ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,218,559, issued on Feb. 4, was assigned to NIDEC Corp. (Kyoto, Japan).
"Drive apparatus" was invented by Daiki Shimogai (Kyoto, Japan), Takashi Shiraishi (Kyoto, Japan) and Takaya Tamaki (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive apparatus includes: a motor having a shaft; a bearing rotatably supporting the shaft; a housing for the motor and holding the bearing in a bearing holding portion; an insulating member between the bearing and the bearing holding portion; and an oil passage. The bearing holding portion includes a holding tubular portion holding the bearing from radially outside, and a holding bottom portion extending rad...