Patents by Inventor Makoto Takafuji

Makoto Takafuji 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).

  • Publication number: 20220266222
    Abstract: The present invention provides a column filler for liquid chromatography that has a great adsorption capacity, adjustable adsorption selectivity, and high shape retainability and therefore is usable for measurement of various substances and capable of achieving excellent separation performance and a high filling rate in a column when used as a column filler for liquid chromatography. Provided is a column filler for liquid chromatography including carbon-coated porous particles, the carbon-coated porous particles including porous particles each having a coating layer containing an amorphous carbon on a surface.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Applicants: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Ren-de SUN, Shoji NOZATO, Akira NAKASUGA, Hirotaka IHARA, Makoto TAKAFUJI, Yutaka KUWAHARA, Hiroki NOGUCHI, Tianhang LIU
  • Publication number: 20210283576
    Abstract: The present invention provides a column filler for liquid chromatography that has a great adsorption capacity, adjustable adsorption selectivity, and high shape retainability and therefore is usable for measurement of various substances and capable of achieving excellent separation performance and a high filling rate in a column when used as a column filler for liquid chromatography. Provided is a column filler for liquid chromatography including carbon-coated porous particles, the carbon-coated porous particles including porous particles each having a coating layer containing an amorphous carbon on a surface.
    Type: Application
    Filed: November 11, 2017
    Publication date: September 16, 2021
    Applicants: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Ren-de SUN, Shoji NOZATO, Akira NAKASUGA, Hirotaka IHARA, Makoto TAKAFUJI, Yutaka KUWAHARA, Hiroki NOGUCHI, Tianhang LIU
  • Publication number: 20210168972
    Abstract: A heat conductive sheet having excellent heat conductivity in the thickness direction is provided. A heat conductive sheet (1) comprises a first carbon material having a graphene laminated structure (2), orientation-controlling particles (3), and a first resin (4), wherein at least a part of the first carbon material (2) is oriented in a direction different from the surface direction of the heat conductive sheet (1) due to the presence of the orientation-controlling particles (3), and the ratio of the average particle diameter of the first carbon material (2) to the average particle diameter of the orientation-controlling particles (3) (the first carbon material (2)/the orientation-controlling particles (3)) is 0.09 or more and less than 4.0.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 3, 2021
    Inventors: Kouji Ashiba, Keigo Oowashi, Shoji Nozato, Makoto Takafuji, Hirotaka Ihara
  • Publication number: 20180354798
    Abstract: The present invention provides black particles having high electrical insulation properties, high blackness in a visible light region, and excellent dispersibility, and a method for producing the black particles. The present invention relates to black particles containing amorphous carbon, the amorphous carbon being derived from carbon contained in an oxazine resin, the black particles having a specific gravity of 1.8 g/cm3 or less, a zeta potential of ?70 to +80 mV, an average total light reflectance measured at a wavelength of 400 to 800 nm of 5% or less, and a peak intensity ratio between G band and D band as determined from a Raman spectrum of 1.2 or more.
    Type: Application
    Filed: February 17, 2017
    Publication date: December 13, 2018
    Applicants: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Ren-de SUN, Shoji NOZATO, Akira NAKASUGA, Hirotaka IHARA, Makoto TAKAFUJI, Yutaka KUWAHARA, Akiko MURAKAMI
  • Publication number: 20170298261
    Abstract: There is provided a thermally conductive sheet having excellent thermal conductivity in the thickness direction of the sheet. A thermally conductive sheet comprising expanded graphite; and orientation-controlling particles, wherein at least part of the expanded graphite is oriented in a direction different from a plane direction of the sheet by the orientation-controlling particles.
