for regulating a gas for drying gas this carbonaceous feedstock, are disclosed with which it is possible to expand the range of the types of carbonaceous feedstocks that can be used. High-temperature exhaust gas, low-temperature exhaust gas and extreme high-temperature exhaust gas are bled from the furnace respectively at a high-temperature bleed position, a low-temperature bleed position and an extreme high-temperature bleed position. When these exhaust gases are mixed, the flow volume of the extreme high-temperature exhaust gas supplied to at least one of the exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, is adjusted such that the temperature of at least one of these exhaust gases, that is, the high-temperature exhaust gas or the low-temperature exhaust gas, reaches a prescribed temperature.Type: ApplicationFiled: May 10, 2017Publication date: May 16, 2019Applicant: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Koichi Sakamoto, Hiromi Ishii, Takashi Fujii, Shogo Yoshida
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Patent number: 9890331Abstract: A gasification facility which uses flammable gas as a carrier medium for air-transporting powder fuel, used as a gasification raw material, to a gasification furnace and which can safely release the flammable gas, exhausted from a fuel feed hopper, to the atmosphere. In the gasification facility using flammable gas as a carrier medium for transporting pulverized coal as powder fuel from a pulverized coal feed hopper (7) to a gasification furnace (11), the flammable gas discharged from the pulverized coal feed hopper (7) is subjected to incineration treatment and then released to the atmosphere, so that safe release to the atmosphere can be implemented.Type: GrantFiled: November 29, 2010Date of Patent: February 13, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yasutaka Mizokoshi, Hiromi Ishii, Takashi Iwahashi, Katsuhiko Yokohama, Takashi Yamamoto
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Patent number: 9487715Abstract: Provided is a coal gasifier enabling a reduction in size of a shift reactor by generating hydrogen-rich gasified coal gas. In a coal gasifier (G) generating gasified coal gas by a gasification reaction proceeding in a furnace fed with a gasifiable raw material, such as coal, and a gasifying agent, at least one of water and steam is fed to the furnace as a material accelerating a hydrogen-generating reaction that proceeds simultaneously with the gasification reaction.Type: GrantFiled: January 30, 2015Date of Patent: November 8, 2016Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Takashi Yamamoto, Katsuhiko Yokohama, Yoshinori Koyama, Katsuhiro Ota, Hiromi Ishii
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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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Patent number: 9199806Abstract: A bin system and a char recovery unit are provided with: a bin for storing char; three char discharge lines placed at the predetermined slope angle for causing the char to fall with the force of gravity so as to discharge the char into the bin; four switching lines placed at the predetermined slope angle for causing the char to fall with the force of gravity so as to feed the char stored in the bin; and assist gas feed units as assist devices for assisting the flow of the char that falls with the force of gravity through the char discharge lines. This allows for equipment downsizing.Type: GrantFiled: November 16, 2011Date of Patent: December 1, 2015Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yoshinori Koyama, Osamu Shinada, Yasunari Shibata, Hiromi Ishii, Takashi Yamamoto
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Publication number: 20150159096Abstract: It is intended to provide a fuel gasification system, a control method and a control program for the fuel gasification system, and a fuel gasification combined power generation system provided with the fuel gasification system, whereby even when types and properties of the fuel changes, a calorific value of combustible gas produced by gasification of the fuel is stable while increase or decrease in the amount of char generation is suppressed. A control device (26) of a fuel gasification system (12) controls, depending on an indicator corresponding to the calorific value (SG calorific value) of the combustible gas, the supply of the fuel to a gasification furnace (16) and the supply of the oxygen gas to the gasification furnace (16) so as to change a ratio of the supply of the oxygen gas to the supply of the air supplied to the gasification furnace (16).Type: ApplicationFiled: November 26, 2012Publication date: June 11, 2015Inventors: Takanori Tsutsumi, Hiromi Ishii, Takashi Fujii, Yoshinori Koyama
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Publication number: 20150144843Abstract: Provided is a coal gasifier enabling a reduction in size of a shift reactor by generating hydrogen-rich gasified coal gas. In a coal gasifier (G) generating gasified coal gas by a gasification reaction proceeding in a furnace fed with a gasifiable raw material, such as coal, and a gasifying agent, at least one of water and steam is fed to the furnace as a material accelerating a hydrogen-generating reaction that proceeds simultaneously with the gasification reaction.Type: ApplicationFiled: January 30, 2015Publication date: May 28, 2015Inventors: Takashi YAMAMOTO, Katsuhiko YOKOHAMA, Yoshinori KOYAMA, Katsuhiro OTA, Hiromi ISHII
