ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,151, issued on June 10, was assigned to GIKEN LTD. (Kochi, Japan).
"Method and device for producing concrete pile" was invented by Akio Kitamura (Kochi, Japan), Hiroaki Tanouchi (Kochi, Japan), Shinya Nakazawa (Kochi, Japan) and Masaaki Ono (Kochi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A manufacturing method of a concrete pile is shown. The method includes the following, that is, pouring concrete in the pile molding space, reducing the pile molding space to compress and mold the concrete, draining water drained from the concrete by compression and molding outside of the formwork from the drainage hole, and holding the concrete a prede...