发明名称 磁気記録媒体の製造方法
摘要 <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a magnetic recording medium, capable of maintaining high perpendicular orientation of a perpendicular magnetic layer and achieving higher recording density. <P>SOLUTION: A method for manufacturing a magnetic recording medium in which at least a soft magnetic backing layer 31, a seed layer 32, an intermediate layer 33 and a perpendicular magnetic layer 34 are sequentially laminated on a nonmagnetic substrate 30 comprises: forming, as the seed layer 32, an eutectic alloy film including two or more kinds of elements composing an eutectic structure and having columnar crystal nuclei 32a dispersed in dot shapes; and forming a microcrystal film having the crystal nucleus 32a projected from the surface of the eutectic alloy film by applying an etching process to the surface of the eutectic alloy film. <P>COPYRIGHT: (C)2013,JPO&INPIT
申请公布号 JP5894780(B2) 申请公布日期 2016.03.30
申请号 JP20110272325 申请日期 2011.12.13
申请人 昭和電工株式会社 发明人 坂脇 彰;山根 明;茂 智雄
分类号 G11B5/84;G11B5/65;G11B5/667;G11B5/738 主分类号 G11B5/84
代理机构 代理人
主权项
地址