ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,473, issued on Nov. 3, was assigned to Kubota Corp. (Osaka, Japan).
"Working machine" was invented by Junki Ito (Sakai, Japan), Daiki Tamba (Sakai, Japan) and Takuma Sai (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A working machine includes an electric motor, a working device driven by power of the electric motor, an operation device to operate the working device, an operation locker switchable between an enabling position at which an operation of the working device by the operation device is enabled and a disabling position at which the operation is disabled, a cooler including an electric cooling fan, a temperature detector to dete...