Patents by Inventor Yoshihiro Chiba

Yoshihiro Chiba 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).

  • Rolled copper foil for producing two-dimensional hexagonal lattice compound and method of producing two-dimensional hexagonal lattice compound
    Patent number: 9840757
    Abstract: A rolled copper foil for producing a two-dimensional hexagonal lattice compound, including P: 0.01 to 0.21 wt %, Fe: 0.006 wt % or less, and the balance being Cu and inevitable impurities, and having the following relationship: 2.0<=(I/I0) where I is a (111) diffraction intensity determined by an X ray diffraction of a rolled surface after heating at 1000° C. for 30 minutes and I0 is a (111) diffraction intensity determined by an X ray diffraction of fine powder copper.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: December 12, 2017
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Yoshihiro Chiba
  • Copper foil for producing graphene and method of producing graphene using the same
    Patent number: 9487404
    Abstract: A copper foil for producing graphene, including oxides and sulfides each having a diameter of 0.5 ?m or more having a total number of 15/mm2 or less measured by using a scanning electronic microscope before heating at 1000° C. for 1 hour.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: November 8, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshihiro Chiba, Tatsuya Yamaji
  • Copper foil for producing graphene and method of producing graphene using the same
    Patent number: 9359212
    Abstract: A copper foil for producing graphene including Cu having a purity of 99.95% by mass or more.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: June 7, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshihiro Chiba, Toshiyuki Ono
  • Copper foil for producing graphene and method of producing graphene using the same
    Patent number: 9260310
    Abstract: A copper foil for producing graphene, having 60 degree gloss of 500% in a rolling direction and a direction transverse to rolling direction, and an average crystal grain size of 200 ?m or more after heating at 1000° C. for 1 hour in an atmosphere containing 20% by volume or more of hydrogen and balance argon.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: February 16, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Yoshihiro Chiba
  • Copper foil for producing graphene and method of producing graphene using the same
    Patent number: 9255007
    Abstract: A copper foil for producing graphene, including oxides and sulfides each having a diameter of 0.5 ?m or more having a total number of 15/mm2 or less measured by using a scanning electronic microscope before heating at 1000° C. for 1 hour in an atmosphere containing 20% by volume or more of hydrogen and balance argon.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: February 9, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yoshihiro Chiba, Tatsuya Yamaji
  • ROLLED COPPER FOIL FOR PRODUCING TWO-DIMENSIONAL HEXAGONAL LATTICE COMPOUND AND METHOD OF PRODUCING TWO-DIMENSIONAL HEXAGONAL LATTICE COMPOUND
    Publication number: 20150361584
    Abstract: A rolled copper foil for producing a two-dimensional hexagonal lattice compound, including P: 0.01 to 0.21 wt %, Fe: 0.006 wt % or less, and the balance being Cu and inevitable impurities, and having the following relationship: 2.0<=(I/I0) where I is a (111) diffraction intensity determined by an X ray diffraction of a rolled surface after heating at 1000° C. for 30 minutes and I0 is a (111) diffraction intensity determined by an X ray diffraction of fine powder copper.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventor: Yoshihiro Chiba
  • ROLLED COPPER FOIL FOR PRODUCING GRAPHENE AND METHOD OF PRODUCING GRAPHENE USING THE SAME
    Publication number: 20150232342
    Abstract: A rolled copper foil for producing graphene, wherein a ratio (IC/IA) of a maximum value of a detected intensity (IC) at ?=15 degrees and ?=90 degrees±2 degrees and a maximum value of a detected intensity (IA) at ?=70 degrees and ?=0 degree±2 degrees is less than 1, and a ratio (ID/IB) of a maximum value of a detected intensity (ID) at ?=15 degrees and ?=270 degrees±2 degrees and a maximum value of a detected intensity (IB) at ?=70 degrees and ?=180 degrees±2 degrees is less than 1, shown in {111} pole figure.
    Type: Application
    Filed: July 8, 2013
    Publication date: August 20, 2015
    Inventor: Yoshihiro Chiba
  • COPPER FOIL FOR PRODUCING GRAPHENE AND METHOD OF PRODUCING GRAPHENE USING THE SAME
    Publication number: 20140353278
    Abstract: A copper foil for producing graphene including Cu having a purity of 99.95% by mass or more.
    Type: Application
    Filed: October 31, 2012
    Publication date: December 4, 2014
    Applicant: JX NIPPON MINING & METALS CORPORATION
    Inventors: Yoshihiro Chiba, Toshiyuki Ono
  • COPPER FOIL FOR PRODUCING GRAPHENE, PRODUCTION METHOD THEREOF AND METHOD OF PRODUCING GRAPHENE
    Publication number: 20140246399
    Abstract: A copper foil for producing graphene having a ratio (Ra1/Ra2) between an arithmetic mean roughness Ra1 in a rolling direction and an arithmetic mean roughness Ra2 in a direction transverse to rolling direction of 0.7 <=(Ra1/Ra2) <=1.3.
    Type: Application
    Filed: October 26, 2012
    Publication date: September 4, 2014
    Applicant: JX Nippon Mining & Metals Corporation
    Inventor: Yoshihiro Chiba
  • COPPER FOIL FOR PRODUCING GRAPHENE AND METHOD OF PRODUCING GRAPHENE USING THE SAME
    Publication number: 20140216650
    Abstract: A copper foil for producing graphene, having 60 degree gloss of 500% in a rolling direction and a direction transverse to rolling direction, and an average crystal grain size of 200 ?m or more after heating at 1000° C. for 1 hour in an atmosphere containing 20% by volume or more of hydrogen and balance argon.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 7, 2014
    Applicant: JX Nippon Mining & Metals Corporation
    Inventor: Yoshihiro Chiba
  • COPPER FOIL FOR PRODUCING GRAPHENE AND METHOD OF PRODUCING GRAPHENE USING THE SAME
    Publication number: 20140196841
    Abstract: A copper foil for producing graphene, including oxides and sulfides each having a diameter of 0.5 ?m or more having a total number of 15/mm2 or less measured by using a scanning electronic microscope before heating at 1000° C. for 1 hour.
    Type: Application
    Filed: April 9, 2012
    Publication date: July 17, 2014
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Yoshihiro Chiba, Tatsuya Yamaji
  • COPPER FOIL FOR PRODUCING GRAPHENE AND METHOD OF PRODUCING GRAPHENE USING THE SAME
    Publication number: 20140183160
    Abstract: A copper foil for producing graphene, including oxides and sulfides each having a diameter of 0.5 ?m or more having a total number of 15/mm2 or less measured by using a scanning electronic microscope before heating at 1000° C. for 1 hour in an atmosphere containing 20% by volume or more of hydrogen and balance argon.
    Type: Application
    Filed: May 31, 2012
    Publication date: July 3, 2014
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Yoshihiro Chiba, Tatsuya Yamaji
  • Copper foil for producing graphene and method of producing graphene using the same
    Patent number: RE47195
    Abstract: A copper foil for producing graphene, having 60 degree gloss of 500% or more in a rolling direction and a direction transverse to the rolling direction, and an average crystal grain size of 200 ?m or more after heating at 1000° C. for 1 hour in an atmosphere containing 20% by volume or more of hydrogen and balance argon.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: January 8, 2019
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Yoshihiro Chiba