发明授权
US07545595B2 Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle
失效
具有可调节机构的磁盘装置，用于补偿具有偏航角的偏离跟踪位置的写入或加热元件
- 专利标题： Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle
- 专利标题（中）： 具有可调节机构的磁盘装置，用于补偿具有偏航角的偏离跟踪位置的写入或加热元件
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申请号： US11354912申请日： 2006-02-16
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公开(公告)号： US07545595B2公开(公告)日： 2009-06-09
- 发明人: Takehiko Hamaguchi , Atsushi Nakamura , Yasutaka Nishida , Masafumi Mochizuki , Hideki Sawaguchi
- 申请人： Takehiko Hamaguchi , Atsushi Nakamura , Yasutaka Nishida , Masafumi Mochizuki , Hideki Sawaguchi
- 申请人地址： JP Tokyo
- 专利权人： Hitachi Global Storage Technologies Japan, Ltd.
- 当前专利权人： Hitachi Global Storage Technologies Japan, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Antonelli, Terry, Stout & Kraus, LLP.
- 优先权： JP2002-232898 20020809; JP2003-138480 20030516
- 主分类号： G11B5/02
- IPC分类号： G11B5/02
摘要：
A magnetic disk apparatus including: a disk holding data as magnetic information on a magnetic recording film; a head to perform writing and reading of the magnetic information; a rotary actuator to move the head in a radial direction of the disk; plural heat elements in the head to locally heat the disk; a write element in the head to apply a magnetic field to the disk; and means for selecting at least one heat element from the plural heat elements, wherein the means for selecting the heat element selects at least one heat element from the plural heat elements so as to bring a center line of an area heated by the heat element and a center line of the position of the magnetic field generated by the write element into approximate correspondence, in correspondence with a relative angle between the head and a direction of movement of the disk.