ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,557, issued on Aug. 12, was assigned to GKN Automotive Ltd. (Birmingham, Great Britain).

"Differential apparatus" was invented by Isao Hirota (Tochigi, Japan), Noboru Uchida (Tochigi, Japan), Yousuke Kawai (Tochigi, Japan), Daisuke Umetsu (Hiroshima, Japan), Koji Takahashi (Hiroshima, Japan), Koki Yamamoto (Hiroshima, Japan) and Naoki Hiraga (Hiroshima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An output gear of the differential apparatus includes a gear member and an operating member capable of being integrally rotatably engaged with the gear member via the cam portion. The cam portion includes a gear protrusion on the gear member, an op...