发明名称 A MAGNETIC RECORDING MEDIUM
摘要 There is disclosed a magnetic recording medium comprising a support and provided thereon a plurality of layers. The layers comprise an outermost magnetic layer and a lower magnetic layer, wherein the outermost magnetic layer contains carbon black having an average primary particle size ranging from 30 m .mu. to 300 m .mu., and the lower magnetic layer contains carbon black having an average primary particle size ranging from 5 m .mu. to 30 m .mu..
申请公布号 CA2005250(C) 申请公布日期 2000.02.15
申请号 CA19892005250 申请日期 1989.12.12
申请人 KOYAMA, NOBORU;NAKANO, YASUSHI;KAWAHARA, SETSUKO;NAKAJIMA, NOBORU 发明人 KOYAMA, NOBORU;NAKANO, YASUSHI;KAWAHARA, SETSUKO;NAKAJIMA, NOBORU
分类号 G11B5/708;G11B5/714;G11B5/716;(IPC1-7):G11B5/716 主分类号 G11B5/708
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