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公开(公告)号：US07911743B2
公开(公告)日：2011-03-22
申请号：US11849636
申请日：2007-09-04
IPC分类号： G11B5/31
CPC分类号： G11B5/29 , G11B5/00826 , G11B5/11 , G11B5/3912 , G11B5/3948
摘要： Provided is a multichannel thin-film magnetic head having a plurality of read head elements neighboring with each other, each of which includes shield layers having a desired stable magnetic-domain structure. The head comprises at least one read head part comprising a plurality of read head elements aligned in the track width direction, wherein each of the plurality of read head elements comprises a lower shield layer and an upper shield layer, and the at least one read head part comprises: a lower shield part comprising a plurality of the lower shield layers aligned in the track width direction; and an upper shield part comprising a plurality of the upper shield layers aligned in the track width direction, and wherein dummy shield layers are provided respectively on both sides of at least the lower shield part.
摘要翻译： 提供了具有彼此相邻的多个读取头元件的多通道薄膜磁头，每个读取头元件包括具有期望的稳定磁畴结构的屏蔽层。 头部包括至少一个读取头部分，其包括在轨道宽度方向上对齐的多个读取头元件，其中多个读取头元件中的每一个包括下部屏蔽层和上部屏蔽层，以及至少一个读取头 部分包括：下屏蔽部分，包括沿轨道宽度方向排列的多个下屏蔽层; 以及上部屏蔽部分，其包括沿着所述磁道宽度方向排列的多个所述上部屏蔽层，并且其中虚拟屏蔽层分别设置在至少所述下部屏蔽部分的两侧。
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公开(公告)号：US20100196739A1
公开(公告)日：2010-08-05
申请号：US12366262
申请日：2009-02-05
CPC分类号： G11B5/0083 , Y10T156/10 , Y10T428/1193
摘要： The present invention relates to a magnetic head which can be kept in stable contact with a magnetic tape and has improved production efficiency, a manufacturing method therefor, and a magnetic tape device. The magnetic head according to the present invention includes a substrate and two auxiliary members, having a tape bearing surface to be in sliding contact with a magnetic tape. Reproducing and recording elements in alignment with each other along a tape running direction are arranged in the substrate along a tape width direction. The two auxiliary members are joined to two ends, respectively, of the substrate, constituting the tape bearing surface together with the substrate. The substrate or the two auxiliary members are formed with slopes extending from join-faces between the substrate and the two auxiliary members to the tape bearing surface to make clearances for the magnetic tape. Since the running magnetic tape can be drawn to the clearances by negative pressure generated at the clearances, it can be held in parallel with the tape bearing surface.
摘要翻译： 本发明涉及一种可以与磁带保持稳定接触并提高生产效率的磁头及其制造方法和磁带装置。 根据本发明的磁头包括基板和两个辅助构件，其具有与磁带滑动接触的磁带轴承表面。 沿带传送方向彼此对准的再现和记录元件沿着带宽度方向布置在基板中。 两个辅助构件分别连接到基板的两个端部，与基板一起构成带承载表面。 衬底或两个辅助构件形成有从衬底和两个辅助构件之间的连接面延伸到带承载表面的斜面，以形成磁带的间隙。 由于可以通过在间隙处产生的负压将流动的磁带吸引到间隙，所以可以与带承载表面保持平行。
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3.发明授权公开(公告)号：US08035919B2
公开(公告)日：2011-10-11
申请号：US12335090
申请日：2008-12-15
申请人： Seiji Yari , Yasufumi Uno , Yuji Ito , Hideaki Sato , Nozomu Hachisuka
发明人： Seiji Yari , Yasufumi Uno , Yuji Ito , Hideaki Sato , Nozomu Hachisuka
CPC分类号： G11B5/3106 , G11B5/00826 , G11B5/102
摘要： A multi-channel thin-film magnetic head includes a substrate, a plurality of thin-film magnetic head elements formed on the substrate, a closure fixed onto the plurality of thin-film magnetic head elements, a protection film laminated on a whole area of a TBS of the plurality of thin-film magnetic head elements and the closure, and many micro-grooves formed in a surface of the protection film.
摘要翻译： 多通道薄膜磁头包括基板，形成在基板上的多个薄膜磁头元件，固定到多个薄膜磁头元件上的封闭件，层压在整个区域上的保护膜 多个薄膜磁头元件的TBS和封闭件，以及形成在保护膜的表面中的许多微槽。
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4.发明授权公开(公告)号：US07742260B2
公开(公告)日：2010-06-22
申请号：US11469091
申请日：2006-08-31
申请人： Naoki Ohta , Nozomu Hachisuka
发明人： Naoki Ohta , Nozomu Hachisuka
IPC分类号： G11B5/55
CPC分类号： G11B5/4826 , G11B5/3906
摘要： A magnetic head assembly includes a magnetic head slider with an element-formed surface on which at least one MR read head element is formed, an ABS to be opposed in operation to a magnetic recording medium and a fixing surface that is the other side of the ABS, and a support for supporting the magnetic head slider. The fixing surface of the magnetic head slider is fixed to the support by at least cure-shrinkage resin material layer providing a contractive force when cured. The cure-shrinkage resin material layer has at least one strip-shaped pattern running along a track width direction.
