发明授权
- 专利标题: Ferromagnetic metal powder
- 专利标题(中): 铁磁金属粉末
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申请号: US266227申请日: 1994-06-27
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公开(公告)号: US5534361A公开(公告)日: 1996-07-09
- 发明人: Seiichi Hisano , Kazuhisa Saito , Satoshi Aizawa , Kazushi Sano , Kazuyuki Matsumoto , Kenji Murata
- 申请人: Seiichi Hisano , Kazuhisa Saito , Satoshi Aizawa , Kazushi Sano , Kazuyuki Matsumoto , Kenji Murata
- 申请人地址: JPX Tokyo
- 专利权人: Dowa Mining Co., Ltd.
- 当前专利权人: Dowa Mining Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX5-186578 19930701
- 主分类号: C22C38/00
- IPC分类号: C22C38/00 ; G11B5/706 ; H01F1/047 ; H01F1/055 ; G11B5/66
摘要:
There is provided a metallic magnetic powder with which one can produce magnetic media for high-density recording that are improved in storage stability and magnetic characteristics.The improved ferromagnetic metal powder contains no more than 0.05 wt % of an element of Group Ia of the periodic table. The powder may optionally contain 0.1-30 atm % of aluminum and/or 0.1-10 atm % of Y or any other rare earth element based on the total quantity of the metal elements present. In either of these cases, the residue of an element of Group IIa of the periodic table is preferably 0.1 wt % or less.
公开/授权文献
- US06158620A Collapsible container 公开/授权日:2000-12-12
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