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1. 发明授权

US5717630A Magnetic memory device 失效
标题翻译：磁存储器件
公开(公告)号：US5717630A
公开(公告)日：1998-02-10
申请号：US630993
申请日：1996-04-12
申请人： Takao Koshikawa , Yukinori Ikegawa , Hiroshi Maeda , Yoshinori Ohtsuka , Takahiro Imamura , Yoshifumi Mizoshita
发明人： Takao Koshikawa , Yukinori Ikegawa , Hiroshi Maeda , Yoshinori Ohtsuka , Takahiro Imamura , Yoshifumi Mizoshita
IPC分类号： G01R33/09 , G01Q60/10 , G01Q80/00 , G01R33/07 , G01R33/10 , G11B5/00 , G11B5/127 , G11B5/33 , G11B5/35 , G11B5/37 , G11B5/39 , G11B5/48 , G11B5/54 , G11B9/00 , H01L43/08
CPC分类号： G11B5/00 , G11B5/1278 , G11B5/332 , G11B5/3903 , G11B5/3925 , G11B5/3967 , G11B5/398 , G11B5/48 , G11B5/54 , B82Y10/00 , G11B9/1436 , Y10S977/865
摘要： A magnetic memory device comprises: a vertically magnetic recording medium; a probe formed of an electrically conductive as well as soft-magnetic material, a pointed end of the probe faces the magnetically recording medium across a gap; a magnetic flux detecting element for detecting a magnetic flux caught by the probe, where the magnetic flux is from a data recorded on the magnetically recording medium; a vertical controller for keeping the gap constant by the use of a tunnel current flowing via said gap into the probe while a voltage is applied across the gap; and a scan mechanism for scanning the probe along the magnetically recording medium. The magnetic memory device may further comprises an exciting coil for magnetizing the probe so as to write a data in the magnetically recording medium. The probe may be recessed from the scanning position when the probe is not in operation.
摘要翻译：磁存储器件包括：垂直磁记录介质; 由导电以及软磁材料形成的探针，探针的尖端通过间隙面向磁记录介质; 磁通检测元件，用于检测由所述探针捕获的磁通量，其中所述磁通量来自记录在所述磁记录介质上的数据; 垂直控制器，用于通过在跨过间隙施加电压的情况下通过使用经由所述间隙流入探针的隧道电流来保持间隙恒定; 以及用于沿着磁记录介质扫描探针的扫描机构。磁存储器件还可以包括用于磁化探针的激励线圈，以便将数据写入磁记录介质。当探头不工作时，探头可能会从扫描位置凹陷。

2. 发明授权

US06181531B2 Thin film magnetic head slider and electrostatic actuator for driving a head element thereof 失效
标题翻译：薄膜磁头滑块和用于驱动其头元件的静电致动器
公开(公告)号：US06181531B2
公开(公告)日：2001-01-30
申请号：US09189301
申请日：1998-11-10
申请人： Takao Koshikawa , Hiroshi Maeda , Takahiro Imamura
发明人： Takao Koshikawa , Hiroshi Maeda , Takahiro Imamura
IPC分类号： G11B2120
CPC分类号： G11B5/6005 , G11B5/488 , G11B5/54 , H02N1/008 , Y10T29/49041 , Y10T29/49812
摘要： A thin film magnetic head slider has a media opposing surface which is adapted to be opposed to a recording medium, and includes a sacrificial layer, on a substratum that has a surface for forming the media opposing surface having at least one rail. A tracking mechanism or loading/unloading mechanism can be provided on the slider. An electrostatic actuator suitable for driving such a mechanism includes a stationary section having a plurality of teeth parallel to each other, a movable section having a plurality of teeth parallel to the teeth of the stationary section, a support spring for supporting the movable section so that the movable section can be moved with respect to the stationary section in the tooth width direction. A drive force generator moves the movable section to a position at which an electrostatic attraction force in the tooth width direction generated when a voltage is impresses between the teeth of the stationary section and those of the movable section, is balanced with the elastic force of the head suspension.
摘要翻译：薄膜磁头滑块具有适于与记录介质相对的介质相对表面，并且在具有用于形成具有至少一个轨道的介质相对表面的表面的基底上包括牺牲层。可以在滑块上提供跟踪机构或加载/卸载机构。适于驱动这种机构的静电致动器包括具有彼此平行的多个齿的固定部分，具有平行于固定部分的齿的多个齿的可动部分，用于支撑可动部分的支撑弹簧，使得可移动部分能够相对于固定部分在齿宽度方向上移动。驱动力发生器将可动部移动到在静止部的齿和可动部的齿之间施加电压时产生的齿宽方向的静电引力的位置，与静止部的齿的弹力头部悬挂。

