Patents by Inventor Shuuko Yamauchi

Shuuko Yamauchi 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).

  • Lithium secondary battery
    Patent number: 7074523
    Abstract: The present invention provides a lithium secondary battery comprising a nonaqueous electrolytic solution containing a compound which is oxidized at a voltage higher than a charge end voltage of the lithium secondary battery and a compound which inhibits reactions at voltages lower than said charge end voltage.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: July 11, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Juichi Arai, Shuuko Yamauchi, Mitsuru Kobayashi
  • Lithium secondary battery
    Publication number: 20040106039
    Abstract: The present invention provides a lithium secondary battery comprising a nonaqueous electrolytic solution containing a compound which is oxidized at a voltage higher than a charge end voltage of the lithium secondary battery and a compound which inhibits reactions at voltages lower than said charge end voltage.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 3, 2004
    Inventors: Juichi Arai, Shuuko Yamauchi, Mitsuru Kobayashi
  • Lithium secondary battery
    Publication number: 20030003370
    Abstract: The present invention provides a lithium secondary battery comprising a nonaqueous electrolytic solution containing a compound which is oxidized at a voltage higher than a charge end voltage of the lithium secondary battery and a compound which inhibits reactions at voltages lower than said charge end voltage.
    Type: Application
    Filed: August 14, 2001
    Publication date: January 2, 2003
    Inventors: Juichi Arai, Shuuko Yamauchi, Mitsuru Kobayashi