ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,912, issued on May 20, was assigned to DOWA ECO-SYSTEM Co. LTD. (Tokyo).
"Separation method for valuable resources" was invented by Tatsuya Yodose (Tokyo), Ryoei Watanabe (Tokyo), Hitoshi Sasaki (Tokyo), Chihiro Nishikawa (Tokyo) and Yoshihiro Honma (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a sorting method for valuable resources, including a thermal treatment step of thermally treating a target containing valuable resources, to melt aluminum and separate a melt, a pulverizing step of pulverizing a thermally treated product remaining after the melt is separated, to obtain a pulverized product, a magnetic sorting step of sorti...