ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,023, issued on July 1, was assigned to KOBELCO CONSTRUCTION MACHINERY Co. LTD. (Hiroshima, Japan).

"Work machine" was invented by Toshiro Ueta (Hiroshima, Japan), Michio Hirayama (Hiroshima, Japan) and Tsutomu Fujisaki (Hiroshima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A property calculation section of the controller calculates a horizontal distance between a boom proximal end portion and an arm distal end portion based on a detection signal input from an attitude detector, calculates a weight of the distal end attachment based on the horizontal distance and a detection signal input from a holding pressure detector in a state where a di...