3. 发明授权

US5920978A Method of making a thin film magnetic slider 失效
标题翻译：制造薄膜磁性滑块的方法
公开(公告)号：US5920978A
公开(公告)日：1999-07-13
申请号：US603257
申请日：1996-02-20
申请人： Takao Koshikawa , Hiroshi Maeda , Takahiro Imamura
发明人： Takao Koshikawa , Hiroshi Maeda , Takahiro Imamura
IPC分类号： G11B5/48 , G11B5/54 , G11B5/60 , H02N1/00 , G11B5/42
CPC分类号： G11B5/6005 , G11B5/488 , G11B5/54 , H02N1/008 , Y10T29/49041 , Y10T29/49812
摘要： A method for manufacturing a thin film magnetic head slider having a media opposing surface which is adapted to be opposed to a recording medium, includes the steps of forming on a sacrificial layer, on a substrate, in such a manner that the sacrificial layer has a surface including steps for forming the media opposing surface having at least one rail, providing a slider material on the surface of the sacrificial layer, and removing the sacrificial layer and the substrate from the slider. A tracking mechanism or loading/unloading mechanism can be provided on the slider. An electrostatic actuator suitable for driving such a mechanism includes a stationary section having a plurality of teeth parallel to each other, a movable section having a plurality of teeth parallel to the teeth of the stationary section, a support spring for supporting the movable section so that the movable section can be moved with respect to the stationary section in the tooth width direction. A drive force generator moves the movable section to a position at which an electrostatic attraction force in the tooth width direction generated when a voltage is impressed between the teeth of the stationary section and those of the movable section, is balanced with the elastic force of the head suspension.
摘要翻译：一种用于制造具有适于与记录介质相对的介质相对表面的薄膜磁头滑块的方法，包括以下步骤：在牺牲层上在基板上形成牺牲层，使得牺牲层具有表面包括用于形成具有至少一个导轨的介质相对表面的步骤，在牺牲层的表面上提供滑块材料，以及从滑块移除牺牲层和基板。可以在滑块上提供跟踪机构或加载/卸载机构。适于驱动这种机构的静电致动器包括具有彼此平行的多个齿的固定部分，具有平行于固定部分的齿的多个齿的可动部分，用于支撑可动部分的支撑弹簧，使得可移动部分能够相对于固定部分在齿宽度方向上移动。驱动力发生器将可动部移动到在固定部的齿与可动部的齿之间施加电压时产生的齿宽方向的静电吸引力的位置与所述静止部的齿的弹力相平衡的位置头部悬挂。

4. 发明授权

US06594119B1 Thin film magnetic head slider and electrostatic actuator for driving a head element thereof 失效
标题翻译：薄膜磁头滑块和用于驱动其头元件的静电致动器
公开(公告)号：US06594119B1
公开(公告)日：2003-07-15
申请号：US09670748
申请日：2000-09-27
申请人： Takao Koshikawa , Hiroshi Maeda , Takahiro Imamura
发明人： Takao Koshikawa , Hiroshi Maeda , Takahiro Imamura
IPC分类号： G11B2124
CPC分类号： G11B5/6005 , G11B5/488 , G11B5/54 , H02N1/008 , Y10T29/49041 , Y10T29/49812
摘要： A thin film magnetic head has a media opposing surface which is adapted to be opposed to a recording medium, and includes a sacrificial layer, on a substratum that has a surface for forming the media opposing surface having at least one rail. A tracking mechanism or loading/unloading mechanism can be provided on the slider. An electrostatic actuator suitable for driving such a mechanism includes a stationary section having a plurality of teeth parallel to each other, a movable section having a plurality of teeth parallel to the teeth of the stationary section, a support spring for supporting the movable section so that the movable section can be moved with respect to the stationary section in the tooth width direction. A drive force generator moves the movable section to a position at which an electrostatic attraction force in the tooth width direction generated when a voltage is impresses between the teeth of the stationary section and those of the movable section, is balanced with the elastic force of the head suspension.
摘要翻译：薄膜磁头具有适于与记录介质相对的介质相对表面，并且在具有用于形成具有至少一个轨道的介质相对表面的表面的基底上包括牺牲层。可以在滑块上提供跟踪机构或加载/卸载机构。适于驱动这种机构的静电致动器包括具有彼此平行的多个齿的固定部分，具有平行于固定部分的齿的多个齿的可动部分，用于支撑可动部分的支撑弹簧，使得可移动部分能够相对于固定部分在齿宽度方向上移动。驱动力发生器将可动部移动到在静止部的齿和可动部的齿之间施加电压时产生的齿宽方向的静电引力的位置，与静止部的齿的弹力头部悬挂。

