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US 11,456,096 B2Granted
Ferrite sintered magnet
AssigneeTDK Corporation
InventorsHiroyuki Morita, Masanori Ikeda, Yoshitaka Murakawa, Taku Murase
Life of this patent
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Abstract
There is provided a ferrite sintered magnet having a high residual magnetic flux density. A ferrite sintered magnet 2 includes a plurality of main phase particles 5 including ferrite having a hexagonal structure, the number of core-shell structured particles 5A having a core 7 and a shell 9 covering the core 7, among the main phase particles 5, is smaller than the number of the main phase particles 5 other than the core-shell structured particles 5A.
Claims9
A ferrite sintered magnet comprising a plurality of main phase particles including ferrite having a hexagonal structure,
- wherein some of the main phase particles are core-shell structured particles having a core and a shell covering the core,
- a number of the core-shell structured particles is smaller than a number of the main phase particles other than the core-shell structured particles.
Dependencies are inferred from the claim text.