US Patent Issued to DAIKIN INDUSTRIES on March 25 for "Rotor with permanent magnets having different coercive forces" (Japanese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,485, issued on March 25, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).

"Rotor with permanent magnets having different coercive forces" was invented by Yoshitaka Okuyama (Osaka, Japan), Masaki Hirano (Osaka, Japan), Shoujirou Naka (Osaka, Japan), Shunsuke Shimizu (Osaka, Japan), Yoshiki Yasuda (Osaka, Japan) and Akio Yamagiwa (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor includes an iron core; a plurality of permanent magnets housed in magnet slots different from each other formed in the iron core, and arranged in series magnetically; and a flux barrier provided to be close to an end in a direction orthogonal to a dir...