5. 发明授权

US6055139A Magnetic recording medium and method of forming the same and magnetic disk drive 失效
标题翻译：磁记录介质及其形成方法及磁盘驱动器
公开(公告)号：US6055139A
公开(公告)日：2000-04-25
申请号：US762207
申请日：1996-12-09
申请人： Yoshinori Ohtsuka , Yoshifumi Mizoshita , Takao Koshikawa , Hiroshi Maeda
发明人： Yoshinori Ohtsuka , Yoshifumi Mizoshita , Takao Koshikawa , Hiroshi Maeda
IPC分类号： G11B5/596 , G11B5/66 , G11B5/82 , G11B5/855 , G11B5/74 , G11B23/00
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/59688 , G11B5/66 , G11B5/743 , G11B5/82 , G11B5/855
摘要： A magnetic recording medium having magnetic patterns into which servo information are written and a magnetic recording layer into which data are written comprises a nonmagnetic substrate, a magnetic recording layer formed on the substrate, and a hard magnetic layer contacted the magnetic recording layer within servo signal recording regions on the substrate and constituting servo patterns of film thicknesses of which are varied in the track length direction. Thereby, more precise reading of the servo signals by the magnetic head is assured and a surface of the magnetic recording medium can be flatted.
摘要翻译：具有写入伺服信息的磁图案的磁记录介质和写入数据的磁记录层包括非磁性基板，形成在基板上的磁记录层，以及与伺服信号中的磁记录层接触的硬磁层记录在基板上的区域，并且构成其厚度在光纤长度方向上变化的伺服图案。因此，确保了通过磁头更精确地读取伺服信号，并且可以使磁记录介质的表面平坦化。

6. 发明授权

US5793560A Storage device having vibratory head 失效
标题翻译：具有振动头的存储装置
公开(公告)号：US5793560A
公开(公告)日：1998-08-11
申请号：US358402
申请日：1994-12-19
申请人： Yoshifumi Mizoshita , Hiroshi Maeda , Takao Koshikawa , Takayuki Yamamoto
发明人： Yoshifumi Mizoshita , Hiroshi Maeda , Takao Koshikawa , Takayuki Yamamoto
IPC分类号： G11B5/008 , G11B5/012 , G11B5/48 , G11B5/53 , G11B5/54 , G11B5/55 , G11B25/04 , H02K7/14 , H02N1/00 , G11B21/02
CPC分类号： G11B5/5521 , G11B25/04 , G11B5/00804 , G11B5/012 , G11B5/488 , G11B5/53 , G11B5/54 , G11B5/55 , G11B5/553 , H02K7/14 , H02N1/004 , H02N1/008 , H02K99/00
摘要： A storage device includes a substrate, a magnetic storage medium provided on the substrate, information being magnetically stored in the magnetic storage medium, a head unit, and a reciprocating mechanism provided on the substrate, the reciprocating mechanism causing the head unit to reciprocate in a plane parallel to a surface of the magnetic storage medium, wherein, while the head unit is being moved by the reciprocating mechanism, information is recorded in or reproduced from the magnetic storage medium via the head unit.
摘要翻译：存储装置包括基板，设置在基板上的磁存储介质，磁存储在磁存储介质中的信息，磁头单元和设置在基板上的往复机构，所述往复机构使磁头单元在平行于磁存储介质的表面的平面，其中，当头单元通过往复机构移动时，信息经由头单元记录在磁存储介质中或从磁存储介质再现。

