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公开(公告)号：US06591478B2
公开(公告)日：2003-07-15
申请号：US09291508
申请日：1999-04-14
IPC分类号： G11B5127
CPC分类号： G11B5/10 , G11B5/255 , G11B5/3106 , G11B5/6005 , Y10T29/49021 , Y10T29/49032 , Y10T29/49041 , Y10T29/49046 , Y10T29/49048 , Y10T428/24355
摘要： The use of a Nd-YAG laser or excimer laser enables easy formation of protrusions on a protecting layer and a portion of an opposite surface near the trailing side end thereof and a thin film element. It is thus possible to avoid direct contact between the thin film element and the disk surface, and thus prevent damage to the thin film element and wearing thereof even if a slider and the disk surface repeatedly slide on each other.
摘要翻译： 使用Nd-YAG激光器或准分子激光器能够容易地在保护层和靠近其后端的相对表面的一部分和薄膜元件上形成突起。 因此，可以避免薄膜元件和盘表面之间的直接接触，从而即使滑块和盘表面彼此反复滑动，也可以防止薄膜元件的损坏和磨损。
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2.发明授权
公开(公告)号：US06068917A
公开(公告)日：2000-05-30
申请号：US824114
申请日：1997-03-26
申请人： Nobuo Tsuno , Soichiro Matsuzawa
发明人： Nobuo Tsuno , Soichiro Matsuzawa
CPC分类号： H01B1/02 , B32B15/00 , H01B1/04 , H01L2224/45572 , H01L2224/45599 , H01L2924/00014 , H01L2924/01004 , H01L2924/01025 , H01L2924/01078 , H01L2924/01079 , H01L2924/30107 , Y10T428/294 , Y10T428/2942 , Y10T428/2944 , Y10T428/2947 , Y10T428/2951
摘要： A composite metallic wire includes: an inner layer having a cross-sectional shape of a rough circle; and a metal outer layer having a cross-sectional shape of a rough ring; wherein the composite metallic wire has a diameter of 15 .mu.m or less and an electric resistance of 300 .OMEGA./m or less. A composite type magnetic head using as a coil wire a composite wire comprising: (1) a composite metallic wire comprising: an inner layer having a cross-sectional shape of a rough circle; and a metal outer layer having a cross-sectional shape of a rough ring; wherein the composite metallic wire has a diameter of 15 .mu.m or less and an electric resistance of 300 .OMEGA./m or less, and (2) an insulating coat provided in the outer periphery of the outer layer.
摘要翻译： 复合金属线包括：具有粗圆的横截面形状的内层; 以及具有粗环的横截面形状的金属外层; 其中，所述复合金属线的直径为15μm以下，电阻为300Ω/ m以下。 一种复合型磁头，其使用作为线圈线的复合线，其包括：（1）复合金属线，其包括：具有粗圆的横截面形状的内层; 以及具有粗环的横截面形状的金属外层; 其中所述复合金属线的直径为15μm以下，电阻为300Ω/ m以下，（2）设置在所述外层的外周的绝缘层。
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公开(公告)号：US5297330A
公开(公告)日：1994-03-29
申请号：US933301
申请日：1992-08-21
申请人： Soichiro Matsuzawa , Nobuhiro Terada , Hiroaki Yui
发明人： Soichiro Matsuzawa , Nobuhiro Terada , Hiroaki Yui
CPC分类号： G11B5/6005 , G11B5/10 , G11B5/105 , G11B5/193 , Y10T29/49041 , Y10T29/49052
摘要： Method of producing a core slider for a rigid magnetic disk drive, including a slider body having air bearing portions, and a core chip which has a magnetic gap for writing and reading information and which is integrally secured to the slider body. The slider body consists of a ferrite section which includes at least the air bearing portions and which is formed of Mn--Zn ferrite, and a non-magnetic ceramic section formed of a non-magnetic ceramic material. The core chip is accommodated in a groove formed in the slider body and bonded to the slider body by a glass material.
摘要翻译： 制造用于刚性磁盘驱动器的磁芯滑块的方法，包括具有空气轴承部分的滑动体，以及具有用于书写和读取信息的磁隙的芯片，并且其一体地固定到滑块体。 滑块体由至少包括空气轴承部分并且由Mn-Zn铁氧体形成的铁氧体部分和由非磁性陶瓷材料形成的非磁性陶瓷部分组成。 芯片容纳在形成在滑块体中的槽中，并通过玻璃材料结合到滑块体。
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公开(公告)号：US5537732A
公开(公告)日：1996-07-23
申请号：US212802
申请日：1994-03-15
CPC分类号： G11B5/1871 , G11B5/105 , G11B5/17 , Y10T29/49041
摘要： A composite type magnetic head core slider including a slider body and a core chip, wherein a slot is formed in the slider body such that the slot is open in an end face of the slider body and located within a width of a central recessed portion between two parallel air-bearing portions formed on a surface of the slider body which is to face a magnetic disk, or within a width of an outer recessed portion disposed on one side of one of the air-bearing portions, which one side is remote from the central recessed portion. The core chip is fixed in the slot such that an upper end portion of the core chip protrudes above a surface of the central or outer recessed portion, and the protruding upper end portion of the core chip is subjected to an operation to form a track portion having a magnetic gap.
