Patents by Inventor Junichiro Mizuki

Junichiro Mizuki 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).

  • Method of manufacturing MgBsuperconducting material
    Patent number: 7294250
    Abstract: A very small amount of copper chloride or zinc oxide is added to a mixture of magnesium chloride, potassium chloride, sodium chloride and magnesium borate, a mixed salt is melted under heat, electrodes are inserted into a molten salt and a metallic material employed as a cathode is electroplated with a magnesium diboride (MgB2) film.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: November 13, 2007
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Hideki Abe, Hideaki Kitazawa, Kenji Yoshii, Junichiro Mizuki
  • Method for electrochemical synthesis of superconducting boron compound MgB
    Patent number: 7060174
    Abstract: A method for electrochemical synthesis of a superconducting boron compound MgB2 which comprises the steps of preparing a powder mixture of magnesium chloride, sodium chloride, potassium chloride and magnesium borate, drying the mixture by electrical heating at a temperature of 400° C. or below under an inert gas atmosphere, and further heating the mixture electrically at a temperature of 400° C. or above so that it is melted and undergoes chemical reaction.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: June 13, 2006
    Assignees: Japan Atomic Energy Research Institute, National Institute for Materials Science
    Inventors: Kenji Yoshii, Junichiro Mizuki, Hideki Abe, Hideaki Kitazawa, Akiyuki Matsushita
  • Method of manufacturing MgB2 superconducting material
    Publication number: 20050034992
    Abstract: A very small amount of copper chloride or zinc oxide is added to a mixture of magnesium chloride, potassium chloride, sodium chloride and magnesium borate, a mixed salt is melted under heat, electrodes are inserted into a molten salt and a metallic material employed as a cathode is electroplated with a magnesium diboride (MgB2) film.
    Type: Application
    Filed: June 8, 2004
    Publication date: February 17, 2005
    Inventors: Hideki Abe, Hideaki Kitazawa, Kenji Yoshii, Junichiro Mizuki
  • Method for electrochemical synthesis for superconducting boron compound MgB2
    Publication number: 20030150744
    Abstract: A method for electrochemical synthesis of a superconducting boron compound MgB2 which comprises the steps of preparing a powder mixture of magnesium chloride, sodium chloride, potassium chloride and magnesium borate, drying the mixture by electrical heating at a temperature of 400° C. or below under an inert gas atmosphere, and further heating the mixture electrically at a temperature of 400° C. or above so that it is melted and undergoes chemical reaction.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 14, 2003
    Applicant: Japan Atomic Energy Research Institute
    Inventors: Kenji Yoshii, Junichiro Mizuki, Hideki Abe, Hideaki Kitazawa, Akiyuki Matsushita
  • Superconducting material comprising Rb.sub.x Cs.sub.y C.sub.60.
    Patent number: 5294600
    Abstract: A superconducting material higher in superconducting transition temperature and superconducting volume ratio than any conventional one is provided, which comprises a fullerene doped with rubidium and cesium. This fullerene system superconducting material makes it possible to improve both the superconducting transition temperature and superconducting volume ratio by having rubidium and cesium doped thereinto compared with any conventional fullerene systems. If the chemical composition of this super conducting material is expressed as Rb.sub.x Cs.sub.y C.sub.n, x and y are arbitrary if an equation x+y=3 is satisfied, preferable to be x=2 and y=1, further preferable to be x=1 and y=s. The superconducting transition temperature Tc and superconducting volume ratio when x=1 and y=2 or x=2 and y=1 are superior to those when x=3 and y=0 or x=0 and y=3, respectively.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: March 15, 1994
    Assignee: NEC Corporation
    Inventors: Katsumi Tanigaki, Thomas Ebbesen, Sadanori Kuroshima, Junichiro Mizuki