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    Magnetic head for perpendicular magnetic recording that includes sensor for detecting contact with recording medium
    4.
    发明专利
    Magnetic head for perpendicular magnetic recording that includes sensor for detecting contact with recording medium 有权
    用于磁记录的磁头包括用于用记录介质检测接触的传感器

    公开(公告)号：JP2012178207A

    公开(公告)日：2012-09-13

    申请号：JP2011200204

    申请日：2011-09-14

    申请人： Headway Technologies Inc ,  Sae Magnetics(H K )Ltd ,  ヘッドウェイテクノロジーズ インコーポレイテッド ,  新科實業有限公司SAE Magnetics(H.K.)Ltd.

    发明人： SASAKI YOSHITAKA ,  ITO HIROYUKI ,  SATO KAZUKI ,  IIJIMA ATSUSHI

    IPC分类号： G11B5/31 ,  G11B21/21

    CPC分类号： G11B5/40 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/315 ,  G11B5/607 ,  G11B5/6076

    摘要： PROBLEM TO BE SOLVED: To enable control of the distance between a playback head unit and a recording head unit and the surface of a recording medium, and detection of contact of a part of the medium facing surface with the recording medium, without interruption of protrusion of the part of the medium facing surface.SOLUTION: A magnetic head includes a playback head unit 8, a recording head unit 9, heaters 82, 92, an expansion layer 84 that makes part of a medium facing surface 2 protrude, and a sensor 85 that detects contact of the part of the medium facing surface 2 with the recording medium. The recording head unit 9 includes a main magnetic pole 15, a recording shield 16, and a return magnetic path section 30. The return magnetic path section 30 includes a yoke layer 31 located on the rear side in a direction of movement of the recording medium relative to the main magnet pole 15, a first coupling part 32 that couples the yoke layer 31 and the recording shield 16 to each other, and a second coupling part 35 that is located away from the medium facing surface 2 and couples the yoke layer 31 and the main magnetic pole 15 to each other.

    摘要翻译： 要解决的问题：为了能够控制回放头单元与记录头单元之间的距离和记录介质的表面，以及检测介质面向表面的一部分与记录介质的接触，没有 中断面向介质表面的部分突出。 解决方案：磁头包括重放头单元8，记录头单元9，加热器82,92，使面向介质的表面2的一部分突出的扩展层84和检测到接触的传感器85 介质面2的一部分与记录介质。 记录头单元9包括主磁极15，记录屏蔽16和返回磁路部分30.返回磁路部分30包括位于记录介质的移动方向的后侧的磁轭层31 相对于主磁极15，将轭铁层31和记录屏蔽16彼此连接的第一耦合部分32和位于远离介质相对表面2并耦合轭铁层31的第二耦合部分35 和主磁极15彼此。 版权所有（C）2012，JPO＆INPIT

    Heat-assisted magnetic recording device
    8.
    发明专利
    Heat-assisted magnetic recording device 审中-公开
    热辅助磁记录装置

    公开(公告)号：JP2011258255A

    公开(公告)日：2011-12-22

    申请号：JP2010129950

    申请日：2010-06-07

    申请人： Hitachi Ltd ,  株式会社日立製作所

    发明人： NAMBA IRIZO ,  MATSUMOTO TAKUYA ,  KATO YUKIO

    IPC分类号： G11B5/31 ,  G11B5/02

    CPC分类号： G11B5/3106 ,  G11B5/3136 ,  G11B5/40 ,  G11B5/607 ,  G11B5/6088 ,  G11B2005/0021

    摘要： PROBLEM TO BE SOLVED: To prevent a collision against a disk due to thermal deformation of near-field light emission element, and keep a constant distance between a heat-assisted magnetic recording head and the disk.SOLUTION: A heat-assisted magnetic recording device includes a control unit that obtains a deformation around a near-field light emission element 24 from a temperature sensor 26 for measuring a temperature around the near-field light emission element 24, a table in which a relation between the temperature around the near-field light emission element 24 and the deformation is recorded, the temperature measured by the temperature sensor, and the relation between the temperature and the deformation recorded in the table, and adjusts the distance between the heat-assisted magnetic recording head 2 and the disk 1 by driving a floating height adjusting actuator 27 based on the deformation, so as to avoid a contact thereof.

    摘要翻译： 要解决的问题：为了防止由于近场发光元件的热变形而与盘碰撞，并且在热辅助磁记录头与盘之间保持恒定的距离。 解决方案：热辅助磁记录装置包括控制单元，其从用于测量近场发光元件24周围的温度的温度传感器26获得近场发光元件24周围的变形， 其中记录了近场发光元件24周围的温度与变形之间的关系，由温度传感器测量的温度以及记录在表中的温度与变形之间的关系，并且调整 热辅助磁记录头2和盘1通过基于变形驱动浮动高度调节致动器27，以避免其接触。 版权所有（C）2012，JPO＆INPIT