Patents by Inventor Shujun YE

Shujun YE 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 for manufacturing base material powder having carbon nano-coating layer, method for manufacturing MgB2 superconductor using the method, MgB2 superconductor, method for manufacturing positive electrode material for lithium ion battery, lithium ion battery, and method for manufacturing photocatalyst
    Patent number: 10431823
    Abstract: Provided is a method for manufacturing a base material powder having a carbon nanocoating layer, the method including adding a polycyclic aromatic hydrocarbon to a base material powder, heating the mixture to a temperature that is higher than or equal to the boiling point of the polycyclic aromatic hydrocarbon and is lower than or equal to the relevant boiling point temperature+300° C., and that is higher than or equal to the thermal decomposition temperature of the polycyclic aromatic hydrocarbon, and thereby coating the surface of the base material powder with a layer of carbon having a thickness of 0.1 nm to 10 nm.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 1, 2019
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroaki Kumakura, Shujun Ye, Akira Hasegawa, Yoshimi Kubo, Eiki Yasukawa, Akihiro Nomura
  • METHOD FOR MANUFACTURING BASE MATERIAL POWDER HAVING CARBON NANO-COATING LAYER, METHOD FOR MANUFACTURING MgB2 SUPERCONDUCTOR USING THE METHOD, MgB2 SUPERCONDUCTOR, METHOD FOR MANUFACTURING POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY, LITHIUM ION BATTERY, AND METHOD FOR MANUFACTURING PHOTOCATALYST
    Publication number: 20170263932
    Abstract: Provided is a method for manufacturing a base material powder having a carbon nanocoating layer, the method including adding a polycyclic aromatic hydrocarbon to a base material powder, heating the mixture to a temperature that is higher than or equal to the boiling point of the polycyclic aromatic hydrocarbon and is lower than or equal to the relevant boiling point temperature +300° C., and that is higher than or equal to the thermal decomposition temperature of the polycyclic aromatic hydrocarbon, and thereby coating the surface of the base material powder with a layer of carbon having a thickness of 0.1 nm to 10 nm.
    Type: Application
    Filed: July 30, 2015
    Publication date: September 14, 2017
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroaki KUMAKURA, Shujun YE, Akira HASEGAWA, Yoshimi KUBO, Eiki YASUKAWA, Akihiro NOMURA
  • Method for manufacturing MgBsuperconductor, and MgBsuperconductor
    Patent number: 9741472
    Abstract: Provided are a method for manufacturing MgB2 superconductor by pressure molding a mixture of Mg powder or MgH2 powder and B powder and heat-treating the mixture, the method including (I) a step of adding a polycyclic aromatic hydrocarbon to the B powder, while heating the mixture to a temperature higher to or equal to the melting point of the polycyclic aromatic hydrocarbon at the time of this addition, and thereby covering the surface of the B powder with the polycyclic aromatic hydrocarbon; and (II) a step of mixing the B powder having the surface covered with the polycyclic aromatic hydrocarbon, with the Mg powder or the MgH2 powder, or a step of combining the B powder having the surface covered with the polycyclic aromatic hydrocarbon, with an Mg rod; and an MgB2 superconducting wire which has high critical current density (Jc) characteristics and less fluctuation in the critical current density (Jc).
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: August 22, 2017
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroaki Kumakura, Akiyoshi Matsumoto, Shujun Ye
  • METHOD FOR MANUFACTURING MGB2 SUPERCONDUCTOR, AND MGB2 SUPERCONDUCTOR
    Publication number: 20160314877
    Abstract: Provided are a method for manufacturing MgB2 superconductor by pressure molding a mixture of Mg powder or MgH2 powder and B powder and heat-treating the mixture, the method including (I) a step of adding a polycyclic aromatic hydrocarbon to the B powder, while heating the mixture to a temperature higher to or equal to the melting point of the polycyclic aromatic hydrocarbon at the time of this addition, and thereby covering the surface of the B powder with the polycyclic aromatic hydrocarbon; and (II) a step of mixing the B powder having the surface covered with the polycyclic aromatic hydrocarbon, with the Mg powder or the MgH2 powder, or a step of combining the B powder having the surface covered with the polycyclic aromatic hydrocarbon, with an Mg rod; and an MgB2 superconducting wire which has high critical current density (Jc) characteristics and less fluctuation in the critical current density (Jc).
    Type: Application
    Filed: December 16, 2014
    Publication date: October 27, 2016
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroaki KUMAKURA, Akiyoshi MATSUMOTO, Shujun YE