ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,492, issued on Oct. 7, was assigned to Kubota Corp. (Osaka, Japan).

"Hydraulic system of working machine and working machine" was invented by Hiroshi Horii (Osaka, Japan) and Hiroya Mori (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic system of a working machine includes: a hydraulic actuator; a direction switching valve; the solenoid proportional valve; a controller to control a current to be supplied to the solenoid proportional valve; an operation member for a worker to operate the hydraulic actuator; and a permission operation actuator capable of performing a switching operation between a permission operation for permitti...