ALEXANDRIA, Va., March 24 -- United States Patent no. 12,586,821, issued on March 24, was assigned to GS Yuasa International Ltd. (Kyoto, Japan).
"Lead-acid battery" was invented by Yuri Kitada (Kyoto, Japan) and Kazuki Sekiya (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve regulated lead-acid battery includes at least one cell including an element and an electrolyte solution. The element includes a negative electrode plate, a positive electrode plate, and a separator interposed between the negative electrode plate and the positive electrode plate. The negative electrode plate includes a negative electrode material. The negative electrode material contains a polymer compound having a pea...