Patents by Inventor Shoji Hasegawa

Shoji Hasegawa 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: 10421863
    Abstract: A method of producing the composite reinforcing material includes a step of kneading at least a graphite-based carbon material and a reinforcing material into a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: September 24, 2019
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20180118950
    Abstract: A method of producing the composite reinforcing material includes a step of kneading at least a graphite-based carbon material and a reinforcing material into a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100 ??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 3, 2018
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9862833
    Abstract: A method of producing the composite reinforcing material includes a step of kneading at least a graphite-based carbon material and a reinforcing material into a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 9, 2018
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9862834
    Abstract: A method of producing the composite reinforcing material includes a step of kneading at least a graphite-based carbon material and a reinforcing material into a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: January 9, 2018
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9815987
    Abstract: A composite conductive material includes at least graphene-like exfoliated from a graphite-based graphite carbon material and a conductive material dispersed in a base material. The graphite-based carbon material has a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: November 14, 2017
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9752035
    Abstract: A composite lubricating material include at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100 . . . Equation 1, wherein, P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: September 5, 2017
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9745441
    Abstract: There are provided a graphene composition and a graphene molded article that exert the properties, such as the strength, due to graphene mixed therein, even with a small amount of the graphene. The graphene composition contains a compound, graphene, and a dispersant, the graphene is contained in an amount of from 0.01 to 5% by weight and contains first flakes having a longer edge of less than 1 ?m and second flakes having a longer edge of 1 ?m or more and less than 5 ?m, a number of the first flakes is 5% or more of the entire flakes in the graphene, and a total number of the first flakes and the second flakes is 90% or more of the entire flakes in the graphene.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: August 29, 2017
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20170179490
    Abstract: A composite conductive material includes at least graphene-like exfoliated from a graphite-based graphite carbon material and a conductive material dispersed in a base material. The graphite-based carbon material has a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Application
    Filed: March 13, 2015
    Publication date: June 22, 2017
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20170175023
    Abstract: A composite lubricating material include at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100 ??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Application
    Filed: March 23, 2015
    Publication date: June 22, 2017
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20170174898
    Abstract: A method of producing the composite reinforcing material includes a step of kneading at least a graphite-based carbon material and a reinforcing material into a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Application
    Filed: May 19, 2015
    Publication date: June 22, 2017
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20170174521
    Abstract: Provided is a graphite-based carbon material useful as a graphene precursor, from which graphene is easily exfoliated when the graphite-based carbon material is useful as a precursor and from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material is a graphite-based carbon material useful as a graphene precursor wherein a Rate (3R) based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100 ??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 22, 2017
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9598593
    Abstract: Provided is a graphite-based carbon material useful as a graphene precursor, from which graphene is easily exfoliated when the graphite-based carbon material is useful as a precursor and from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material is a graphite-based carbon material useful as a graphene precursor wherein a Rate (3R) based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: March 21, 2017
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20170066897
    Abstract: There are provided a graphene composition and a graphene molded article that exert the properties, such as the strength, due to graphene mixed therein, even with a small amount of the graphene. The graphene composition contains a compound, graphene, and a dispersant, the graphene is contained in an amount of from 0.01 to 5% by weight and contains first flakes having a longer edge of less than 1 ?m and second flakes having a longer edge of 1 ?m or more and less than 5 ?m, a number of the first flakes is 5% or more of the entire flakes in the graphene, and a total number of the first flakes and the second flakes is 90% or more of the entire flakes in the graphene.
    Type: Application
    Filed: May 30, 2014
    Publication date: March 9, 2017
    Applicant: Graphene Platform Corporation
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9587134
    Abstract: Provided is a graphite-based carbon material useful as a graphene precursor, from which graphene is easily exfoliated when the graphite-based carbon material is useful as a precursor and from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material is a graphite-based carbon material useful as a graphene precursor wherein a Rate (3R) based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 7, 2017
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9552900
    Abstract: A composite conductive material includes at least graphene-like exfoliated from a graphite-based graphite carbon material and a conductive material dispersed in a base material. The graphite-based carbon material has a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100??(Equation 1) wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: January 24, 2017
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20160280551
    Abstract: There are provided graphene powder that may be mass-produced with high quality, an apparatus for producing graphene powder, a method for producing graphene powder, and a product using the graphene powder. A jet flow as a high speed jet stream of a liquid or a gas is output from a jet flow output unit, and a raw material containing graphite and the jet flow thus output from the jet flow output unit are made to inflow to an input part of a chamber to cleave graphite, thereby outputting graphene powder in the form of fine particles of graphite from an output part. The graphene powder by the production method is formed simply by cleaving the raw material containing graphite with a jet flow, and thus may suffer no contamination due to the absence of contamination with other substances, and thus graphene having high purity and good quality in the form of fine particles may be obtained.
    Type: Application
    Filed: December 17, 2013
    Publication date: September 29, 2016
    Applicant: Graphene Platform Corporation
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20160251529
    Abstract: Provided is a graphite-based carbon material useful as a graphene precursor, from which graphene is easily exfoliated when the graphite-based carbon material is useful as a precursor and from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material is a graphite-based carbon material useful as a graphene precursor wherein a Rate (3R) based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Application
    Filed: September 23, 2015
    Publication date: September 1, 2016
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Publication number: 20160251530
    Abstract: Provided is a graphite-based carbon material useful as a graphene precursor, from which graphene is easily exfoliated when the graphite-based carbon material is useful as a precursor and from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material is a graphite-based carbon material useful as a graphene precursor wherein a Rate (3R) based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate(3R)=P3/(P3+P4)×100??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Application
    Filed: December 17, 2015
    Publication date: September 1, 2016
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9428393
    Abstract: Provided is a graphite-based carbon material useful as a graphene precursor, from which graphene is easily exfoliated when the graphite-based carbon material is useful as a precursor and from which a highly-concentrated graphene dispersion can easily be obtained. The graphite-based carbon material is a graphite-based carbon material useful as a graphene precursor wherein a Rate (3R) based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 30, 2016
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya
  • Patent number: 9404058
    Abstract: A composite lubricating material including at least a graphite-based carbon material and/or graphene-like graphite exfoliated from the graphite-based carbon material dispersed in a base material. The graphite-based carbon material is characterized by having a rhombohedral graphite layer (3R) and a hexagonal graphite layer (2H), wherein a Rate (3R) of the rhombohedral graphite layer (3R) and the hexagonal graphite layer (2H), based on an X-ray diffraction method, which is defined by following Equation 1 is 31% or more: Rate (3R)=P3/(P3+P4)×100 ??Equation 1 wherein P3 is a peak intensity of a (101) plane of the rhombohedral graphite layer (3R) based on the X-ray diffraction method, and P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2H) based on the X-ray diffraction method.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: August 2, 2016
    Assignee: GRAPHENE PLATFORM CORPORATION
    Inventors: Shoji Hasegawa, Nagisa Kamiya