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公开(公告)号：US07957096B2
公开(公告)日：2011-06-07
申请号：US12130209
申请日：2008-05-30
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3133
摘要： In a perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer which are laminated with a magnetic gap layer interposed therebetween, a nonmagnetic throat height determining layer and a return yoke reinforcement layer made of a magnetic material having a saturated magnetic flux density higher than that of the return yoke layer are provided on the magnetic gap layer. The nonmagnetic throat height determining layer has a front end face parallel to the medium-opposing surface at a position retracted by a desirable throat height from the medium-opposing surface. The return yoke reinforcement layer is formed directly under the return yoke layer so as to extend at least from the front end face of the nonmagnetic throat height determining layer to the upper face thereof, and is exposed at the medium-opposing surface between the magnetic gap layer and return yoke layer.
摘要翻译： 在包括主要磁极层和返回磁轭层的垂直磁记录头中，其间夹有磁隙层，由非磁性喉部高度确定层和由具有饱和磁通量的磁性材料制成的返回磁轭加强层 在磁隙层上设置高于返回磁轭层的密度。 非磁性喉部高度确定层在与介质相对表面缩回期望的喉部高度的位置处具有平行于介质相对表面的前端面。 返回轭加强层直接形成在返回轭层的下方，至少从非磁性喉部高度确定层的前端面延伸到其上表面，并且在磁隙之间的介质相对表面处露出 层和返回轭层。
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公开(公告)号：US08045293B2
公开(公告)日：2011-10-25
申请号：US11851692
申请日：2007-09-07
CPC分类号： G11B5/3133 , G11B5/3103 , G11B5/3136
摘要： A thin film magnetic head includes a recording and playback element, a lead conductor layer for feeding a power to the recording and playback element, an electrically conductive bump for conductively connecting the lead conductor layer to an electrode pad for external connection, and an insulating protective layer filling between the recording and playback element and the electrically conductive bump. A thermal deformation-preventing layer composed of a material having a thermal expansion coefficient smaller than that of the insulating protective layer is disposed in the insulating protective layer in such a way as to locate between a medium-facing surface and the electrically conductive bump without being exposed at the medium-facing surface. In the resulting thin film magnetic head, protrusion of the recording and playback element toward the recording medium side can be prevented without changing the configuration of the recording and playback element nor the forming material.
摘要翻译： 薄膜磁头包括记录和重放元件，用于向记录和回放元件供电的引线导体层，用于将引线导体层导电连接到用于外部连接的电极焊盘的导电凸块，以及绝缘保护 记录和再现元件与导电凸块之间的层填充。 由热膨胀系数小于绝缘保护层的材料构成的热变形防止层设置在绝缘保护层中，以便定位在介质表面和导电凸块之间，而不会 暴露在面向中间的表面。 在所得到的薄膜磁头中，可以防止记录和再现元件向记录介质侧的突出，而不改变记录和再现元件的构造以及形成材料。
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公开(公告)号：US08045291B2
公开(公告)日：2011-10-25
申请号：US12038343
申请日：2008-02-27
申请人： Kiyoshi Kobayashi , Tomoo Otsuka
发明人： Kiyoshi Kobayashi , Tomoo Otsuka
IPC分类号： G11B5/31
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163
摘要： A perpendicular magnetic recording head includes a main magnetic pole layer exposed to an opposing surface opposite a recording medium, applying a perpendicular recording magnetic field to the recording medium; a return yoke layer disposed in the opposing surface opposite the recording medium above or below the main magnetic pole layer, the return yoke layer receiving the recording magnetic field returning thereto after passing through the recording medium; and a planarized nonmagnetic layer filling the surroundings of the return yoke layer to planarized the return yoke layer. Inclined or curved surfaces are formed at both sides in a track width direction of the return yoke layer, the inclined or curved surfaces gradually broadening the dimension of the return yoke layer in the track width direction as the inclined or curved surfaces extend from front end surfaces thereof exposed to the opposing surface opposite the recording medium in the height direction. A cohesive layer is disposed between the return yoke layer and the planarized nonmagnetic layer to increase the cohesive properties between the return yoke layer and the planarized nonmagnetic layer compared with the case in which the return yoke layer is directly connected to the planarized nonmagnetic layer.
