发明授权
- 专利标题： Magnetic iron oxide particles and method of producing same
- 专利标题（中）： 磁性氧化铁颗粒及其制造方法
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申请号： US967522申请日： 1992-10-27
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公开(公告)号： US5314750A公开(公告)日： 1994-05-24
- 发明人: Atsushi Takedoi , Mamoru Tanihara , Tosiharu Harada , Masaru Isoai , Kazuhiro Fujita
- 申请人： Atsushi Takedoi , Mamoru Tanihara , Tosiharu Harada , Masaru Isoai , Kazuhiro Fujita
- 申请人地址： JPX Hiroshima
- 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 Hiroshima
- 优先权： JPX63-333108 19881229; JPX63-333109 19881229; JPX1-48028 19890227; JPX48029 19890227
- 主分类号： G11B5/706
- IPC分类号： G11B5/706 ; C01G49/02 ; H01F1/06
摘要：
Disclosed herein are magnetic iron oxide particles which have a spindle shape and a substantially uniform particle size and shape, and are substantially free of dendrites and have a large axial ratio (major axial diameter/minor axial diameter) and an excellent print-through characteristic, and a method of producing the same.