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: US746639申请日: 1985-06-20
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公开(公告)号: US4666754A公开(公告)日: 1987-05-19
- 发明人: Hiroyuki Arioka , Hideki Ishizaki , Toshiaki Ide
- 申请人: Hiroyuki Arioka , Hideki Ishizaki , Toshiaki Ide
- 申请人地址: JPX Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX59-130127 19840626
- 主分类号: C09D5/23
- IPC分类号: C09D5/23 ; C09D7/12 ; C10M177/00 ; C10N40/18 ; G11B5/64 ; G11B5/72 ; G11B5/70
摘要:
A magnetic recording medium comprising a non-magnetic substrate, a magnetic recording layer formed on the substrate, and a top coating layer formed on the magnetic recording layer, wherein the top coating layer contains a fine particulate pigment at its surface, and the surface roughness (R20) of the top coating layer is less than 400 .ANG..
公开/授权文献
- US5176869A Method of manufacturing an inner lined pipe 公开/授权日:1993-01-05
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