发明授权
- 专利标题: Magnetic recording medium
- 专利标题(中): 磁记录介质
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申请号: US317243申请日: 1989-02-28
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公开(公告)号: US5001006A公开(公告)日: 1991-03-19
- 发明人: Shinji Saito , Hiroo Inaba
- 申请人: Shinji Saito , Hiroo Inaba
- 申请人地址: JPX Kanagawa
- 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 Kanagawa
- 优先权: JPX63-46325 19880229
- 主分类号: C09D5/23
- IPC分类号: C09D5/23 ; G11B5/708 ; G11B5/716
摘要:
A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a lower magnetic layer comprising ferromagnetic particles and binders and an upper magnetic layer comprising ferromagnetic particles and binders in this order, wherein the upper magnetic layer contains (a) an abrasive agent having a Mohs' hardness of 6 or more and an average particle diameter of 0.45 .mu.m or more and (b) an abrasive agent having a Mohs' hardness of 6 or more and an average particle diameter of 0.25 .mu.m or less.
公开/授权文献
- US5456159A Motion converter with pinion sector/rack interface 公开/授权日:1995-10-10
信息查询
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