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公开(公告)号：US07095587B2
公开(公告)日：2006-08-22
申请号：US10659372
申请日：2003-09-11
申请人： Masayuki Kurita , Toshiya Shiramatsu , Hideaki Tanaka , Sunao Yonekawa , Koji Miyake , Hidekazu Kohira , Mikio Tokuyama
发明人： Masayuki Kurita , Toshiya Shiramatsu , Hideaki Tanaka , Sunao Yonekawa , Koji Miyake , Hidekazu Kohira , Mikio Tokuyama
IPC分类号： G11B5/127
CPC分类号： G11B5/6064 , G11B5/607
摘要： In a slider using thermal expansion type, being adjustable on a flying height thereof, having problems to be solved, i.e., to reduce the electric power consumption, and to lesson the heat load upon a reproducing element thereof, wherein a heating device 4 is located separating from tip portions of the recording and reproducing elements 2 and 3. Also, for deforming only the vicinity of the heating device 4 and the recording and reproducing elements 2 and 3, so as to protrude from, the heating device 4 and the recording and reproducing elements 2 and 3 are surrounded by a resin film 6 of small rigidity, thereby increasing an amount of protrusion of the recording and reproducing elements 2 and 3 per a unit of electric power, but without increasing temperature of the reproducing element 3, with an aim of the structure of cutting off the force from materials of circumferences against the deformation.
摘要翻译： 在使用热膨胀型的滑块中，在其飞行高度上可调节，具有要解决的问题，即降低电力消耗，以及对其再生元件上的热负荷的教训，其中加热装置4位于 与记录和再现元件2和3的尖端部分分离。 此外，为了仅使加热装置4和记录再现元件2,3的附近变形，从加热装置4和记录再现元件2和3突出，被小型树脂膜6包围 刚性，从而以每单位电力增加记录和再现元件2和3的突出量，但是不增加再现元件3的温度，其目的是将周围材料的力切断 变形。
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公开(公告)号：US20050024775A1
公开(公告)日：2005-02-03
申请号：US10659372
申请日：2003-09-11
申请人： Masayuki Kurita , Toshiya Shiramatsu , Hideaki Tanaka , Sunao Yonekawa , Koji Miyake , Hidekazu Kohira , Mikio Tokuyama
发明人： Masayuki Kurita , Toshiya Shiramatsu , Hideaki Tanaka , Sunao Yonekawa , Koji Miyake , Hidekazu Kohira , Mikio Tokuyama
CPC分类号： G11B5/6064 , G11B5/607
摘要： In a slider using thermal expansion type, being adjustable on a flying height thereof, having problems to be solved, i.e., to reduce the electric power consumption, and to lesson the heat load upon a reproducing element thereof, wherein a heating device 4 is located separating from tip portions of the recording and reproducing elements 2 and 3. Also, for deforming only the vicinity of the heating device 4 and the recording and reproducing elements 2 and 3, so as to protrude from, the heating device 4 and the recording and reproducing elements 2 and 3 are surrounded by a resin film 6 of small rigidity, thereby increasing an amount of protrusion of the recording and reproducing elements 2 and 3 per a unit of electric power, but without increasing temperature of the reproducing element 3, with an aim of the structure of cutting off the force from materials of circumferences against the deformation.
