Patents by Inventor Katsutoshi Naruse
Katsutoshi Naruse 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: 7618469Abstract: The present invention provides a fuel gasification furnace including a gasification chamber (1) for fluidizing a high-temperature fluidizing medium therein to form a gasification chamber fluidized bed having an interface, and for gasifying a fuel in the gasification chamber fluidized bed, a char combustion chamber (2) for fluidizing a high-temperature fluidizing medium therein to form a char combustion chamber fluidized bed having an interface, and for combusting char generated by gasification in the gasification chamber (1) in the char combustion chamber fluidized bed to heat the fluidizing medium, and a first energy recovery device (109) for using gases generated by the gasification chamber (1) as a fuel. The gasification chamber (1) and the char combustion chamber (2) are integrated with each other.Type: GrantFiled: May 13, 2008Date of Patent: November 17, 2009Assignee: Ebara CorporationInventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
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Publication number: 20080263952Abstract: The present invention provides a fuel gasification furnace including a gasification chamber (1) for fluidizing a high-temperature fluidizing medium therein to form a gasification chamber fluidized bed having an interface, and for gasifying a fuel in the gasification chamber fluidized bed, a char combustion chamber (2) for fluidizing a high-temperature fluidizing medium therein to form a char combustion chamber fluidized bed having an interface, and for combusting char generated by gasification in the gasification chamber (1) in the char combustion chamber fluidized bed to heat the fluidizing medium, and a first energy recovery device (109) for using gases generated by the gasification chamber (1) as a fuel. The gasification chamber (1) and the char combustion chamber (2) are integrated with each other.Type: ApplicationFiled: May 13, 2008Publication date: October 30, 2008Inventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
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Patent number: 7390337Abstract: The present invention provides a fuel gasification furnace including a gasification chamber (1) for fluidizing a high-temperature fluidizing medium therein to form a gasification chamber fluidized bed having an interface, and for gasifying a fuel in the gasification chamber fluidized bed, a char combustion chamber (2) for fluidizing a high-temperature fluidizing medium therein to form a char combustion chamber fluidized bed having an interface, and for combusting char generated by gasification in the gasification chamber (1) in the char combustion chamber fluidized bed to heat the fluidizing medium, and a first energy recovery device (109) for using gases generated by the gasification chamber (1) as a fuel. The gasification chamber (1) and the char combustion chamber (2) are integrated with each other.Type: GrantFiled: March 8, 2005Date of Patent: June 24, 2008Assignee: Ebara CorporationInventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
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Patent number: 7285144Abstract: A gasification furnace and a combustion furnace are integrated with each other to form a single fluidized-bed gasification and combustion furnace in which unburned char generated in the gasification furnace is combusted in the combustion furnace, and the thus generated heat of combustion is utilized as a heat source for gasification. The fluidized-bed gasification and combustion furnace (1) comprises a gasification furnace (3) and a combustion furnace (4) which are divided by a first partition wall (2). In the gasification furnace (3), a revolving flow of the fluidized medium is formed by diffusion devices (32, 33) provided on furnace bottoms, and an upward flow of the fluidized medium partly flows in the combustion furnace (4). The combustion furnace (4) is divided into a main partition wall (5).Type: GrantFiled: August 25, 2005Date of Patent: October 23, 2007Assignee: Ebara CorporationInventors: Shuichi Nagato, Takahiro Oshita, Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse
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Patent number: 7128004Abstract: A supplying apparatus supplies a combustible material capable of enhancing the sealing effects of a supplying system for supplying a combustible material, such as combustible wastes, to a fluidized-bed chamber, stably supplies a combustible material having an undefined shape, and reduces cost for installation. A facility is also provided for gasifying a combustible material using the supplying apparatus for supplying a combustible material, and a method of gasifying combustible materials is also provided. The supplying apparatus supplies a combustible material onto the fluidized bed of a fluidized-bed gasifier chamber or a fluidized-bed combustion chamber. A screw conveyor is inclined, with transportation of the combustible material directed upward, at an angle of 20 degrees or more and 80 degrees or less with respect to a horizontal plane, causing a bed material to flow into a conveyor casing of the screw conveyor.Type: GrantFiled: April 30, 2004Date of Patent: October 31, 2006Assignee: Ebara CorporationInventors: Norihisa Miyoshi, Tatsuya Hasegawa, Katsutoshi Naruse, Yasuhiro Sawada, Koh Sasaki
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Publication number: 20060000143Abstract: A gasification furnace and a combustion furnace are integrated with each other to form a single fluidized-bed gasification and combustion furnace in which unburned char generated in the gasification furnace is combusted in the combustion furnace, and the thus generated heat of combustion is utilized as a heat source for gasification. The fluidized-bed gasification and combustion furnace (1) comprises a gasification furnace (3) and a combustion furnace (4) which are divided by a first partition wall (2). In the gasification furnace (3), a revolving flow of the fluidized medium is formed by diffusion devices (32, 33) provided on furnace bottoms, and an upward flow of the fluidized medium partly flows in the combustion furnace (4). The combustion furnace (4) is divided into a main partition wall (5).Type: ApplicationFiled: August 25, 2005Publication date: January 5, 2006Inventors: Shuichi Nagato, Takahiro Oshita, Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse
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Patent number: 6949224Abstract: The present invention provides a fuel gasification furnace including a gasification chamber (1) for fluidizing a high-temperature fluidizing medium therein to form a gasification chamber fluidized bed having an interface, and for gasifying a fuel in the gasification chamber fluidized bed, a char combustion chamber (2) for fluidizing a high-temperature fluidizing medium therein to form a char combustion chamber fluidized bed having an interface, and for combusting char generated by gasification in the gasification chamber (1) in the char combustion chamber fluidized bed to heat the fluidizing medium, and a first energy recovery device (109) for using gases generated by the gasification chamber (1) as a fuel. The gasification chamber (1) and the char combustion chamber (2) are integrated with each other.Type: GrantFiled: December 18, 1998Date of Patent: September 27, 2005Assignee: Ebara CorporationInventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
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Publication number: 20050144844Abstract: The present invention provides a fuel gasification furnace including a gasification chamber (1) for fluidizing a high-temperature fluidizing medium therein to form a gasification chamber fluidized bed having an interface, and for gasifying a fuel in the gasification chamber fluidized bed, a char combustion chamber (2) for fluidizing a high-temperature fluidizing medium therein to form a char combustion chamber fluidized bed having an interface, and for combusting char generated by gasification in the gasification chamber (1) in the char combustion chamber fluidized bed to heat the fluidizing medium, and a first energy recovery device (109) for using gases generated by the gasification chamber (1) as a fuel. The gasification chamber (1) and the char combustion chamber (2) are integrated with each other.Type: ApplicationFiled: March 8, 2005Publication date: July 7, 2005Inventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
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Publication number: 20050132883Abstract: An acid gas scrubbing apparatus and method brings a gas, to be scrubbed, containing carbon dioxide into contact with a gas scrubbing liquid containing alkaline agent and cooled, and acid gases in the gas are removed. A gas scrubber removes acid gases in a gas, to be scrubbed, containing carbon dioxide by bringing the gas to be scrubbed into contact with a gas scrubbing liquid containing alkaline agent. A scrubbing liquid regenerator regenerates and cools the gas scrubbing liquid by bringing the gas scrubbing liquid into contact with a regenerating gas having components different from the gas scrubbing liquid and the gas to be scrubbed. A circulating device is provided between the gas scrubber and the scrubbing liquid regenerator for circulating the scrubbing liquid.Type: ApplicationFiled: October 18, 2004Publication date: June 23, 2005Inventors: Qingquan Su, Norihisa Miyoshi, Katsutoshi Naruse, Takahiro Oshita, Kazuo Kinoshita
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Publication number: 20040244289Abstract: The present invention relates to a combustible gas reforming method, a combustible gas reforming apparatus, and a gasification apparatus for gasifying a combustible material such as coal, biomass, municipal wastes, industrial wastes, RDF (refuse-derived fuel), waste plastics, and the like, and reforming a generated combustible gas. According to a combustible gas reforming method of the present invention, combustibles are gasified in a gasification apparatus (11), a generated gas (GA) produced by gasifying the combustibles is reformed in a gas reforming apparatus (12) using a catalyst to produce a product gas (GB), and a catalyst (CA′) degraded by the gas reforming apparatus (11) is regenerated in a catalyst regenerating apparatus (13). Waste heat (TP) of the combustible gas reforming process is used as heat to regenerate the catalyst in the catalyst regenerating apparatus (13).Type: ApplicationFiled: March 26, 2004Publication date: December 9, 2004Inventors: Fumiaki Morozumi, Katsutoshi Naruse, Kaori Sasaki, Yuki Iwadate
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Publication number: 20040237860Abstract: To provide a supplying apparatus for supplying a combustible material capable of enhancing the sealing effects of a supplying system for supplying a combustible material, such as combustible wastes, to a fluidized-bed chamber, stably supplying a combustible material having an undefined shape, and reducing cost for installation; and further to provide a facility for gasifying a combustible material using the supplying apparatus for supplying a combustible material; and further to provide a method of gasifying combustible materialsType: ApplicationFiled: April 30, 2004Publication date: December 2, 2004Inventors: Norihisa Miyoshi, Tatsuya Hasegawa, Katsutoshi Naruse, Yasuhiro Sawada, Koh Sasaki
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Patent number: 4306139Abstract: Disclosed is a method for welding wear-resisting hard metals directly to iron base members which are slide or wear members of machinery. Hard metals comprising a tungsten carbide and a binder consisting of 15 to 30% by weight of Ni and/or Co is employed as said hard metals. A Ni alloy metal containing no Cr is used as a filler metal.Type: GrantFiled: December 26, 1979Date of Patent: December 15, 1981Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventors: Yukio Shinozaki, Katsutoshi Naruse, Teruo Harada, Sadao Ohishibashi, Susumu Yamaya, Akira Fukawa