发明授权
- 专利标题: Process of manufacturing a magnetic recording medium
- 专利标题(中): 制造磁记录介质的方法
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申请号: US656792申请日: 1985-01-18
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公开(公告)号: US4557944A公开(公告)日: 1985-12-10
- 发明人: Yoshihiro Arai , Akira Nahara
- 申请人: Yoshihiro Arai , Akira Nahara
- 申请人地址: JPX
- 专利权人: Fuji Photo Film Company Limited
- 当前专利权人: Fuji Photo Film Company Limited
- 当前专利权人地址: JPX
- 优先权: JPX56-49883 19810402; JPX56-49885 19810402; JPX56-49886 19810402
- 主分类号: G11B5/64
- IPC分类号: G11B5/64 ; G11B5/72 ; G11B5/851 ; B05D5/12
摘要:
A nonbinder type of magnetic recording medium is disclosed. The binder is comprised of a non-magnetic support having thereon, in sequence, a thin magnetic metal film laminated using the evaporation technique and a protecting film, with the thin magnetic metal film converted in its surface part alone to a metal oxide layer by being oxidized with oxygen plasma, to a metal nitride layer by being nitrided with nitrogen plasma or to a glow discharge-processed layer. The protecting film includes a high molecular weight compound, a higher fatty acid, a fatty acid ester or a combination thereof, laminated on the metal oxide layer, the metal nitride layer or the glow discharge-processed layer.
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