Patents by Inventor Yoshifumi Magari

Yoshifumi Magari 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).

  • Patent number: 6479189
    Abstract: The sealed alkaline storage battery of this invention includes a nonsintered nickel positive electrode using, as an active material, manganese-containing &agr;-nickel hydroxide including, as a solid-solution element, 15 through 50 wt % of manganese on the basis of a total amount of nickel and manganese; a negative electrode; and an alkaline electrolyte including 0.55 through 0.80 g of water per gram of the manganese-containing &agr;-nickel hydroxide. In this manner, the invention provides an alkaline storage battery exhibiting high positive electrode active material utilization for a large number of charge-discharge cycles.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: November 12, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takeshi Ogasawara, Yoshifumi Magari, Nobuyuki Higashiyama, Mamoru Kimoto, Yasuhiko Itoh