Patents by Inventor Syozo Hashizume

Syozo Hashizume 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).

  • Composite active material and process for the production thereof, electrode and process for the production thereof, and non-aqueous electrolyte battery
    Patent number: 6730404
    Abstract: The high rate discharge performance and cyclability are improved. A battery having a hich capacity density and excellent cyclability and safety performance can be produced. A composite active material provided with a polymer on the surface of a carbon-based active material in an amount of from 0.01% to 5% by weight is used. Further, a composite active material provided with a polymer on the surface of a carbon-based active material in an amount of from 0.04 to 4% by weight is used. In particular, the former composite active material is used as a positive active material while the latter composite active material is used as a negative active material to obtain a non-aqueous electrolyte battery.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: May 4, 2004
    Assignees: Japan Storage Battery Co., Ltd., The Kansai Electric Power Co., Ltd.
    Inventors: Isao Suzuki, Shuji Hitomi, Syozo Hashizume, Eriko Yagasaki