ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,329, issued on July 29, was assigned to Japan Science and Technology Agency (Kawaguchi, Japan).

"Heteroelement-containing graphene" was invented by Nagahiro Saito (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a highly crystalline heteroelement-containing graphene including carbon (C) and, as a heteroelement (X), at least one element selected from the group consisting of nitrogen (N), phosphorus (P), arsenic (As), sulfur (S), boron (B), and silicon (Si). Also, spots belonging to either the orthorhombic system or the hexagonal system and having the symmetry of a single crystal are observed in the selected area electron diff...