Patents by Inventor Masakatsu Kujira

Masakatsu Kujira 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).

  • Solid electrolyte, electrochemical device, lithium ion secondary battery, and electric double-layer capacitor
    Patent number: 6669860
    Abstract: A solid electrolyte comprises a microporous film having high crystallizability and excellent solvent resistance. The microporous film is controlled by a wet phase inversion method to a porosity of 50% or greater and a pore diameter of 0.02 &mgr;m to 1 &mgr;m inclusive. The solid electrolyte may be used to construct an electrochemical device, a lithium ion secondary battery and an electric double-layer capacitor.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: December 30, 2003
    Assignees: TDK Corporation, Toyo Roshi Kaisha, Ltd.
    Inventors: Satoshi Maruyama, Hisashi Suzuki, Kozo Sakurai, Masakatsu Kujira, Takamasa Yamamoto