摘要翻译： 磁头组件包括具有元件形成表面的磁头滑动器，在其上形成至少一个MR读取头元件，在操作中与磁记录介质相对的ABS和作为磁记录介质的另一侧的固定表面 ABS和用于支撑磁头滑块的支撑。 磁头滑块的固定表面至少在固化时提供收缩力的固化收缩树脂材料层固定在支撑体上。 固化收缩树脂材料层具有沿着轨道宽度方向延伸的至少一个条状图案。
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公开(公告)号：US07440237B2
公开(公告)日：2008-10-21
申请号：US11214711
申请日：2005-08-31
申请人： Noriaki Kasahara , Nozomu Hachisuka
发明人： Noriaki Kasahara , Nozomu Hachisuka
CPC分类号： G11B5/4826 , G11B5/31
摘要： In a thin film magnetic head of the present invention, lead formation patterns of a first lead for connection between a lower shield layer and a first extraction electrode portion and a second lead for connection between an upper shield layer and a second extraction electrode portion are each formed so as not to have an overlapping portion with a heatsink layer but to bypass the heatsink layer when observing from the upper shield layer side toward the lower shield layer in a transparent state in plan view. Therefore, it is possible to increase an effect of heat radiation to the substrate side on the basis of the presence of the heatsink layer to thereby limit propagation of heat to a magnetoresistive effect layer as much as possible and further to achieve a drastic improvement in recording and reproducing characteristics at high recording frequencies, i.e. frequency characteristics (f characteristics) in a high frequency region.
摘要翻译： 在本发明的薄膜磁头中，分别在下屏蔽层和第一引出电极部分之间连接的第一引线和上屏蔽层与第二引出电极部分之间的用于连接的第二引线的引线形成图案分别为 形成为在平面图中以透明状态从上屏蔽层侧向下屏蔽层观察时，不具有与散热层重叠的部分，而是绕过散热层。 因此，可以基于散热层的存在来增加对基板侧的散热效果，从而尽可能地限制热到磁阻效应层的传播，并进一步实现记录的急剧改善 并且在高记录频率下再现特性，即高频区域的频率特性（f特性）。
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公开(公告)号：US07287316B2
公开(公告)日：2007-10-30
申请号：US10195106
申请日：2002-07-15
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3116 , G11B5/3166 , G11B5/3903 , Y10T29/49041 , Y10T29/53165
摘要： A lapping monitor element that is juxtaposed with a magnetic transducer element having a magnetoresistance effect film to determine the lapping position upon lapping the element height of the magnetic transducer element to a predetermined dimension. The lapping monitor element includes a resistance film to be resistance measured. The resistance film is a metal film of nonmagnetic transition metal or of alloy composed mainly of nonmagnetic transition metal, or a multilayered film where two or more such metal films are laid one upon another. The lapping monitor makes it possible to extremely stabilize the ELG sensor resistance measured values upon lapping as well as to provide a high accuracy MR height control.
摘要翻译： 研磨监测元件，其与具有磁阻效应膜的磁换能器元件并置，以在将磁换能器元件的元件高度研磨到预定尺寸时确定研磨位置。 研磨监测元件包括测量电阻的电阻膜。 电阻膜是主要由非磁性过渡金属组成的非磁性过渡金属或合金的金属膜，或者其中两个或更多个这样的金属膜彼此叠置的多层膜。 研磨监测器可以在研磨时极大地稳定ELG传感器电阻测量值，并提供高精度的MR高度控制。
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公开(公告)号：US07236392B2
公开(公告)日：2007-06-26
申请号：US11101468
申请日：2005-04-08
申请人： Shunji Saruki , Kenji Inage , Nozomu Hachisuka , Hiroshi Kiyono
发明人： Shunji Saruki , Kenji Inage , Nozomu Hachisuka , Hiroshi Kiyono
IPC分类号： G11B5/455
CPC分类号： G11C11/16 , G11C29/50 , G11C29/50008 , G11C2029/5006
摘要： Testing a TMR element includes a step of measuring initially a resistance value of the TMR element to provide the measured resistance value as a first resistance value, a step of measuring a resistance value of the TMR element after continuously feeding a current through the TMR element from a anti-substrate side to a substrate side for a predetermined period of time, to provide the measured resistance value as a second resistance value, and a step of evaluating the TMR element by comparing the first resistance value and the second resistance value with each other.
