| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic recording medium having improved electromagnetic conversion characteristics, in particular high density recording characteristics and excellent durability and showing an improved error rate in particular in a high density recording region. SOLUTION: This magnetic recording medium is produced by forming a base layer which is substantially nonmagnetic and a magnetic layer having dispersion of a ferromagnetic metal fine powder or a ferromagnetic hexagonal ferrite fine powder in a binder in this order on a supporting body. In this magnetic recording medium, signals of 0.2 to 2Gbit/inch<2> area recording density can be recorded. The magnetic layer has 0.05 to 0.25μm dry film thickness, 8.0×10<-3> to 1.0×10<-3> emu/cm<2>Φm, and >=1800Oe coercive force. The supporting body shows <=0.5% thermal shrinkage in any direction on the plane under both conditions of 100 deg.C for 30min and 80 deg.C for 30min.
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