Patents by Inventor Akinori Yasutake

Akinori Yasutake 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: 7700065
    Abstract: A carbon nano-fibrous rod including a predetermined number of hexagonal carbon layers extending in one direction, and a fibrous nanoncarbon which includes a plurality of the carbon nano-fibrous rods three-dimensionally gathered are disclosed.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: April 20, 2010
    Assignees: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yuichi Fujioka, Akinori Yasutake, Toshihiko Setoguchi, Isao Mochida, Seong-Ho Yoon
  • Patent number: 7655204
    Abstract: This invention relates to a technique for removing nitrogen oxides (NOx) present in exhaust gases discharged from boilers and the like. When the temperature of the exhaust gas is 100° C. or below, a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200° C. in a non-oxidizing atmosphere so as to remove oxygen-containing functional groups present at the surfaces thereof and thereby reduce the atomic surface oxygen/surface carbon ratio to 0.05 or less is preferably used. When the temperature of the exhaust gas exceeds 100° C., a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200° C. in a non-oxidizing atmosphere and activating the surfaces thereof with sulfuric acid or nitric acid to impart oxidizing oxygen-containing functional groups thereto is preferably used.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: February 2, 2010
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa
  • Publication number: 20090081097
    Abstract: This invention relates to a technique for removing nitrogen oxides (NOx) present in exhaust gases discharged from boilers and the like. When the temperature of the exhaust gas is 100° C. or below, a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200° C. in a non-oxidizing atmosphere so as to remove oxygen-containing functional groups present at the surfaces thereof and thereby reduce the atomic surface oxygen/surface carbon ratio to 0.05 or less is preferably used. When the temperature of the exhaust gas exceeds 100° C., a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200° C. in a non-oxidizing atmosphere and activating the surfaces thereof with sulfuric acid or nitric acid to impart oxidizing oxygen-containing functional groups thereto is preferably used.
    Type: Application
    Filed: November 14, 2008
    Publication date: March 26, 2009
    Inventors: Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa
  • Patent number: 7465429
    Abstract: This invention relates to a technique for removing nitrogen oxides (NOx) present in exhaust gases discharged from boilers and the like. When the temperature of the exhaust gas is 100° C. or below, a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200° C. in a non-oxidizing atmosphere so as to remove oxygen-containing functional groups present at the surfaces thereof and thereby reduce the atomic surface oxygen/surface carbon ratio to 0.05 or less is preferably used. When the temperature of the exhaust gas exceeds 100° C., a heat-treated active carbon produced by heat-treating a raw active carbon at 600. to 1,200° C. in a non-oxidizing atmosphere and activating the surfaces thereof with sulfuric acid or nitric acid to impart oxidizing oxygen-containing functional groups thereto is preferably used.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: December 16, 2008
    Assignees: Osaka Gas Company Limited, Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa
  • Patent number: 7335340
    Abstract: A flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: February 26, 2008
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Norihisa Kobayashi, Akinori Yasutake, Takashi Kurisaki, Kiyoshi Tatsuhara
  • Patent number: 7267710
    Abstract: An apparatus for regenerating an adsorbent includes an electrolytic cell filled with an electrolyte and an electrode unit that includes a first electrode made from the adsorbent in which a substance is adsorbed and a second electrode. The first electrode and the second electrode are soaked in the electrolyte. The apparatus also includes a power source that supplies a voltage applied between the first electrode and the second electrode.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: September 11, 2007
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kiyoshi Tatsuhara, Akinori Yasutake, Takashi Kurisaki, Norihisa Kobayashi, Tomoaki Sugiyama, Masahiko Nagai
  • Publication number: 20060178263
    Abstract: A metallic material, such as chromium or iron, is added to a carbon material, such as activated carbon fibers, activated carbon, graphite, carbon nanotube, or nanocarbon. The resulting carbon material is used to remove hazardous substances (for example, sulfur contents) in an exhaust gas.
