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1. 发明授权

US07656606B2 Magnetic recording medium, recording/reproducing apparatus, and stamper 失效
标题翻译：磁记录介质，记录/再现装置和压模
公开(公告)号：US07656606B2
公开(公告)日：2010-02-02
申请号：US11944485
申请日：2007-11-23
申请人： Kasuyuki Nakada , Mitsuru Takai , Kazuhiro Hattori
发明人： Kasuyuki Nakada , Mitsuru Takai , Kazuhiro Hattori
IPC分类号： G11B5/596
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743
摘要： A rotary-type magnetic recording medium has servo patterns formed in servo pattern regions on a substrate by patterns including recording regions and non-recording regions. Burst signal units composed of the recording regions or the non-recording regions are formed in burst pattern regions in the servo pattern regions. The burst signal units are formed so that for at least one edge out of both edges along a direction of rotation of the magnetic recording medium, a center in the direction of rotation is positioned closer to the other edge than both ends in the direction of rotation, and a ratio of a length along a radial direction of the magnetic recording medium between both ends and the center of the one edge to a length along the radial direction between both ends of the one edge and both ends of the other edge is in a range of 0.2 or below.
摘要翻译：旋转型磁记录介质具有通过包括记录区域和非记录区域的图案在基板上的伺服图案区域中形成的伺服图案。由记录区域或非记录区域组成的突发信号单元形成在伺服图案区域中的突发模式区域中。突发信号单元被形成为使得对于沿着磁记录介质的旋转方向的两个边缘中的至少一个边缘，旋转方向上的中心比旋转方向上的两端更靠近另一边缘并且沿着一端的两端与一边的中心之间的磁记录介质的沿径向的长度与该另一边的两端两端之间沿径向的长度的比率为范围在0.2以下。

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