ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,098, issued on June 3, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Work machine" was invented by Seiji Hijikata (Tsukuba, Japan), Yasutaka Tsuruga (Ryugasaki, Japan), Masatoshi Hoshino (Tsuchiura, Japan), Shou Furukawa (Tsuchiura, Japan) and Ryou Yagisawa (Tsuchiura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a work machine including a flow control valve serving as a flow control mechanism that controls a flow rate of pressurized fluid from a hydraulic pump to a hydraulic actuator via a first control valve. A controller of the work machine, when the pressurized fluid is supplied to the hydraulic actuator fr...