ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,027, issued on Feb. 4, was assigned to NEC Corp. (Tokyo).
"Nanocarbon separation method and nanocarbon separation apparatus" was invented by Fumiyuki Nihey (Tokyo) and Hideaki Numata (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A nanocarbon separation method includes: preparing a nanocarbon dispersion liquid in which nanocarbons and a non-ionic surfactant are dispersed in a solvent; injecting the nanocarbon dispersion liquid into a separation tank; applying a direct current voltage to a first electrode provided at an upper part of the interior of the separation tank and a second electrode provided at a lower part of the interior of the separ...