摘要翻译： 在使用热膨胀型的滑块中，在其飞行高度上可调节，具有要解决的问题，即降低电力消耗，以及对其再生元件上的热负荷的教训，其中加热装置4位于 与记录和再现元件2和3的尖端部分分离。另外，为了仅使加热装置4和记录再生元件2,3的附近变形，从加热装置4和记录再生元件2,3的突出部 再现元件2和3由刚性小的树脂膜6包围，从而每单位电力增加记录和再现元件2和3的突出量，但是不增加再现元件3的温度， 目的是将结构材料从周向材料上切下来抵抗变形。
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23.发明授权Magnetic disk drive, preamplifier for magnetic disk drive, flexible printed cable assembly for magnetic disk drive 失效磁盘驱动器，用于磁盘驱动器的前置放大器，用于磁盘驱动器的柔性印刷电缆组件公开(公告)号：US07630160B2
公开(公告)日：2009-12-08
申请号：US12006683
申请日：2008-01-04
申请人： Masayuki Kurita , Masashi Murai , Hideaki Tanaka , Noriaki Satoh , Hiroshi Fukuda , Tsukasa Fujimori
发明人： Masayuki Kurita , Masashi Murai , Hideaki Tanaka , Noriaki Satoh , Hiroshi Fukuda , Tsukasa Fujimori
CPC分类号： G11B33/121
摘要： Embodiments of the present invention help to improve the cost, mountability, and reliability of a magnetic disk drive that regulates a fly height of a magnetic head slider correspondingly to the operating altitude of the drive by using an air pressure sensor and a heater. According to one embodiment, a preamplifier is a semiconductor chip formed by three-dimensionally laminating thin film circuits on a bulk silicon wafer. An air pressure sensor is integrally formed on the semiconductor chip through a semiconductor process. The air pressure sensor is configured to include an isolating cavity, a diaphragm that deflecting in response to a change in a pressure difference between the isolating cavity and the outside, and lower and upper electrodes and for detecting variation in electrostatic capacitance. The preamplifier including the air pressure sensor integrally formed therein is attached to a flexible printed cable (FPC) to oppose the FPC. A through-hole is provided in a portion opposite the air pressure sensor of the FPC to introduce air pressure in an operating environment into a diaphragm of the air pressure sensor.
摘要翻译： 本发明的实施例有助于提高磁盘驱动器的成本，安装性和可靠性，其通过使用空气压力传感器和加热器来调节磁头滑块的飞行高度，与驱动器的操作高度相对应。 根据一个实施例，前置放大器是通过在体硅晶片上三维层叠薄膜电路而形成的半导体芯片。 通过半导体工艺在半导体芯片上整体地形成气压传感器。 空气压力传感器被构造成包括隔离腔，响应于隔离腔和外部之间的压差以及下部和上部电极的变化以及用于检测静电电容的变化而偏转的隔膜。 包括一体地形成在其中的空气压力传感器的前置放大器附接到柔性印刷电缆（FPC）以与FPC相对。 在与FPC的空气压力传感器相对的部分设置通孔，以将操作环境中的空气压力引入空气压力传感器的隔膜。
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公开(公告)号：US07457073B2
公开(公告)日：2008-11-25
申请号：US11706934
申请日：2007-02-14
CPC分类号： G11B19/26 , G11B5/5526 , G11B5/6005 , G11B5/6064 , G11B19/00 , G11B19/20
摘要： Embodiments in accordance with the present invention allow a magnetic disk drive to achieve noise reduction and low power consumption through rotation at a low speed and a high transfer rate through rotation at a high speed while allowing reliability to be maintained and achieving an improved recording density. An embodiment of a magnetic disk drive in accordance with the present invention includes, a magnetic disk medium driven at a plurality of rotational speeds, a magnetic head for recording and reproducing data in and from the magnetic disk medium, a heater for controlling a flying height of the magnetic head, and a control unit for controlling the current to the heater, and in that the control unit controls the current to the heater. The control unit controls the current to the heater according to the plurality of rotational speeds.
摘要翻译： 根据本发明的实施例允许磁盘驱动器通过以高速旋转而以低速旋转和高传送速率实现噪声降低和低功耗，同时允许保持可靠性并实现改善的记录密度。 根据本发明的磁盘驱动器的实施例包括：以多个旋转速度驱动的磁盘介质，用于在磁盘介质中记录和再现数据的磁头，用于控制飞行高度的加热器 以及用于控制到加热器的电流的控制单元，并且控制单元控制到加热器的电流。 控制单元根据多个转速来控制加热器的电流。
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公开(公告)号：US07278902B1
公开(公告)日：2007-10-09
申请号：US11375721
申请日：2006-03-14
申请人： Masayuki Kurita , Remmelt Pit , Shozo Saegusa , Toshiya Shiramatsu , Mike Suk , Hideaki Tanaka
发明人： Masayuki Kurita , Remmelt Pit , Shozo Saegusa , Toshiya Shiramatsu , Mike Suk , Hideaki Tanaka
IPC分类号： B24B49/00
CPC分类号： G11B5/012 , G11B5/8404 , Y10T29/47 , Y10T29/49048
摘要： Various embodiments of the present invention pertain to enabling location specific burnishing of a disk. According to one embodiment, the smoothness of a disk is evaluated by gliding over a disk to determine if there is an asperity on the disk. If there is an asperity on the disk, a location of the asperity is stored to enable location specific burnishing of the disk.
