ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,784,947, issued on Nov. 3, was assigned to FUJIAN GOLDEN DRAGON RARE-EARTH Co. Ltd. (Fujian, China).

"R-T-B-based sintered magnet and preparation method therefor" was invented by Yao Shi (Fujian, China), Qin Lan (Fujian, China) and Jiaying Huang (Fujian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An R-T-B-based sintered magnet and a preparation method therefor. The R-T-B-based sintered magnet comprises: R, B, Ti, Ga, Al, Cu, and T. The contents thereof are as follows: R is 29.0-33%; the content of B is 0.86-0.93%; the content of Ti is 0.05-0.25%; the content of Ga is 0.3-0.5%, but not 0.5%; the content of Al is 0.6-1%, but not 0.6%; the content...