发明授权
- 专利标题： Acicular ferromagnetic alloy particles and process for producing said particles
- 专利标题（中）： 针状铁磁合金颗粒及其制备方法
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申请号： US513866申请日： 1983-07-14
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公开(公告)号： US4437881A公开(公告)日： 1984-03-20
- 发明人: Akio Mishima , Yoshiro Okuda , Tosiharu Harada , Akira Mukaizaka , Tomoyuki Imai
- 申请人： Akio Mishima , Yoshiro Okuda , Tosiharu Harada , Akira Mukaizaka , Tomoyuki Imai
- 申请人地址： JPX
- 专利权人： Toda Kogyo Corp.
- 当前专利权人： Toda Kogyo Corp.
- 当前专利权人地址： JPX
- 优先权： JPX57-134016 19820731; JPX57-151467 19820830
- 主分类号： G11B5/706
- IPC分类号： G11B5/706 ; B22F9/22
摘要：
Acicular ferromagnetic alloy particles doped with silicon, chromium and nickel and optionally magnesium and a process for producing said particles comprising heating at 300.degree. to 500.degree. C. under reducing atmosphere acicular particles of .alpha.-iron(III) oxide hydroxide doped with silicon, chromium and nickel and optionally magnesium or acicular particles of .alpha.-ferric oxide doped with silicon, chromium and nickel and optionally magnesium obtained by dehydrating the acicular particles of .alpha.-iron(III) oxide hydroxide doped with silicon, chromium and nickel and optionally magnesium are disclosed herein.
公开/授权文献
- US5635956A Compact mouse structure 公开/授权日：1997-06-03
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