发明名称 Magnetic recording medium and reproduction process using the same
摘要 A magnetic recording medium containing: a support; and a magnetic layer containing a ferromagnetic powder and a binder, wherein the magnetic layer has 100 or less protrusions per 900 mum<2 >on a surface thereof, the protrusion having a height, as measured by AFM, of 30 nm or more, the magnetic layer has a magnetic switching volume of from 0.1x10<-17 >to 5x10<-17 >mL, the magnetic layer has a coercive force of 2,000 Oe (159.2 KA/m) or more, and a surface of the support, the surface being opposed to the magnetic layer, has a PSD in a machine direction, as measured by an interferometric roughness tester with a magnification of 5 times, of from 500 to 4,000 mum<3 >at a space wavelength of 10 mum, and a reproduction process containing reproducing the magnetic recording medium by an MR head.
申请公布号 US6818277(B2) 申请公布日期 2004.11.16
申请号 US20030439173 申请日期 2003.05.16
申请人 FUJI PHOTO FILM CO., LTD. 发明人 TAKAHASHI MASATOSHI;DOUSHITA HIROAKI
分类号 G11B5/64;G11B5/70;G11B5/73;(IPC1-7):G11B5/73 主分类号 G11B5/64
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