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Ceramics with magnetic property are called
ferrites. Ferrites are classified into two categories, namely
hard ferrites with a permanent magnetism and soft ferrites with
easier control of magnetism. Since soft ferrites can convert
between electric and magnetic energies bi-directionally, we
can utilize them to control the magnetic environment of electronic
devices electrically. Murata applied this property of soft ferrite
to noise suppression components to develop various EMI (electromagnetic
interference) filters (EMIFIL )
and microwave absorbers. Murata also applied the nonreversible
property of ferrite to develop products such as mobile phone
isolators. |
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