Patents by Inventor Mitsuru Kurokawa

Mitsuru Kurokawa 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).

  • Lead battery and lead battery storage method
    Patent number: 7879490
    Abstract: This invention provides a lead battery that becomes usable by injecting an electrolyte thereinto. The battery includes: positive and negative electrode plates each having a grid comprising a Pb—Ca based alloy; separators that separate the positive electrode plates from the negative electrode plates; the electrolyte comprising sulfuric acid; and a battery container accommodating the positive and negative electrode plates, the separators, and the electrolyte. The battery container is sealed, and part of the positive and negative electrode plates is immersed in the electrolyte. The height Y0 of the positive and negative electrode plates and the distance Y1 from the bottom of the positive and negative electrode plates to the level of the electrolyte satisfy the relation: 15?Y1/Y0×100?60.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: February 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Yasuda, Tsunenori Yoshimura, Mitsuru Kurokawa, Sadao Furuya
  • Lead battery and lead battery storage method
    Publication number: 20070184349
    Abstract: This invention provides a lead battery that becomes usable by injecting an electrolyte thereinto. The battery includes: positive and negative electrode plates each having a grid comprising a Pb—Ca based alloy; separators that separate the positive electrode plates from the negative electrode plates; the electrolyte comprising sulfuric acid; and a battery container accommodating the positive and negative electrode plates, the separators, and the electrolyte. The battery container is sealed, and part of the positive and negative electrode plates is immersed in the electrolyte. The height Y0 of the positive and negative electrode plates and the distance Y1 from the bottom of the positive and negative electrode plates to the level of the electrolyte satisfy the relation: 15?Y1/Y0×100?60.
    Type: Application
    Filed: March 17, 2005
    Publication date: August 9, 2007
    Inventors: Hiroshi Yasuda, Tsunenori Yoshimura, Mitsuru Kurokawa, Sadao Furuya