    Type: Application
    Filed: December 5, 2003
    Publication date: August 10, 2006
    Inventors: Kiyoshi Tatsuhara, Akinori Yasutake, Norihisa Kobayashi, Takashi Kurisaki
  • Patent number: 7029639
    Abstract: A desulfurization apparatus for desulfurizing a flue gas containing sulfur oxides through contact with a porous carbon material. The carbon material, which is provided in a desulfurization tower, is at least one species selected from activated carbon and activated carbon fiber. The apparatus contains an NO2-gas-feeding apparatus for feeding NO2 gas into the desulfurization tower. Within the desulfurization tower, a showering mechanism is provided at the top, the showering mechanism adjusting water content of the flue gas in the desulfurization tower to that corresponding to saturation with water vapor or higher at the treatment temperature.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: April 18, 2006
    Assignees: Osaka Gas Co., Ltd., Mitsubishi Heavy Industries, Ltd.
    Inventors: Akinori Yasutake, Norihisa Kobayashi, Takashi Kurisaki, Masaaki Yoshikawa
  • Publication number: 20060057054
    Abstract: A carbon nano-fibrous rod 12 is constituted of a hexagonal carbon layer 11 having a central axis extending in one direction, and the carbon nano-fibrous rods 12 are three-dimensionally gathered to form fibrous nanocarbon.
    Type: Application
    Filed: November 21, 2003
    Publication date: March 16, 2006
    Inventors: Yuichi Fujioka, Akinori Yasutake, Toshihiko Setoguchi, Isao Mochida
  • Patent number: 6946108
    Abstract: A flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: September 20, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Norihisa Kobayashi, Akinori Yasutake, Takashi Kurisaki, Kiyoshi Tatsuhara
  • Patent number: 6905544
    Abstract: The invention has as an object proving a carbon nanomaterial fabrication method that can continuously mass-produce a high purity carbon a nanomaterial. The tube-shaped or fiber-shaped carbon nanomaterial having carbon as the main constituent is fabricated with a compound that includes carbon (raw material) and an additive that includes a metal by using a fluidized bed reactor.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: June 14, 2005
    Assignees: Mitsubishi Heavy Industries, Ltd., Osaka Gas Co., Ltd.
    Inventors: Toshihiko Setoguchi, Yuichi Fujioka, Yoshihiko Tsuchiyama, Akinori Yasutake, Matsuhei Noda, Norihisa Kobayashi, Ryoichi Nishida, Hitoshi Nishino, Katsuhide Okimi, Akihiro Hachiya
  • Patent number: 6872373
    Abstract: A flue gas processing apparatus for removing sulfur oxide contained in a gas, including a desulfurization tower through which the gas flows, the desulfurization tower including a catalyst unit having at least one activated carbon fiber board which adsorbs the sulfur oxide and a water-supply device configured to supply water to the catalyst unit so as to form sulfuric acid from the sulfur oxide adsorbed to the at least one activated carbon fiber board, the water-supply device being positioned above the catalyst unit in the desulfurization tower, and a pressurizing device configured to apply pressure to the gas supplied to the desulfurization tower so as to flow the gas through the catalyst unit by the pressure.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: March 29, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kiyoshi Tatsuhara, Akinori Yasutake, Takashi Kurisaki, Norihisa Koyayashi
  • Publication number: 20050025679
    Abstract: The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).
    Type: Application
    Filed: August 27, 2004
    Publication date: February 3, 2005
    Inventors: Norihisa Kobayashi, Akinori Yasutake, Takashi Kurisaki, Kiyoshi Tatsuhara
  • Publication number: 20050025689
    Abstract: The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).
    Type: Application
    Filed: August 27, 2004
    Publication date: February 3, 2005
    Inventors: Norihisa Kobayashi, Akinori Yasutake, Takashi Kurisaki, Kiyoshi Tatsuhara
  • Publication number: 20040231766
    Abstract: A propulsion device operated in a bi-propellant mode uses a safe hydrogen peroxide as oxidizer and yet has high specific impulse and high response performance. A preheated net 18 is provided in a combustion chamber 14. Both of an oxidizer supply means 10 and a fuel supply means 12 open toward the net 18. Oxidizer 30 and fuel 32 are atomized on the net 18 to thereby increase the surface area. At the same time, the oxidizer 30 and fuel 32 are heated on the net 18 and their decomposition is accelerated. By quickly effecting collision and mixing of the oxidizer 30 with the fuel 32, an instantaneous ignitability can be obtained.
