Patents by Inventor Noriki Ushio

Noriki Ushio 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 driving electrolytic capacitors and capacitor using the same
    Patent number: 5177673
    Abstract: An electrolyte for driving electrolytic capacitors and electrolytic capacitors using the electrolyte are described. The electrolyte comprises at least one quaternary ammonium salt of aliphatic saturated dicarboxylic acid having from 6 to 10 carbon atoms in total or a quaternary ammonium salt of glutaric acid, dissolved in a solvent comprised of an aliphatic polyol. When applied to an electrolytic capacitor, the electrolyte ensures improvements in loss characteristic and high temperature characteristics with time. Thus, the capacitor has a prolonged life.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: January 5, 1993
    Assignees: Matsushita Electric Industrial Co., Ltd., Sanyo Chemical Industries, Ltd.
    Inventors: Hisao Nagara, Hideki Shimamoto, Keiji Mori, Noriki Ushio, Katsuji Shiono, Takaaki Kishi
  • Electrolyte for use in electrolytic capacitors
    Patent number: 5055974
    Abstract: An electrolyte for use in electrolytic capacitors is provided. The electrolyte comprises a specified quaternary ammonium salt of a boric acid complex as a solute. A capacitor in which the electrolyte is used displays stable electrical characteristics at high temperatures as well as high sparking voltage and long life.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: October 8, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yukari Washio, Nobuhiro Takeishi, Hideki Shimamoto, Keiji Mori, Noriki Ushio, Katsuji Shiono, Takaaki Kishi, Hideo Samura