Patents by Inventor Futoshi Kubo

Futoshi Kubo 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).

  • Electrode for lithium secondary battery and lithium secondary battery using same
    Patent number: 8080337
    Abstract: The present invention has an object of providing a lithium secondary battery and an electrode for a lithium secondary battery having a superb cycle characteristic. The present invention relates to an electrode for a lithium secondary battery, and a lithium secondary battery including the electrode, the electrode including a current collector and an active substance structure provided on the current collector, wherein the active substance structure includes at least one first layer containing a first material for occluding and releasing lithium ions and at least one second layer containing a conductive second material which does not chemically react with lithium; the first layer and the second layer are alternately laminated; and the second layer has a Young's modulus larger than the Young's modulus of the first layer.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: December 20, 2011
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Higuchi, Masayoshi Hiramoto, Futoshi Kubo
  • ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING SAME
    Publication number: 20100086857
    Abstract: The present invention has an object of providing a lithium secondary battery and an electrode for a lithium secondary battery having a superb cycle characteristic. The present invention relates to an electrode for a lithium secondary battery, and a lithium secondary battery including the electrode, the electrode including a current collector and an active substance structure provided on the current collector, wherein the active substance structure includes at least one first layer containing a first material for occluding and releasing lithium ions and at least one second layer containing a conductive second material which does not chemically react with lithium; the first layer and the second layer are alternately laminated; and the second layer has a Young's modulus larger than the Young's modulus of the first layer.
    Type: Application
    Filed: December 27, 2006
    Publication date: April 8, 2010
    Inventors: Hiroshi Higuchi, Masayoshi Hiramoto, Futoshi Kubo