US Patent Issued to FUJIAN GOLDEN DRAGON RARE-EARTH on Sept. 23 for "R-T-B series permanent magnet material, raw material composition preparation method and application" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,359, issued on Sept. 23, was assigned to FUJIAN GOLDEN DRAGON RARE-EARTH Co. Ltd. (Fujian, China).

"R-T-B series permanent magnet material, raw material composition preparation method and application" was invented by Qin Lan (Fujian, China), Dawei Shi (Fujian, China) and Jiaying Huang (Fujian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An R-T-B series permanent magnet material, a raw material composition, a preparation method, and an application. The R-T-B series permanent magnet material comprises the following components: R: 29-31.0 wt. %, RH is greater than 1 wt. %, B: 0.905-0.945 wt. %, C: 0.04-0.15 wt. %, N: 0.1-0.4 wt. %, and Fe: 67...