ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,758, issued on March 3, was assigned to SUMITOMO CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Shovel" was invented by Takashi Yamamoto (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shovel includes a lower traveling body, an upper swing body swingably mounted on the lower traveling body, a motor mounted on the upper swing body, a hydraulic pump driven by the motor, and processing circuitry configured to control the discharge flow rate of the hydraulic pump in accordance with a flow rate control characteristic that is preset. The flow rate control characteristic is a characteristic indicating a correspondence between the displacement of ...