发明名称 VERTICAL MAGNETIC RECORDING MEDIUM
摘要 PURPOSE:To obtain a magnetic recording medium having excellent high reproduction output by having he multi-layered structure of ''Permalloy'' films separated by >=1 layers of Ti films on a non-magnetic substrate, forming >=1 layers of the Ti films in the form of discontinuous films and forming a vertically magnetized Co-Cr film on the ''Permalloy'' films. CONSTITUTION:The ''Permalloy film'' 4 and the thin Ti film 6 are formed on the substrate 1 consisting of a heat resistant high polymer film, etc. by stopping once deposition then starting deposition again without depositing continuously the Ti over the entire layer to the entire film thickness. The ''Permalloy'' film 4 is again formed thereon and the vertically magnetized Co-Cr film is formed thereon. The ''Permalloy films'' are otherwise separated by the plural Ti films and the multi-layered structure is made by forming the ''Permally'' film 4 on the substrate 7, the Ti film 8 deposited continuously in the thickness direction, the film 4, the Ti film deposited again after stopping once the deposition in the thickness direction, the film 4 and the film 2. The magnetic recording medium which has excellent recording and recording characteristics and is suitable for high-density recording is thus obtd.
申请公布号 JPS60217522(A) 申请公布日期 1985.10.31
申请号 JP19840074034 申请日期 1984.04.13
申请人 MATSUSHITA DENKI SANGYO KK 发明人 SUGITA RIYUUJI;HONDA KAZUYOSHI;NISHIDA HIROSHI;NODA KIYOUJI
分类号 G11B5/66;G11B5/64;G11B5/667;G11B5/73;G11B5/738 主分类号 G11B5/66
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