摘要翻译： 一种复合型磁头芯片滑块，其包括滑块体和芯片，其中，在所述滑块体中形成狭槽，使得所述狭槽在所述滑块体的端面中敞开，并位于所述滑块体的中心凹部的宽度内， 两个平行的空气轴承部分形成在滑块体的面对磁盘的表面上，或者在设置在一个空气轴承部分的一个空气轴承部分的一侧的外部凹部的宽度内， 中央凹部。 芯片固定在槽中，使得芯片的上端部突出于中央或外凹部的表面之上，并且芯片的突出的上端部进行操作以形成轨道部分 具有磁隙。
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公开(公告)号：US5522126A
公开(公告)日：1996-06-04
申请号：US213528
申请日：1994-03-16
IPC分类号： G11B5/127
CPC分类号： G11B5/1276 , Y10T29/49057
摘要： A ferrite plate and a ceramic plate are joined to each other by a glass layer interposed therebetween. The ferrite plate and the ceramic plate thus joined to each other by the glass layer serve as a trailing core in the form of a composite for use in a magnetic head. Only the ferrite plate is exposed on a slidable surface to prevent the trailing core from being deformed or cracked. The trailing core has low inductance for high-density recording to prevent the magnetic head from causing recording/reading errors.
摘要翻译： 铁氧体板和陶瓷板通过夹在其间的玻璃层彼此接合。 因此，通过玻璃层将铁素体板和陶瓷板彼此接合，作为用于磁头的复合材料的后芯。 只有铁氧体板露在可滑动的表面上，以防止后铁芯变形或破裂。 拖尾芯具有低电感以进行高密度记录，以防止磁头造成记录/读取错误。
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6.发明授权Core chip for magnetic head core slider, having marker indicating grinding depth to establish nominal depth of magnetic gap 失效用于磁头芯片滑块的芯片，具有指示研磨深度的标记，以建立磁性间隙的标称深度
公开(公告)号：US5285342A
公开(公告)日：1994-02-08
申请号：US847683
申请日：1992-03-06
CPC分类号： G11B5/1871 , Y10T29/49032 , Y10T29/49037
摘要： A core chip for a magnetic head core slider, including a first and a second core member which are bonded together so as to define a coil-winding aperture. The two core members cooperate to provide a gap-forming portion defining a magnetic gap on one side of the coil-winding aperture, and a cut-off portion provided adjacent to the gap-forming portion. The cut-off portion is removed by grinding at the top surface to establish the nominal depth of the magnetic gap. The cut-off portion has a distance marker which extends from the top surface down to the gap-forming portion and which has an end portion adjacent to the gap-forming portion. The end portion is shaped so as to indicate a distance between the top surface and the gap-forming portion, that is, the depth of the magnetic gap, when the cut-off portion is removed to provide a sliding surface of the core chip in which the magnetic gap is open. Also disclosed is a process of fabricating the magnetic head core slider using the core chip.
摘要翻译： 一种用于磁头芯片滑块的芯片，包括第一和第二芯部件，它们结合在一起以限定线圈卷绕孔。 两个芯构件协作以提供限定线圈绕组孔的一侧上的磁隙的间隙形成部分和邻近间隙形成部分设置的截止部分。 通过在顶部表面的研磨来去除切断部分以建立磁隙的标称深度。 切断部分具有从上表面向下延伸到间隙形成部分并且具有与间隙形成部分相邻的端部的距离标记。 端部被成形为表示当切除部分被移除以提供芯片的滑动表面时，顶表面和间隙形成部分之间的距离，即磁隙的深度 磁隙打开。 还公开了使用芯片芯片制造磁头芯片滑块的过程。
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公开(公告)号：US5396389A
公开(公告)日：1995-03-07
申请号：US885447
申请日：1992-05-20
摘要： A thin-film magnetic circuit board is disclosed which includes: a substrate formed of a non-magnetic material; a connector formed from a magnetic film on one major surface of the substrate, the connector having opposite end portions which protrude from the substrate to form a pair of protrusions; at least one coil formed from an electrically conductive film to provide a circuit pattern on the one major surface of the substrate, each coil having a spiral shape and surrounding a corresponding one of at least one of the protrusions of the connector; and a pair of leads which are electrically connected to opposite ends of the circuit pattern formed by the coil(s). Also is disclosed a magnetic head including this thin-film magnetic circuit board and a core element having a magnetic gap.
