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1. 发明授权

US07864474B2 Disk drive and control method thereof 有权
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US07864474B2
公开(公告)日：2011-01-04
申请号：US11789866
申请日：2007-04-25
申请人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
发明人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
IPC分类号： G11B5/02
CPC分类号： G11B5/3133 , G11B5/6064 , G11B5/607 , G11B19/04
摘要： Embodiments in accordance with the present invention reduce the number of errors caused by the aged deterioration of a heater for adjusting the clearance between a head and a disk. According to one embodiment, a thermal fly height control (TFC) controller executes the measurement of a resistance value of a heater in a predetermined timing. The TFC controller judges whether or not the measured resistance value falls within a predetermined reference range. If the measured resistance value falls within the reference range, the processing ends without performing any other processing. If the measured resistance value goes out of the reference range, the TFC controller executes error handling processing in response to a resistance failure. As one of the error handling processing, the TFC controller notifies the host that the abnormality (resistance failure) has been detected in the resistance value of the TFC heater.
摘要翻译：根据本发明的实施例减少了用于调节头部和盘之间的间隙的加热器的老化劣化引起的误差的数量。根据一个实施例，热飞跃高度控制（TFC）控制器在预定定时执行加热器的电阻值的测量。 TFC控制器判断所测量的电阻值是否在预定的参考范围内。如果测量的电阻值落在参考范围内，则处理结束而不执行任何其它处理。如果测量的电阻值超出参考范围，则TFC控制器响应于电阻故障执行错误处理处理。作为错误处理处理之一，TFC控制器通知主机在TFC加热器的电阻值中检测到异常（电阻故障）。

2. 发明申请

US20080247079A1 Disk drive and control method thereof 有权
标题翻译：磁盘驱动器及其控制方法
公开(公告)号：US20080247079A1
公开(公告)日：2008-10-09
申请号：US11789866
申请日：2007-04-25
申请人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
发明人： Noriaki Satoh , Toyomi Ohsawa , Yumi Nagano , Kouji Miyake , Yoshiaki Uji , Masayuki Kurita
IPC分类号： G11B21/02
CPC分类号： G11B5/3133 , G11B5/6064 , G11B5/607 , G11B19/04
摘要： Embodiments in accordance with the present invention reduce the number of errors caused by the aged deterioration of a heater for adjusting the clearance between a head and a disk. According to one embodiment, a thermal fly height control (TFC) controller executes the measurement of a resistance value of a heater in a predetermined timing. The TFC controller judges whether or not the measured resistance value falls within a predetermined reference range. If the measured resistance value falls within the reference range, the processing ends without performing any other processing. If the measured resistance value goes out of the reference range, the TFC controller executes error handling processing in response to a resistance failure. As one of the error handling processing, the TFC controller notifies the host that the abnormality (resistance failure) has been detected in the resistance value of the TFC heater.
摘要翻译：根据本发明的实施例减少了用于调节头部和盘之间的间隙的加热器的老化劣化引起的误差的数量。根据一个实施例，热飞跃高度控制（TFC）控制器在预定定时执行加热器的电阻值的测量。 TFC控制器判断所测量的电阻值是否在预定的参考范围内。如果测量的电阻值落在参考范围内，则处理结束而不执行任何其它处理。如果测量的电阻值超出参考范围，则TFC控制器响应于电阻故障执行错误处理处理。作为错误处理处理之一，TFC控制器通知主机在TFC加热器的电阻值中检测到异常（电阻故障）。

