公开(公告)号：US08159782B2

公开(公告)日：2012-04-17

申请号：US13020881

申请日：2011-02-04

Applicant: Kiyoshi Kobayashi ,  Sumihito Morita ,  Tomoo Otsuka

Inventor： Kiyoshi Kobayashi ,  Sumihito Morita ,  Tomoo Otsuka

IPC: G11B5/31 ,  G11B5/40

CPC classification number: G11B5/314 ,  G11B5/1278 ,  G11B5/3136 ,  G11B5/3967 ,  G11B5/6064

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08045292B2

公开(公告)日：2011-10-25

申请号：US11943938

申请日：2007-11-21

Applicant: Yusuke Toma ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hiroshi Kameda

Inventor： Yusuke Toma ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Hiroshi Kameda

IPC: G11B5/147

CPC classification number: G11B5/1278 ,  G11B5/3116

Abstract: A perpendicular magnetic recording head is provided capable of suppressing the magnetic field attributable to the edge write phenomenon and improving resistance to an external magnetic field. The perpendicular magnetic recording head includes a magnetic layer that has a main magnetic pole on a surface facing a recording medium; a return yoke layer that is disposed on the magnetic layer with a nonmagnetic layer disposed therebetween and has a large width in the direction of the main magnetic pole; and a coil layer for applying a recording magnetic field to the magnetic layer. The return yoke layer is provided with such a shape that as seen in the plan view, the return yoke layer is exposed from the medium facing surface with a width not greater than the width in the track width direction of a protrusion region of the return yoke layer that covers the coil layer and the width of the return yoke layer gradually increases in the height direction from the medium facing surface.

Abstract translation: 提供了能够抑制归因于边缘写入现象的磁场并提高对外部磁场的抵抗力的垂直磁记录头。 垂直磁记录头包括在面向记录介质的表面上具有主磁极的磁性层; 返回磁轭层，其设置在磁性层上，其间设置有非磁性层，并且在主磁极的方向上具有大的宽度; 以及用于向磁性层施加记录磁场的线圈层。 返回磁轭层具有如下的形状：从平面图看，返回磁轭层从介质面向表面露出，宽度不大于返回磁轭的突出区域的磁道宽度方向上的宽度 覆盖线圈层的层和返回轭层的宽度在与面向介质的表面的高度方向上逐渐增加。

公开(公告)号：US07983010B2

公开(公告)日：2011-07-19

申请号：US11780608

申请日：2007-07-20

Applicant: Yusuke Toma ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita

Inventor： Yusuke Toma ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita

IPC: G11B5/39 ,  G11B5/147

CPC classification number: G11B5/3123 ,  G11B5/1278 ,  G11B5/3912 ,  G11B5/3967

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07903373B2

公开(公告)日：2011-03-08

申请号：US11802019

申请日：2007-05-18

Applicant: Kiyoshi Kobayashi ,  Sumihito Morita ,  Tomoo Otsuka

Inventor： Kiyoshi Kobayashi ,  Sumihito Morita ,  Tomoo Otsuka

IPC: G11B5/31 ,  G11B5/40

CPC classification number: G11B5/314 ,  G11B5/1278 ,  G11B5/3136 ,  G11B5/3967 ,  G11B5/6064

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07903371B2

公开(公告)日：2011-03-08

申请号：US11780600

申请日：2007-07-20

Applicant: Yusuke Toma ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita ,  Toshinori Watanabe

Inventor： Yusuke Toma ,  Hiroshi Kameda ,  Kiyoshi Kobayashi ,  Toru Takahashi ,  Sumihito Morita ,  Toshinori Watanabe

IPC: G11B5/147 ,  G11B5/39

CPC classification number: G11B5/1278 ,  G11B5/3123 ,  G11B5/3136 ,  G11B5/3912 ,  G11B5/3967

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07894160B2

公开(公告)日：2011-02-22

申请号：US11684455

申请日：2007-03-09

Applicant: Kiyoshi Kobayashi ,  Kunio Koizumi ,  Kenji Ichinohe

Inventor： Kiyoshi Kobayashi ,  Kunio Koizumi ,  Kenji Ichinohe

IPC: G11B5/40

CPC classification number: G11B5/314 ,  G11B5/6005 ,  G11B5/6064 ,  G11B2005/0005

Abstract: A thin-film magnetic head which can locally project a reproduction element toward a recording medium and a method of manufacturing the thin-film magnetic head are provided. The thin-film magnetic head includes a reproduction element, a recording element which is stacked on the reproduction element and has a pair of magnetic core layers and a coil layer configured to apply a recording magnetic field to the magnetic core layers, and a heat-emitting member emitting heat by electrification, which causes the reproduction element to project toward the recording medium by thermal expansion. The heat-emitting member is disposed below the coil layer.

Abstract translation: 本发明提供一种将再现元件局部投影到记录介质上的薄膜磁头和薄膜磁头的制造方法。 薄膜磁头包括再现元件，堆叠在再现元件上并具有一对磁芯层的记录元件和被配置为向磁芯层施加记录磁场的线圈层， 发光部件通过带电发出热量，这导致再现元件通过热膨胀向记录介质突出。 发热部件设置在线圈层的下方。

公开(公告)号：US07821744B2

公开(公告)日：2010-10-26

申请号：US11697979

申请日：2007-04-09

Applicant: Toru Takahashi ,  Kiyoshi Kobayashi

Inventor： Toru Takahashi ,  Kiyoshi Kobayashi

IPC: G11B5/29 ,  H04F31/00

CPC classification number: G11B5/3193 ,  G11B5/3169 ,  G11B5/3967 ,  Y10T29/49021 ,  Y10T29/49037

Abstract: A thin film magnetic head substrate includes a plurality of head element portions having read elements and write elements in rows. Adjacent head element portions interpose a read monitor element and a write monitor element that are used as element resistance monitors for the read element and the write element when a lapping process is performed to form a medium-facing surface on the head element portion. A common electrode terminal is connected with the read monitor element and the write monitor element. A pair of individual electrode terminals are each connected to the read monitor element and the write monitor element, respectively.