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Publication number: 20140231239Abstract: In a bin system and a char recovery apparatus, reduction in size of the apparatus can be achieved. Provided are: a bin (44) that can store char; three char discharge lines (47, 49a, 49b) that are arranged at a predetermined inclination angle at which the char can be discharged in the bin (44) by means of gravitational fall; four switching lines (51a, 51b, 51c, 51d) that are arranged at the predetermined inclination angle theta at which the char stored in the bin (44) can be fed by means of the gravitational fall; and assist gas feed parts (54, 55a, 55b) as an assist device that assist flow of the char gravitationally falling down the char discharge lines (47, 49a, 49b).Type: ApplicationFiled: November 22, 2012Publication date: August 21, 2014Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Koyama, Yuichiro Urakata, Osamu Shinada, Yasunari Shibata, Takashi Yamamoto, Koji Nishimura, Hiromi Ishii
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Patent number: 8667912Abstract: In a burner for highly caking coal in which a solid fuel channel that is attached penetrating through a surrounding wall of a gasifier for gasifying a highly caking solid fuel that has been pulverized into particles and that supplies the solid fuel into the gasifier by gas flow transportation, and a gasifying agent channel that supplies a gasifying agent into the gasifier are provided, a blockage detection unit that detects a blockage situation of the solid fuel channel is provided, and a process for reducing the temperature of the solid fuel is performed when the blockage detection unit detects a predetermined blockage situation.Type: GrantFiled: July 11, 2008Date of Patent: March 11, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshinori Koyama, Takeshi Aruga, Hiromi Ishii
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Patent number: 8615981Abstract: An integrated coal gasification combined cycle facility is provided that can prevent a reduction in power generation efficiency even when low-grade coal having a relatively-high moisture content is used. Included are: a gasification section that gasifies supplied coal; a gas power generation section that generates power by using gas supplied from the gasification section; a steam power generation section that generates power by using the heat of exhaust gas discharged from the gas power generation section; and a coal drying unit that dries the coal by using exhaust heat discharged from the steam power generation section and that supplies the dried coal to the gasification section.Type: GrantFiled: November 6, 2008Date of Patent: December 31, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takashi Yamamoto, Katsuhiro Ota, Hiromi Ishii, Yoshinori Koyama, Kimishiro Tokuda, Isao Mochida, Tatsuro Harada
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Patent number: 8607716Abstract: In a burner for highly caking coal in which a solid fuel channel and a gasifying agent channel are provided in a double pipe structure, the temperature increase of the particles of a highly caking solid fuel and the resulting fusion and expansion of the particles are prevented or suppressed, thereby enabling a stable operation of the gasifier. In a burner for highly caking coal in which a solid fuel channel that is attached for gasifying a highly caking solid fuel that has been pulverized into particles and that supplies the solid fuel into the gasifier, and a gasifying agent channel that supplies a gasifying agent into the gasifier are provided in a double pipe structure, the burner has a triple pipe structure including a cooling water channel that circulates cooling water between the solid fuel channel and the gasifying agent channel, and the cooling water is recovered after use.Type: GrantFiled: June 18, 2008Date of Patent: December 17, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshinori Koyama, Takeshi Aruga, Hiromi Ishii, Kazuyuki Myoyo
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Patent number: 8601817Abstract: A hydrogen production apparatus which includes: a humidifier (2), which is supplied with a process fluid containing carbon monoxide and mixes the process fluid with steam; a reactor (3), which reacts the humidified process fluid output from the humidifier in the presence of a catalyst, thereby converting the carbon monoxide within the process fluid into carbon dioxide; a first pipe (A) through which high-temperature process fluid flows following reaction in the reactor; a second pipe (B) that supplies makeup water; at least one first heat exchanger (51a, 51b) disposed at one of one or more locations where the first pipe and the second pipe cross each other; and a third pipe (C) that supplies steam generated by heat exchange in the first heat exchanger to other apparatus.Type: GrantFiled: December 9, 2010Date of Patent: December 10, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takanori Tsutsumi, Yoshinori Koyama, Katsuhiro Ota, Takashi Fujii, Hiromi Ishii
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Patent number: 8561408Abstract: The amount of high-temperature steam supplied from external equipment is reduced. Provided is a hydrogen production system (1) including a reactor (3) that allows a humidified process fluid output from a humidifier (2) to react in the presence of a catalyst to transform carbon monoxide in the process fluid into carbon dioxide; a second channel (B) through which the high-temperature process fluid that has reacted in the reactor (3) flows; a circulation channel (C) through which excess water in the humidifier (2) is circulated; and a first heat exchanger (7), disposed at an intersection of the circulation channel (C) and the second channel (B), for heat exchange between the high-temperature process fluid that has reacted in the reactor (3) and the fluid circulated through the circulation channel (C).Type: GrantFiled: December 10, 2009Date of Patent: October 22, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takanori Tsutsumi, Yoshinori Koyama, Katsuhiro Ota, Takashi Fujii, Takashi Yamamoto, Hiromi Ishii