摘要翻译： 垂直磁记录头包括暴露于与记录介质相对的相对表面的主磁极层，向记录介质施加垂直记录磁场; 返回磁轭层，设置在与主磁极层上方或下方的与记录介质相对的相对表面中，返回磁轭层在通过记录介质之后接收返回到其的记录磁场; 以及填充返回磁轭层的周围的平坦化非磁性层以使返回磁轭层平坦化。 倾斜或弯曲表面形成在返回轭层的轨道宽度方向上的两侧，倾斜或弯曲表面随着倾斜或弯曲表面从前端表面延伸而逐渐变宽了轨道宽度方向上的返回轭层的尺寸 其在高度方向上暴露于与记录介质相对的相对表面。 与返回磁轭层直接连接到平坦化非磁性层的情况相比，在返回磁轭层和平坦化非磁性层之间设置内聚层以增加返回磁轭层和平坦化非磁性层之间的内聚性。
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4.发明授权Thin-film magnetic head that locally projects an element part toward a recording medium by thermal expansion 有权通过热膨胀将元件部分局部投射到记录介质的薄膜磁头公开(公告)号：US08072710B2
公开(公告)日：2011-12-06
申请号：US12105057
申请日：2008-04-17
IPC分类号： G11B5/33
CPC分类号： G11B5/3133 , G11B5/3116 , G11B5/6064
摘要： A thin-film magnetic head comprises a reproducing element formed on an undercoat film on a head substrate surface, a recording element formed on the upper side of the reproducing element, and a heater formed on the upper or lower side of the reproducing element, the heater generating heat upon energization so as to project at least the reproducing element by thermal expansion toward a recording medium. A shield layer is formed between the reproducing element and the heater by a plurality of layers including at least first and second shield layers. In the first and second shield layers, the second upper shield layer located closer to the heater is formed by a material having a coefficient of thermal expansion smaller than that of the first shield layer located closer to the reproducing element.
摘要翻译： 薄膜磁头包括形成在头基板表面上的底涂膜上的再现元件，形成在再现元件的上侧的记录元件和形成在再现元件的上侧或下侧的加热器， 加热器在通电时产生热量，以便通过热膨胀将至少再现元件投射到记录介质。 通过包括至少第一和第二屏蔽层的多个层，在再现元件和加热器之间形成屏蔽层。 在第一和第二屏蔽层中，位于更靠近加热器的第二上屏蔽层由热膨胀系数小于靠近再生元件的第一屏蔽层的材料形成。
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公开(公告)号：US20080068762A1
公开(公告)日：2008-03-20
申请号：US11851692
申请日：2007-09-07
IPC分类号： G11B5/33
CPC分类号： G11B5/3133 , G11B5/3103 , G11B5/3136
摘要： A thin film magnetic head includes a recording and playback element, a lead conductor layer for feeding a power to the recording and playback element, an electrically conductive bump for conductively connecting the lead conductor layer to an electrode pad for external connection, and an insulating protective layer filling between the recording and playback element and the electrically conductive bump. A thermal deformation-preventing layer composed of a material having a thermal expansion coefficient smaller than that of the insulating protective layer is disposed in the insulating protective layer in such a way as to locate between a medium-facing surface and the electrically conductive bump without being exposed at the medium-facing surface. In the resulting thin film magnetic head, protrusion of the recording and playback element toward the recording medium side can be prevented without changing the configuration of the recording and playback element nor the forming material.
