ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,255, issued on June 17, was assigned to Ford Global Technologies LLC (Dearborn, Mich.).
"Net shape processing of permanent magnet by field assisted sintering" was invented by Wanfeng Li (Novi, Mich.) and Michael W. Degner (Novi, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Magnets having various portions of different densities and resistivities are disclosed. In a refinement, the various portions may have the same composition but different physical structures. Unique dies may be used to during processing, such as during sintering to manufacture the magnets. The die may include conductive and non-conductive surfaces that contact the green mag...