发明公开
EP0248665A2 Rare earth-iron magnet and method of making same
失效
Seltene Erden-Eisenmagnet und Herstellungsverfahren。
- 专利标题: Rare earth-iron magnet and method of making same
- 专利标题(中): Seltene Erden-Eisenmagnet und Herstellungsverfahren。
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申请号: EP87304948.0申请日: 1987-06-04
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公开(公告)号: EP0248665A2公开(公告)日: 1987-12-09
- 发明人: Suzuki, Teruo , Kishi, Matsuo , Muraishi, Katsuyoshi , Ogawa, Kenichi , Takashio, Hiroshi
- 申请人: SEIKO INSTRUMENTS INC.
- 申请人地址: 31-1, Kameido 6-chome Koto-ku Tokyo 136 JP
- 专利权人: SEIKO INSTRUMENTS INC.
- 当前专利权人: SEIKO INSTRUMENTS INC.
- 当前专利权人地址: 31-1, Kameido 6-chome Koto-ku Tokyo 136 JP
- 代理机构: Petersen, Richard Courtenay
- 优先权: JP131487/86 19860606; JP131488/86 19860606; JP154456/86 19860701; JP155751/86 19860702
- 主分类号: H01F1/04
- IPC分类号: H01F1/04 ; H01F1/08
摘要:
A rare earth-iron magnet consisting of a magnetic phase based on one or more rare earth elements and iron, has a sealing agent (2) filling the voids between grains of the magnet, and a coating layer (3) formed on the surface of the magnet.
公开/授权文献
- EP0248665B1 Rare earth-iron magnet and method of making same 公开/授权日:1994-05-18
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