Patent ID: 7378036

Claim:
A NiCuZn-based ferrite material containing, as main components, 43.0 to 49.8 mol % of iron oxide in terms of Fe 2 O 3 , 5.0 to 14.0 mol % of copper oxide in terms of CuO, 3.0 to 32.0 mol % of zinc oxide in terms of ZnO, and remaining mol % of nickel oxide in terms of NiO, wherein 0.05 to 1.0 wt % of bismuth oxide in terms of Bi 2 O 3 , 0.5 to 3.0 wt % of tin oxide in terms of SnO 2 , and 30 to 5000 wt ppm of chromium oxide in terms of Cr 2 O 3 are added to said main components.