US Patent Issued to Seagate Technology on April 21 for "NFT back reflection monitor for heat-assisted magnetic recording head" (Minnesota Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,137, issued on April 21, was assigned to Seagate Technology LLC (Fremont, Calif.).

"NFT back reflection monitor for heat-assisted magnetic recording head" was invented by Vivek Krishnamurthy (Eden Prairie, Minn.), Nathaniel Curran Brandt (Saint Paul, Minn.), Yong Luo (Medina, Minn.) and Michael Allen Seigler (Eden Prairie, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are methods and configurations for monitoring reflections in heat-assisted magnetic recording (HAMR) heads that may lead to laser instability and power variation. HAMR heads direct light emitted by a laser toward a near field transducer (NFT) for the production of pla...