ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,575, issued on Feb. 3, was assigned to Koki Holdings Co. Ltd. (Tokyo).

"Work machine" was invented by Ken Miyazawa (Ibaraki, Japan) and Ryo Suzuki (Ibaraki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention addresses the issue of improving an assembly property. In a grinder, a paddle lever is rotatably connected to a rear housing. In addition, a rotating shaft that is rotatably supported by the rear housing is formed with the paddle lever, and a stopper part for regulating the rotation range of the paddle lever is formed with the rear housing. Furthermore, the rear housing and the paddle lever are each constituted by a single...