Patent ID: 6139766
Filing Date: 2000-10-31
Classification: C04B,G11B,H01F,H02K

Abstract:
An oxide magnetic material comprising a primary phase of ferrite with a hexagonal structure and having a composition containing A, R, Fe, and M whereinA is at least one element selected from the group consisting of strontium, barium, calcium and lead, with strontium being essentially contained in A,R is at least one element selected from the group consisting of bismuth and rare earth elements inclusive of yttrium, with lanthanum being essentially contained in R, andM is cobalt or cobalt and zinc,the proportions in total of the respective elements relative to the quantity of the entire metal elements areA: 1 to 13 at %,R: 0.05 to 10 at %,Fe: 80 to 95 at %, andM: 0.5 to 3 at %.