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1. 发明申请

US20080019042A1 Perpendicular Magnetic Recording Head and Perpendicular Magnetic Recording/Reproducing Head 有权
标题翻译：垂直磁记录头和垂直磁记录/再现头
公开(公告)号：US20080019042A1
公开(公告)日：2008-01-24
申请号：US11780600
申请日：2007-07-20
申请人： Yusuke TOMA , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita , Toshinori Watanabe
发明人： Yusuke TOMA , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita , Toshinori Watanabe
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3123 , G11B5/3136 , G11B5/3912 , G11B5/3967
摘要： A perpendicular magnetic recording head includes a first magnetic layer having a main magnetic pole exposed at a medium-facing surface that faces a recording medium; a second magnetic layer that faces the first magnetic layer with a nonmagnetic layer interposed therebetween; and a coil layer for applying a recording magnetic field to the first magnetic layer. The second magnetic layer includes a relatively thick edge portion, whereby the edge-write magnetic field is reduced and the external magnetic field resistance is increased.
摘要翻译：垂直磁记录头包括：第一磁性层，其具有在面向记录介质的面向中间的表面处暴露的主磁极; 面向第一磁性层的第二磁性层，介于其间的非磁性层; 以及用于向第一磁性层施加记录磁场的线圈层。第二磁性层包括相对较厚的边缘部分，由此边缘写入磁场减小并且外部磁场电阻增加。

2. 发明授权

US07903371B2 Perpendicular magnetic recording head and perpendicular magnetic recording/reproducing head having a magnetic shield layer with a thick edge portion 有权
标题翻译：垂直磁记录头和具有厚边缘部分的磁屏蔽层的垂直磁记录/再现头
公开(公告)号：US07903371B2
公开(公告)日：2011-03-08
申请号：US11780600
申请日：2007-07-20
申请人： Yusuke Toma , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita , Toshinori Watanabe
发明人： Yusuke Toma , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita , Toshinori Watanabe
IPC分类号： G11B5/147 , G11B5/39
CPC分类号： G11B5/1278 , G11B5/3123 , G11B5/3136 , G11B5/3912 , G11B5/3967
摘要： A perpendicular magnetic recording head includes a first magnetic layer having a main magnetic pole exposed at a medium-facing surface that faces a recording medium; a second magnetic layer that faces the first magnetic layer with a nonmagnetic layer interposed therebetween; and a coil layer for applying a recording magnetic field to the first magnetic layer. The second magnetic layer includes a relatively thick edge portion, whereby the edge-write magnetic field is reduced and the external magnetic field resistance is increased.
摘要翻译：垂直磁记录头包括：第一磁性层，其具有在面向记录介质的面向中的表面处暴露的主磁极; 面向第一磁性层的第二磁性层，介于其间的非磁性层; 以及用于向第一磁性层施加记录磁场的线圈层。第二磁性层包括相对较厚的边缘部分，由此边缘写入磁场减小并且外部磁场电阻增加。

3. 发明申请

US20080019043A1 Perpendicular Magnetic Recording Head and Perpendicular Magnetic Recording/Reproducing Head 有权
标题翻译：垂直磁记录头和垂直磁记录/再现头
公开(公告)号：US20080019043A1
公开(公告)日：2008-01-24
申请号：US11780608
申请日：2007-07-20
申请人： Yusuke TOMA , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita
发明人： Yusuke TOMA , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita
IPC分类号： G11B5/127
CPC分类号： G11B5/3123 , G11B5/1278 , G11B5/3912 , G11B5/3967
摘要： A perpendicular magnetic recording head according to the present invention is composed of a first magnetic layer having a main magnetic pole exposed at a facing surface opposite a recording medium, a second magnetic layer adjacent to the first magnetic layer with an intermediary non-magnetic layer disposed therebetween, and a coil layer for applying a recording magnetic field to the first magnetic layer. Since the second magnetic layer has a shape including a substantially arched portion in its cross section along a height direction, it becomes possible to keep an Edge Write magnetic field in a low level and improve external magnetic field resistance.
摘要翻译：根据本发明的垂直磁记录头由具有在与记录介质相对的相对表面暴露的主磁极的第一磁性层组成，与第一磁性层相邻的第二磁性层，其中设置有中间非磁性层以及用于向第一磁性层施加记录磁场的线圈层。由于第二磁性层具有沿其高度方向的横截面中包括大致拱形部分的形状，因此可以将边缘写入磁场保持在低电平并提高外部磁场电阻。

