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1. 发明授权

US5043842A Magnetic head core with special gap structure 失效
标题翻译：磁头芯具有特殊的间隙结构
公开(公告)号：US5043842A
公开(公告)日：1991-08-27
申请号：US593802
申请日：1990-10-05
申请人： Nobuhiro Terada , Masataka Shimizu , Soichiro Matsuzawa
发明人： Nobuhiro Terada , Masataka Shimizu , Soichiro Matsuzawa
IPC分类号： G11B5/133 , G11B5/127 , G11B5/187 , G11B5/193 , G11B5/23
CPC分类号： G11B5/1871 , G11B5/193 , Y10T29/49052 , Y10T29/49057
摘要： A magnetic head core including two ferrite blocks which are bonded together so as to form a magnetic path and which includes respective two protrusions protruding from the opposed surfaces thereof. The protrusions have opposed end faces cooperating with each other to define a magnetic gap therebetween. The opposed surfaces of the two ferrite blocks cooperate with the two protrusions, to define two cutouts formed on opposite sides of the magnetic gap, such that a spacing provided between the opposed surfaces by each cutout is larger than an amount of the magnetic gap. The cutouts define an effective width of a track of the head core in which the magnetic gap is open. Each protrusion has two side surfaces inclined at an angle of 25.degree.-75.degree. with respect to its end face. Each cutout is defined by at least one pair of opposed ridges which are formed on the opposed surfaces of the two ferrite blocks, respectively, such that each ridge is disposed on each side of a corresponding one of the two protrusions.
摘要翻译：一种磁头芯，包括两个铁素体块，它们结合在一起以形成磁路，并且包括从其相对表面突出的相应的两个突起。突起部具有相对的端面，彼此配合以在它们之间形成磁隙。两个铁氧体块的相对表面与两个突起配合，以限定形成在磁隙的相对侧上的两个切口，使得由每个切口设置在相对表面之间的间隔大于磁隙的量。切口限定磁芯的轨道的有效宽度，其中磁隙打开。每个突起具有相对于其端面以25°-75°的角度倾斜的两个侧表面。每个切口由分别形成在两个铁氧体块的相对表面上的至少一对相对的脊限定，使得每个脊设置在两个突起中的对应的一个的每一侧上。

2. 发明授权

US5003688A Method of producing a magnetic head core having track-width defining cut outs formed on opposite side of a magnetic gap 失效
标题翻译：一种制造磁头芯的方法，该磁头芯具有形成在磁隙的相对侧上的轨道宽度限定的切口
公开(公告)号：US5003688A
公开(公告)日：1991-04-02
申请号：US352291
申请日：1989-05-15
申请人： Nobuhiro Terada , Masataka Shimizu , Soichiro Matsuzawa
发明人： Nobuhiro Terada , Masataka Shimizu , Soichiro Matsuzawa
IPC分类号： G11B5/133 , G11B5/127 , G11B5/187 , G11B5/193 , G11B5/23
CPC分类号： G11B5/1871 , G11B5/193 , Y10T29/49052 , Y10T29/49057
摘要： A magnetic head core including two ferrite blocks which are bonded together so as to form a magnetic path and which includes respective two protrusions protruding from the opposed surfaces thereof. The protrusions have opposed end faces cooperating with each other to define a magnetic gap therebetween. The opposed surfaces of the two ferrite blocks cooperate with the two protrusions, to define two cutouts formed on opposite sides of the magnetic gap, such that a spacing provided between the opposed surfaces by each cutout is larger than an amount of the magnetic gap. The cutouts define an effective width of a track of the head core in which the magnetic gap is open. Each protrusion has two side surfaces inclined at an angle of 25.degree.-75.degree. with respect to its end face. Each cutout is defined by at least one pair of opposed ridges which are formed on the opposed surfaces of the two ferrite blocks, respectively, such that each ridge is disposed on each side of a corresponding one of the two protrusions.
摘要翻译：一种磁头芯，包括两个铁素体块，它们结合在一起以形成磁路，并且包括从其相对表面突出的相应的两个突起。突起部具有相对的端面，彼此配合以在它们之间形成磁隙。两个铁氧体块的相对表面与两个突起配合，以限定形成在磁隙的相对侧上的两个切口，使得由每个切口设置在相对表面之间的间隔大于磁隙的量。切口限定磁芯的轨道的有效宽度，其中磁隙打开。每个突起具有相对于其端面以25°-75°的角度倾斜的两个侧表面。每个切口由分别形成在两个铁氧体块的相对表面上的至少一对相对的脊限定，使得每个脊设置在两个突起中的对应的一个的每一侧上。

3. 发明授权

US5297330A Method of producing core slider for rigid magnetic disc drive 失效
标题翻译：制造刚性磁盘驱动器的磁芯滑块的方法
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
IPC分类号： G11B5/10 , G11B5/105 , G11B5/193 , G11B5/60 , G11B21/21 , G11B5/42
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。

