ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,277, issued on Jan. 20, was assigned to GS Yuasa International Ltd. (Kyoto, Japan).
"Lead-acid battery" was invented by Koichiro Nakao (Kyoto, Japan), Toshio Kitami (Kyoto, Japan) and Masahiro Yamasaki (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lead-acid battery includes: a housing that includes a container including one open end and a lid closing the opening of the container; and an element that includes a plurality of positive electrode plates and a plurality of negative electrode plates alternately arranged in the container with a separator interposed therebetween. Each positive electrode plate includes a first foot protruding...