Patents by Inventor Toshifumi Yoshimine

Toshifumi Yoshimine 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).

  • Control valve type lead battery
    Patent number: 7514179
    Abstract: A valve-regulated lead-acid battery of this invention includes: an electrode plate group; and an electrolyte impregnated into and retained by the electrode plate group. The electrode plate group includes: positive electrode plates that each include a positive electrode current collector comprising a Sn-containing lead alloy, and a positive electrode active material retained by the positive electrode current collector; negative electrode plates that each include a negative electrode current collector comprising a lead alloy, and a negative electrode active material retained by the negative electrode current collector; and separators. The Sn content in the positive electrode current collector is 1.1 to 3.0% by mass, and the pore volume per unit mass of the negative electrode active material is 0.115 to 0.150 cm3/g.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: April 7, 2009
    Assignee: Panasonic Corporation
    Inventors: Toshifumi Yoshimine, Takehiro Sasaki, Tomotaka Fujimori
  • Control valve type lead battery
    Publication number: 20060154148
    Abstract: A valve-regulated lead-acid battery of this invention includes: an electrode plate group; and an electrolyte impregnated into and retained by the electrode plate group. The electrode plate group includes: positive electrode plates that each include a positive electrode current collector comprising a Sn-containing lead alloy, and a positive electrode active material retained by the positive electrode current collector; negative electrode plates that each include a negative electrode current collector comprising a lead alloy, and a negative electrode active material retained by the negative electrode current collector; and separators. The Sn content in the positive electrode current collector is 1.1 to 3.0% by mass, and the pore volume per unit mass of the negative electrode active material is 0.115 to 0.150 cm3/g.
    Type: Application
    Filed: June 12, 2003
    Publication date: July 13, 2006
    Inventors: Toshifumi Yoshimine, Takehiro Sasaki, Tomotaka Fujimori