ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,772, issued on May 27, was assigned to Kubota Corp. (Osaka, Japan).
"Hydraulic system for working machine" was invented by Yuji Fukuda (Sakai, Japan) and Toshihiko Takemura (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic system for a working vehicle includes a first hydraulic pump to deliver pilot fluid to a control valve for a hydraulic actuator whose highest load pressure acts on a first fluid passage, and a second hydraulic pump to deliver hydraulic fluid whose pressure acts on a second fluid passage. A hydraulic controller is operable to control a load-sensing (LS) differential pressure between the highest load pressure ...