Patents by Inventor Tsuyoshi Sugano

Tsuyoshi Sugano 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).

  • Mercury-containing copper oxide superconductor
    Patent number: 6699819
    Abstract: A superconductor having at least one Hg—M—Cu—O (M=Ba, Sr and/or Ca) superconducting film provided on a substrate and having a thickness of between 300 Å to 950 Å. The superconductor may be prepared by forming, on a substrate, a precursor laminate composed of a first, M—Cu—O film and a second, Hg—O film. The precursor laminate film-bearing substrate is placed in a closed vacuum chamber together with a first pellet of HgO, MO and CuO and a second pellet of MO and CuO. The contents in the chamber are heated to form, on the substrate, a superconducting Hg—M—Cu—O film. The thickness of the first M—Cu—O film of the precursor is controlled so that the thickness of the superconducting Hg—M—Cu—O film is in the range of between 300 Å to 950 Å.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: March 2, 2004
    Assignees: International Superconductivity Technology Center, The Chugoku Electric Power Co., Inc.
    Inventors: Nobuyoshi Inoue, Tsuyoshi Sugano, Seiji Adachi, Keiichi Tanabe
  • Mercury-containing copper oxide superconductor and method of producing same
    Publication number: 20030217456
    Abstract: A superconductor having at least one Hg-M-Cu—O (M=Ba, Sr and/or Ca) superconducting film provided on a substrate and having a thickness of between 300 Å to 950 Å. The superconductor may be prepared by forming, on a substrate, a precursor laminate composed of a first, M-Cu—O film and a second, Hg—O film. The precursor laminate film-bearing substrate is placed in a closed vacuum chamber together with a first pellet of HgO, MO and CuO and a second pellet of MO and CuO. The contents in the chamber are heated to form, on the substrate, a superconducting Hg-M-Cu—O film. The thickness of the first M-Cu—O film of the precursor is controlled so that the thickness of the superconducting Hg-M-Cu—O film is in the range of between 300 Å to 950 Å.
    Type: Application
    Filed: May 27, 2003
    Publication date: November 27, 2003
    Inventors: Nobuyoshi Inoue, Tsuyoshi Sugano, Seiji Adachi, Keiichi Tanabe
  • Mercury-containing copper oxide superconductor and method of producing same
    Patent number: 6606780
    Abstract: A superconductor having at least one Hg—M—Cu—O (M=Ba, Sr and/or Ca) superconducting film provided on a substrate and having a thickness of between 300 Å to 950 Å. The superconductor may be prepared by forming, on a substrate, a precursor laminate composed of a first, M—Cu—O film and a second, Hg—O film. The precursor laminate film-bearing substrate is placed in a closed vacuum chamber together with a first pellet of HgO, MO and CuO and a second pellet of MO and CuO. The contents in the chamber are heated to form, on the substrate, a superconducting Hg—M—Cu—O film. The thickness of the first M—Cu—O film of the precursor is controlled so that the thickness of the superconducting Hg—M—Cu—O film is in the range of between 300 Å to 950 Å.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: August 19, 2003
    Assignees: International Superconductivity Technology Center, The Chugoku Electric Power Co., Inc.
    Inventors: Nobuyoshi Inoue, Tsuyoshi Sugano, Seiji Adachi, Keiichi Tanabe