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公开(公告)号：US07649713B2
公开(公告)日：2010-01-19
申请号：US11334009
申请日：2006-01-18
IPC分类号： G11B5/127
CPC分类号： G11B5/3133 , G11B5/4826 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A thin-film magnetic head that has an improved protrusion efficiency under the condition of not only assuring the reliability of the-heating operation, but also stabilizing the read output is provided. The head comprises: a magnetic head element for writing and/or reading data signals; a heating element for generating heat at least during operations of the magnetic head element; and a first heatsink element provided adjacent to the heating element for receiving a part of the heat generated from the heating element, the first heatsink element being a distance from the magnetic head element.
摘要翻译： 提供了在不仅确保加热操作的可靠性而且稳定读取输出的条件下具有改进的突出效率的薄膜磁头。 头部包括：用于写入和/或读取数据信号的磁头元件; 用于至少在磁头元件的操作期间产生热的加热元件; 以及与所述加热元件相邻设置的用于接收从所述加热元件产生的一部分热量的第一散热元件，所述第一散热元件距离所述磁头元件一定距离。
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公开(公告)号：US20060291098A1
公开(公告)日：2006-12-28
申请号：US11334009
申请日：2006-01-18
CPC分类号： G11B5/3133 , G11B5/4826 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A thin-film magnetic head that has an improved protrusion efficiency under the condition of not only assuring the reliability of the-heating operation, but also stabilizing the read output is provided. The head comprises: a magnetic head element for writing and/or reading data signals; a heating element for generating heat at least during operations of the magnetic head element; and a first heatsink element provided adjacent to the heating element for receiving a part of the heat generated from the heating element, the first heatsink element being a distance from the magnetic head element.
摘要翻译： 提供了在不仅确保加热操作的可靠性而且稳定读取输出的条件下具有改进的突出效率的薄膜磁头。 头部包括：用于写入和/或读取数据信号的磁头元件; 用于至少在磁头元件的操作期间产生热的加热元件; 以及与所述加热元件相邻设置的用于接收从所述加热元件产生的一部分热量的第一散热元件，所述第一散热元件距离所述磁头元件一定距离。
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3.发明授权公开(公告)号：US07612965B2
公开(公告)日：2009-11-03
申请号：US11214725
申请日：2005-08-31
申请人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
发明人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
CPC分类号： G11B5/3136 , G11B5/3106 , G11B5/314 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head with a higher protrusion efficiency is provided, which comprises: a substrate with an air bearing surface (ABS); a read head element including a lower and upper shield layers, and a write head element including a magnetic pole layer; a heating element provided in a position opposite to the ABS in relation to the read and write head elements; and a heatsink element including a heatsink layer provided adjacent to an end opposite to an end in the ABS side of at least one layer of the lower and upper shield layers and the magnetic pole layer, the heatsink element having a shape that a pattern width in the track-width direction of an end portion in the ABS side is larger than a pattern width in the track-width direction of an end portion opposite to the end portion in the ABS side.
摘要翻译： 提供了具有更高突出效率的薄膜磁头，其包括：具有空气轴承表面（ABS）的基板; 包括下屏蔽层和上屏蔽层的读头元件和包括磁极层的写头元件; 相对于读写头元件设置在与ABS相反的位置的加热元件; 以及散热元件，其包括与所述下屏蔽层和上屏蔽层的至少一层的ABS侧中的端部相对的端部邻近设置的散热层，所述散热元件具有形状为 ABS侧的端部的轨道宽度方向大于与ABS侧的端部相反的端部的轨道宽度方向的图案宽度。
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公开(公告)号：US20060077591A1
公开(公告)日：2006-04-13
申请号：US11214725
申请日：2005-08-31
申请人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
发明人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
IPC分类号： G11B5/41
CPC分类号： G11B5/3136 , G11B5/3106 , G11B5/314 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head with a higher protrusion efficiency is provided, which comprises: a substrate with an air bearing surface (ABS); a read head element including a lower and upper shield layers, and a write head element including a magnetic pole layer; a heating element provided in a position opposite to the ABS in relation to the read and write head elements; and a heatsink element including a heatsink layer provided adjacent to an end opposite to an end in the ABS side of at least one layer of the lower and upper shield layers and the magnetic pole layer, the heatsink element having a shape that a pattern width in the track-width direction of an end portion in the ABS side is larger than a pattern width in the track-width direction of an end portion opposite to the end portion in the ABS side.
