ALEXANDRIA, Va., June 25 -- United States Patent no. 12,341,146, issued on June 24, was assigned to SANGSINEDP Co. LTD. (Cheonan-si, South Korea).

"Apparatus and method for manufacturing rechargeable battery case" was invented by Su Young Seo (Cheonan-si, South Korea), Byeong Cheol Min (Cheonan-si, South Korea) and Jung Hun Min (Cheonan-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an apparatus for manufacturing a rechargeable battery case, the apparatus comprising: a punch which presses an object; a die which comprises an extrusion part for extruding the pressed object, wherein, when the punch presses the object such that the object enters the extrusion part...