    Type: Application
    Filed: January 5, 2004
    Publication date: November 25, 2004
    Inventors: Hideki Moriai, Akinori Yasutake, Hiroyuki Tsutaya, Mitsuru Nishida
  • Patent number: 6814948
    Abstract: An active carbon for use in the treatment of exhaust gas can be obtained by heat-treating a starting active carbon fiber derived from polyacrylonitrile, pitch or the like or a starting particulate active carbon in a non-oxidizing atmosphere. The heat-treating temperature is preferably in the range of 600 to 1,200 ° C. for use in the desulfurization of exhaust gas, and in range of 600 to 1,000° C. for use in the denitration of exhaust gas. By using the resulting heat-treated active carbon for the purpose of desulfurization, the sulfur oxide concentration in exhaust gas can be reduced to 5 ppm or below. Moreover, by using the heat-treated active carbon in combination with conventional denitration based on selective catalytic reduction, the nitrogen oxide concentration in exhaust gas can be reduced to 1 ppm or below.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: November 9, 2004
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Osaka Gas Company Limited
    Inventors: Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa, Isao Mochida
  • Publication number: 20040187685
    Abstract: An apparatus for regenerating an adsorbent includes an electrolytic cell filled with an electrolyte; and an electrode unit that includes a first electrode made from the adsorbent in which a substance is adsorbed and a second electrode. The first electrode and the second electrode are soaked in the electrolyte. The apparatus also includes a power source that supplies a voltage applied between the first electrode and the second electrode.
    Type: Application
    Filed: March 15, 2004
    Publication date: September 30, 2004
    Inventors: Kiyoshi Tatsuhara, Akinori Yasutake, Takashi Kurisaki, Norihisa Kobayashi, Tomoaki Sugiyama, Masahiko Nagai
  • Publication number: 20040096390
    Abstract: The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).
    Type: Application
    Filed: August 26, 2003
    Publication date: May 20, 2004
    Inventors: Norihisa Kobayashi, Akinori Yasutake, Takashi Kurisaki, Kiyoshi Tatsuhara
  • Publication number: 20040071621
    Abstract: The invention provides a flue gas processing apparatus including a catalyst unit (6) formed of at least one activated carbon fiber board (20), and water-supply means (7) for supplying, to the catalyst unit (6), water for forming sulfuric acid, the catalyst unit (6) being provided in the apparatus in the form of a tower (4) through which a discharge gas containing sulfur oxide passes, the water-supply means (7) being provided above the catalyst unit (6) or in an upper section of the unit (6) and in the apparatus in the form of a tower (4), wherein the activated carbon fiber board (20) provided in the catalyst unit is formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets (21) and one or more corrugated activated carbon fiber sheets (22) so as to provide vertically extending conduits (15), and the flue gas processing apparatus includes pressurizing means (3) for applying pressure to the discharge gas, to thereby cause the gas to pass through the conduits (15) of the catalyst un
    Type: Application
    Filed: August 18, 2003
    Publication date: April 15, 2004
    Inventors: Kiyoshi Tatsuhara, Akinori Yasutake, Takashi Kurisaki, Norihisa Koyayashi
  • Publication number: 20040000697
    Abstract: The invention has as an object proving a carbon nanomaterial fabrication method that can continuously mass-produce a high purity carbon nanomaterial. The tube-shaped or fiber-shaped carbon nanomaterial having carbon as the main constituent is fabricated with a compound that includes carbon (raw material) and an additive that includes a metal by using a fluidized bed reactor.
    Type: Application
    Filed: February 21, 2003
    Publication date: January 1, 2004
    Inventors: Toshihiko Setoguchi, Yuichi Fujioka, Yoshihiko Tsuchiyama, Akinori Yasutake, Matsuhei Noda, Norihisa Kobayashi, Ryoichi Nishida, Hitoshi Nishino, Katsuhide Okimi, Akihiro Hachiya