Patents by Inventor Koh Sasaki

Koh Sasaki 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: 7331299
    Abstract: An incombustible withdrawing system withdraws an incombustible from a fluidized-bed furnace having a fluidized bed formed therein by a fluidized medium. The incombustible withdrawing system has a mixture delivery path to deliver a mixture of the fluidized medium and the incombustible from a bottom of the fluidized-bed furnace. The incombustible withdrawing system also has a fluidized-bed separating chamber disposed downstream of the mixture delivery path to fluidize the mixture by a fluidizing gas and to separate the mixture into a first separated mixture and a second separated mixture. The incombustible withdrawing system includes a return passage to return the first separated mixture to the fluidized-bed furnace, and an incombustible discharge passage to discharge the second separated mixture to an exterior of the fluidized-bed furnace.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: February 19, 2008
    Assignee: Ebara Corporation
    Inventors: Norihisa Miyoshi, Yasuhiro Sawada, Tatsuya Hasegawa, Koh Sasaki
  • Publication number: 20070144413
    Abstract: An incombustible withdrawing system withdraws an incombustible from a fluidized-bed furnace having a fluidized bed formed therein by a fluidized medium. The incombustible withdrawing system has a mixture delivery path to deliver a mixture of the fluidized medium and the incombustible from a bottom of the fluidized-bed furnace. The incombustible withdrawing system also has a fluidized-bed separating chamber disposed downstream of the mixture delivery path to fluidize the mixture by a fluidizing gas and to separate the mixture into a first separated mixture and a second separated mixture. The incombustible withdrawing system includes a return passage to return the first separated mixture to the fluidized-bed furnace, and an incombustible discharge passage to discharge the second separated mixture to an exterior of the fluidized-bed furnace.
    Type: Application
    Filed: February 28, 2007
    Publication date: June 28, 2007
    Inventors: Norihisa Miyoshi, Yasuhiro Sawada, Tatsuya Hasegawa, Koh Sasaki
  • Patent number: 7159522
    Abstract: An incombustible withdrawing system withdraws an incombustible from a fluidized-bed furnace having a fluidized bed formed therein by a fluidized medium. The incombustible withdrawing system has a mixture delivery path to deliver a mixture of the fluidized medium and the incombustible from a bottom of the fluidized-bed furnace. The incombustible withdrawing system also has a fluidized-bed separating chamber disposed downstream of the mixture delivery path to fluidize the mixture by a fluidizing gas and to separate the mixture into a first separated mixture and a second separated mixture. The incombustible withdrawing system includes a return passage to return the first separated mixture to the fluidized-bed furnace, and an incombustible discharge passage to discharge the second separated mixture to an exterior of the fluidized-bed furnace.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 9, 2007
    Assignee: Ebara Corporation
    Inventors: Norihisa Miyoshi, Yasuhiro Sawada, Tatsuya Hasegawa, Koh Sasaki
  • Patent number: 7128004
    Abstract: 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: Grant
    Filed: April 30, 2004
    Date of Patent: October 31, 2006
    Assignee: Ebara Corporation
    Inventors: Norihisa Miyoshi, Tatsuya Hasegawa, Katsutoshi Naruse, Yasuhiro Sawada, Koh Sasaki
  • Publication number: 20060137580
    Abstract: An incombustible withdrawing system withdraws an incombustible from a fluidized-bed furnace having a fluidized bed formed therein by a fluidized medium. The incombustible withdrawing system has a mixture delivery path to deliver a mixture of the fluidized medium and the incombustible from a bottom of the fluidized-bed furnace. The incombustible withdrawing system also has a fluidized-bed separating chamber disposed downstream of the mixture delivery path to fluidize the mixture by a fluidizing gas and to separate the mixture into a first separated mixture and a second separated mixture. The incombustible withdrawing system includes a return passage to return the first separated mixture to the fluidized-bed furnace, and an incombustible discharge passage to discharge the second separated mixture to an exterior of the fluidized-bed furnace.
    Type: Application
    Filed: January 27, 2006
    Publication date: June 29, 2006
    Inventors: Norihisa Miyoshi, Yasuhiro Sawada, Tatsuya Hasegawa, Koh Sasaki
  • Patent number: 7025007
    Abstract: An incombustible withdrawing system withdraws an incombustible from a fluidized-bed furnace having a fluidized bed formed therein by a fluidized medium. The incombustible withdrawing system has a mixture delivery path to deliver a mixture of the fluidized medium and the incombustible from a bottom of the fluidized-bed furnace. The incombustible withdrawing system also has a fluidized-bed separating chamber disposed downstream of the mixture delivery path to fluidize the mixture by a fluidizing gas and to separate the mixture into a first separated mixture and a second separated mixture. The incombustible withdrawing system includes a return passage to return the first separated mixture to the fluidized-bed furnace, and an incombustible discharge passage to discharge the second separated mixture to an exterior of the fluidized-bed furnace.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: April 11, 2006
    Assignee: Ebara Corporation
    Inventors: Norihisa Miyoshi, Yasuhiro Sawada, Tatsuya Hasegawa, Koh Sasaki
  • Publication number: 20050066864
    Abstract: An incombustible withdrawing system (302a) withdraws an incombustible from a fluidized-bed furnace (305) having a fluidized bed (312) formed therein by a fluidized medium (310). The incombustible withdrawing system (302a) has a mixture delivery path (316) to deliver a mixture (310b) of the fluidized medium and the incombustible from a bottom (311) of the fluidized-bed furnace (305). The incombustible withdrawing system (302a) also has a fluidized-bed separating chamber (390) disposed downstream of the mixture delivery path (316) to fluidize the mixture (310b) by a fluidizing gas (331) and to separate the mixture into a first separated mixture (310g) and a second separated mixture (310f). The incombustible withdrawing system (302a) includes a return passage (391, 394) to return the first separated mixture (310g) to the fluidized-bed furnace (305), and an incombustible discharge passage (392) to discharge the second separated mixture (310f) to an exterior of the fluidized-bed furnace (305).
    Type: Application
    Filed: March 25, 2004
    Publication date: March 31, 2005
    Inventors: Norihisa Miyoshi, Yasuhiro Sawada, Tatsuya Hasegawa, Koh Sasaki
  • Publication number: 20040237860
    Abstract: 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 materials
    Type: Application
    Filed: April 30, 2004
    Publication date: December 2, 2004
    Inventors: Norihisa Miyoshi, Tatsuya Hasegawa, Katsutoshi Naruse, Yasuhiro Sawada, Koh Sasaki