    Type: Application
    Filed: November 27, 2015
    Publication date: October 19, 2017
    Inventors: Shoji Nozato, Akira Nakasuga, Akihiko Fujiwara, Hirotaka Ihara, Makoto Takafuji, Eisaku Sato
  • Patent number: 9604884
    Abstract: There is provided a composite material having excellent adhesion between a resin and a graphene-like carbon material and a method for producing the same. A composite material comprising a substrate comprising a resin, and a graphene-like carbon material layer provided so as to cover at least part of a surface of the substrate, wherein the graphene-like carbon material layer is composed of a graphene-like carbon material obtained by pyrolyzing a polymer in a composition in which the polymer is fixed to graphite or primary exfoliated graphite.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: March 28, 2017
    Assignees: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Shoji Nozato, Akira Nakasuga, Hirotaka Ihara, Makoto Takafuji, Hullathy Subban Ganapathy, Rika Fukuda
  • Patent number: 9528053
    Abstract: A gasification furnace (110) of a circulation fluidized bed-type gasification furnace (100) forms a fluid medium into a fluid bed, and produces gasified gas by gasifying an input gasification raw material using heat from the fluid medium. A combustion furnace (102) heats the fluid medium output from the gasification furnace. A flow rate adjuster (106) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer section (112). In this manner, irrespective of the flow rate of the fluid medium in the entire circulation fluidized bed-type gasification furnace (100), the buffer section (112) enables the fluid medium to bypass to the combustion furnace. As a result, the flow rate of the fluid medium in the gasification furnace (110) can be maintained at a desired flow rate.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 27, 2016
    Assignee: IHI CORPORATION
    Inventors: Masahiro Narukawa, Makoto Takafuji, Toshiyuki Suda
  • Patent number: 9458295
    Abstract: A composite material in which a graphene-like carbon material has excellent adhesion to a substrate composed of resin, and a method for producing the same are provided. The composite material comprises a substrate composed of resin and a graphene-like carbon material layer provided so as to cover at least part of the surface of the substrate, wherein graphene-like carbon is closely attached to the surface of the substrate. The method for producing a composite material comprises bringing a graphene-like carbon material into contact with at least part of the surface of a substrate composed of resin and heating under the action of a supercritical or subcritical fluid.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: October 4, 2016
    Assignees: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Shoji Nozato, Akira Nakasuga, Hirotaka Ihara, Hullathy Subban Ganapathy, Makoto Takafuji
  • Patent number: 9399738
    Abstract: A circulation type gasification furnace is provided with: a gasification furnace that turns a fluidized medium into a fluidized bed or moving bed, and produces gasification gas by gasifying a gasification raw material injected into the fluidized medium; a combustion furnace that heats the fluidized medium discharged from the gasification furnace and combusts residue of the gasification raw material; a medium separator that, in order to return the fluidized medium to the gasification furnace, separates the fluidized medium from a combustion exhaust gas discharged from the combustion furnace; a gasification gas separator that separates the gasification gas produced in the gasification furnace from the residue of the gasification raw material; and a residue discharge section that creates a seal between the gasification gas separator and the combustion furnace, and discharges the residue separated by the gasification gas separator into the combustion furnace.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: July 26, 2016
    Assignee: IHI CORPORATION
    Inventor: Makoto Takafuji
  • Patent number: 9284417
    Abstract: A composite material in which a graphene-like carbon material has excellent adhesion to a substrate composed of resin, and a method for producing the same are provided. The composite material comprises a substrate composed of resin and a graphene-like carbon material layer provided so as to cover at least part of the surface of the substrate, wherein graphene-like carbon is closely attached to the surface of the substrate. The method for producing a composite material comprises bringing a graphene-like carbon material into contact with at least part of the surface of a substrate composed of resin and heating under the action of a supercritical or subcritical fluid.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: March 15, 2016
    Assignees: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Shoji Nozato, Akira Nakasuga, Hirotaka Ihara, Hullathy Subban Ganapathy, Makoto Takafuji
  • Patent number: 9267679
    Abstract: A lateral duct 15 for interconnecting a riser 1 and a cyclone separator 2 has an introduction portion 16 at the connection with the riser 1 which has a cross-sectional area equal to that of the riser 1, and a throttled portion 17 between the introduction portion 16 and the cyclone separator 2 which has cross-sectional areas gradually reduced from the introduction portion 16 to the cyclone separator 2 so as to increase a flow velocity of combustion gas.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: February 23, 2016
    Assignee: IHI Corporation
    Inventors: Makoto Takafuji, Toshiyuki Suda
  • Publication number: 20160024259
    Abstract: A composite material in which a graphene-like carbon material has excellent adhesion to a substrate composed of resin, and a method for producing the same are provided. The composite material comprises a substrate composed of resin and a graphene-like carbon material layer provided so as to cover at least part of the surface of the substrate, wherein graphene-like carbon is closely attached to the surface of the substrate. The method for producing a composite material comprises bringing a graphene-like carbon material into contact with at least part of the surface of a substrate composed of resin and heating under the action of a supercritical or subcritical fluid.
