ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,598, issued on Aug. 26, was assigned to MAKITA Corp. (Anjo, Japan).
"Earth auger" was invented by Hidenori Nagasaka (Anjo, Japan), Tomohiko Imae (Anjo, Japan) and Yoshihiro Ito (Anjo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hole is formed in a drill target with improved workability. An electric work machine includes a motor, a motor housing accommodating the motor, a handle housing including a grip including a trigger switch operable to activate the motor, a reducer, a gear housing accommodating the reducer, a rotation output unit protruding frontward from the gear housing and rotatable under a rotational force transmitted from the mo...