4. 发明授权

US07983010B2 Perpendicular magnetic recording head and perpendicular magnetic recording/reproducing head with at least one shield layer having a substantially arched portion 有权
标题翻译：垂直磁记录头和具有至少一个具有基本上拱形部分的屏蔽层的垂直磁记录/再现头
公开(公告)号：US07983010B2
公开(公告)日：2011-07-19
申请号：US11780608
申请日：2007-07-20
申请人： Yusuke Toma , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita
发明人： Yusuke Toma , Hiroshi Kameda , Kiyoshi Kobayashi , Toru Takahashi , Sumihito Morita
IPC分类号： G11B5/39 , G11B5/147
CPC分类号： G11B5/3123 , G11B5/1278 , G11B5/3912 , G11B5/3967
摘要： A perpendicular magnetic recording head according to the present invention is composed of a first magnetic layer having a main magnetic pole exposed at a facing surface opposite a recording medium, a second magnetic layer adjacent to the first magnetic layer with an intermediary non-magnetic layer disposed therebetween, and a coil layer for applying a recording magnetic field to the first magnetic layer. Since the second magnetic layer has a shape including a substantially arched portion in its cross section along a height direction, it becomes possible to keep an Edge Write magnetic field in a low level and improve external magnetic field resistance.
摘要翻译：根据本发明的垂直磁记录头由具有在与记录介质相对的相对表面暴露的主磁极的第一磁性层组成，与第一磁性层相邻的第二磁性层，其中设置有中间非磁性层以及用于向第一磁性层施加记录磁场的线圈层。由于第二磁性层具有沿其高度方向的横截面中包括大致拱形部分的形状，因此可以将边缘写入磁场保持在低电平并提高外部磁场电阻。

5. 发明申请

US20070230041A1 THIN-FILM MAGNETIC HEAD CAPABLE OF SECURING INSULATING PROPERTY AND MINIMIZING PROJECTION OF A RECORDING ELEMENT SECTION DUE TO HEAT EXPANSION 有权
标题翻译：薄膜电磁头能够保护绝热材料和最小化延伸部件的记录元件部分
公开(公告)号：US20070230041A1
公开(公告)日：2007-10-04
申请号：US11692046
申请日：2007-03-27
申请人： Sumihito Morita , Kiyoshi Kobayashi , Toru Takahashi
发明人： Sumihito Morita , Kiyoshi Kobayashi , Toru Takahashi
IPC分类号： G11B5/17 , G11B5/147
CPC分类号： G11B5/17 , G11B5/3123 , G11B5/3136
摘要： A thin-film magnetic head is capable of securing an insulating property and minimizing the projection of a recording element section due to heat expansion. The thin-film magnetic head includes a pair of magnetic layers disposed with a predetermined gap therebetween on a surface facing a recording medium. The layers are connected to each other along an inner part in a height direction from the medium-facing surface. A spiral recording coil is disposed between the pair of magnetic layers and wound around a connecting portion of the pair of magnetic layers. The recording coil includes a dense coil portion formed with a pitch smaller than that of the inner part in the height direction so as to be closer to the medium-facing surface than the connecting portion. An organic insulating layer is locally formed to fill coil gaps of the dense coil portion, and coil gaps other than those of the dense coil portion are filled with an inorganic insulating layer.
摘要翻译：薄膜磁头能够确保绝缘性能，并且由于热膨胀使记录元件部分的投影最小化。薄膜磁头包括在与记录介质相对的表面上以预定间隙设置的一对磁性层。这些层沿着与介质相对表面在高度方向上的内部部分彼此连接。螺旋记录线圈设置在一对磁性层之间，并缠绕在一对磁性层的连接部分上。记录线圈包括致密线圈部分，其形成为具有比内部部分在高度方向上的间距更小的间距，以便比连接部分更靠近中间面。局部地形成有机绝缘层以填充致密线圈部分的线圈间隙，而不是致密线圈部分的线圈间隙填充有无机绝缘层。

