ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,081, issued on Oct. 14, was assigned to KOKI HOLDINGS Co. LTD. (Tokyo).
"Working tool and drilling method" was invented by Ryosuke Nakano (Ibaraki, Japan), Tomoaki Sudo (Ibaraki, Japan), Ken Inui (Ibaraki, Japan) and Chisho So (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A working tool and a drilling method capable of improving workability are provided. A working tool includes a motor, a trigger switch to instruct the driving of the motor, and a microcontroller to control the driving of the motor. The microcontroller stops the motor without transitioning to a retry mode when detecting a rapid increase of a motor current. The microc...