Patents by Inventor Yasushi Kitazawa

Yasushi Kitazawa 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).

  • Alkaline storage battery and process for producing the same
    Patent number: 6984251
    Abstract: An alkaline storage battery comprising an electrode assembly housed in a vessel, said electrode assembly comprising a positive electrode plate obtained by filling an active material comprising nickel hydroxide as the principal component into a metallic porous body substrate having three-dimensionally continuous space, followed by pressing, and a negative electrode plate which are opposed to each other with a separator placed therebetween, wherein said positive electrode plate used has been prepared by filling the active material into a plurality of the substrates and then placing at least two of the resulting positive electrode plates one upon another and pressing them to give a single positive electrode plate.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: January 10, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Kitazawa, Kenichi Aoki, Hideo Kasahara, Gota Asano
  • Alkaline storage battery and process for producing the same
    Publication number: 20030068554
    Abstract: An alkaline storage battery comprising an electrode assembly housed in a vessel, said electrode assembly comprising a positive electrode plate obtained by filling an active material comprising nickel hydroxide as the principal component into a metallic porous body substrate having three-dimensionally continuous space, followed by pressing, and a negative electrode plate which are opposed to each other with a separator placed therebetween, wherein said positive electrode plate used has been prepared by filling the active material into a plurality of the substrates and then placing at least two of the resulting positive electrode plates one upon another and pressing them to give a single positive electrode plate.
    Type: Application
    Filed: September 3, 2002
    Publication date: April 10, 2003
    Inventors: Yasushi Kitazawa, Kenichi Aoki, Hideo Kasahara, Gota Asano