摘要翻译： 公开了一种薄膜磁路板，其包括：由非磁性材料形成的基板; 由基片的一个主表面上的磁性膜形成的连接器，所述连接器具有从所述基板突出以形成一对突起的相对端部; 由导电膜形成的至少一个线圈，以在衬底的一个主表面上提供电路图案，每个线圈具有螺旋形状并围绕连接器的至少一个突起中的对应的一个; 以及一对引线，其电连接到由线圈形成的电路图案的相对端。 还公开了包括该薄膜磁性电路板和具有磁隙的磁芯元件的磁头。
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公开(公告)号：US5390062A
公开(公告)日：1995-02-14
申请号：US212398
申请日：1994-03-14
申请人： Soichiro Matsuzawa , Yayo Akai , Nobuhiro Terada
发明人： Soichiro Matsuzawa , Yayo Akai , Nobuhiro Terada
摘要： A thin-film magnetic circuit board is disclosed which includes: a first and a second substrate formed of a magnetic material; a non-magnetic layer for bonding these substrates to each other; at least one coil formed from an electrically conductive film to provide a circuit pattern, each coil having a spiral shape and surrounding a predetermined blank portion of at least one of the first and second substrates; a pair of leads which are electrically connected to opposite ends of the circuit pattern formed by the coil(s); and a connector formed from a magnetic film, for magnetically connecting the first and second substrates. The connector is fixed to the predetermined blank portion of the first and/or second substrates. Also is disclosed a magnetic head including this thin-film magnetic circuit board.
摘要翻译： 公开了一种薄膜磁路板，其包括：由磁性材料形成的第一和第二基板; 用于将这些基板彼此粘合的非磁性层; 由导电膜形成的至少一个线圈以提供电路图案，每个线圈具有螺旋形状并围绕所述第一和第二基板中的至少一个的预定空白部分; 一对引线，其电连接到由线圈形成的电路图案的相对端; 以及由磁性膜形成的用于磁性连接第一和第二基板的连接器。 连接器固定到第一和/或第二基板的预定空白部分。 还公开了一种包括该薄膜磁性电路板的磁头。
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9.发明授权
公开(公告)号：US5298113A
公开(公告)日：1994-03-29
申请号：US18436
申请日：1993-02-16
申请人： Soichiro Matsuzawa , Yayo Akai
发明人： Soichiro Matsuzawa , Yayo Akai
CPC分类号： G11B5/1871 , Y10T29/49032
摘要： A method of producing a magnetic head core having a coil-winding groove around which an annular magnetic path is formed, and a magnetic gap intersecting the magnetic path, and a track having a predetermined track width and extending in a direction perpendicular to the magnetic gap, the magnetic gap and track being formed in a medium-sliding surface of the head core. The method includes the steps of: forming a track precursor in a surface of a core body which gives the medium-sliding surface of the head core, the track precursor having a larger width than a predetermined track width, and extending across the magnetic gap in a longitudinal direction of the core body; and pressing a shearing tool against the track precursor, and applying a force to the shearing tool to thereby remove by shearing at least one of widthwise opposite portions of the track precursor adjacent to the magnetic gap, so as to form the track having a predetermined track width in the vicinity of the magnetic gap.
摘要翻译： 一种制造磁头芯的方法，所述磁头芯具有围绕其形成环形磁路的线圈绕组槽和与磁路相交的磁隙，以及具有预定轨道宽度并沿垂直于磁隙的方向延伸的轨道 磁芯和磁道形成在磁头磁芯的中滑动表面上。 该方法包括以下步骤：在芯体的表面中形成轨道前体，其给出头芯的介质滑动表面，轨道前体具有比预定轨道宽度更大的宽度，并延伸穿过磁隙的 芯体的纵向方向; 并且将剪切工具压靠在轨道前体上，并且向剪切工具施加力，从而通过剪切与磁隙相邻的轨道前体的宽度方向相对的部分中的至少一个来去除，以便形成具有预定轨迹的轨道 磁隙附近的宽度。
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10.发明授权
公开(公告)号：US5107382A
公开(公告)日：1992-04-21
申请号：US616085
申请日：1990-11-20
CPC分类号： G11B5/1272 , G11B5/1871 , G11B5/193 , Y10T29/49041 , Y10T29/49052 , Y10T29/49055
摘要： A head core slider for a rigid magnetic disk drive, including a slider body, a track portion, a yoke portion and a narrow stepped portion. The slider body has two spaced-apart parallel air bearing portions, and the track portion is formed integrally with at least one of the bearing portions, so as to extend from one end of the bearing portion in the direction of length of the bearing portion. The track portion has the same height as the bearing portion, and a width smaller than that of the bearing portion. The yoke portion is formed integrally with the track portion, so as to extend from one end of the track portion remote from the bearing portion, and has a protrusion of the same height as the track portion. The width of the protrusion is smaller than that of the bearing portion and larger than that of the track portion. The stepped portion is formed so as to surround at least the track portion and the protrusion of the yoke portion, and has a surface which is spaced apart from top surfaces of the track portion and the protrusion by a distance nearly equal to the predetermined height. The bearing, track and stepped portions and the protrusion are formed by etching the surfaces of two bonded ferrite blocks, through an etching mask pattern corresponding to the desired configuration to be formed.
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