Patents by Inventor Masayuku Takeda

Masayuku Takeda 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).

  • Electrolyte for electrolytic capacitor and electrolytic capacitor using the same
    Patent number: 7072173
    Abstract: An electrolyte for an electrolytic capacitor which is high in electrolytic conductivity, excellent in heat stability and high in withstand voltage. An electrolyte for an electrolytic capacitor including a tetrafluoroaluminate ion; and an electrolyte for an electrolytic capacitor containing a salt and a solvent, characterized in that electrolytic conductivity X (mS·cm?1) at 25° C. and withstand voltage Y (V) of a capacitor satisfy the relationships of formulae (I):Y??7.5X+150, and X?4, Y>0.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: July 4, 2006
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masayuku Takeda, Masahiro Takehara, Makoto Ue