ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,150, issued on April 8, was assigned to Koki Holdings Co. Ltd. (Tokyo).

"Driving device" was invented by Toshinori Yasutomi (Ibaraki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A driving device capable of reducing the load in any of the plurality of engaging members is provided. The driving device includes an ejection unit to which a fastener is supplied, a striking unit configured to strike the fastener, a rack provided on the striking unit, a wheel provided rotatably, and a plurality of pins provided on the wheel and engaged with and released from the rack, wherein the plurality of pins can change positions in the wheel, and the pluralit...