发明名称 MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a magnetic recording medium which has a soft magnetic backing layer with high corrosion resistance and high Bs (saturation magnetization intensity), has high corrosion resistance, achieves high Hc (coercive force) recording and has high S/N performance, to provide a method of manufacturing the magnetic recording medium and to provide a magnetic recording device. SOLUTION: The magnetic recording medium 10 has a magnetic layer showing perpendicular magnetic anisotropy as a recording layer 18 and a material of the soft magnetic backing layer (an upper soft magnetic backing layer 13c and a lower soft magnetic backing layer 13a) formed in a lower layer of the recording layer 18 is alloy formed by adding at least one element of Ta and Nb and further adding Cr to FeCoZr alloy. According to the magnetic recording medium 10 provided with the soft magnetic backing layer, the soft magnetic backing layer having high corrosion resistance and high Bs is formed and the magnetic recording medium achieving high Hc recording and having high S/N performance can be achieved. COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008135137(A) 申请公布日期 2008.06.12
申请号 JP20060321932 申请日期 2006.11.29
申请人 FUJITSU LTD 发明人 KAITSU ISATAKE;INAMURA RYOSAKU
分类号 G11B5/667;G11B5/65;G11B5/738;G11B5/851 主分类号 G11B5/667
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