R-T-B based permanent magnet and raw alloy for the same

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United States of America Patent

PATENT NO 9970087
SERIAL NO

14686200

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Abstract

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In the present invention, a permanent magnet with excellent temperature properties and magnetic properties which will not significantly deteriorate can be stably prepared, by using a raw alloy for the R-T-B based permanent magnet in which the rare earth element(s) composed of at least one selected from the group consisting of Y, La and Ce is selected as a predetermined amount of the rare earth element R in the R-T-B based permanent magnet and a proper amount of Ca is contained.

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Patent Owner(s)

Patent OwnerAddress
TDK CORPORATIONTOKYO 103-6128

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Enokido, Yasushi Tokyo, JP 33 269
Hashimoto, Ryuji Tokyo, JP 70 362
Wada, Hironori Tokyo, JP 16 174

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