Shin-etsu Chemical Co., Ltd.

Yuuji Gouki

Hajime Nakamura

Koichi Hirota

Tadao Nomura

Kazuaki Sakaki

Hiroaki Nagata

A rare earth sintered magnet is an anisotropic sintered body comprising NdFeB crystal phase as primary phase and having the composition RTMSiBwherein Ris a rare earth element inclusive of Sc and Y, T is Fe and/or Co, M is Al, Cu, Zn, In, P, S, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb, Mo, Pd, Ag, Cd, Sn, Sb, Hf, Ta, or W, 'a' to 'e' are 12&#x2264;a&#x2264;17, 0&#x2264;c&#x2264;10, 0.3&#x2264;d&#x2264;7, 5&#x2264;e&#x2264;10, and the balance of b, wherein Dy and/or Tb is diffused into the sintered body from its surface.

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Echizen, Japan

Yuuji Gouki