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1. 发明授权

US4948460A Method of producing head core slider for rigid magnetic disk drive, utilizing laser-induced etching 失效
标题翻译：用于刚性磁盘驱动器的磁芯滑块的制造方法，利用激光诱导蚀刻
公开(公告)号：US4948460A
公开(公告)日：1990-08-14
申请号：US409946
申请日：1989-09-20
申请人： Hideto Sandaiji , Fuminori Takeya , Nobuhiro Terada
发明人： Hideto Sandaiji , Fuminori Takeya , Nobuhiro Terada
IPC分类号： B23K26/36 , C04B41/53 , C04B41/91 , G11B5/187 , G11B5/60
CPC分类号： C04B41/009 , B23K26/362 , C04B41/5338 , C04B41/91 , G11B5/1871 , G11B5/1878 , G11B5/6005 , Y10T29/49041 , Y10T29/49052 , Y10T29/49055
摘要： A method of producing a magnetic head core slider including integrally formed slider body and yoke portion. The slider body has two parallel air bearing portions, while the yoke portion has a track portion. The slider body and yoke portion cooperatively provide a magnetic gap open in the track portion. The core slider is prepared from an integral ferrite bar consisting of a first and a second ferrite block which give the slider body and the yoke portion, respectively. Track-defining grooves are formed by laser-induced etching in one surface of the bar, such that the grooves extend across the interface of the bonded two blocks. The grooves define the width of the track portion. An etching mask is applied to cover portions of the bar corresponding to the air bearing portions and the track portion. The masked surface of the bar is chemically etched to form the air bearing portions, and a track protrusion including the track portion, such that the air bearing portion and the track protrusion have the same height.
摘要翻译：一种制造包括一体形成的滑块体和磁轭部分的磁头磁芯滑块的方法。滑块体具有两个平行的空气轴承部分，而轭部具有轨道部分。滑块体和轭部协作地在磁道部分中提供开放的磁隙。芯滑块由分别给予滑块体和轭部的第一铁氧体块和第二铁氧体块组成的铁素体棒制成。通过在棒的一个表面中的激光诱导蚀刻形成轨道限定槽，使得槽延伸穿过结合的两个块的界面。凹槽限定轨道部分的宽度。施加蚀刻掩模以覆盖对应于空气轴承部分和轨道部分的条的部分。棒的被掩模的表面被化学蚀刻以形成空气轴承部分，以及包括轨道部分的轨道突起，使得空气轴承部分和轨道突起具有相同的高度。

2. 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.

3. 发明授权

US5138508A Magnetic head core 失效
标题翻译：磁头芯
公开(公告)号：US5138508A
公开(公告)日：1992-08-11
申请号：US655150
申请日：1991-02-14
申请人： Soichiro Matsuzawa , Fuminori Takeya , Nobuhiro Terada
发明人： Soichiro Matsuzawa , Fuminori Takeya , Nobuhiro Terada
IPC分类号： G11B5/187 , G11B5/265
CPC分类号： G11B5/1871 , G11B5/2651 , Y10T29/49052 , Y10T29/49057
摘要： A composite magnetic head core with a writing/reading track and two erasing tracks, including a first ferrite block, and a second and a third ferrite block bonded to opposite surfaces of the first block interposed therebetween. The opposite abutting surfaces of the first block have respective first and second recessed portions, and a first rectangular protrusion and two second rectangular protrusions which protrude from the first and second recessed portions, respectively. The first protrusion is positioned between the two second protrusions in a direction of width of the writing/reading and erasing tracks. The first protrusion cooperates with the second block, to define a writing/reading magnetic gap of the writing/reading track, while the second protrusions cooperate with the third block, to define two erasing magnetic gaps of the erasing tracks. The first protrusion has a width defining the width of the writing/reading track, and a longitudinal end defining a depth of the writing/reading magnetic gap. Similarly, each second protrusion has a width defining the width of the erasing tracks, and a longitudinal end defining a depth of the erasing magnetic gaps. The protrusions are formed by etching the opposite surfaces of the first block through appropriate etching masks.
摘要翻译：具有写入/读取轨道和两个擦除轨道的复合磁头芯，包括第一铁氧体块，以及粘结到插入其间的第一块的相对表面的第二和第三铁氧体块。第一块的相对的邻接表面具有相应的第一和第二凹部，以及分别从第一凹部和第二凹部突出的第一矩形突起和第二矩形突起。第一突起沿着写入/读取和擦除轨迹的宽度的方向位于两个第二突起之间。第一突起与第二块配合以限定写入/读取轨迹的写入/读取磁隙，而第二突起与第三块配合，以限定擦除轨迹的两个擦除磁隙。第一突起具有限定写入/读取轨迹的宽度的宽度，以及限定写入/读取磁隙的深度的纵向端。类似地，每个第二突起具有限定擦除轨迹的宽度的宽度和限定擦除磁隙的深度的纵向端。通过适当的蚀刻掩模蚀刻第一块的相对表面来形成突起。

