专利名称：Bonded magnet, compound, magnet roll and ferrite powder and a method of
manufacturing the same ud to them 发明人：緒方 安伸，久保田 裕，高見 崇，椎名 修一
中国寓言
申请号：JP1999538181
申请日：19990125
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摘要：General formula: (a1-xrx) o n n [(fe1-ymy) 2O 3] (atomic ratio) (a is Sr and \/ or BA), and R is one or more of rare earth elements containing y and contains a la, and M is at least one lected from the group consisting of CO, Mn, Ni and Zn, and X, y and N are 0.0 A numeral satisfying 1. Ltoreq. X.leq. 0.4, [x \/ (2.6 n)]. Ltoreq. Y.ltoreq. [x \/ (1.6 n)] and 5. Ltoreq. N.ltoreq. 6. The ferrite powder for a bonded magnet having a substantially magnetron plan byte type crystal structure having a basic composition reprented by a basic composition reprented by a total of Si + Ca and a total of Al + CR of 0.13% by weight and an average particle size of Is 0.06% by weight or less.The iron oxide is mixed with iron oxide having a weight of 1 wt% or less to be calcined by calcination and calcined, and the resultant magnetized isotropic ferrite is pulverized and heat treated is performed in the air at a temperature of 750 to 950.degree. C. for 0.5 to 3 hours.
2012文综全国卷申请人：日立金属株式会社mechanical
地址：東京都港区芝浦１丁目２番１号
国籍：JP
代理人：高石 橘馬
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