摘要翻译： 本发明的各种实施例涉及使盘的位置特定抛光。 根据一个实施例，通过在盘上滑动来评估盘的平滑度，以确定盘上是否存在粗糙度。 如果磁盘上有一个粗体，则会存储一个粗糙部分，以便对磁盘进行位置特定的抛光。
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公开(公告)号：US07124625B1
公开(公告)日：2006-10-24
申请号：US11131736
申请日：2005-05-17
申请人： Masayuki Kurita , Remmelt Pit , Shozo Saegusa , Toshiya Shiramatsu , Mike Suk , Hideaki Tanaka
发明人： Masayuki Kurita , Remmelt Pit , Shozo Saegusa , Toshiya Shiramatsu , Mike Suk , Hideaki Tanaka
CPC分类号： G11B5/582 , G11B5/3133 , G11B5/314 , G11B5/40 , G11B5/455 , G11B5/4555 , G11B5/6005 , G11B5/6064 , G11B5/607 , G11B5/6076
摘要： A glide-height disk-tester operates with the test disk rotating at a predetermined constant rotational speed and uses a glide head with an electrically-resistive heater and a thermally-responsive protrusion pad located on its trailing end. The linear velocity of the disk relative to the slider maintains the slider at its nominal fly height, which is typically higher than any expected asperity. With no current applied to the heater, the protrusion pad is generally flush with the air-bearing surface of the slider. Increasing levels of current are applied to the heater, which causes movement of the protrusion pad toward the disk surface. When the pad contacts an asperity, the current level applied at the instant of asperity contact is recorded. The applied current level can be correlated to the glide height from a previous calibration process using a calibration disk with known calibration bump heights.
摘要翻译： 滑行高度盘式测试仪以测试盘以预定的恒定转速旋转，并且使用具有电阻加热器的滑动头和位于其后端的热响应突起垫。 盘相对于滑块的线速度将滑块保持在其标称飞行高度，其通常高于任何预期的粗糙度。 在没有电流施加到加热器的情况下，突出垫通常与滑块的空气轴承表面齐平。 增加电流的电流被施加到加热器，这导致突起垫朝着盘表面移动。 当焊盘接触不均匀时，记录在粗糙接触瞬间施加的电流电平。 施加的电流水平可以使用具有已知校准凸块高度的校准盘与先前校准过程的滑移高度相关联。
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公开(公告)号：US20060119974A1
公开(公告)日：2006-06-08
申请号：US11282221
申请日：2005-11-18
CPC分类号： G11B5/6064 , G11B5/607 , G11B5/6082
摘要： Embodiments of the invention appropriately control the flying height of a magnetic head slider as necessary without making the magnetic head slider touch the magnetic disk. In one embodiment, when a magnetic disk drive is started, the level of electric power predefined for the ordinary temperature (room temperature) is read in from the internal memory of an MPU. A temperature sensor measures the internal temperature of the magnetic disk drive and sends it to the MPU. According to the temperature sent from the temperature sensor, the MPU calculates the level of electric power which should be applied to a flying height adjustment structure. According to the calculated electric power, the MPU increases or decreases the electric power applied to the flying height adjustment structure. At a flying height controlled (corrected) by the flying height adjustment structure, a magnetic head slider performs read/write on a magnetic disk.
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公开(公告)号：US08767338B2
公开(公告)日：2014-07-01
申请号：US12973301
申请日：2010-12-20
CPC分类号： G11B5/6005 , G11B5/3133 , G11B5/6064
摘要： A magnetic head slider is disclosed. The magnetic head slider includes a slider substrate and a laminated magnetic head element on the slider substrate. Additionally, the laminated magnetic head element includes a magnetoresistance effect element and a recording magnetic pole formed in a layer higher than the magnetoresistance effect element. A first thin-film resistor heater element is formed in a position further from an air bearing surface than the magnetoresistance effect element and the magnetic recording pole and a second film resistor heater element is formed in a layer lower than the first thin-film resistor heater element, and closer to the air bearing surface and the magnetoresistance effect element than the first heater element. A thin-film resistor sensor element is formed in a layer higher than the second thin-film heater element and closer to the air bearing surface than the second heater element.
