Patents by Inventor Syoichi Imashiku

Syoichi Imashiku 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).

  • Method for producing non-aqueous electrolyte secondary battery
    Patent number: 7914930
    Abstract: A non-aqueous electrolyte secondary battery having both high capacity and long-life is provided by solving the problem of the large irreversible capacity of a negative electrode active material. The non-aqueous electrolyte secondary battery is produced by a method including the steps of: reacting lithium with a negative electrode active material by bringing a metal film that is composed mainly of lithium into contact with a surface of a negative electrode active material layer; and thereafter combining the negative electrode with a positive electrode to form an electrode assembly. The metal film composed mainly of lithium is preferably formed on a carrier that does not chemically react with lithium, and the metal film on the carrier is preferably brought into contact with the negative electrode active material layer while heating and applying a pressure thereto.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 29, 2011
    Assignee: Panasonic Corporation
    Inventors: Toshitada Sato, Hideharu Takezawa, Syoichi Imashiku, Kazuyoshi Honda
  • Non-aqueous electrolyte secondary battery and method for producing the same
    Publication number: 20070204457
    Abstract: A non-aqueous electrolyte secondary battery having both high capacity and long-life is provided by solving the problem of the large irreversible capacity of a negative electrode active material. The non-aqueous electrolyte secondary battery is produced by a method including the steps of: reacting lithium with a negative electrode active material by bringing a metal film that is composed mainly of lithium into contact with a surface of a negative electrode active material layer; and thereafter combining the negative electrode with a positive electrode to form an electrode assembly. The metal film composed mainly of lithium is preferably formed on a carrier that does not chemically react with lithium, and the metal film on the carrier is preferably brought into contact with the negative electrode active material layer while heating and applying a pressure thereto.
    Type: Application
    Filed: November 16, 2006
    Publication date: September 6, 2007
    Inventors: Toshitada Sato, Hideharu Takezawa, Syoichi Imashiku, Kazuyoshi Honda