ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,894, issued on July 28, was assigned to Headway Technologies Inc. (Milpitas, Calif.).

"Pre-assisting microwave magnetic recording based on spin-hall nano-oscillators" was invented by Haowen Ren (Fremont, Calif.), Shehrin Sayed (Fremont, Calif.), Wenyu Chen (San Jose, Calif.) and Yuhui Tang (Milpitas, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present embodiments relate to a pre-assisted microwave assisted magnetic recording (PA-MAMR) write head that utilizes spin-Hall nano-oscillators (SHNOs). The SHNO can include a free layer and a spin-hall layer comprising a spin-hall material(s). The SHNO(s) can be disposed in a leading shield (LS...