摘要翻译： 公开了磁头滑块。 磁头滑块包括滑块基板和滑块基板上的层叠磁头元件。 此外，层叠磁头元件包括形成在比磁阻效应元件高的层中的磁阻效应元件和记录磁极。 第一薄膜电阻加热器元件形成在比空气轴承表面比磁阻效应元件和磁记录极更远的位置，并且第二薄膜电阻加热器元件形成在比第一薄膜电阻器加热器低的层中 元件，并且比第一加热元件更靠近空气轴承表面和磁阻效应元件。 薄膜电阻传感器元件形成在比第二薄膜加热器元件高的层中，并且比第二加热器元件更靠近空气轴承表面。
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29.发明申请公开(公告)号：US20110102933A1
公开(公告)日：2011-05-05
申请号：US12558435
申请日：2009-09-11
CPC分类号： G11B5/6029 , G11B5/6064
摘要： A method for measuring a change of a clearance between a head and a disk. The method includes reading a preliminarily written data string for clearance measurement on a disk to obtain a first measured value corresponding to a clearance, and writing a new data string for deterioration check onto the disk and reading the data string for deterioration check to obtain a second measured value corresponding to the clearance. The method also includes determining a deterioration of the data string for clearance measurement from a difference between the first measured value and the second measured value, measuring a clearance change using the data string for clearance measurement by a normal operation if the determination is that the data string for clearance measurement has not deteriorated, and measuring a clearance change by an operation different operation if the determination is that the data string for clearance measurement has deteriorated.
摘要翻译： 一种用于测量磁头和磁盘之间的间隙变化的方法。 该方法包括在盘上读取用于间隙测量的预先写入的数据串，以获得与间隙相对应的第一测量值，并将用于劣化检查的新数据串写入盘并读取用于劣化检查的数据串，以获得第二 测量值对应于间隙。 该方法还包括从第一测量值和第二测量值之间的差异确定用于间隙测量的数据串的劣化，如果确定数据是通过正常操作，则使用用于间隙测量的数据串来测量间隙变化 用于间隙测量的琴弦没有劣化，并且如果确定用于间隙测量的数据串已经劣化，则通过操作不同的操作来测量间隙变化。
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30.发明授权Magnetic disk apparatus with heating device and magnetic head slider used therefor 失效具有加热装置的磁盘装置和用于其的磁头滑块公开(公告)号：US07729088B2
公开(公告)日：2010-06-01
申请号：US12454294
申请日：2009-05-14
CPC分类号： G11B5/6064 , G11B5/607 , G11B5/6082
摘要： Embodiments of the invention achieve a decrease in electric power consumption while ensuring high recording density and high reliability in a magnetic disk apparatus. In one embodiment, a magnetic disk apparatus comprises a rotatable magnetic disk and a magnetic head slider to be able to fly above a surface of the magnetic disk. The magnetic head slider comprises an air bearing surface, by which the magnetic head slider is caused to fly and come near to the rotating surface of the magnetic disk with a predetermined spacing therebetween, recording and reproducing elements to perform at least one of recording on and reproduction from the magnetic disk, and a heating device to adjust a distance between the recording and reproducing elements and the surface of the magnetic disk. The heating device is mounted such that heating thereof causes a part of the air bearing surface to expand and project to increase a distance between the recording and reproducing elements and the surface of the magnetic disk.
摘要翻译： 本发明的实施例在确保磁盘装置中的高记录密度和高可靠性的同时实现了电力消耗的降低。 在一个实施例中，磁盘装置包括可旋转磁盘和能够在磁盘表面上方飞行的磁头滑块。 磁头滑动器包括空气支承表面，通过该空气轴承表面使磁头滑块以预定的间隔飞行并靠近磁盘的旋转表面，记录和再现元件以执行记录和/ 从磁盘再现，以及加热装置，用于调节记录和再现元件与磁盘表面之间的距离。 加热装置安装成使得其加热使得空气轴承表面的一部分膨胀并突出以增加记录和再现元件与磁盘表面之间的距离。
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