Patents by Inventor Shinji Otsubo

Shinji Otsubo 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).

  • Patent number: 7501202
    Abstract: A lithium secondary cell includes an internal electrode body having a positive electrode plate and a negative electrode plate wound and laminated around an external peripheral wall of a hollow cylindrical winding core. The inside of the internal electrode body is impregnated with a nonaqueous electrolyte solution. A cylindrical cell case houses the internal electrode body and has open ends sealed with plate member electrode caps. An external terminal member protrudes onto the surface of the electrode caps to lead current to the outside of the cell case, and an internal terminal member connects with the internal electrode body to take current from the internal electrode body. An elastic body and at least two of the plate member, the external terminal member and the internal terminal member are joined together for construction. An assembly of lithium secondary cells is also disclosed.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: March 10, 2009
    Assignee: NGK Insulators, Ltd.
    Inventors: Akio Enomoto, Kenji Kawamura, Kenshin Kitoh, Toshihiro Yoshida, Hiroshi Nemoto, Shinji Otsubo
  • Publication number: 20050100785
    Abstract: A lithium secondary cell includes an internal electrode body having a positive electrode plate and a negative electrode plate wound and laminated around an external peripheral wall of a hollow cylindrical winding core. The inside of the internal electrode body is impregnated with a nonaqueous electrolyte solution. A cylindrical cell case houses the internal electrode body and has open ends sealed with plate member electrode caps. An external terminal member protrudes onto the surface of the electrode caps to lead current to the outside of the cell case, and an internal terminal member connects with the internal electrode body to take current from the internal electrode body. An elastic body and at least two of the plate member, the external terminal member and the internal terminal member are joined together for construction. An assembly of lithium secondary cells is also disclosed.
    Type: Application
    Filed: December 13, 2004
    Publication date: May 12, 2005
    Applicant: NGK Insulators, Ltd.
    Inventors: Akio Enomoto, Kenji Kawamura, Kenshin Kitoh, Toshihiro Yoshida, Hiroshi Nemoto, Shinji Otsubo
  • Patent number: 6844110
    Abstract: To provide a lithium secondary cell, which is excellent in productivity since a cell structure is simple and easy for assembly. Provided is a lithium secondary cell having: an internal electrode body including a positive electrode plate, a negative electrode plate, the positive electrode plate and the negative electrode plate being wound and laminated around an external periphery wall of a hollow cylindrical winding core, and inside the internal electrode body a nonaqueous electrolyte solution being impregnated, a cylindrical cell case contained in this internal electrode body 1 with both ends being opened, and two electrode caps sealing the above described internal electrode body 1 at both the open ends of this cell case.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: January 18, 2005
    Assignee: NGK Insulators, Ltd.
    Inventors: Akio Enomoto, Kenji Kawamura, Kenshin Kitoh, Toshihiro Yoshida, Hiroshi Nemoto, Shinji Otsubo
  • Publication number: 20010049054
    Abstract: To provide a lithium secondary cell, which is excellent in productivity since a cell structure is simple and easy for assembly. Provided is a lithium secondary cell having: an internal electrode body including a positive electrode plate, a negative electrode plate, the positive electrode plate and the negative electrode plate being wound and laminated around an external periphery wall of a hollow cylindrical winding core, and inside the internal electrode body a nonaqueous electrolyte solution being impregnated, a cylindrical cell case contained in this internal electrode body 1 with both ends being opened, and two electrode caps sealing the above described internal electrode body 1 at both the open ends of this cell case.
    Type: Application
    Filed: May 22, 2001
    Publication date: December 6, 2001
    Applicant: NGK Insulators, Ltd.
    Inventors: Akio Enomoto, Kenji Kawamura, Kenshin Kitoh, Toshihiro Yoshida, Hiroshi Nemoto, Shinji Otsubo