Patent 7930950 was granted and assigned to Showa Corporation on April, 2011 by the United States Patent and Trademark Office.
In a motor-driven steering assist apparatus, a gear train transmitting a rotation of an electric motor to an output shaft comprises a single unit body surrounded by housings, and an attaching boss to a vehicle body side bracket is provided in a lower surface of the housing as seen from an axial direction of the output shaft.