Patents by Inventor Nobutaka Kashima

Nobutaka Kashima 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).

  • Patent number: 7618469
    Abstract: 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: Grant
    Filed: May 13, 2008
    Date of Patent: November 17, 2009
    Assignee: Ebara Corporation
    Inventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
  • Publication number: 20080263952
    Abstract: 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: Application
    Filed: May 13, 2008
    Publication date: October 30, 2008
    Inventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
  • Patent number: 7390337
    Abstract: 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: Grant
    Filed: March 8, 2005
    Date of Patent: June 24, 2008
    Assignee: Ebara Corporation
    Inventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
  • Patent number: 7285144
    Abstract: 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: Grant
    Filed: August 25, 2005
    Date of Patent: October 23, 2007
    Assignee: Ebara Corporation
    Inventors: Shuichi Nagato, Takahiro Oshita, Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse
  • Publication number: 20060000143
    Abstract: 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: Application
    Filed: August 25, 2005
    Publication date: January 5, 2006
    Inventors: Shuichi Nagato, Takahiro Oshita, Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse
  • Patent number: 6949224
    Abstract: 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: Grant
    Filed: December 18, 1998
    Date of Patent: September 27, 2005
    Assignee: Ebara Corporation
    Inventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto
  • Publication number: 20050144844
    Abstract: 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: Application
    Filed: March 8, 2005
    Publication date: July 7, 2005
    Inventors: Norihisa Miyoshi, Seiichiro Toyoda, Shugo Hosoda, Nobutaka Kashima, Katsutoshi Naruse, Katsuyuki Aoki, Shinji Sekikawa, Shuichi Nagato, Hiroshi Hashimoto