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    • 54. 发明授权
    • Magnetic recording medium
    • 磁记录介质
    • US06391423B1
    • 2002-05-21
    • US09584191
    • 2000-05-31
    • Satoshi SatoShinichi Matsumura
    • Satoshi SatoShinichi Matsumura
    • G11B5733
    • G11B5/73Y10S428/90Y10T428/24355Y10T428/31725
    • A magnetic recording medium exhibiting satisfactory electromagnetic conversion characteristic and movement characteristics and incorporating a non-magnetic support member made of aromatic polyamide film. The magnetic recording medium incorporating a non-magnetic support member having a principal plane on which a magnetic layer constituted by at least a thin metal film is formed, wherein said non-magnetic support member has said principal plane on which at least said thin metal film is formed and on which small projections, the height of each of which is 10 nm to 40 nm from the central surface, are formed at a density of 1,000,000 pieces/mm2 to 20,000,000 pieces/mm2, and a bearing curve of the principal plane of said non-magnetic support member on which said small projection have been formed is such that the gradient of a straight line is −0.3 or smaller when a range of 10 nm in the upper portion is linearly approximated with a straight line by a least square approximation and the intercept is 10 nm to 40 nm.
    • 表现出令人满意的电磁转换特性和运动特性的磁记录介质,并结合由芳族聚酰胺薄膜制成的非磁性支撑件。 该磁记录介质包括具有主平面的非磁性支撑构件,在该主平面上形成有至少由金属薄膜构成的磁性层,其中所述非磁性支撑构件具有至少所述薄金属膜 并且其中每个的中心表面的高度为10nm至40nm的小突起以1,000,000个/ mm 2至20,000,000个/ mm 2的密度形成,并且其主平面的轴承曲线 形成了所述小突起的所述非磁性支撑构件使得当上部的10nm的范围用直线近似近似近似的直线时,直线的梯度为-0.3或更小 截距为10nm〜40nm。