- 专利标题: Magnetic recording medium
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申请号: US759192申请日: 1996-12-04
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公开(公告)号: US5811166A公开(公告)日: 1998-09-22
- 发明人: Kiyomi Ejiri , Hiroo Inaba , Shinji Saito , Satoru Hayakawa
- 申请人: Kiyomi Ejiri , Hiroo Inaba , Shinji Saito , Satoru Hayakawa
- 申请人地址: JPX Tokyo
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPXHEI-3-121873 19910425; JPXHEI-3-121875 19910425; JPXHEI-3-198309 19910715; JPXHEI-4-18416 19920108; JPXHEI-4-21782 19920110
- 主分类号: G11B5/66
- IPC分类号: G11B5/66 ; G11B5/70 ; G11B5/716 ; G11B5/733 ; G11B5/738 ; G11B5/842 ; G11B5/848
摘要:
A magnetic recording medium is disclosed, comprising a non-magnetic support having provided thereon at least a lower non-magnetic layer comprising a binder having dispersed therein a non-magnetic powder and an upper magnetic layer comprising a binder having dispersed therein a ferromagnetic powder which has been coated on said lower non-magnetic layer while the lower non-magnetic layer is wet, wherein the upper magnetic layer has an average dry thickness (d) of not more than 1.0 .mu.m and an average thickness variation (.sup..DELTA. d) at the interface between the upper magnetic layer and lower non-magnetic layer is not more than d/2. The magnetic recording medium exhibits excellent electromagnetic characteristics, running properties, and durability.
公开/授权文献
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