US Patent Issued to Kubota on Nov. 18 for "Electric working machine and method of activating electric working machine" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,845, issued on Nov. 18, was assigned to Kubota Corp. (Osaka, Japan).

"Electric working machine and method of activating electric working machine" was invented by Daiki Tamba (Sakai, Japan), Tsunehiro Il (Sakai, Japan) and Shunya Takase (Sakai, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric working machine includes an electric device, electric circuitry, battery packs to be connected sequentially to the electric device via the electric circuitry to parallelly connected, the battery packs including internal relay(s) to open/close an internal circuit, and a controller. The electric circuitry includes external relays corresponding to r...