发明名称 |
MAGNETIC RECORDING MEDIUM |
摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium in which the reduction of output and the like due to an increase in spacing loss is hardly generated even if the thickness of a coating layer of a hiding layer and the like is increased and write-in and read-out of information are possible. SOLUTION: A magnetic recording layer 3 having 580-720 oersted coercive force and a squareness ratio of 0.85 or more and formed by using Ba-ferrite having a planar ratio of 1.5 or more as a magnetic material is laminated on a substrate 2 and favorably the coating layer consisting of the hiding layer 7a, a multicolor pattern layers 71-73 and a protective layer 14 and having 8-25 μm entire thickness is laminated on the magnetic recording layer 3 to obtain the magnetic recording medium. |
申请公布号 |
JP2001319318(A) |
申请公布日期 |
2001.11.16 |
申请号 |
JP20000139927 |
申请日期 |
2000.05.12 |
申请人 |
DAINIPPON PRINTING CO LTD |
发明人 |
ISHIZAKA WAKANA;UMEZAWA ATSUSHI |
分类号 |
B42D15/10;G03H1/18;G11B5/70;G11B5/706;G11B5/72;G11B5/80;H01F1/11;H01F1/117 |
主分类号 |
B42D15/10 |
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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