US Patent Issued to KOMATSU on Sept. 2 for "Boom control system of work machine" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,880, issued on Sept. 2, was assigned to KOMATSU LTD. (Tokyo).

"Boom control system of work machine" was invented by Yosuke Yamagoe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A boom cylinder drives a boom, and includes a head side oil chamber and a bottom side oil chamber. A first valve includes a first opening for discharging oil in the head side oil chamber to an oil tank, and supplies oil from a hydraulic pump to the head side oil chamber. A second valve includes a second opening for discharging oil in the bottom side oil chamber to the oil tank, and supplies oil from the hydraulic pump to the bottom side oil chamber. A controller indiv...