Patents by Inventor Masaki Miiyamoto

Masaki Miiyamoto 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).

  • Nickel electrode for alkaline secondary battery and alkaline secondary battery
    Patent number: 8057934
    Abstract: A nickel electrode for an alkaline secondary battery includes an electrically conductive base plate, and an active material particle supported on the conductive base plate and including a complex particle with a surface layer that mainly formed of a high-order cobalt compound whose oxidation number of cobalt is higher than +2 on a surface of a core layer particle that forms a high-order nickel hydroxide whose oxidation number of nickel is higher than +2. Lithium (Li) is contained to be a solid solution in the active material particle from 0.01 to 0.5 wt % of a converted amount as a lithium metal by weight of lithium metal divided by a total weight of the high-order nickel hydroxide, the high-order cobalt compound and the lithium metal.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: November 15, 2011
    Assignee: GS Yuasa International Ltd.
    Inventors: Masaki Miiyamoto, Mitsuhiro Kodama, Seijiro Ochiai, Manabu Kanemoto, Kaori Nishiyabu, Minoru Kuzuhara, Masaharu Watada