发明授权
- 专利标题： Magnetic recording medium and process for producing the same
- 专利标题（中）： 磁记录介质及其制造方法
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申请号： US112142申请日： 1993-08-26
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公开(公告)号： US5538802A公开(公告)日： 1996-07-23
- 发明人: Noriyuki Kitaori , Osamu Yoshida , Hirohide Mizunoya
- 申请人： Noriyuki Kitaori , Osamu Yoshida , Hirohide Mizunoya
- 申请人地址： JPX Chuo-ku
- 专利权人： KAO Corporation
- 当前专利权人： KAO Corporation
- 当前专利权人地址： JPX Chuo-ku
- 优先权： JPX4-249346 19920918; JPX4-249347 19920918; JPX4-249348 19920918; JPX4-249349 19920918; JPX4-249350 19920918; JPX4-256278 19920925
- 主分类号： G11B5/64
- IPC分类号： G11B5/64 ; G11B5/66
摘要：
A magnetic recording medium which is uncostly, can dispense with environmental pollution control measures unlike the case of Co or Cr, is highly durable, permits high density recording and comprises a magnetic film selected from the group consisting of:(1) a Fe--N--O magnetic film comprising 70 to 90 atomic % of Fe, 5 to 15 atomic % of N and 5 to 15 atomic % of O,(2) a Fe--C--O magnetic film comprising 60 to 85 atomic % of Fe, 5 to 35 atomic % of C and 5 to 15 atomic % of O,(3) a Fe--P--O magnetic film comprising 70 to 90 atomic % of Fe, 5 to 25 atomic % of P and 5 to 10 atomic % of O,(4) a Fe--Si--O magnetic film comprising 60 to 90 atomic % of Fe, 5 to 30 atomic % of Si and 5 to 10 atomic % of O,(5) a Fe--B--O magnetic film comprising 65 to 90 atomic % of Fe, 5 to 30 atomic % of B and 5 to 10 atomic % of O, and(6) a Fe--Ni--N--O magnetic film comprising 40 to 75 atomic % of Fe, 10 to 30 atomic % of Ni, 10 to 30 atomic % of N and 5 to 10 atomic % of O.
公开/授权文献
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