ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,947, issued on June 17, was assigned to DAICEL Corp. (Osaka, Japan).
"Method for producing surface-modified nanodiamond" was invented by Hidekazu Takeuchi (Tokyo), Naoyoshi Matsuno (Tokyo) and Hideo Yagasaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for producing a surface-modified nanodiamond having its surface modified with a group containing a polyglycerin chain in an industrially efficient and safe manner, the surface-modified nanodiamond having excellent solubility or dispersibility in water and a polar organic solvent and great dispersion stability. In an aliphatic alcohol solvent having from 2 to 4 carbon atom...