7. 发明授权

US06324032B1 Magnetic recording medium having linear or curved tracking servo patterns formed obliquely relative to direction of tracks, and magnetic recording apparatus using the same 有权
标题翻译：具有相对于轨道方向倾斜地形成的线性或弯曲跟踪伺服图案的磁记录介质，以及使用其的磁记录装置
公开(公告)号：US06324032B1
公开(公告)日：2001-11-27
申请号：US09307458
申请日：1999-05-07
申请人： Yoshinori Ohtsuka , Yoshifumi Mizoshita , Takao Koshikawa , Hiroshi Maeda
发明人： Yoshinori Ohtsuka , Yoshifumi Mizoshita , Takao Koshikawa , Hiroshi Maeda
IPC分类号： G11B574
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/59688 , G11B5/66 , G11B5/743 , G11B5/82 , G11B5/855
摘要： A magnetic recording medium having magnetic patterns into which servo information are written and a magnetic recording layer into which data are written comprises a nonmagnetic substrate, a magnetic recording layer formed on the substrate, and a hard magnetic layer contacting the magnetic recording layer within servo signal recording regions on the substrate and constituting servo patterns of film thicknesses of which are varied in the track length direction. Thereby, more precise reading of the servo signals by the magnetic head is assured and a surface of the magnetic recording medium can be flattend.
摘要翻译：具有写入伺服信息的磁图案的磁记录介质和写入数据的磁记录层包括非磁性基板，形成在基板上的磁记录层和在伺服信号内与磁记录层接触的硬磁层记录在基板上的区域，并且构成其厚度在光纤长度方向上变化的伺服图案。因此，确保了通过磁头更精确地读取伺服信号，并且磁记录介质的表面可以变平。

8. 发明授权

US5400192A Storage device having vibratory head 失效
标题翻译：具有振动头的存储装置
公开(公告)号：US5400192A
公开(公告)日：1995-03-21
申请号：US945455
申请日：1992-09-16
申请人： Yoshifumi Mizoshita , Hiroshi Maeda , Takao Koshikawa , Takayuki Yamamoto
发明人： Yoshifumi Mizoshita , Hiroshi Maeda , Takao Koshikawa , Takayuki Yamamoto
IPC分类号： G11B5/008 , G11B5/012 , G11B5/48 , G11B5/53 , G11B5/54 , G11B5/55 , G11B25/04 , H02K7/14 , H02N1/00 , G11B21/02 , G11B5/596
CPC分类号： G11B5/5521 , G11B25/04 , G11B5/00804 , G11B5/012 , G11B5/488 , G11B5/53 , G11B5/54 , G11B5/55 , G11B5/553 , H02K7/14 , H02N1/004 , H02N1/008 , H02K99/00
摘要： A storage device includes a substrate, a magnetic storage medium provided on the substrate, information being magnetically stored in the magnetic storage medium, a head unit, and a reciprocating mechanism provided on the substrate, the reciprocating mechanism causing the head unit to reciprocate in a plane parallel to a surface of the magnetic storage medium, wherein, while the head unit is being moved by the reciprocating mechanism, information is recorded in or reproduced from the magnetic storage medium via the head unit. The reciprocating motion of the head unit is provided by piezoelectric elements on arms supporting the head, which move the head with a predetermined stroke width in simple harmonic motion.
摘要翻译：存储装置包括基板，设置在基板上的磁存储介质，磁存储在磁存储介质中的信息，磁头单元和设置在基板上的往复机构，所述往复机构使磁头单元在平行于磁存储介质的表面的平面，其中，当头单元通过往复机构移动时，信息经由头单元记录在磁存储介质中或从磁存储介质再现。头单元的往复运动由支撑头部的臂上的压电元件提供，其以简单的谐波运动以预定的行程宽度移动头部。

