US Patent Issued to Hitachi Construction Machinery on Sept. 8 for "Work machine" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,513, issued on Sept. 8, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).

"Work machine" was invented by Kota Abe (Tsuchiura, Japan), Teruki Igarashi (Tsuchiura, Japan) and Akihiro Narazaki (Tsuchiura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention aims to provide a work machine capable of performing tasks with high precision by preventing the deterioration of speed responsiveness of the hydraulic cylinder driving the working device, as well as preventing the hydraulic cylinder from surging or deviating. To achieve this, the controller calculates the correction value for the target operating pressure of the...