Patent ID: 6391222
Filing Date: 2002-05-21
Classification: C01G,C01P,C04B,H01F

Abstract:
NiMnZn based ferrite comprising:main components comprising iron oxide 53 to 59 mol % in term of Fe2O3, manganese oxide 22 to 41 mol % in trem of MnO, zinc oxide 4 to 12 mol % in term of ZnO, and nickel oxide 2 to 7 mol % in term of NiO; and sub-components comprising silicon oxide 0.005 to 0.03 wt % in term of SiO2, calcium oxide 0.008 to 0.17 wt % in term of CaO and phosphorus P 0.0004 to 0.01 wt %.