发明授权
- 专利标题: Magnetic iron oxide particles and method of producing the same
- 专利标题(中): 磁性氧化铁颗粒及其制备方法
-
申请号: US197180申请日: 1994-02-16
-
公开(公告)号: US5582914A公开(公告)日: 1996-12-10
- 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
- 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: JPX63-333108 19881229; JPX63-333109 19881229; JPX1-48028 19890227; JPX1-48029 19890227
- 主分类号: G11B5/706
- IPC分类号: G11B5/706 ; B32B5/16 ; B05D7/00
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.
公开/授权文献
- US6135583A Storage unit 公开/授权日:2000-10-24