Patents by Inventor Yasuhiko Oosawa

Yasuhiko Oosawa 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 with a phase-separated binder that includes a vinylidene fluoride binder polymer and a polyether polar polymer with a lithium salt
    Patent number: 7462420
    Abstract: An electrode for an all solid polymer battery comprises electrode active material particles which can absorb and release lithium ion through oxidation-reduction, a binder polymer, a polar polymer, and lithium salt. Herewith, the electrode for the all solid polymer battery, in which the cycle durability of the electrode is greatly improved, is provided.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: December 9, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiko Oosawa, Yasunari Hisamitsu
  • Bipolar battery with flexible insulation film
    Patent number: 7220516
    Abstract: A bipolar battery comprises a bipolar electrode having a positive electrode layer on one side of a collecting foil and a negative electrode layer on the other side of the collecting foil, and a polymer electrolyte layer disposed between the bipolar electrodes. In the bipolar battery, an insulation layer is provided on a periphery of at least one side of the collecting foil.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: May 22, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiko Oosawa, Ryouichi Senbokuya
  • Electrode for all solid polymer battery and method for manufacturing the same
    Publication number: 20040101752
    Abstract: An electrode for an all solid polymer battery comprises electrode active material particles which can absorb and release lithium ion through oxidation-reduction, a binder polymer, a polar polymer, and lithium salt. Herewith, the electrode for the all solid polymer battery, in which the cycle durability of the electrode is greatly improved, is provided.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 27, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Oosawa, Yasunari Hisamitsu
  • Bipolar battery
    Publication number: 20040067417
    Abstract: A bipolar battery comprises a bipolar electrode having a positive electrode layer on one side of a collecting foil and a negative electrode layer on the other side of the collecting foil, and a polymer electrolyte layer disposed between the bipolar electrodes. In the bipolar battery, an insulation layer is provided on a periphery of at least one side of the collecting foil.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 8, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Oosawa, Ryouichi Senbokuya