ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,295, issued on March 24, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Work machine" was invented by Ryousuke Itou (Tsuchiura, Japan), Hiroaki Amano (Tsukuba, Japan), Kento Kumagai (Ami-machi, Japan), Shinji Nishikawa (Kasumigaura, Japan) and Akihiro Narazaki (Tsukuba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention aims to provide a working machine capable of improving the responsiveness of the driving speed to the target speed of the hydraulic actuator. For this purpose, the controller calculates the target speed of the boom according to the input amount of the operation lever, calculates the actuato...