ALEXANDRIA, Va., April 2 -- United States Patent no. 12,266,818, issued on April 1, was assigned to SANYO Electric Co. Ltd. (Osaka, Japan).
"Battery pack" was invented by Yuji Ogishima (Hyogo, Japan), Keisuke Minami (Hyogo, Japan) and Kazuki Takeno (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Each prismatic cell is provided with a rolled electrode assembly, and the rolled electrode assembly has a flat section with a flat outer peripheral surface and two curved sections with a curved outer peripheral surface. Each spacer has a substrate and multiple ribs protruding on at least one side of the substrate, and the ribs are formed so as to face the flat section of the rolled electrode assembly and...