发明名称 Magnetic recording medium and method for producing the same
摘要 A magnetic recording medium improved in reproduced output over a wide wavelength region, and methods for producing the same are disclosed, the magnetic recording medium having at least two magnetic layers each containing ferromagnetic powders dispersed in binders, which medium comprises a lower magnetic layer containing an acicular ferromagnetic powder having a coercive force of 600 to 2,000 Oe and an upper magnetic layer containing a plate-shaped ferromagnetic alloy powder having a coercive force of 1,000 to 5,000 Oe, a saturation magnetization of 90 to 150 emu/g and an axis easily magnetizable vertically to a plate surface.
申请公布号 US5156908(A) 申请公布日期 1992.10.20
申请号 US19910689587 申请日期 1991.04.19
申请人 FUJI PHOTO FILM CO., LTD. 发明人 ARAKI, HIROAKI;YODEN, KENICHI
分类号 C09D5/23;C09D127/04;C09D127/06;C09D175/06;G11B5/702;G11B5/706;G11B5/708;G11B5/716;G11B5/845 主分类号 C09D5/23
代理机构 代理人
主权项
地址