3. 发明申请

US20080192379A1 Manufacturing method for magnetic disk drive 审中-公开
标题翻译：磁盘驱动器的制造方法
公开(公告)号：US20080192379A1
公开(公告)日：2008-08-14
申请号：US12011284
申请日：2008-01-24
申请人： Masayuki Kurita , Hideaki Tanaka , Noriaki Satoh , Toyomi Ohsawa , Toshiya Shiramatsu , Atsushi Yatagai , Satoshi Ohki , Hiroshi Ide , Hidekazu Kohira , Takehiko Hamaguchi
发明人： Masayuki Kurita , Hideaki Tanaka , Noriaki Satoh , Toyomi Ohsawa , Toshiya Shiramatsu , Atsushi Yatagai , Satoshi Ohki , Hiroshi Ide , Hidekazu Kohira , Takehiko Hamaguchi
IPC分类号： G11B5/48 , G11B5/56 , G11B5/60 , G11B21/21 , G01R31/01
CPC分类号： G11B5/455 , G11B5/3133 , G11B5/6029 , G11B5/607 , G11B5/6076 , Y10T29/49004
摘要： Embodiments of the present invention provide a process that monitors a magnetic playback signal while gradually increasing an electricity supply amount for a heater to thereby determine contact between a magnetic head slider and a magnetic disk medium. According to one embodiment, after components for configuring a magnetic recording/playback portion are assembled into a housing, magnetic information is played back on a specific track of a magnetic disk medium by using a playback element while gradually increasing an electricity supply amount for a heater of a magnetic head slider. An amplitude of a playback signal is measured at a plurality of portions along a circumferential direction of the track. Contact between the magnetic head slider and the magnetic disk medium is detected in accordance with an increase in variation in the measured amplitude. Then, a value obtained by subtracting an predetermined value of an electricity amount from an electricity amount in the event of detection of the contact is stored (set) as an appropriate electricity amount for the magnetic head slider into a storage portion.
摘要翻译：本发明的实施例提供了一种监视磁回放信号的过程，同时逐渐增加用于加热器的电力供应量，从而确定磁头滑块和磁盘介质之间的接触。根据一个实施例，在用于配置磁记录/重放部分的组件被组装到外壳中之后，通过使用回放元件在磁盘介质的特定轨道上回放磁信息，同时逐渐增加加热器的供电量的磁头滑块。沿着轨道的圆周方向的多个部分测量重放信号的幅度。根据测量幅度的变化的增加来检测磁头滑块和磁盘介质之间的接触。然后，通过从检测到接触的电量的电量中减去电量的预定值而获得的值作为用于磁头滑块的适当电量被存储（设置）到存储部分中。

4. 发明申请

US20080273262A1 Magnetic disk drive, preamplifier for magnetic disk drive, flexible printed cable assembly for magnetic disk drive 失效
标题翻译：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：US20080273262A1
公开(公告)日：2008-11-06
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
IPC分类号： G11B33/14
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。

5. 发明授权

US07630160B2 Magnetic disk drive, preamplifier for magnetic disk drive, flexible printed cable assembly for magnetic disk drive 失效
标题翻译：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
IPC分类号： G11B15/18 , G11B33/14
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。

6. 发明授权

US08767338B2 Magnetic head slider and magnetic disk drive 有权
标题翻译：磁头滑块和磁盘驱动器
公开(公告)号：US08767338B2
公开(公告)日：2014-07-01
申请号：US12973301
申请日：2010-12-20
申请人： Toshiya Shiramatsu , Masayuki Kurita , Hidekazu Kohira
发明人： Toshiya Shiramatsu , Masayuki Kurita , Hidekazu Kohira
IPC分类号： G11B21/02 , G11B5/60
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。

7. 发明申请

US20110102933A1 DISK DRIVE AND METHOD FOR MEASURING CLEARANCE CHANGE IN THE DISK DRIVE 有权
标题翻译：磁盘驱动器和用于测量磁盘驱动器中的间隙变化的方法
公开(公告)号：US20110102933A1
公开(公告)日：2011-05-05
申请号：US12558435
申请日：2009-09-11
申请人： Masayuki Kurita , Kenji Kuroki , Kenichi Kuramoto , Yoshihiko Maeda
发明人： Masayuki Kurita , Kenji Kuroki , Kenichi Kuramoto , Yoshihiko Maeda
IPC分类号： G11B27/36 , G11B21/02
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。

8. 发明授权

US07729088B2 Magnetic disk apparatus with heating device and magnetic head slider used therefor 失效
标题翻译：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
申请人： Masayuki Kurita , Toshiya Shiramatsu , Hidekazu Kohira , Mikio Tokuyama
发明人： Masayuki Kurita , Toshiya Shiramatsu , Hidekazu Kohira , Mikio Tokuyama
IPC分类号： G11B5/60 , G11B21/21
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。

