ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,898, issued on Sept. 23, was assigned to NIDEC Corp. (Kyoto, Japan).
"Rotating electrical machine and drive device" was invented by Satoshi Kajikawa (Kyoto, Japan), Hibiki Takada (Kyoto, Japan) and Takahiro Sonoda (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A housing of a rotating electrical machine has a flow path extending in a rectangular wave shape along a circumferential direction, and including axial paths, and first and second circumferential paths joining first ends and second ends of the axial paths, respectively. The axial path includes joined first and second paths. A cross-section in each of the first and second paths d...