Permanent magnet and manufacturing method thereof, and motor and generator using the same

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United States of America Patent

PATENT NO 9653198
APP PUB NO 20130076184A1
SERIAL NO

13423535

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Abstract

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In one embodiment, a permanent magnet includes a composition represented by RpFeqMrCusCo100-p-q-r-s (R: rare earth element, M: at least one element selected from Zr, Ti and Hf, 10≦p≦13.5 atomic %, 28≦q≦40 atomic %, 0.88≦r≦7.2 atomic %, 4≦s≦13.5 atomic %), and a metallic structure in which a composition region having an Fe concentration of 28 mol % or more is a main phase. A Cu concentration in the main phase is 5 mol % or more.

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Patent Owner(s)

  • KABUSHIKI KAISHA TOSHIBA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagiwara, Masaya Yokohama, JP 64 204
Horiuchi, Yosuke Tokyo, JP 65 264
Kobayashi, Tsuyoshi Kawasaki, JP 202 2059
Okamoto, Keiko Kawasaki, JP 39 205
Sakurada, Shinya Shinagawa-ku, JP 132 800

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