US Patent Issued to HENGDIAN GROUP DMEGC MAGNETICS on June 30 for "Method for improving Bs of MnZn power ferrite material by moving valley point" (Chinese Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,546, issued on June 30, was assigned to HENGDIAN GROUP DMEGC MAGNETICS Co. LTD. (Dongyang, China).

"Method for improving Bs of MnZn power ferrite material by moving valley point" was invented by Donghua Lyu (Dongyang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for improving the Bs of an MnZn power ferrite material by moving the valley point includes the following steps: 1) mixing Fe2O3, MnO and ZnO, and performing primary sanding; 2) adding glue, performing spraying and granulating, and then performing pre-sintering to obtain a pre-sintered material; 3) adding additives to the pre-sintered material, and performing secondary sandin...