ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,097, issued on June 3, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Work machine" was invented by Naoya Takagawa (Tsuchiura, Japan), Kento Kumagai (Ami-machi, Japan), Mitsuhiko Kanehama (Kasumigaura, Japan), Hiroaki Amano (Tsukuba, Japan) and Ryousuke Itou (Tsuchiura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A controller of a work machine computes a requested velocity of a hydraulic actuator based on an operation signal, computes a first estimated velocity of the hydraulic actuator based on a sensed value of a first sensing device that senses motion information of a driven member, computes a second estimated velocity ...