ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,849, issued on Nov. 3, was assigned to NSK STEERING & CONTROL INC. (Tokyo).

"Worm gear reducer" was invented by Ikuya Tajima (Gunma, Japan) and Takahiro Izumi (Gunma, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A worm gear reducer including an elastic urging portion (6) and an elastic clamping portion (7). The elastic urging portion (6) urges a radially inner side member (5) toward a worm wheel (3) side. The elastic clamping portion (7) has a pair of clamping plate springs (41) that are disposed on both sides of the radially inner side member (5) in a third direction, in a portion between an outer circumferential surface of the radially inne...