ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,580, issued on Sept. 15, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Parallel dipole line photo-hall system with temperature gradient stage" was invented by Oki Gunawan (Westwood, N.J.), Josephine Monica (Ithaca, N.Y.) and Teodor Krassimirov Todorov (Yorktown Heights, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A testing system includes a magnetic field generator, an electric field generator and a light source. A temperature control assembly includes a sample stage which supports a device under test during exposure to a magnetic field generated by the magnetic field generator, an electric field generated by the el...