    Type: Application
    Filed: October 7, 2015
    Publication date: January 28, 2016
    Inventors: Shoji Nozato, Akira Nakasuga, Hirotaka Ihara, Hullathy Subban Ganapathy, Makoto Takafuji
  • Patent number: 9192900
    Abstract: In the gasification furnace raw material supplying apparatus, the protective gas (36) is jetted toward the fluidized bed (4) formed in the fluidized bed gasification furnace (1) from an end portion on the downstream side (B) of the screw feeder (28) in the raw material supplying direction using the nozzle (42) in the screw shaft (27). In addition, the protective gas (36) is jetted toward the fluidized bed (4) from the periphery of the end portion on the downstream side (B) of the screw feeder (28) in the raw material supplying direction using the nozzles (37) provided at the furnace wall (23) of the fluidized bed gasification furnace (1). As a result, the end portion of the screw shaft (27) on the downstream side (B) in the raw material supplying direction is prevented from being exposed to the bed material which is a component of the fluidized bed (4), and abrasion of the front end portion of the screw can be suppressed.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: November 24, 2015
    Assignee: IHI CORPORATION
    Inventor: Makoto Takafuji
  • Publication number: 20150210599
    Abstract: There is provided a composite material having excellent adhesion between a resin and a graphene-like carbon material and a method for producing the same. A composite material comprising a substrate comprising a resin, and a graphene-like carbon material layer provided so as to cover at least part of a surface of the substrate, wherein the graphene-like carbon material layer is composed of a graphene-like carbon material obtained by pyrolyzing a polymer in a composition in which the polymer is fixed to graphite or primary exfoliated graphite.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 30, 2015
    Inventors: Shoji Nozato, Akira Nakasuga, Hirotaka Ihara, Makoto Takafuji, Hullathy Subban Ganapathy, Rika Fukuda
  • Publication number: 20140328730
    Abstract: A circulation type gasification furnace is provided with: a gasification furnace that turns a fluidized medium into a fluidized bed or moving bed, and produces gasification gas by gasifying a gasification raw material injected into the fluidized medium; a combustion furnace that heats the fluidized medium discharged from the gasification furnace and combusts residue of the gasification raw material; a medium separator that, in order to return the fluidized medium to the gasification furnace, separates the fluidized medium from a combustion exhaust gas discharged from the combustion furnace; a gasification gas separator that separates the gasification gas produced in the gasification furnace from the residue of the gasification raw material; and a residue discharge section that creates a seal between the gasification gas separator and the combustion furnace, and discharges the residue separated by the gasification gas separator into the combustion furnace.