Abstract translation: 薄膜磁头基板包括具有行的读取元件和写入元件的多个头元件部分。 当执行研磨处理以在头元件部分上形成中等的表面时，相邻头元件部分插入用作读元件和写元件的元件电阻监视器的读监视元件和写监视元件。 公共电极端子与读取监视器元件和写入监视器元件连接。 一对单独的电极端子分别连接到读取监视器元件和写入监视器元件。

公开(公告)号：US07764465B2

公开(公告)日：2010-07-27

申请号：US11692046

申请日：2007-03-27

Applicant: Sumihito Morita ,  Kiyoshi Kobayashi ,  Toru Takahashi

Inventor： Sumihito Morita ,  Kiyoshi Kobayashi ,  Toru Takahashi

IPC: G11B5/17

CPC classification number: G11B5/17 ,  G11B5/3123 ,  G11B5/3136

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07764464B2

公开(公告)日：2010-07-27

申请号：US11329351

申请日：2006-01-10

Applicant: Kiyoshi Kobayashi

Inventor： Kiyoshi Kobayashi

IPC: G11B5/17 ,  G11B5/31

CPC classification number: G11B5/1278

Abstract: A film thickness of second coil layers (second coil pieces) disposed below a main magnetic pole layer (first magnetic layer) is larger than a film thickness of first coil layers (first coil pieces). Hence, while a magnetic path length of magnetic flux flowing through the main magnetic pole layer (first magnetic layer) and a return path layer (second magnetic layer) is decreased by decreasing the film thickness of the first coil layers (first coil pieces) disposed in a space between the main magnetic pole layer (first magnetic layer) and the return path layer (second magnetic layer), series resistance of an entire coil layer can be decreased by increasing the film thickness of the second coil layers (second coil pieces).

Abstract translation: 设置在主磁极层（第一磁性层）下方的第二线圈层（第二线圈片）的膜厚度大于第一线圈层（第一线圈片）的膜厚度。 因此，通过降低设置在第一线圈层（第一线圈片）的第一线圈层（第一线圈片）的膜厚度而减小流过主磁极层（第一磁性层）和返回路径层（第二磁性层）的磁通量的磁路长度 在主磁极层（第一磁性层）和返回路径层（第二磁性层）之间的空间中，可以通过增加第二线圈层（第二线圈片）的膜厚度来减小整个线圈层的串联电阻， 。

公开(公告)号：US20090202806A1

公开(公告)日：2009-08-13

申请号：US12029203

申请日：2008-02-11

Applicant: Takeo EBINA ,  Kiyoshi Kobayashi ,  Ryo Ishii ,  Tatsuhiro Okada ,  Fujio Mizukami

Inventor： Takeo EBINA ,  Kiyoshi Kobayashi ,  Ryo Ishii ,  Tatsuhiro Okada ,  Fujio Mizukami

IPC: C08K3/34 ,  C09D1/00 ,  C09D101/02 ,  B32B5/06 ,  B32B19/04

CPC classification number: C08L63/00 ,  C08K3/346 ,  C08K2201/008 ,  C09D7/61 ,  Y10T442/20 ,  Y10T442/2139

Abstract: The present invention provides a novel technology and a novel material having excellent pliability, gas barrier properties and water resistance, for the technical fields of packaging materials, sealing materials, electric insulating materials and the like, the present invention relates to a film of a material having a denatured clay as a main constituent thereof, wherein (1) the film comprises a denatured clay and an additive, (2) the weight ratio of the denatured clay is not less than 70% relative to total solids, (3) the film has gas barrier properties and water-vapor barrier properties, (4) the film has heat resistance, (5) the film has water resistance, (6) the film has sufficient mechanical strength to be used as a self-supporting film, and (7) the film can be formed on the surface of metals, plastics, rubber, paper and the like, and the present invention can provide a material comprising the denatured clay film in which denatured clay particles are highly oriented and which has excellent heat resistance, excellent pliability, excellent gas barrier properties, excellent water-vapor barrier properties, and high water resistance.

Abstract translation: 本发明为包装材料，密封材料，电绝缘材料等的技术领域提供了具有优异的柔韧性，阻气性和耐水性的新技术和新型材料，本发明涉及一种材料的膜 具有变性粘土作为其主要成分，其中（1）膜包含变性粘土和添加剂，（2）变性粘土的重量比相对于总固体不小于70％，（3）膜 具有阻气性和水汽阻隔性，（4）膜具有耐热性，（5）膜具有防水性，（6）该膜具有足够的机械强度用作自支撑膜，（ 7）可以在金属，塑料，橡胶，纸等的表面上形成膜，本发明可以提供包含变性粘土颗粒高度取向的变性粘土膜的材料，其具有e 优异的耐热性，优良的柔韧性，优异的阻气性，优异的水蒸气阻隔性和高耐水性。