9. 发明授权

US07619857B2 Silicon-made magnetic head slider and method of producing the same 失效
标题翻译：硅制磁头滑块及其制造方法
公开(公告)号：US07619857B2
公开(公告)日：2009-11-17
申请号：US11373035
申请日：2006-03-10
申请人： Masayuki Kurita , Toshiya Shiramatsu , Kimitoshi Etoh , Takanori Yamazaki
发明人： Masayuki Kurita , Toshiya Shiramatsu , Kimitoshi Etoh , Takanori Yamazaki
IPC分类号： G11B5/60
CPC分类号： G11B5/6005 , G11B5/6082
摘要： Embodiments of the invention provide a magnetic disk device which lowers the cost, maintains reliability by compensating the thermal dent or protuberance caused by a change in the environmental temperature, makes it possible to increase the recording density by decreasing the floating amount of the slider, to increase the capacity of the device or to decrease the size thereof. In one embodiment, a magnetic disk device comprises a magnetic disk, a magnetic head slider, and a drive unit for moving the magnetic head slider, wherein an air stream is generated between the magnetic disk that rotates and the magnetic head slider to effect the recording or the reproduction in a state where the magnetic head slider is floating. The magnetic head slider includes a slider substrate portion and a thin-film head portion that has recording and reproducing elements, a metal film, and an insulating film formed on the slider substrate portion and constituting a slider-floating plane along with the slider substrate portion. The slider substrate portion includes a silicon substrate with a recessed portion, and a metal member buried in the recessed portion.
摘要翻译：本发明的实施例提供一种降低成本的磁盘装置，通过补偿由环境温度的变化引起的热凹痕或突起而保持可靠性，可以通过将滑块的浮动量减小到增加记录密度，增加装置的容量或减小其尺寸。在一个实施例中，磁盘装置包括磁盘，磁头滑块和用于移动磁头滑块的驱动单元，其中在旋转的磁盘与磁头滑块之间产生空气流以进行记录或在磁头滑块浮动的状态下的再现。磁头滑动器包括滑动器基板部分和具有记录和再现元件，金属膜和绝缘膜的薄膜头部分，该薄膜头部分形成在滑动器基板部分上并与滑动器基板部分一起构成滑块浮动平面。滑动器基板部分包括具有凹陷部分的硅基板和埋在凹部中的金属部件。

10. 发明授权

US07508631B2 Silicon-made magnetic head slider 失效
标题翻译：硅制磁头滑块
公开(公告)号：US07508631B2
公开(公告)日：2009-03-24
申请号：US11241543
申请日：2005-09-30
申请人： Kimitoshi Etoh , Masayuki Kurita , Tokuyama Mikio , Shiramatsu Toshiya
发明人： Kimitoshi Etoh , Masayuki Kurita , Tokuyama Mikio , Shiramatsu Toshiya
IPC分类号： G11B15/64
CPC分类号： G11B5/3136 , G11B5/10 , G11B5/3106 , G11B5/3133 , G11B5/6082
摘要： In a magnetic disk device, cost reduction is designed by improving productivity, and increase in recording density and increase in capacity of the device or size reduction are designed with reliability being ensured. In one embodiment, a magnetic disk device has a magnetic disk arranged rotatably, a magnetic head slider arranged in a manner of facing a surface of the magnetic disk, and a driving device for moving the magnetic head slider in a radial direction of the surface of the magnetic disk. The magnetic head slider has a silicon slider-substrate-portion and a thin-film head portion which is formed on the slider substrate portion using a thin-film process and forms an air-bearing surface along with the slider substrate portion. The thin-film head portion has recording/reproduction elements facing the surface of the magnetic disk, and a ceramic insulation film has alumina and silicon-based ceramics in order to have a coefficient of linear expansion approximately equal to that of the silicon slider-substrate-portion.
摘要翻译：在磁盘装置中，通过提高生产率来设计成本降低，并且设计可靠性得以确保设备的增加和记录容量的增加或容量的减小。在一个实施例中，磁盘装置具有可旋转地布置的磁盘，以与磁盘表面相对的方式布置的磁头滑块，以及驱动装置，用于沿着磁盘的表面的径向方向移动磁头滑块磁盘。磁头滑块具有硅滑块 - 基板部分和薄膜磁头部分，该薄片磁头部分使用薄膜工艺形成在滑块基板部分上，并与滑块基板部分一起形成空气轴承表面。薄膜头部分具有面向磁盘表面的记录/再现元件，并且陶瓷绝缘膜具有氧化铝和硅基陶瓷，以便线性膨胀系数近似等于硅滑块 - 衬底的线膨胀系数 -一部分。

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