6. 发明授权

US07764465B2 Thin-film magnetic head with a spiral recording coil having a first part with a denser pitch closer to the medium facing surface than a second coil part and all set between a pair of magnetic layers 有权
标题翻译：具有螺旋记录线圈的薄膜磁头，其具有第一部分，该第一部分具有比第二线圈部分更靠近介质面对表面的更密的螺距，并且全部设置在一对磁性层之间
公开(公告)号：US07764465B2
公开(公告)日：2010-07-27
申请号：US11692046
申请日：2007-03-27
申请人： Sumihito Morita , Kiyoshi Kobayashi , Toru Takahashi
发明人： Sumihito Morita , Kiyoshi Kobayashi , Toru Takahashi
IPC分类号： G11B5/17
CPC分类号： G11B5/17 , G11B5/3123 , G11B5/3136
摘要： A thin-film magnetic head is capable of securing an insulating property and minimizing the projection of a recording element section due to heat expansion. The thin-film magnetic head includes a pair of magnetic layers disposed with a predetermined gap therebetween on a surface facing a recording medium. The layers are connected to each other along an inner part in a height direction from the medium-facing surface. A spiral recording coil is disposed between the pair of magnetic layers and wound around a connecting portion of the pair of magnetic layers. The recording coil includes a dense coil portion formed with a pitch smaller than that of the inner part in the height direction so as to be closer to the medium-facing surface than the connecting portion. An organic insulating layer is locally formed to fill coil gaps of the dense coil portion, and coil gaps other than those of the dense coil portion are filled with an inorganic insulating layer.
摘要翻译：薄膜磁头能够确保绝缘性能，并且由于热膨胀使记录元件部分的投影最小化。薄膜磁头包括在与记录介质相对的表面上以预定间隙设置的一对磁性层。这些层沿着与介质相对表面在高度方向上的内部部分彼此连接。螺旋记录线圈设置在一对磁性层之间，并缠绕在一对磁性层的连接部分上。记录线圈包括致密线圈部分，其形成为具有比内部部分在高度方向上的间距更小的间距，以便比连接部分更靠近中间面。局部地形成有机绝缘层以填充致密线圈部分的线圈间隙，而不是致密线圈部分的线圈间隙填充有无机绝缘层。

7. 发明授权

US07073250B2 Method of manufacturing thin film magnetic head having partial insulating layer formed on bottom pole layer through gap layer 失效
标题翻译：制造具有通过间隙层形成在底极层上的部分绝缘层的薄膜磁头的方法
公开(公告)号：US07073250B2
公开(公告)日：2006-07-11
申请号：US10632374
申请日：2003-08-01
申请人： Sumihito Morita , Naruaki Oki , Toshinori Watanabe , Hiroko Shinozaki
发明人： Sumihito Morita , Naruaki Oki , Toshinori Watanabe , Hiroko Shinozaki
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： B82Y10/00 , G11B5/09 , G11B5/3116 , G11B5/313 , G11B5/3967 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49064
摘要： A thin film magnetic head wherein a partial insulating layer is formed on a bottom pole layer with a gap layer provided therebetween, the gap depth Gd being regulated by the distance from a surface facing a recording medium to the partial insulating layer. A magnetic flux partially leaks from a tip region of an upper core layer to the bottom pole layer through the partial insulating layer to effectively suppress magnetic saturation of the tip region, thereby improving the NLTS characteristic and PW50 characteristic, and suppressing the occurrence of side fringing.
摘要翻译：一种薄膜磁头，其中在底极层上形成有部分绝缘层，其间设有间隙层，间隙深度Gd被从面向记录介质的表面到部分绝缘层的距离调节。磁通量通过部分绝缘层从上芯层的顶端区域部分地泄漏到底极层，以有效地抑制尖端区域的磁饱和，从而提高NLTS特性和PW50特性，并抑制侧边缘的发生。

