ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,285, issued on May 13, was assigned to Western Digital Technologies Inc. (San Jose, Calif.).

"Measuring NFT protrusion in a heat assisted magnetic recording drive using burst writing and a constant laser diode temperature" was invented by Mehdi Habibollahzadeh (San Jose, Calif.) and Sukumar Rajauria (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various illustrative aspects are directed to a data storage device comprising one or more disks; one or more heads, including a first head having a first laser diode and a near field transducer; and one or more processing devices configured to: preheat the first LD to a steady state tempera...