摘要翻译： 薄膜磁头包括记录和重放元件，用于向记录和回放元件供电的引线导体层，用于将引线导体层导电连接到用于外部连接的电极焊盘的导电凸块，以及绝缘保护 记录和再现元件与导电凸块之间的层填充。 由热膨胀系数小于绝缘保护层的材料构成的热变形防止层设置在绝缘保护层中，以便定位在介质表面和导电凸块之间，而不会 暴露在面向中间的表面。 在所得到的薄膜磁头中，可以防止记录和再现元件向记录介质侧的突出，而不改变记录和再现元件的构造以及形成材料。
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公开(公告)号：US20070274004A1
公开(公告)日：2007-11-29
申请号：US11802019
申请日：2007-05-18
申请人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka
发明人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka
CPC分类号： G11B5/314 , G11B5/1278 , G11B5/3136 , G11B5/3967 , G11B5/6064
摘要： A thin film magnetic head is provided, in which the amount of protrusion in the periphery of an element portion can be reduced or a local temperature increase of electrode leads of a heating element can be prevented. The thin film magnetic head includes a playback element disposed between lower and upper shield layers, a recording element laminated on the upper shield layer, a heating element which is disposed below a coil layer and which generates heat to allow the playback element to protrude toward the recording medium side through thermal expansion, and a pair of electrode leads including overlapping regions, which are in contact with rear ends of the heating element and which overlap with the upper shield layer, and heat dissipation regions. Furthermore, connection wiring portions of the pair of electrode leads are disposed in a region sandwiched between the upper shield layer and a magnetic layer.
摘要翻译： 提供一种薄膜磁头，其中可以减少元件部分的周边中的突出量，或者可以防止加热元件的电极引线的局部温度升高。 薄膜磁头包括设置在下屏蔽层和上屏蔽层之间的重放元件，层叠在上屏蔽层上的记录元件，设置在线圈层下方并产生热量以允许播放元件朝向 记录介质侧通过热膨胀，并且一对电极引线包括与加热元件的后端接触并且与上屏蔽层重叠的重叠区域和散热区域。 此外，一对电极引线的连接布线部分设置在夹在上屏蔽层和磁性层之间的区域中。
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公开(公告)号：US08159782B2
公开(公告)日：2012-04-17
申请号：US13020881
申请日：2011-02-04
申请人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka
发明人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka
CPC分类号： G11B5/314 , G11B5/1278 , G11B5/3136 , G11B5/3967 , G11B5/6064
摘要： A thin film magnetic head is provided, in which the amount of protrusion in the periphery of an element portion can be reduced or a local temperature increase of electrode leads of a heating element can be prevented. The thin film magnetic head includes a playback element disposed between lower and upper shield layers, a recording element laminated on the upper shield layer, a heating element which is disposed below a coil layer and which generates heat to allow the playback element to protrude toward the recording medium side through thermal expansion, and a pair of electrode leads including overlapping regions, which are in contact with rear ends of the heating element and which overlap with the upper shield layer, and heat dissipation regions. Furthermore, connection wiring portions of the pair of electrode leads are disposed in a region sandwiched between the upper shield layer and a magnetic layer.
摘要翻译： 提供一种薄膜磁头，其中可以减少元件部分的周边中的突出量，或者可以防止加热元件的电极引线的局部温度升高。 薄膜磁头包括设置在下屏蔽层和上屏蔽层之间的重放元件，层叠在上屏蔽层上的记录元件，设置在线圈层下方并产生热量以允许播放元件朝向 记录介质侧通过热膨胀，并且一对电极引线包括与加热元件的后端接触并且与上屏蔽层重叠的重叠区域和散热区域。 此外，一对电极引线的连接布线部分设置在夹在上屏蔽层和磁性层之间的区域中。
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公开(公告)号：US07903373B2
公开(公告)日：2011-03-08
申请号：US11802019
申请日：2007-05-18
申请人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka
发明人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka
CPC分类号： G11B5/314 , G11B5/1278 , G11B5/3136 , G11B5/3967 , G11B5/6064
摘要： A thin film magnetic head is provided, in which the amount of protrusion in the periphery of an element portion can be reduced or a local temperature increase of electrode leads of a heating element can be prevented. The thin film magnetic head includes a playback element disposed between lower and upper shield layers, a recording element laminated on the upper shield layer, a heating element which is disposed below a coil layer and which generates heat to allow the playback element to protrude toward the recording medium side through thermal expansion, and a pair of electrode leads including overlapping regions, which are in contact with rear ends of the heating element and which overlap with the upper shield layer, and heat dissipation regions. Furthermore, connection wiring portions of the pair of electrode leads are disposed in a region sandwiched between the upper shield layer and a magnetic layer.
