ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,870, issued on July 29, was assigned to SUBARU Corp. (Tokyo).

"Door impact beam" was invented by Chihiro Yamamoto (Tokyo), Shunki Okajima (Tokyo), Shunsuke Soga (Tokyo) and Yoshimasa Andou (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A door impact beam includes a top plate, a recessed bead, and walls. The top plate faces an outer panel that constitutes a door of the vehicle and extends in the front-rear direction of the vehicle. The recessed bead is disposed on the top plate and has a U shape toward an inner panel that constitutes the door of the vehicle. The walls protrude toward the inner panel from both ends of the top plate in a width d...