ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,796, issued on Oct. 14, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).
"Battery and manufacturing method of battery" was invented by Ichirou Murata (Setsu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A battery is provided in which a reliability of the caulked part vicinity of the terminal is suitably enhanced. One suitable embodiment of the battery herein disclosed includes a negative electrode electrical collector part includes a penetration hole into which the negative electrode terminal is inserted, and the penetration hole includes a taper part including an inclination for making an inner diameter become gradually larger ...