摘要翻译： 提供了具有更高突出效率的薄膜磁头，其包括：具有空气轴承表面（ABS）的基板; 包括下屏蔽层和上屏蔽层的读头元件和包括磁极层的写头元件; 相对于读写头元件设置在与ABS相反的位置的加热元件; 以及散热元件，其包括与所述下屏蔽层和上屏蔽层的至少一层的ABS侧中的端部相对的端部邻近设置的散热层，所述散热元件具有形状为 ABS侧的端部的轨道宽度方向大于与ABS侧的端部相反的端部的轨道宽度方向的图案宽度。
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5.发明申请公开(公告)号：US20080068749A1
公开(公告)日：2008-03-20
申请号：US11757114
申请日：2007-06-01
IPC分类号： G11B5/127
CPC分类号： G11B5/3123 , G11B5/17 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/6064 , G11B2005/0002
摘要： A thin-film magnetic head that the TPTP phenomenon due to the environment temperature is surely suppressed without providing a new particular component is provided. The thin-film magnetic head is provided, which includes, an electromagnetic coil element for writing data with a coil layer which generates magnetic field by current flowed in its own and a coil-insulating layer which surrounds the coil layer; and an overcoat layer formed in such a way as to cover the electromagnetic coil element, a width of a track-width direction of the coil-insulating layer being larger than a width that is a minimum width to need to insulate the whole coil layer, and being at least 46 μm, a length of a direction perpendicular to the track-width direction of the coil-insulating layer being larger than a length that is a minimum length to need to insulate the whole coil layer, and being at least 75 μm, a heat expansion coefficient of the coil-insulating layer being larger than or equal to 30×10−6/K, and a Young's modulus of the coil-insulating layer being larger than or equal to 1 GPa and smaller than or equal to 4 GPa.
摘要翻译： 提供了由于环境温度导致的TPTP现象被确定地抑制而不提供新的特定部件的薄膜磁头。 提供了一种薄膜磁头，其包括用于通过自身流过的电流产生磁场的线圈层和围绕线圈层的线圈绝缘层来写入数据的电磁线圈元件; 以覆盖电磁线圈元件的方式形成的覆盖层，线圈绝缘层的轨道宽度方向的宽度大于需要使整个线圈层绝缘的最小宽度的宽度， 并且至少为46μm，与线圈绝缘层的轨道宽度方向垂直的方向的长度大于需要使整个线圈层绝缘的最小长度的长度，并且至少为75μm ，线圈绝缘层的热膨胀系数大于或等于30×10 -6 / K，线圈绝缘层的杨氏模量大于或等于1GPa或更小 大于或等于4 GPa。
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6.发明授权公开(公告)号：US07903370B2
公开(公告)日：2011-03-08
申请号：US11757114
申请日：2007-06-01
IPC分类号： G11B5/17
CPC分类号： G11B5/3123 , G11B5/17 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/6064 , G11B2005/0002
摘要： A thin-film magnetic head which suppresses the TPTP phenomenon due to the environment temperature is provided. The thin-film magnetic head includes, an electromagnetic coil element having a coil layer and coil-insulating layer, and an overcoat layer. A width of the coil-insulating layer in a track-width direction is larger than a width that is needed to insulate the whole coil layer, and is at least 46 μm, and a length of the coil-insulating layer in a direction perpendicular to the track-width direction is larger than a length that is needed to insulate the whole coil layer, and is at least 75 μm. In addition, a heat expansion coefficient of the coil-insulating layer is larger than or equal to 30×10−6/K, and a Young's modulus of the coil-insulating layer is larger than or equal to 1 GPa and smaller than or equal to 4 GPa.
