ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,437,917, issued on Oct. 7, was assigned to SHIN-ETSU CHEMICAL Co. LTD. (Tokyo).
"Method for manufacturing rare earth sintered magnet" was invented by Akira Yamada (Echizen, Japan), Tetsuya Ohashi (Echizen, Japan) and Koichi Hirota (Echizen, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rare earth sintered magnet is manufactured by preparing a R1-T-X sintered body having a major phase of R12T14X composition wherein R1 is a rare earth element(s) and essentially contains Pr and/or Nd, T is Fe, Co, Al, Ga, and/or Cu, and essentially contains Fe, and X is boron and/or carbon, forming an alloy powder containing 5less than equal toR2less than equal to6...