发明名称 |
MAGNETIC RECORDING MEDIUM AND METHOD FOR PRODUCING THE SAME |
摘要 |
<p>A magnetic recording medium comprising a substrate and a ferromagnetic metal layer, wherein the ferromagnetic metal layer includes hydrated amorphous cobalt oxide, a X-ray photoelectron spectra which is characterized in that, in the Co2p spectrum, a ratio of a peak height at 785.9+/-0.3 eV to that at 780.0+/-0.3 eV is 40/100 or less when a background (BG) line is drawn between lower energy side leading edge points of peaks at 780.0+/-0.3 eV (2p3/2) and 795.6+/-0.3 eV (2p1/2) and, in the O1s spectrum, a ratio of a peak height at 529.3+/-0.4 eV to that at 530.8+/-0.4 eV is from 100:110 to 100:50 when a background line is drawn between the lower energy side leading edge point and the higher energy side leading edge point of a complex peak at 530.5+/-2.5 eV from which the peaks at 529.3+/-0.4 eV and 530.8+/-0.4 are derived by peak synthesis, which has good corrosion and wear resistance.</p> |
申请公布号 |
EP0198472(B1) |
申请公布日期 |
1991.05.15 |
申请号 |
EP19860105179 |
申请日期 |
1986.04.15 |
申请人 |
HITACHI MAXELL LTD. |
发明人 |
NIIMI, HIDEAKI;ISOE, NOBORU;WAKAI, KUNIO;MIZUMURA, TETSUO |
分类号 |
C10M103/04;C10M177/00;C10N10/16;C10N40/18;G11B5/64;G11B5/65;G11B5/66;G11B5/706;G11B5/72;G11B5/73 |
主分类号 |
C10M103/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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