ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,390, issued on Feb. 10, was assigned to AISIN Corp. (Kariya, Japan) and BLUE NEXUS Corp. (Anjo, Japan).

"Vehicle drive device" was invented by Kento Takeuchi (Kariya, Japan), Takahiro Morimoto (Kariya, Japan) and Yomei Hakumura (Anjo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle drive device includes a drive shaft to be driven by a drive source, a rotation transmission unit that transmits rotation input from the drive shaft to a wheel, a mechanical oil pump that generates a hydraulic pressure by the rotation of the drive shaft, an electric oil pump that electrically generates a hydraulic pressure, a hydraulic control device that su...