Patent ID: 7481946
Filing Date: 2009-01-27
Classification: C04B,H01F

Abstract:
1. A production method of a ferrite material comprising as main constituents Fe 2 O 3 :62 to 68 mol %, ZnO:12 to 20 mol %, and MnO, characterized by comprising: a compacting step for obtaining a compacted body by using a powder comprising said main constituents, wherein said powder has a specific surface area falling within a range between 2.5 and 5.0 m a sintering step for sintering said compacted body obtained in said compacting step; wherein a 50% particle size of said powder falls within a range between 0.8 and 1.8 μm and a 10% particle size of said powder falls within a range between 0.55 and 0.73 μm.