9. 发明授权

US06199267B1 Method for the production of a magnetic head 失效
标题翻译：制造磁头的方法
公开(公告)号：US06199267B1
公开(公告)日：2001-03-13
申请号：US09282543
申请日：1999-03-31
申请人： Takao Koshikawa , Atsuhiko Nagai
发明人： Takao Koshikawa , Atsuhiko Nagai
IPC分类号： G11B5187
CPC分类号： G11B5/3967 , G11B5/1871 , G11B5/3106 , G11B5/3109 , G11B5/3116 , G11B5/3163 , G11B5/40 , Y10T29/49041 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for the production of a magnetic head, where first a lower magnetic pole is formed on a wafer. Next, a nonmagnetic write gap layer is formed on the lower magnetic pole. A coil is then formed to be sandwiched between nonmagnetic insulating layers on the nonmagnetic write gap layer. Finally, an upper magnetic pole, provided with a pole tip, is formed to contact the write gap layer on the nonmagnetic write gap layer. After formation, a focused ion beam is irradiated in the direction from a thickness of the pole tip to the lateral parts of the pole tip, the nonmagnetic write gap layer lying directly thereunder. The lower magnetic pole thereby trims the lateral parts of the pole tip while consequently decreasing the width of the pole tip. At the same time, depressed parts are formed in the lower magnetic pole in the areas extending outward from directly below the lateral parts of the pole tip. The width of the pole tip is then equalized and a width of the lower magnetic pole is sandwiched by the depressed parts. Lastly, a protective layer is formed, which is made of a nonmagnetic insulating material, fills in the depressed parts, and, at the same time, covers the upper magnetic pole and the lower magnetic pole.
摘要翻译：一种用于制造磁头的方法，其中首先在晶片上形成下磁极。接下来，在下磁极上形成非磁性写间隙层。然后形成线圈以夹在非磁性写间隙层上的非磁性绝缘层之间。最后，设置有极尖的上磁极与非磁性写间隙层上的写间隙层接触。形成后，在从极尖的厚度到极尖的侧面的方向照射聚焦离子束，非磁性写入间隙层位于其下方。因此，下磁极修剪极尖的侧部，从而减小极尖的宽度。同时，在从极尖的侧面的正下方向外延伸的区域中的下磁极中形成凹陷部。然后使极尖的宽度相等，并且下磁极的宽度被凹陷部分夹持。最后，形成由非磁性绝缘材料制成的保护层，填充凹陷部分，同时覆盖上磁极和下磁极。

10. 发明授权

US6083410A Thin film magnetic head and process for producing same 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US6083410A
公开(公告)日：2000-07-04
申请号：US953186
申请日：1997-10-17
申请人： Yukinori Ikegawa , Takao Koshikawa , Yoshinori Ohtsuka
发明人： Yukinori Ikegawa , Takao Koshikawa , Yoshinori Ohtsuka
IPC分类号： G11B5/23 , G11B5/31 , B44C1/22
CPC分类号： G11B5/3183 , G11B5/3116 , G11B5/232 , G11B5/3163
摘要： A plan or vertical type thin film magnetic head is produced by a process comprising the steps of: forming a gap separator layer of a non-magnetic material on the surface of a substrate, while the forming process is not limited to plating; forming a mask layer on the gap layer; patterning the mask layer to form a shield; etching the gap layer, while the shield functions as a mask, thereby forming a gap wall having a width narrower than that of the shield independent of the resolution degree of the resist; forming a magnetic pole layer of a soft magnetic material on the surface of the substrate by exposing the resist at a time, thereby the formed magnetic pole layer being separated by the gap wall; and, utilizing the gap wall as a magnetic pole gap of the magnetic pole layer.
摘要翻译：通过包括以下步骤的方法制造平面或垂直型薄膜磁头：在基板的表面上形成非磁性材料的间隙隔离层，而成形过程不限于电镀; 在间隙层上形成掩模层; 图案化掩模层以形成屏蔽; 蚀刻间隙层，而屏蔽件用作掩模，从而形成宽度窄于屏蔽件的宽度的间隙壁，而与抗蚀剂的分辨度无关; 通过一次曝光抗蚀剂，在基板的表面上形成软磁性材料的磁极层，由此形成的磁极层被间隙壁分离; 并且利用间隙壁作为磁极层的磁极间隙。

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