1
Yamamoto Kazuhiko, Miyake Yuichi, Okada Chikara: Permanent magnet containing rare earth metal, boron and iron.. Santoku Metal, January 4, 1995: EP0632471-A2 (16 worldwide citation)

A permanent magnet is obtained by pulverizing, molding and sintering a starting material containing an alloy ingot. The alloy ingot contains not less than 90% by volume of prismatic crystals each having a prismatic crystal grain size of 0.1 to 50 mu m along a short axis thereof and a prismatic cryst ...


2
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada: Permanent magnet containing rare earth metal, boron and iron. Santoku Metal, Keil & Weinkauf, November 25, 1997: US05690752 (4 worldwide citation)

A permanent magnet is obtained by pulverizing, molding and sintering a starting material containing an alloy ingot. The alloy ingot contains not less than 90% by volume of columnar crystals each having a columnar crystal grain size of 0.1 to 50 .mu.m along a short axis thereof and a columnar crystal ...



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