摘要翻译： 提供了抑制由于环境温度引起的TPTP现象的薄膜磁头。 薄膜磁头包括具有线圈层和线圈绝缘层的电磁线圈元件和外涂层。 线圈绝缘层在轨道宽度方向上的宽度大于使整个线圈层绝缘所需的宽度，并且至少为46μm，线圈绝缘层的垂直方向的长度 轨道宽度方向大于绝缘整个线圈层所需的长度，并且至少为75μm。 此外，线圈绝缘层的热膨胀系数大于或等于30×10-6 / K，线圈绝缘层的杨氏模量大于或等于1GPa且小于或等于 至4 GPa。
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7.发明授权公开(公告)号：US07724471B2
公开(公告)日：2010-05-25
申请号：US11282651
申请日：2005-11-21
IPC分类号： G11B21/21
CPC分类号： G11B5/314 , G11B5/3136 , G11B5/4826 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing dMS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.
摘要翻译： 提供了由于由加热装置产生的热量而使头端表面的突起变得足够大以将磁距dMS设定为较小值的薄膜磁头。 头部包括：具有形成有至少一个凹部的元件形成表面的基板和ABS; 至少一个磁头元件形成在元件形成表面之上或之上; 至少一个热膨胀层嵌入在所述至少一个凹部中; 以及至少一个位于至少一个热膨胀层上方的加热装置。
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8.发明申请公开(公告)号：US20100123966A1
公开(公告)日：2010-05-20
申请号：US12274470
申请日：2008-11-20
申请人： Yosuke ANTOKU , Takeo Kagami , Katsuki Kurihara , Taro Oike , Masashi Sano
发明人： Yosuke ANTOKU , Takeo Kagami , Katsuki Kurihara , Taro Oike , Masashi Sano
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/6064 , G11B5/607 , G11B5/6076 , G11B2005/0005
摘要： The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.
摘要翻译： 本发明涉及能够有效地检测热凹凸的磁头，磁头组件和磁记录/重放装置。 根据本发明的磁头包括发热电阻器，记录线圈和电阻元件。 发热电阻适用于在供电时产生热量，使得发热导致空气轴承表面的至少一部分热膨胀和突出。 记录线圈适于产生记录磁场，并且电阻元件设置为比记录线圈更靠近空气轴承表面并与加热器串联或并联连接。 因此，电阻元件可以与用于供电的加热器共用公共布线，这消除了布线的浪费并实现了小型化。
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9.发明授权公开(公告)号：US08144427B2
公开(公告)日：2012-03-27
申请号：US12274470
申请日：2008-11-20
申请人： Yosuke Antoku , Takeo Kagami , Katsuki Kurihara , Taro Oike , Masashi Sano
发明人： Yosuke Antoku , Takeo Kagami , Katsuki Kurihara , Taro Oike , Masashi Sano
CPC分类号： G11B5/314 , G11B5/6064 , G11B5/607 , G11B5/6076 , G11B2005/0005
摘要： The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.
摘要翻译： 本发明涉及能够有效地检测热凹凸的磁头，磁头组件和磁记录/重放装置。 根据本发明的磁头包括发热电阻器，记录线圈和电阻元件。 发热电阻适用于在供电时产生热量，使得发热导致空气轴承表面的至少一部分热膨胀和突出。 记录线圈适于产生记录磁场，并且电阻元件设置为比记录线圈更靠近空气轴承表面并与加热器串联或并联连接。 因此，电阻元件可以与用于供电的加热器共用公共布线，这消除了布线的浪费并实现了小型化。
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10.发明申请公开(公告)号：US20060126224A1
公开(公告)日：2006-06-15
申请号：US11282651
申请日：2005-11-21
申请人： Takamitsu Sakamoto , Taro Oike , Katsuki Kurihara , Eric Leung
发明人： Takamitsu Sakamoto , Taro Oike , Katsuki Kurihara , Eric Leung
IPC分类号： G11B5/41
CPC分类号： G11B5/314 , G11B5/3136 , G11B5/4826 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing dMS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.
摘要翻译： 提供了由于由加热装置产生的热量而使头端表面的突出部变得足够大以将磁性间隔d MS MS 有效地设定为较小值的薄膜磁头。 头部包括：具有形成有至少一个凹部的元件形成表面的基板和ABS; 至少一个磁头元件形成在元件形成表面之上或之上; 至少一个热膨胀层嵌入在所述至少一个凹部中; 以及至少一个位于至少一个热膨胀层上方的加热装置。
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