ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,406,690, issued on Sept. 2, was assigned to SAE MAGNETICS (H.K.) LTD. (Hong Kong).

"Light source unit, thermally assisted magnetic head, head gimbal assembly, and hard disk drive" was invented by Seiichi Takayama (Hong Kong), Ryuji Fujii (Hong Kong), Tai Boon Lee (Hong Kong) and Ka Yip Wong (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure disclose a light source unit applied to the thermally assisted magnetic head. A welding layer and a stopping structure are disposed between the slider of the thermally assisted magnetic head and the light source unit. When the light source unit is joined with the slider, the light source unit mo...