ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,639, issued on Sept. 30, was assigned to MAKITA Corp. (Anjo, Japan).

"Power tool" was invented by Shinji Onoda (Anjo, Japan) and Takahiro Nishikawa (Anjo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool efficiently cools a motor and a brush, with a distance for insulation left between an inlet and an urging member. A power tool includes a motor, an output unit, a fan, a housing accommodating the motor and the output unit, having an inlet to suck in air from outside in response to rotation of the fan and an outlet to discharge the air sucked in, and accommodating the motor along a flow of the air between the inlet and the outlet, a...