ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,811, issued on Oct. 28, was assigned to Kubota Corp. (Osaka, Japan).

"Working machine" was invented by Sumio Yagyu (Sakai, Japan) and Tsunehiro Ii (Sakai, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A working machine includes a working device, a hydraulic system including an actuator, and a hydraulic pump to supply a hydraulic fluid to the actuator, an electric device, a power generator to generate electric power to be directly or indirectly supplied to the electric device, a first cooling system to cool the electric device with a first cooling medium, and a second cooling system to cool the power generator with a second cooling medium. The...