US Patent Issued to Headway Technologies on Oct. 28 for "Noble metal coated plasmonic waveguide blocker for heat assisted magnetic recording head" (American, Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,485, issued on Oct. 28, was assigned to Headway Technologies Inc. (Milpitas, Calif.).

"Noble metal coated plasmonic waveguide blocker for heat assisted magnetic recording head" was invented by Hong Guo (Fremont, Calif.), Dayu Zhou (Fremont, Calif.), Weihao Xu (San Jose, Calif.), Koji Shimazawa (Cupertino, Calif.), Tsutomu Chou (Chiba, Japan) and Yukinori Ikegawa (Cupertino, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present embodiments relate to a noble metal coating on a parabolic waveguide blocker surface to future improve thermal gradient for HAMR head which can provide an improved thermal spot confinement over other designs. More ...