发明授权
- 专利标题： Master information magnetic recording apparatus and method for manufacturing magnetic recording medium in which information is recorded by using this
- 专利标题（中）： 主信息磁记录装置及其记录信息的磁记录介质的制造方法
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申请号： US10355860申请日： 2003-01-30
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公开(公告)号： US06859339B2公开(公告)日： 2005-02-22
- 发明人: Yasuaki Ban , Keizo Miyata , Taizou Hamada , Kouji Taniguchi , Masaya Sakaguchi
- 申请人： Yasuaki Ban , Keizo Miyata , Taizou Hamada , Kouji Taniguchi , Masaya Sakaguchi
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Merchant & Gould P.C.
- 优先权： JP2002-023022 20020131
- 主分类号： G11B5/86
- IPC分类号： G11B5/86
摘要：
The master information recording apparatus 100 includes a master information carrier, a master information carrier facing member, and a magnetic field applying member. A ferromagnetic thin film pattern formed on the surface of the master information carrier includes not less than two kinds of different patterns each having a different pattern angle showing an angle with respect to the direction of the relative movement between a magnetic head and a rotating magnetic recording medium. The magnetic field applying unit applies a magnetic field along the direction, which is perpendicular to the direction shown by an angle that is smaller than the pattern angle of the maximum pattern and larger than the minimum pattern angle of the pattern among the not less than two kinds of patterns.