发明名称 MAGNETIC RECORDING MEDIUM
摘要 PROBLEM TO BE SOLVED: To provide a magnetic recording medium in which short wavelength region noise, output, C/N, overwrite characteristics are made superior, demagnetization characteristics in high temperature and high humidity environment, durability, still and friction coefficients are also made superior and low noise, high output and good running performance are specially provided so as to be suitable for a magnetic reluctance type (MR) head. SOLUTION: The magnetic recording medium is made by providing a magnetic layer, in which ferromagnetic metallic powder and linking agent are made into main bodies, on a supporting body. The particles sizes of the metallic powder in terms of average major axis length are 25 to 65nm, the range of average axis ratio is 3.5 to 6, crystalline size is 80 to 130Åand saturated magnetization amount (σs) is 70 to 130Am<SP>2</SP>/kg. The major components are Fe and Co and a Co/Fe ratio is made within the range of 35 to 100at%. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004079004(A) 申请公布日期 2004.03.11
申请号 JP20020233355 申请日期 2002.08.09
申请人 FUJI PHOTO FILM CO LTD 发明人 AONUMA MASASHI;EJIRI KIYOMI
分类号 G11B5/714;G11B5/70;(IPC1-7):G11B5/714 主分类号 G11B5/714
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