Patents by Inventor Kiyotsugu Okuda

Kiyotsugu Okuda 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 lithium secondary battery, method for manufacturing stacked battery, and method for manufacturing composite body
    Patent number: 9039789
    Abstract: The whole of a conductive material layer is formed on a bonding surface of an outer film having flexibility and barrier properties to prepare a composite body in which the conductive material layer is integrated with the outer film. A current collector is located within an application region, and at least a part of an electrode terminal is located outside the application region. A positive electrode active material precursor layer, an electrolyte precursor layer, and a negative electrode active material precursor layer are added to the composite body with plane positions thereof aligned with that of the current collector. These precursor layers are subjected to a crosslinking process. The application regions are applied, and the outer films are bonded, to seal a cell. The crosslinking process may be omitted.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: May 26, 2015
    Assignee: Mie Industry and Enterprise Support Center
    Inventors: Yasuo Takeda, Nobuyuki Imanishi, Takahito Itoh, Takahiro Uno, Akira Itsubo, Eiichi Nomura, Shigemitsu Katoh, Kiyotsugu Okuda
  • METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING STACKED BATTERY, AND METHOD FOR MANUFACTURING COMPOSITE BODY
    Publication number: 20130000110
    Abstract: The whole of a conductive material layer is formed on a bonding surface of an outer film having flexibility and barrier properties to prepare a composite body in which the conductive material layer is integrated with the outer film. A current collector is located within an application region, and at least a part of an electrode terminal is located outside the application region. A positive electrode active material precursor layer, an electrolyte precursor layer, and a negative electrode active material precursor layer are added to the composite body with plane positions thereof aligned with that of the current collector. These precursor layers are subjected to a crosslinking process. The application regions are applied, and the outer films are bonded, to seal a cell. The crosslinking process may be omitted.
    Type: Application
    Filed: December 7, 2011
    Publication date: January 3, 2013
    Applicant: Mie Industry and Enterprise Support Center
    Inventors: Yasuo Takeda, Nobuyuki Imanishi, Takahito Itoh, Takahiro Uno, Akira Itsubo, Eiichi Nomura, Shigemitsu Katoh, Kiyotsugu Okuda
  • SOLID ELECTROLYTE COMPOSITION, SOLID ELECTROLYTE, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR PRODUCING LITHIUM ION SECONDARY BATTERY
    Publication number: 20120315547
    Abstract: This invention relates to a matrix of a solid electrolyte having a microstructure in which a non-reactive polyalkylene glycol is held on a co-crosslinked product produced by chemically co-crosslinking a hyperbranched polymer with a crosslinkable ethylene oxide multicomponent copolymer, such that a lithium salt is dissolved in the matrix. A negative electrode active material layer is a layer obtained by dispersing a negative electrode active material and a conduction aid in a lithium-ion conducting solid electrolyte. A positive electrode active material layer is a layer obtained by dispersing a positive electrode active material and a conduction aid in a lithium-ion conducting solid electrolyte.
    Type: Application
    Filed: February 9, 2011
    Publication date: December 13, 2012
    Applicant: MIE UNIVERSITY
    Inventors: Takahito Itoh, Takahiro Uno, Yasuo Takeda, Nobuyuki Imanishi, Akira Itsubo, Eiichi Nomura, Shigemitsu Katoh, Kiyotsugu Okuda