8. 发明授权

US06999275B2 Thin film magnetic head having partial insulating layer formed on bottom pole layer through gap layer and method of manufacturing the same 失效
公开(公告)号：US06999275B2
公开(公告)日：2006-02-14
申请号：US09949251
申请日：2001-09-07
申请人： Sumihito Morita , Naruaki Oki , Toshinori Watanabe , Hiroko Shinozaki
发明人： Sumihito Morita , Naruaki Oki , Toshinori Watanabe , Hiroko Shinozaki
IPC分类号： G11B5/127
CPC分类号： B82Y10/00 , G11B5/09 , G11B5/3116 , G11B5/313 , G11B5/3967 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49064
摘要： A thin film magnetic head wherein a partial insulating layer is formed on a bottom pole layer with a gap layer provided therebetween, the gap depth Gd being regulated by the distance from a surface facing a recording medium to the partial insulating layer. A magnetic flux partially leaks from a tip region of an upper core layer to the bottom pole layer through the partial insulating layer to effectively suppress magnetic saturation of the tip region, thereby improving the NLTS characteristic and PW50 characteristic, and suppressing the occurrence of side fringing.

9. 发明授权

US06954333B2 Thin film magnetic head having partial insulating layer formed on bottom pole layer through gap layer and method of manufacturing the same 失效
标题翻译：具有通过间隙层形成在底极层上的部分绝缘层的薄膜磁头及其制造方法
公开(公告)号：US06954333B2
公开(公告)日：2005-10-11
申请号：US10688762
申请日：2003-10-17
申请人： Sumihito Morita , Naruaki Oki , Toshinori Watanabe , Hiroko Shinozaki
发明人： Sumihito Morita , Naruaki Oki , Toshinori Watanabe , Hiroko Shinozaki
IPC分类号： G11B5/09 , G11B5/31 , G11B5/39 , G11B5/127
CPC分类号： B82Y10/00 , G11B5/09 , G11B5/3116 , G11B5/313 , G11B5/3967 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49064
摘要： A thin film magnetic head wherein a partial insulating layer is formed on a bottom pole layer with a gap layer provided therebetween, the gap depth Gd being regulated by the distance from a surface facing a recording medium to the partial insulating layer. A magnetic flux partially leaks from a tip region of an upper core layer to the bottom pole layer through the partial insulating layer to effectively suppress magnetic saturation of the tip region, thereby improving the NLTS characteristic and PW50 characteristic, and suppressing the occurrence of side fringing.
摘要翻译：一种薄膜磁头，其中在底极层上形成有部分绝缘层，其间设有间隙层，间隙深度Gd被从面向记录介质的表面到部分绝缘层的距离调节。磁通量通过部分绝缘层从上芯层的顶端部分泄漏到底极层，以有效地抑制尖端区域的磁饱和，从而提高NLTS特性和PW 50特性，并抑制侧面的发生边缘

10. 发明授权

US08045293B2 Thin film magnetic head including thermal deformation-preventing layer 有权
标题翻译：薄膜磁头包括热变形防止层
公开(公告)号：US08045293B2
公开(公告)日：2011-10-25
申请号：US11851692
申请日：2007-09-07
申请人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka , Hironori Namba
发明人： Kiyoshi Kobayashi , Sumihito Morita , Tomoo Otsuka , Hironori Namba
IPC分类号： G11B5/31 , G11B5/60 , G11B21/21
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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