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    • 1. 发明专利
    • Head slider having heater and information storage device
    • 具有加热器和信息存储设备的头滑块
    • JP2009187595A
    • 2009-08-20
    • JP2008023051
    • 2008-02-01
    • Fujitsu Ltd富士通株式会社
    • FUJIMAKI TORUIMAMURA TAKAHIROIUMI YOSHIAKI
    • G11B5/31G11B21/21
    • PROBLEM TO BE SOLVED: To reduce distance between a reproducing head and a disk when energizing a heater, in a head slider containing a head composed of a reproducing head and a recording head, and a heater.
      SOLUTION: A head slider 15 including both a reproducing head 13 and a recording head 19 provided at a support 15S adjacent to a flow-out side of air of a head slider 15, includes: a pair of heaters 31, 32 provided at a flow-in side and a flow-out side of air of the reproducing head 13 so as to hold the reproducing head 13 between them; a pair of heaters 33, 34 provided at a flow-in side and a flow-out side of air of the recording head 19 so as to hold the recording head 19 between them; and a thermal expansion material 40 having the thermal expansion coefficient lower than the support 15S arranged at the support 15S between the heater 32 and the heater 33. The reproducing head 13 and the recording head 19 are moved very close to the disk side when the heaters 31-34 are energized, then reproducing and recording performance of the head slider 15 is improved.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:在包含由再现头和记录头构成的头部的头部滑动头和加热器中时,为了减少加热器通电时的再现头和盘之间的距离。 解决方案:包括设置在与头滑块15的空气流出侧相邻的支撑件15S处的再现头13和记录头19的头滑块15包括:一对加热器31,32, 在再现头13的空气的流入侧和流出侧,以便将再现头13保持在它们之间; 设置在记录头19的空气的流入侧和流出侧的一对加热器33,34,以便将记录头19保持在它们之间; 以及热膨胀系数40,其热膨胀系数低于设置在加热器32和加热器33之间的支撑件15S处的支撑件15S。当加热器 31-34被通电,从而提高了磁头滑块15的再现和记录性能。 版权所有(C)2009,JPO&INPIT
    • 2. 发明专利
    • Information recording/reproducing device, and method for detecting space between head and medium
    • 信息记录/再现装置,以及用于检测头和中间之间的空间的方法
    • JP2007299452A
    • 2007-11-15
    • JP2006125161
    • 2006-04-28
    • Fujitsu Ltd富士通株式会社
    • IUMI YOSHIAKIIIDA ATSUOIMAMURA TAKAHIROFUJIMAKI TORUYOKOHATA TORU
    • G11B21/21
    • G11B5/6005G11B5/6064
    • PROBLEM TO BE SOLVED: To provide an information recording/reproducing device and a zero point detection method which can reduce the number of times of, and the time of contact between a head and a medium as much as possible, and can therefore minimize the occurrence of failures caused by the contact.
      SOLUTION: The method for detecting space between the head and the medium in the information recording/reproducing device for recording/reproducing information onto/from the recording medium by using the head comprises: gradually reducing minimum space between the head and the recording medium while alternatively changing the size of space between the head and the recording medium to large and small; detecting a signal for judging contact between the hear or a slider including the head and the recording medium; stopping, upon judgment of the contact between the head or the slider including the head and the recording medium, the operation of the driving step to retreat the head away from the recording medium to a predetermined position; and obtaining the driving amount of the head when the contact is detected.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供可以尽可能地减少头部和介质之间的接触次数和时间的信息记录/再现装置和零点检测方法,因此可以 尽可能减少因接触引起的故障的发生。 解决方案:用于检测信息记录/再现装置中的头部和介质之间的空间的方法,用于通过使用头将信息记录/从记录介质再现信息包括:逐渐减小头部和记录之间的最小空间 介质,同时可以将头部和记录介质之间的空间大小改变为大小; 检测用于判断听筒或包括头部和记录介质的滑块之间的接触的信号; 在判断包括头部和记录介质的头部或滑块之间的接触的判断中,停止将头部从记录介质退回到预定位置的驱动步骤的操作; 并且当检测到接触时获得头的驱动量。 版权所有(C)2008,JPO&INPIT
    • 4. 发明专利
    • Optical disk system
    • 光盘系统
    • JP2006244583A
    • 2006-09-14
    • JP2005057329
    • 2005-03-02
    • Fujitsu Ltd富士通株式会社
    • MATSUI KIYOTOFUJIMAKI TORU
    • G11B25/04
    • PROBLEM TO BE SOLVED: To provide an optical disk system whose costs can easily be reduced by small and simple constitution.
      SOLUTION: The optical disk system which carries out optical access by arranging an objective lens 2 facing an optical disk (A) while rotating the flexible optical disk (A) is provided with a pair of stabilizers 3A and 3B which are arranged on the same side as the objective lens 2 with respect to the optical disk (A), which are positioned on both sides of the objective lens 2 in its rotating direction, and which are made to approach the optical disk (A). The pair of stabilizers 3A and 3B are arranged so that spaces with the objective lens 2 may be equal. The stabilizers 3A and 3B are arranged longitudinally so as to be along the radial direction of the optical disk (A).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种光盘系统,其成本可以通过简单和简单的结构容易地降低。 解决方案:通过在旋转柔性光盘(A)的同时布置面向光盘(A)的物镜2执行光学访问的光盘系统设置有一对稳定器3A和3B,其设置在 与物镜2相对于光盘(A)的与旋转方向位于物镜2的两侧相同的一侧,并与物镜(A)接近。 一对稳定器3A和3B被布置成使得与物镜2的空间可以相等。 稳定器3A和3B沿着光盘(A)的径向方向纵向布置。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Magnetic head slider
    • 磁头滑块
    • JP2008065861A
    • 2008-03-21
    • JP2006239232
    • 2006-09-04
    • Fujitsu Ltd富士通株式会社
    • FUJIMAKI TORUIMAMURA TAKAHIROYOKOHATA TORUIUMI YOSHIAKI
    • G11B21/21G11B5/60
    • PROBLEM TO BE SOLVED: To provide a magnetic head slider which can make stabilized low floating by reducing the influence of the intermolecular force.
