发明授权
- 专利标题: Permanent magnet and process for producing permanent magnet
- 专利标题(中): 永久磁铁及其制造方法
-
申请号: US12937831申请日: 2009-04-14
-
公开(公告)号: US08333848B2公开(公告)日: 2012-12-18
- 发明人: Izumi Ozeki , Katsuya Kume , Junichi Nakayama , Yuuki Fukuda , Toshinobu Hoshino , Tomokazu Horio
- 申请人: Izumi Ozeki , Katsuya Kume , Junichi Nakayama , Yuuki Fukuda , Toshinobu Hoshino , Tomokazu Horio
- 申请人地址: JP Osaka
- 专利权人: Nitto Denko Corporation
- 当前专利权人: Nitto Denko Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2008-105759 20080415
- 国际申请: PCT/JP2009/057530 WO 20090414
- 国际公布: WO2009/128458 WO 20091022
- 主分类号: H01F1/057
- IPC分类号: H01F1/057
摘要:
The present invention relates to a permanent magnet manufactured by steps of: wet-pulverizing a high-melting metal element-containing organic compound or a precursor of a high-melting ceramic in a solvent together with a magnet raw material to pulverize the magnet raw material into fine particles having a grain size of 3 μm or less and to coat a surface of the pulverized magnet raw material with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; adding a resin binder to the magnet raw material coated with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; producing a slurry by kneading the magnet raw material and the resin binder; molding the slurry into a sheet form to prepare a green sheet; and sintering the green sheet.
公开/授权文献
信息查询
IPC分类: