Title:
MnZn-BASED FERRITE AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/070634
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an MnZn-based ferrite that can reduce magnetic loss at a high frequency and suppress a change in magnetic properties under a high magnetic field, and a method of manufacturing the same. An MnZn-based ferrite containing Fe2O3, ZnO and MnO as main components, wherein, per 100 mol% of the main components, the content of Fe2O3 is 53.2-56.0 mol% and the content of ZnO is 3.0-12.0 mol%, with the balance being MnO. This MnZn-based ferrite further contains, per 100 mass% of the main components, 0.005-0.060 mass% of SiO2, 0.010-0.060 mass% of CaO, 0.10-0.40 mass% of Co2O3 and 0.05-0.30 mass% of TiO2 as auxiliary component, and has an average crystal size of 4 μm or less and a sintered density of 4.8 g/cm3 or more.
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Inventors:
MISUMI SHOTA (JP)
Application Number:
PCT/JP2021/029890
Publication Date:
April 07, 2022
Filing Date:
August 16, 2021
Export Citation:
Assignee:
TOKIN CORP (JP)
International Classes:
C01G49/00; C04B35/38; H01F1/34
Foreign References:
| JP2020120064A | 2020-08-06 | |||
| JP2005119892A | 2005-05-12 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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