Patents by Inventor Akiyuki Matsushita

Akiyuki Matsushita 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).

  • MgB2 superconductor and method for preparation thereof
    Patent number: 7338921
    Abstract: An electrode is steeped in a solution of Mg and B and a negative voltage is applied to the electrode so as to precipitate superconductive MgB2 on the electrode. Superconductive MgB2 is easily manufactured in various forms and at low costs without any special device.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: March 4, 2008
    Assignee: National Institute for Materials Science
    Inventors: Hideki Abe, Hideaki Kitazawa, Akiyuki Matsushita
  • 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
  • MgB2 superconductor and method for preparation thereof
    Publication number: 20040180792
    Abstract: An electrode is steeped in a solution of Mg and B and a negative voltage is applied to the electrode so as to precipitate superconductive MgB2 on the electrode. Superconductive MgB2 is easily manufactured in various forms and at low costs without any special device.
    Type: Application
    Filed: April 29, 2004
    Publication date: September 16, 2004
    Inventors: Hideki Abe, Hideaki Kitazawa, Akiyuki Matsushita
  • 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