    Type: Application
    Filed: July 18, 2014
    Publication date: November 6, 2014
    Inventor: Makoto TAKAFUJI
  • Patent number: 8864856
    Abstract: A circulating fluidized bed gasification furnace has a combustion furnace 1, a cyclone collector 4 to which a combustion exhaust gas 3 from the combustion furnace 1 is introduced to collect a circulating medium 5, a fluidized bed gasification furnace 8 for formation of a fluidized bed 10 by introducing the circulating medium 5 collected in the cyclone collector 4 through a downcomer 7 and by supplying a gasification agent 9 from below and for gasification of a raw material 12 by supplying the same to a freeboard 11, and a circulation flow passage 14 for return of the circulating medium and unreacted char not gasified in the gasification furnace 8 to the combustion furnace 1. The downcomer 7 connected to the collector 4 has a lower end connected through a sealer 18 to the freeboard 11 in the gasification furnace 8. A raw material supply unit 20 is arranged to supply the raw material 12 to the circulating medium 5 between the sealer 18 and the freeboard 11.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: October 21, 2014
    Assignee: IHI Corporation
    Inventors: Makoto Takafuji, Toshiyuki Suda
  • Publication number: 20140091260
    Abstract: A gasification furnace (110) of a circulation fluidized bed-type gasification furnace (100) forms a fluid medium into a fluid bed, and produces gasified gas by gasifying an input gasification raw material using heat from the fluid medium. A combustion furnace (102) heats the fluid medium output from the gasification furnace. A flow rate adjuster (106) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer section (112). In this manner, irrespective of the flow rate of the fluid medium in the entire circulation fluidized bed-type gasification furnace (100), the buffer section (112) enables the fluid medium to bypass to the combustion furnace. As a result, the flow rate of the fluid medium in the gasification furnace (110) can be maintained at a desired flow rate.
    Type: Application
    Filed: June 18, 2012
    Publication date: April 3, 2014
    Inventors: Masahiro Narukawa, Makoto Takafuji, Toshiyuki Suda
  • Publication number: 20130244038
    Abstract: A composite material in which a graphene-like carbon material has excellent adhesion to a substrate composed of resin, and a method for producing the same are provided. The composite material comprises a substrate composed of resin and a graphene-like carbon material layer provided so as to cover at least part of the surface of the substrate, wherein graphene-like carbon is closely attached to the surface of the substrate. The method for producing a composite material comprises bringing a graphene-like carbon material into contact with at least part of the surface of a substrate composed of resin and heating under the action of a supercritical or subcritical fluid.
    Type: Application
    Filed: May 28, 2012
    Publication date: September 19, 2013
    Inventors: Shoji Nozato, Akira Nakasuga, Hirotaka Ihara, Hullathy Subban Ganapathy, Makoto Takafuji
  • Patent number: 8480767
    Abstract: A fluidized bed gasification system is provided in which bed material and raw material are passed throughout a fluidized bed gasification furnace so that raw material is gasified with higher gasification efficiency to improve gasification productivity. A heat-resistant partition 32 for regulation of bed material flow is arranged between positions I and II of a downcomer 12 of a separator 8 and of a supply flow passage 25 in plane of a fluidized bed gasification furnace 2. As a result, the bed material introduced via the downcomer 12 is directed to a supply flow passage 25 through a circuitous flow passage 33 throughout the fluidized bed gasification furnace 2 defined by the heat-resistant partition 32.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: July 9, 2013
    Assignee: IHI Corporation
    Inventors: Yoshiaki Matsuzawa, Toshiyuki Suda, Hironobu Fujiyoshi, Makoto Takafuji, Kenichiro Kondo
  • Publication number: 20130089470
    Abstract: In the gasification furnace raw material supplying apparatus, the protective gas (36) is jetted toward the fluidized bed (4) formed in the fluidized bed gasification furnace (1) from an end portion on the downstream side (B) of the screw feeder (28) in the raw material supplying direction using the nozzle (42) in the screw shaft (27). In addition, the protective gas (36) is jetted toward the fluidized bed (4) from the periphery of the end portion on the downstream side (B) of the screw feeder (28) in the raw material supplying direction using the nozzles (37) provided at the furnace wall (23) of the fluidized bed gasification furnace (1). As a result, the end portion of the screw shaft (27) on the downstream side (B) in the raw material supplying direction is prevented from being exposed to the bed material which is a component of the fluidized bed (4), and abrasion of the front end portion of the screw can be suppressed.
    Type: Application
    Filed: June 13, 2011
    Publication date: April 11, 2013
    Inventor: Makoto Takafuji