      SOLUTION: The magnetic head slider of this invention is composed of a main slider provided at the end of the suspension and always in contact with the surface of a magnetic disk, an auxiliary slider sufficiently smaller and lighter than the main slider and elastically supported on it at a certain distance from the magnetic disk surface, and a magnetic head mounted on the auxiliary slider to make information recording and reproducing on the disk.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种磁头滑动器,其可以通过减小分子间力的影响而使稳定的低浮动。 解决方案:本发明的磁头滑块由设置在悬架端部并总是与磁盘表面接触的主滑动件构成,辅助滑块足够小于主滑块并且比弹性地更轻 支撑在与磁盘表面一定距离处的磁头,以及安装在辅助滑块上的磁头,用于在磁盘上进行信息记录和再现。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Device and method for determining head slider contact, and storage medium driving device
    • 用于确定头滑块接触件的装置和方法以及存储介质驱动装置
    • JP2008097760A
    • 2008-04-24
    • JP2006280595
    • 2006-10-13
    • Fujitsu Ltd富士通株式会社
    • IUMI YOSHIAKIIMAMURA TAKAHIROFUJIMAKI TORUYOKOHATA TORU
    • G11B21/21
    • G11B5/40G11B5/3136G11B5/6064
    • PROBLEM TO BE SOLVED: To provide a storage medium driving device and a contact determination method, which highly accurately detect contact between a head element and a storage medium for a time shorter than before. SOLUTION: An AC power source 73 is connected to a writing coil 69 mounted in a head slider 22. The AC power source 73 outputs an AC current of a specific frequency. A measuring circuit 74 measures the time sequence of index values of currents supplied to the writing coil. A frequency analysis circuit 75 executes the Fourier transformation for the measured time sequence of the index values. A component corresponding to a frequency other than a specific frequency, i.e., noise, is eliminated. A control circuit 76 detects contact between a head slider 22 and a storage medium based on the amplitude of the index values after the Fourier transformation. The contact between the head slider 22 and the storage medium is highly accurately detected. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种在比以前更短的时间内高精度地检测头元件和存储介质之间的接触的存储介质驱动装置和接触确定方法。

      解决方案:AC电源73连接到安装在磁头滑块22中的写入线圈69.AC电源73输出特定频率的AC电流。 测量电路74测量提供给写入线圈的电流的索引值的时间顺序。 频率分析电路75对所测量的指标值的时间序列执行傅里叶变换。 消除了与特定频率以外的频率即噪声对应的分量。 控制电路76基于傅里叶变换后的指标值的幅度来检测磁头滑块22和存储介质之间的接触。 磁头滑块22与存储介质之间的接触被高精度地检测。 版权所有(C)2008,JPO&INPIT

    • 9. 发明专利
    • Magnetic head slider and magnetic disk device
    • 磁头滑块和磁盘设备
    • JP2010015636A
    • 2010-01-21
    • JP2008175076
    • 2008-07-03
    • Fujitsu Ltd富士通株式会社
    • FUJIMAKI TORUIMAMURA TAKAHIROSHINSENJI AKIHIDE
    • G11B5/60
    • G11B5/6005
    • PROBLEM TO BE SOLVED: To suppress an unstable vibration mode and to make a head fly stably.
      SOLUTION: A magnetic disk device includes a magnetic recording medium which records information, a magnetic head slider which flies above a surface of the magnetic recording medium to read the information of the magnetic recording medium or to write the information in the magnetic recording medium, a rear rail which includes a rear ABS surface and a rear step bearing surface which is deeper than the rear ABS surface at a side of an air outflow end where air flows out of the magnetic head slider, and one or a plurality of vibration damping grooves which are formed on the rear ABS surface of the rear rail so as to be deeper than the rear ABS surface, and whose periphery is closed, and which includes the rear step bearing surface at a side of an air inflow end. As a result, the magnetic disk device has an enhanced damping effect, can suppress unstable vibration and reduce a flying height of the head.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:抑制不稳定的振动模式并使头部飞行稳定。 解决方案:磁盘装置包括记录信息的磁记录介质,磁头滑动器,其在磁记录介质的表面上方飞行以读取磁记录介质的信息或将信息写入磁记录 介质,后轨道,其包括后ABS表面和后台阶支承表面,其在空气流出端的空气流出端侧比后ABS表面更深,其中空气从磁头滑动器流出,并且一个或多个振动 阻尼槽,其形成在后导轨的后ABS表面上,以比后ABS表面更深,并且其周边闭合,并且其包括在空气流入端侧的后台阶承载表面。 结果,磁盘装置具有增强的阻尼效果,可以抑制不稳定的振动并降低磁头的飞行高度。 版权所有(C)2010,JPO&INPIT