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    • 1. 发明授权
    • Thermally assisted magnetic recording device
    • 热辅助磁记录装置
    • US08526274B2
    • 2013-09-03
    • US13153073
    • 2011-06-03
    • Irizo NaniwaTakuya MatsumotoYukio Kato
    • Irizo NaniwaTakuya MatsumotoYukio Kato
    • G11B11/00
    • G11B5/3106G11B5/3136G11B5/40G11B5/607G11B5/6088G11B2005/0021
    • There is provided a thermally assisted magnetic recording device capable of preventing collision between a thermally assisted magnetic recording head and a disk due to thermal deformation of a near-field transducer. The thermally assisted magnetic recording device includes a temperature sensor for measuring the temperature in the vicinity of the near-field transducer, a table that stores the relationship between temperature and deformation in the vicinity of the near-field transducer, and a control unit. The control unit calculates the deformation in the vicinity of the near-field transducer, from the temperature measured by the temperature sensor and the relationship between temperature and deformation stored in the table. Then, the control unit drives the flying height control actuator according to the calculated deformation to control the distance between the thermally assisted magnetic recording and the disk in order to avoid contact between them.
    • 提供了一种热辅助磁记录装置,其能够防止由于近场换能器的热变形引起的热辅助磁记录头与盘的碰撞。 热辅助磁记录装置包括用于测量近场换能器附近的温度的温度传感器,存储近场换能器附近的温度与变形之间的关系的表以及控制单元。 控制单元根据由温度传感器测量的温度和存储在表中的温度与变形之间的关系来计算近场换能器附近的变形。 然后,控制单元根据计算出的变形驱动飞行高度控制致动器,以控制热辅助磁记录与盘之间的距离,以避免它们之间的接触。
    • 3. 发明申请
    • THERMALLY ASSISTED MAGNETIC RECORDING DEVICE
    • 热辅助磁记录装置
    • US20110299367A1
    • 2011-12-08
    • US13153073
    • 2011-06-03
    • IRIZO NANIWATakuya MatsumotoYukio Kato
    • IRIZO NANIWATakuya MatsumotoYukio Kato
    • G11B11/00
    • G11B5/3106G11B5/3136G11B5/40G11B5/607G11B5/6088G11B2005/0021
    • There is provided a thermally assisted magnetic recording device capable of preventing collision between a thermally assisted magnetic recording head and a disk due to thermal deformation of a near-field transducer. The thermally assisted magnetic recording device includes a temperature sensor for measuring the temperature in the vicinity of the near-field transducer, a table that stores the relationship between temperature and deformation in the vicinity of the near-field transducer, and a control unit. The control unit calculates the deformation in the vicinity of the near-field transducer, from the temperature measured by the temperature sensor and the relationship between temperature and deformation stored in the table. Then, the control unit drives the flying height control actuator according to the calculated deformation to control the distance between the thermally assisted magnetic recording and the disk in order to avoid contact between them.
    • 提供了一种热辅助磁记录装置,其能够防止由于近场换能器的热变形引起的热辅助磁记录头与盘的碰撞。 热辅助磁记录装置包括用于测量近场换能器附近的温度的温度传感器,存储近场换能器附近的温度与变形之间的关系的表以及控制单元。 控制单元根据由温度传感器测量的温度和存储在表中的温度与变形之间的关系来计算近场换能器附近的变形。 然后,控制单元根据计算出的变形驱动飞行高度控制致动器,以控制热辅助磁记录与盘之间的距离,以避免它们之间的接触。
    • 4. 发明授权
    • Thermally-assisted magnetic recording head
    • 热辅助磁记录头
    • US08437228B2
    • 2013-05-07
    • US13057585
    • 2009-06-09
    • Naoki MatsushimaSatoshi AraiTakuya MatsumotoJun-ichiro ShimizuIrizo Naniwa
    • Naoki MatsushimaSatoshi AraiTakuya MatsumotoJun-ichiro ShimizuIrizo Naniwa
    • G11B11/00
    • G11B5/314G02B6/4214G11B5/6005G11B5/6088G11B2005/0005G11B2005/0021
    • A thermally assisted magnetic recording head with highly efficient optical coupling, while guiding a laser beam from a semiconductor laser element, i.e., a light source, to a leading end thereof, eliminating an influence due to heat generated by the element, and having excellent floating characteristics. The thermally assisted magnetic recording head includes a substrate 2 having a first optical waveguide 1, a semiconductor laser element 100, and a slider 4 having a second optical waveguide 3 formed on an end surface. The semiconductor laser element 100 is fixed on the substrate 2 so that light emitted from the element 100 propagates through the first optical waveguide 1 and a slider 4 is fixed on the substrate 2 so that light emitted from the first optical waveguide 1 propagates through the second optical waveguide 3. High optical coupling efficiency is then achieved, while ensuring both heat-dissipating and floating characteristics.