摘要翻译： 提供一种薄膜磁头，其中可以减少元件部分的周边中的突出量，或者可以防止加热元件的电极引线的局部温度升高。 薄膜磁头包括设置在下屏蔽层和上屏蔽层之间的重放元件，层叠在上屏蔽层上的记录元件，设置在线圈层下方并产生热量以允许播放元件朝向 记录介质侧通过热膨胀，并且一对电极引线包括与加热元件的后端接触并且与上屏蔽层重叠的重叠区域和散热区域。 此外，一对电极引线的连接布线部分设置在夹在上屏蔽层和磁性层之间的区域中。
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公开(公告)号：US20080239568A1
公开(公告)日：2008-10-02
申请号：US12039538
申请日：2008-02-28
申请人： Akira Miyatake , Kiyoshi Kobayashi
发明人： Akira Miyatake , Kiyoshi Kobayashi
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163
摘要： A perpendicular magnetic recording head includes a main magnetic pole layer and a return yoke layer laminated on the main magnetic pole layer with a magnetic gap layer disposed in an opposing surface opposite a recording medium. Further included is a resist layer having a front end surface at a position retreated from the opposing surface opposite the recording medium to a deeper side in a height direction. The resist layer defines a throat height of the return yoke layer at the front end surface position. A Ti film is formed directly below the resist layer, forming at least a portion of the magnetic gap layer. The Ti film is a non-light transmitting film through which light cannot pass.
摘要翻译： 垂直磁记录头包括主磁极层和层叠在主磁极层上的返回磁轭层，其中磁隙层设置在与记录介质相对的相对表面中。 进一步包括抗蚀剂层，其具有在从与记录介质相对的相对表面退回到在高度方向上更深的一侧的位置处的前端表面。 抗蚀剂层在前端表面位置限定返回轭层的喉部高度。 在抗蚀剂层的正下方形成Ti膜，形成至少一部分磁隙层。 Ti膜是光不能通过的非透光膜。
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公开(公告)号：US08538646B2
公开(公告)日：2013-09-17
申请号：US12128401
申请日：2008-05-28
CPC分类号： F16H61/061 , F16H61/067 , F16H61/686 , F16H63/502 , F16H2061/0087
摘要： A control device for a vehicular automatic transmission is provided which can preferably execute backpressure control of accumulators and torque-up control so as to minimize the occurrence of interference between learning on these controls during a gearshift operation. With the control device for the vehicular automatic transmission including the accumulators (104, 106 and 108) operative to control a hydraulic pressure supplied to second and third clutches (C2 and C3) and a third brake (B3), the backpressure control is executed for controlling a backpressure of the accumulators (104, 106 and 108) during the gearshift operation while the torque-up control is executed for raising torque output from an engine (12). Completion of learning on the backpressure control is determined when no completion of learning on the backpressure control is determined, learning on the backpressure control is executed with no execution of the torque-up control. Thus, no interference occur between learning on the backpressure control and the torque-up control.
摘要翻译： 提供了一种用于车辆自动变速器的控制装置，其可以优选地执行蓄能器的背压控制和扭矩控制，以便在变速操作期间最小化在这些控制上学习之间的干扰的发生。 利用包括可控制供给第二和第三离合器（C2和C3）和第三制动器（B3）的液压的蓄能器（104,106和108）的用于车辆自动变速器的控制装置，执行背压控制 在变速操作期间控制蓄能器（104,106和108）的背压，同时执行用于提高从发动机（12）输出的转矩的转矩提升控制。 当没有确定背压控制上的学习完成时，确定背压控制上的学习完成，而不执行加强控制则执行背压控制的学习。 因此，在背压控制上的学习和加大力矩控制之间不会发生干扰。
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