摘要翻译： 测试TMR元件包括首先测量TMR元件的电阻值以提供测量的电阻值作为第一电阻值的步骤，在连续馈送通过TMR元件的电流之后测量TMR元件的电阻值的步骤 将基板侧的反基板侧保持规定时间，将测定的电阻值作为第二电阻值提供，以及通过将第一电阻值与第二电阻值进行比较来对TMR元件进行比较的步骤 。
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8.发明申请公开(公告)号：US20070103815A1
公开(公告)日：2007-05-10
申请号：US11469091
申请日：2006-08-31
申请人： Naoki OHTA , Nozomu Hachisuka
发明人： Naoki OHTA , Nozomu Hachisuka
CPC分类号： G11B5/4826 , G11B5/3906
摘要： A magnetic head assembly includes a magnetic head slider with an element-formed surface on which at least one MR read head element is formed, an ABS to be opposed in operation to a magnetic recording medium and a fixing surface that is the other side of the ABS, and a support for supporting the magnetic head slider. The fixing surface of the magnetic head slider is fixed to the support by at least cure-shrinkage resin material layer providing a contractive force when cured. The cure-shrinkage resin material layer has at least one strip-shaped pattern running along a track width direction.
摘要翻译： 磁头组件包括具有元件形成表面的磁头滑动器，在其上形成至少一个MR读取头元件，在操作中与磁记录介质相对的ABS和作为磁记录介质的另一侧的固定表面 ABS和用于支撑磁头滑块的支撑。 磁头滑块的固定表面至少在固化时提供收缩力的固化收缩树脂材料层固定在支撑体上。 固化收缩树脂材料层具有沿着轨道宽度方向延伸的至少一个条状图案。
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公开(公告)号：US20050237789A1
公开(公告)日：2005-10-27
申请号：US11101468
申请日：2005-04-08
申请人： Shunji Saruki , Kenji Inage , Nozomu Hachisuka , Hiroshi Kiyono
发明人： Shunji Saruki , Kenji Inage , Nozomu Hachisuka , Hiroshi Kiyono
IPC分类号： G01R33/09 , G11B5/39 , G11B5/455 , G11C11/00 , G11C29/50 , H01L21/8246 , H01L27/105 , H01L43/08 , H01L43/12
CPC分类号： G11C11/16 , G11C29/50 , G11C29/50008 , G11C2029/5006
摘要： A method for testing a TMR element includes a step of measuring initially a resistance value of the TMR element to provide the measured resistance value as a first resistance value, a step of measuring a resistance value of the TMR element after continuously feeding a current through the TMR element from a anti-substrate side to a substrate side for a predetermined period of time, to provide the measured resistance value as a second resistance value, and a step of evaluating the TMR element by comparing the first resistance value and the second resistance value with each other.
摘要翻译： 用于测试TMR元件的方法包括首先测量TMR元件的电阻值以提供测量的电阻值作为第一电阻值的步骤，在连续馈送电流通过所述TMR元件之后测量TMR元件的电阻值的步骤 TMR元件从反衬底侧到基板侧预定时间段，以将测量的电阻值提供为第二电阻值，以及通过比较第一电阻值和第二电阻值来评估TMR元件的步骤 与彼此。
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10.发明授权Thin-film magnetic head with grooves on medium-opposed surface and manufacturing method of the head 有权具有介质相对表面凹槽的薄膜磁头和磁头的制造方法公开(公告)号：US07898765B2
公开(公告)日：2011-03-01
申请号：US12016011
申请日：2008-01-17
申请人： Nozomu Hachisuka
发明人： Nozomu Hachisuka
IPC分类号： G11B5/187
CPC分类号： G11B5/00826 , G11B5/3163 , G11B5/3967
摘要： Provided is a thin-film magnetic head that can be adequately contacted with the magnetic recording medium, and thus, can perform read and write operations sufficiently and stably. This head comprises: at least one magnetic head element for reading and/or writing data, formed on/above an element formation surface of a substrate; an overcoat layer formed so as to cover the at least one magnetic head element; and a closure adhered on at least a portion of an upper surface of the overcoat layer, wherein a groove, extending in a track width direction, is provided on a medium-opposed surface: in an area on an end surface of the substrate, the area being on a boundary between the substrate and the overcoat layer; or in an area covering end surface portions of the substrate and the overcoat layer, the area thus overlapping the boundary between the substrate and the overcoat layer.
摘要翻译： 提供了能够与磁记录介质充分接触的薄膜磁头，从而能够充分且稳定地进行读写操作。 该头包括：至少一个用于读取和/或写入数据的磁头元件，形成在衬底的元件形成表面上/上方; 形成为覆盖所述至少一个磁头元件的外涂层; 以及附着在所述外涂层的上表面的至少一部分上的封闭体，其特征在于，在介质相对表面上设置有沿轨道宽度方向延伸的槽，在所述基板的端面的区域中， 面积在基材和外涂层之间的边界上; 或者在覆盖基板和外涂层的端面部分的区域中，因此与基板和外涂层之间的边界重叠的区域。
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