ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,895, issued on Feb. 10, was assigned to Koki Holdings Co. Ltd. (Tokyo).
"Driver, pressure regulator and driving unit" was invented by Goya Fujimoto (Ibaraki, Japan), Shinichirou Satou (Ibaraki, Japan) and Takashi Ueda (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a driver configured to be capable of filling gas suitable for a set pressure of a pressure chamber. This driver is provided with: a pressure chamber into which gas is filled; a striker moved in a first direction by pressure within the pressure chamber to strike nails; and an electric motor and a pin wheel, which move the striker in a second direction opposite to...