4. 发明授权

US5014414A Method for producing a magnetic head core 失效
标题翻译：磁头芯的制造方法
公开(公告)号：US5014414A
公开(公告)日：1991-05-14
申请号：US337966
申请日：1989-04-12
申请人： Soichiro Matsuzawa , Fuminori Takeya , Nobuhiro Terada
发明人： Soichiro Matsuzawa , Fuminori Takeya , Nobuhiro Terada
IPC分类号： G11B5/133 , G11B5/187 , G11B5/265
CPC分类号： G11B5/1871 , G11B5/2651 , Y10T29/49052 , Y10T29/49055
摘要： A composite magnetic head core with a writing/reading track and two erasing tracks, including a first ferrite block, and a second and a third ferrite block bonded to opposite surfaces of the first block interposed therebetween. The opposite abutting surfaces of the first block have respective first and second recessed portions, and a first rectangular protrusion and two second rectangular protrusions which protrude from the first and second recessed portions, respectively. The first protrusion is positioned between the two second protrusions in a direction of width of the writing/reading and erasing tracks. The first protrusion cooperates with the second block, to define a writing/reading magnetic gap of the writing/reading track, while the second protrusions cooperate with the third block, to define two erasing magnetic gaps of the erasing tracks. The first protrusion has a width defining the width of the writing/reading track, and a longitudinal end defining a depth of the writing/reading magnetic gap. Similarly, each second protrusion has a width defining the width of the erasing tracks, and a longitudinal end defining a depth of the erasing magnetic gaps. The protrusions are formed by etching the opposite surfaces of the first block through appropriate etching masks.
摘要翻译：具有写入/读取轨道和两个擦除轨迹的复合磁头磁芯，包括第一铁氧体块，以及第二和第三铁氧体块，其结合到插入其间的第一块的相对表面。第一块的相对的邻接表面具有相应的第一和第二凹部，以及分别从第一凹部和第二凹部突出的第一矩形突起和第二矩形突起。第一突起沿着写入/读取和擦除轨迹的宽度的方向位于两个第二突起之间。第一突起与第二块配合以限定写入/读取轨迹的写入/读取磁隙，而第二突起与第三块配合，以限定擦除轨迹的两个擦除磁隙。第一突起具有限定写入/读取轨迹的宽度的宽度，以及限定写入/读取磁隙的深度的纵向端。类似地，每个第二突起具有限定擦除轨迹的宽度的宽度和限定擦除磁隙的深度的纵向端。通过适当的蚀刻掩模蚀刻第一块的相对表面来形成突起。

5. 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。

6. 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。

7. 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。

8. 发明授权

US4896235A Magnetic transducer head utilizing magnetoresistance effect 失效
标题翻译：磁传感器头采用磁阻效应
公开(公告)号：US4896235A
公开(公告)日：1990-01-23
申请号：US298299
申请日：1989-01-17
申请人： Hiroshi Takino , Shigeyoshi Imakoshi, deceased , Nobuhiro Terada , Norio Saito , Hideo Suyama , Kenichiro Tsunewaki
发明人： Hiroshi Takino , Shigeyoshi Imakoshi, deceased , Nobuhiro Terada , Norio Saito , Hideo Suyama , Kenichiro Tsunewaki
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/3925 , G11B5/3903 , G11B5/3941 , G11B5/3954 , G11B5/3961 , G11B5/3964 , G11B5/398 , G11B5/399 , G11B5/3156
摘要： A MR magnetic head with a sensing element which comprises a plurality of superposed magnetic layers which have a magnetoresistance effect in at least one and a nonmagnetic intermediate layer sandwiched between the magnetic layers, and a sensing current is fed so as to flow in the sensing element in the same direction as a signal magnetic field which is applied to the element. Each of the magnetic layers is formed so as to have an easy axis of magnetization which is substantially perpendicular to the signal magnetic field or to have an isotropic magnetic characteristic in the magnetic film plane, which eliminates Barkhausen noise.
摘要翻译：一种具有感测元件的MR磁头，其包括在夹在所述磁性层之间的至少一个磁阻效应和非磁性中间层中的多个重叠磁性层，并且馈送感测电流以在所述感测元件在与施加到元件的信号磁场相同的方向上。每个磁性层形成为具有基本上垂直于信号磁场的易磁化轴或者在磁性膜平面中具有各向同性磁特性，这消除了巴克豪森噪声。

9. 发明授权

US5981375A Method of manufacturing a semiconductor device 失效
标题翻译：制造半导体器件的方法
公开(公告)号：US5981375A
公开(公告)日：1999-11-09
申请号：US890987
申请日：1997-07-10
申请人： Nobuhiro Terada , Michitaka Tominaga
发明人： Nobuhiro Terada , Michitaka Tominaga
IPC分类号： H01L21/316 , H01L21/768 , H01L21/283 , H01L21/473
CPC分类号： H01L21/02164 , H01L21/022 , H01L21/02271 , H01L21/02274 , H01L21/31612 , H01L21/76801
摘要： A method of manufacturing a semiconductor device includes forming an interconnection layer patterned to predetermined shapes on a semiconductor base, forming a plasma TEOS film as a first insulating layer on the surface of the interconnection layer while reducing radio frequency (RF) power, and forming an ozone TEOS film as a second insulating layer on the first insulating layer.
摘要翻译：一种制造半导体器件的方法包括在半导体基底上形成图案化成预定形状的互连层，在互连层的表面上形成等离子体TEOS膜作为第一绝缘层，同时降低射频（RF）功率，并形成臭氧TEOS膜作为第一绝缘层上的第二绝缘层。

10. 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。

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