US Patent Issued to REFINE HOLDINGS on Nov. 11 for "Method for removing foreign material from carbonaceous material dispersion" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,959, issued on Nov. 11, was assigned to REFINE HOLDINGS Co. LTD. (Gifu, Japan).

"Method for removing foreign material from carbonaceous material dispersion" was invented by Tomokiyo Takeyama (Tokyo), Masaru Nakajo (Tokyo), Kensuke Fukasawa (Tokyo) and Takao Suzuki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for efficiently removing non-magnetic foreign material, from a carbonaceous material dispersion in which carbonaceous material particles are dispersed in a dispersing medium, includes applying the dispersion to a primary filter a specified number of times in circulation, the primary filter including at least one filter device; ...