Patents by Inventor Ichirou Igarashi

Ichirou Igarashi 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).

  • Binder containing vinyl alcohol polymer, slurry, electrode, and secondary battery with nonaqueous electrolyte
    Patent number: 6573004
    Abstract: A binder for an electrode of a non-aqueous electrolyte secondary battery comprising a vinyl alcohol polymer having 30 to 95% by weight of recurring units expressed by the following formula (1): A slurry containing this binder, an active material and a liquid medium is used to produce an electrode. A non-aqueous electrolyte secondary battery having the electrode as a positive electrode and/or a negative electrode exhibits a minimized reduction in capacity at repeated charge-discharge cycles.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: June 3, 2003
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Ichirou Igarashi, Keiko Imai, Kouichirou Maeda