ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,243, issued on March 25, was assigned to KOBELCO CONSTRUCTION MACHINERY Co. LTD. (Hiroshima, Japan).
"Assembly method for crane" was invented by Akira Koyahata (Hyogo, Japan) and Dairo Matsui (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an assembly method for a crane, by which method a crane including a strut can be assembled easily. The assembly method for the crane includes a strut coupling step of coupling a base end of a strut, a cylinder connecting step of extending a cylinder unit having one end supported by the strut, the cylinder unit being capable of extending/contracting, to connect the other end of the cylinde...