US Patent Issued to PRIME PLANET ENERGY & SOLUTIONS on Sept. 8 for "Battery case and secondary battery including the same" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,828, issued on Sept. 8, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).

"Battery case and secondary battery including the same" was invented by Takuya Yamawaki (Takasago, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a technique to prevent formation of a gap between a case body and a sealing plate. The battery case disclosed herein includes: a case body having an opening; and a substantially rectangular sealing plate attached to the opening. The sealing plate has a pair of long side portions, a pair of short side portions, and R portions at four corners. An edge of a lower surface of the sealing plate is chamfered. A...