4. 发明授权

US5522126A Method of manufacturing a composite magnetic head 失效
标题翻译：复合磁头制造方法
公开(公告)号：US5522126A
公开(公告)日：1996-06-04
申请号：US213528
申请日：1994-03-16
申请人： Tetsuo Miwa , Masatomo Yamauchi , Soichiro Matsuzawa , Nobuhiro Terada
发明人： Tetsuo Miwa , Masatomo Yamauchi , Soichiro Matsuzawa , Nobuhiro Terada
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。

5. 发明授权

US5285342A Core chip for magnetic head core slider, having marker indicating grinding depth to establish nominal depth of magnetic gap 失效
标题翻译：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
申请人： Soichiro Matsuzawa , Nobuhiro Terada
发明人： Soichiro Matsuzawa , Nobuhiro Terada
IPC分类号： G11B5/187 , G11B5/60 , G11B5/127
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。

6. 发明授权

US5388325A Process for fabricating a magnetic head core slider 失效
标题翻译：制造磁头芯片滑块的工艺
公开(公告)号：US5388325A
公开(公告)日：1995-02-14
申请号：US141649
申请日：1993-10-27
申请人： Soichiro Matsuzawa , Nobuhiro Terada
发明人： Soichiro Matsuzawa , Nobuhiro Terada
IPC分类号： G11B5/187 , G11B5/60 , G11B5/42
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。两个芯构件配合以提供限定线圈绕组孔的一侧上的磁隙的间隙形成部分，以及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。

7. 发明授权

US5396389A Thin-film magnetic circuit board and magnetic head using the same 失效
标题翻译：薄膜磁路板和磁头使用相同
公开(公告)号：US5396389A
公开(公告)日：1995-03-07
申请号：US885447
申请日：1992-05-20
申请人： Nobuhiro Terada , Soichiro Matsuzawa
发明人： Nobuhiro Terada , Soichiro Matsuzawa
IPC分类号： G11B5/31 , G11B5/127 , G11B5/17 , G11B5/147
CPC分类号： G11B5/17 , G11B5/127
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。

8. 发明授权

US5390062A Thin-film magnetic circuit board and magnetic head using the same 失效
标题翻译：薄膜磁路板和磁头使用相同
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
IPC分类号： G11B5/31 , G11B5/127 , G11B5/17 , G11B5/147
CPC分类号： G11B5/127 , G11B5/17
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。

9. 发明授权

US5107382A Head core slider having an air bearing surface of a particular configuration 失效
标题翻译：具有特定配置的空气轴承表面的头芯滑块
公开(公告)号：US5107382A
公开(公告)日：1992-04-21
申请号：US616085
申请日：1990-11-20
申请人： Soichiro Matsuzawa , Fuminori Takeya , Nobuhiro Terada , Michael I. Aronoff
发明人： Soichiro Matsuzawa , Fuminori Takeya , Nobuhiro Terada , Michael I. Aronoff
IPC分类号： G11B5/127 , G11B5/187 , G11B5/193 , G11B5/596 , G11B5/60
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.

10. 发明授权

US5020213A Method of producing a head core slider 失效
标题翻译：制造磁头芯片滑块的方法
公开(公告)号：US5020213A
公开(公告)日：1991-06-04
申请号：US450566
申请日：1989-12-14
申请人： Michael I. Aronoff , Soichiro Matsuzawa , Nobuhiro Terada
发明人： Michael I. Aronoff , Soichiro Matsuzawa , Nobuhiro Terada
IPC分类号： G11B5/187 , G11B5/23 , G11B5/29 , G11B5/48 , G11B5/60
CPC分类号： G11B5/6005 , G11B5/1871 , G11B5/23 , G11B5/4886 , Y10T29/49041 , Y10T29/49052 , Y10T29/49055
摘要： Method for producing a head core slider for a rigid magnetic disk drive, including a ferrite slider body having a pair of air bearing portions which have a predetermined height and are spaced apart from each other in a transverse direction perpendicular to a direction of extension thereof, and further including a pair of ferrite yoke portions formed integrally with the slider body. The yoke portions cooperate with the slider body to form a first and a second closed magnetic path and define therebetween a first and a second magnetic gap. The slider body and the yoke portions cooperate to provide a first and a second track portion in which the first and second magnetic gaps are open, respectively. The first and second track portions have sliding surfaces which have the same height as the air bearing portions. The first track portion is used exclusively for an information writing operation, while the second track portion is used exclusively for an information reading operation. Where the first and second track portions have a same width, the first and second magnetic gaps have different sizes. Where the two magnetic gaps have a same size, the two track portions have different widths. Alternatively, the two track portions have different widths while the two magnetic gaps have different sizes.

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