    • 一种具有高效光耦合的热辅助磁记录头,同时将来自半导体激光元件(即光源)的激光束引导到其前端,消除了由元件产生的热量的影响,并且具有优异的浮动 特点 热辅助磁记录头包括具有第一光波导1,半导体激光元件100和具有形成在端面上的第二光波导3的滑块4的基板2。 半导体激光元件100固定在基板2上,使得从元件100发射的光通过第一光波导1传播,并且滑块4固定在基板2上,使得从第一光波导1发射的光通过第二光波导1传播。 光波导3.然后实现高光耦合效率,同时确保散热和浮动特性。
    • 6. 发明申请
    • Heat Assisted Magnetic Recording Head Gimbal Assembly and Hard Disk Drive Using Same
    • 热辅助磁记录头万向节组装和硬盘驱动器使用相同
    • US20130322221A1
    • 2013-12-05
    • US13985982
    • 2011-02-22
    • Irizo NaniwaTakuya MatsumotoSatoshi Arai
    • Irizo NaniwaTakuya MatsumotoSatoshi Arai
    • G11B13/04
    • G11B13/04G11B5/314G11B5/4826G11B5/6088G11B2005/0021
    • Provided is a structure of a heat assisted magnetic recording head gimbal assembly that allows common inexpensive TE-mode LDs to be utilized. The heat assisted magnetic recording head gimbal assembly comprises: a light source unit having a light emitting element mounted on a parabolic solid submount; a heat assisted magnetic recording head comprising a magnetic recording element, a read element, a near field transducer, and a waveguide for guiding light from the light emitting element into the near field transducer; a slider including the heat assisted magnetic recording head and which flies above a disk; and a suspension for supporting the slider. The light emitting element of the light source unit is an edge-emitting LD and the light source unit is arranged on the opposite side of an bearing surface of the slider such that the light emitting surface of the light emitting element faces the slider, apertures are created in the suspension, and the slider is connected to the suspension in a way that a part of the light source unit penetrates through the apertures of the suspension.
    • 提供了允许使用普通廉价的TE模式LD的热辅助磁记录头万向架组件的结构。 热辅助磁记录头万向节组件包括:光源单元,其具有安装在抛物线固体底座上的发光元件; 包括磁记录元件,读取元件,近场换能器和用于将来自发光元件的光引导到近场换能器中的波导的热辅助磁记录头; 包括热辅助磁记录头并且在盘上方飞行的滑块; 以及用于支撑滑块的悬架。 光源单元的发光元件是边缘发光LD,并且光源单元布置在滑块的支承表面的相对侧上,使得发光元件的发光表面面向滑块,孔是 在悬架中产生,并且滑块以使得光源单元的一部分穿过悬架的孔的方式连接到悬架。
    • 7. 发明授权
    • Heat assisted magnetic recording head gimbal assembly and hard disk drive using same
    • 热辅助磁记录头万向架组件和硬盘驱动器使用相同
    • US08923099B2
    • 2014-12-30
    • US13985982
    • 2011-02-22
    • Irizo NaniwaTakuya MatsumotoSatoshi Arai
    • Irizo NaniwaTakuya MatsumotoSatoshi Arai
    • G11B11/00G11B5/48G11B5/31G11B5/60G11B13/04G11B5/00
    • G11B13/04G11B5/314G11B5/4826G11B5/6088G11B2005/0021
    • Provided is a structure of a heat assisted magnetic recording head gimbal assembly that allows common inexpensive TE-mode LDs to be utilized. The heat assisted magnetic recording head gimbal assembly comprises: a light source unit having a light emitting element mounted on a parabolic solid submount; a heat assisted magnetic recording head comprising a magnetic recording element, a read element, a near field transducer, and a waveguide for guiding light from the light emitting element into the near field transducer; a slider including the heat assisted magnetic recording head and which flies above a disk; and a suspension for supporting the slider. The light emitting element of the light source unit is an edge-emitting LD and the light source unit is arranged on the opposite side of an bearing surface of the slider such that the light emitting surface of the light emitting element faces the slider, apertures are created in the suspension, and the slider is connected to the suspension in a way that a part of the light source unit penetrates through the apertures of the suspension.
    • 提供了允许使用普通廉价的TE模式LD的热辅助磁记录头万向架组件的结构。 热辅助磁记录头万向节组件包括:光源单元,其具有安装在抛物线固体底座上的发光元件; 包括磁记录元件,读取元件,近场换能器和用于将来自发光元件的光引导到近场换能器中的波导的热辅助磁记录头; 包括热辅助磁记录头并且在盘上方飞行的滑块; 以及用于支撑滑块的悬架。 光源单元的发光元件是边缘发光LD,并且光源单元布置在滑块的支承表面的相对侧上,使得发光元件的发光表面面向滑块,孔是 在悬架中产生,并且滑块以使得光源单元的一部分穿过悬架的孔的方式连接到悬架。