发明授权
- 专利标题： Magnetic recording medium and magnetic recording and reproducing apparatus wherein the magnetic layer has a fluctuation of field; A or Hf of not less than 30 Oersteds
- 专利标题（中）： 磁记录介质和磁记录和再现装置，其中磁层具有磁场的波动; A或Hf不小于30奥斯特
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申请号： US09849404申请日： 2001-05-07
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公开(公告)号： US06613428B2公开(公告)日： 2003-09-02
- 发明人: Kazusuke Yamanaka , Tomoo Yamamoto , Yuzuru Hosoe , Nobuyuki Inaba , Yasutaro Uesaka , Masaaki Futamoto , Yoshibumi Matsuda , Kenji Furusawa , Shinji Narishige
- 申请人： Kazusuke Yamanaka , Tomoo Yamamoto , Yuzuru Hosoe , Nobuyuki Inaba , Yasutaro Uesaka , Masaaki Futamoto , Yoshibumi Matsuda , Kenji Furusawa , Shinji Narishige
- 优先权： JP6-214714 19940908
- 主分类号： G11B564
- IPC分类号： G11B564
摘要：
A thin film magnetic recording medium including a magnetic layer having a fluctuation field defined as S/Xirr, where S is magnetic viscosity and Xirr is irreversible susceptibility Xirr. The fluctuation field of the magnetic layer is not less than 15 oersteds.
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