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US 12,371,764 B2Granted
Sm—Fe—N rare earth magnet, production method therefor, and rare earth magnet powder
AssigneeTDK Corporation
InventorHirotaka Yokota
Life of this patent
Estimating the term…
Abstract
Provided is an Sm—Fe—N rare earth magnet comprising Sm—Fe—N crystal grains. An oxygen content in the Sm—Fe—N rare earth magnet is 0.5% by mass or less on the basis of a total amount of the Sm—Fe—N rare earth magnet, and an average grain size of the Sm—Fe—N crystal grains is 1 μm or less.
Claims4
An Sm—Fe—N rare earth magnet comprising Sm—Fe—N crystal grains,
- wherein an oxygen content in the Sm—Fe—N rare earth magnet is 0.5% by mass or less on the basis of a total amount of the Sm—Fe—N rare earth magnet,
- an average grain size of the Sm—Fe—N crystal grains is 1 μm or less, and
- the Sm—Fe—N rare earth magnet is a Sm—Fe—N rare earth sintered magnet.
Dependencies are inferred from the claim text.