发明名称 |
Magnetic recording medium and method of producing same |
摘要 |
The present invention relates to a magnetic recording medium for a magnetic disk unit or the like and, more particularly, to a magnetic recording medium having its recording layer made of a magnetic alloy film with uniform magnetic characteristics. The present magnetic recording medium comprises a non-magnetic substrate, at least two sputtered layers of chromium thin film having a bow-like columnar structure which chromium thin film is laminated on the substrate, another sputtered layer of a magnetic alloy thin film laminated on the chromium thin film, and a protective layer laminated on the magnetic alloy thin film. The present invention is effective in reducing modulation of regenerative output relatively independent of a texture roughness of the substrate.
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申请公布号 |
US4950548(A) |
申请公布日期 |
1990.08.21 |
申请号 |
US19890355351 |
申请日期 |
1989.05.23 |
申请人 |
HITACHI, LTD. |
发明人 |
FURUSAWA, KENJI;ABE, KATSUO;KATAOKA, HIROYUKI;TAKAGAKI, TOKUHO;SHIROISHI, YOSHIHIRO;TSUMITA, NORIKAZU |
分类号 |
G11B5/66;G11B5/64;G11B5/65;G11B5/667;G11B5/72;G11B5/73;G11B5/738;G11B5/851 |
主分类号 |
G11B5/66 |
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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