ALEXANDRIA, Va., March 5 -- United States Patent no. 12,244,028, issued on March 4, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).
"Power storage device" was invented by Taijyu Morishita (Kasai, Japan) and Wataru Okada (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power storage device includes: a power storage module including a plurality of stacked power storage cells; and a case having an inner space to accommodate the power storage module. The case includes a main body provided with an opening on an electrode terminal side of the plurality of power storage cells, a cover provided over the opening, and a tapered portion that narrows a width of the inner space in a direction f...