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： US754165申请日： 1996-11-22
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公开(公告)号： US5817429A公开(公告)日： 1998-10-06
- 发明人: Junko Ishikawa , Noriyuki Kitaori , Osamu Yoshida , Katsumi Sasaki , Katsumi Endo
- 申请人： Junko Ishikawa , Noriyuki Kitaori , Osamu Yoshida , Katsumi Sasaki , Katsumi Endo
- 申请人地址： JPX Tokyo
- 专利权人： Kao Corporation
- 当前专利权人： Kao Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-313165 19951130; JPX8-253480 19960925
- 主分类号： C23C14/06
- IPC分类号： C23C14/06 ; G11B5/64 ; G11B5/65 ; G11B5/66 ; H01F10/14
摘要：
A magnetic recording medium comprising a substrate and a magnetic layer, wherein the magnetic layer is an Fe--N--O magnetic layer, and a distribution of N density in a depth direction of said Fe--N--O magnetic layer has a maximum value N1 in an intermediate layer section of said Fe--N--O magnetic layer, and the maximum value N1 ranges from 20 to 50 at. %, and an area where a density value is equal to or more than half of said maximum value N1 ranges from 100 to 500 .ANG. in a depth direction of said Fe--N--O magnetic layer. The magnetic recording medium has an excellent C/N.
公开/授权文献
- US4080140A Apparatus for forming bells on plastic tubes 公开/授权日：1978-03-21
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