Patents by Inventor Tsuyoshi Nagaishi

Tsuyoshi Nagaishi 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).

  • Active substance of postitive electrode for battery, process for producing the same and battery therefrom
    Publication number: 20060019165
    Abstract: A positive electrode active material for a battery, consisting essentially of manganese dioxide, contains 5 to 400 ppm of magnesium or 0.001 to 3.0% by weight of titanium, thereby achieving even higher performance of a battery, such as enhanced pulse characteristics.
    Type: Application
    Filed: May 22, 2003
    Publication date: January 26, 2006
    Inventors: Munetoshi Yamaguchi, Naoki Kumada, Tsuyoshi Nagaishi, Yasuhiro Ochi, Takeshi Asanuma, Koichi Numata, Shigeo Hirayama
  • Battery cathode active material, method for producing electrolytic manganese dioxide, and battery
    Publication number: 20040009400
    Abstract: The present invention provides a battery cathode active material formed of electrolytic manganese dioxide which has a large specific area and a high electric potential and can enhance battery characteristics such as high-rate characteristics and high-rate pulse characteristics when used as a battery cathode active material. The invention also provides a method for producing electrolytic manganese dioxide and a battery employing the cathode active material. The battery cathode active material is formed of electrolytic manganese dioxide containing a sulfate group in an amount of 1.3 to 1.6 wt. %.
    Type: Application
    Filed: May 13, 2003
    Publication date: January 15, 2004
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Munetoshi Yamaguchi, Yasuhiro Ochi, Tsuyoshi Nagaishi, Naoki Kumada, Takeshi Asanuma, Shigeo Hirayama