发明名称 Magnetic recording medium
摘要 Provided is a magnetic recording medium having improved electromagnetic characteristics, particularly, in which the C/N ratio in the high-density recording region is markedly improved. The magnetic recording medium comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic hexagonal ferrite powder and a binder in this order on a support. The number of magnetic aggregates present in the magnetic layer that are equal to or higher than 0.5 mum in size and have a magnetic intensity equal to or greater than 20 times the average value of magnetization turbulence obtained from a magnetic force image measured by a magnetic force microscope is equal to or less than 100/2,000 mum<2>.
申请公布号 US6713171(B2) 申请公布日期 2004.03.30
申请号 US20020216831 申请日期 2002.08.13
申请人 FUJI PHOTO FILM CO. LTD. 发明人 OZAWA TAKAKO;DOUSHITA HIROAKI;HARASAWA TAKESHI
分类号 G11B5/706;G11B5/708;(IPC1-7):G11B5/706 主分类号 G11B5/706
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