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1. 发明授权

US4971896A Method for forming thin film pattern and method for fabricating thin film magnetic head using the same 失效
标题翻译：用于形成薄膜图案的方法和使用其制造薄膜磁头的方法
公开(公告)号：US4971896A
公开(公告)日：1990-11-20
申请号：US280828
申请日：1988-12-07
申请人： Takashi Kawabe , Ataru Kobayashi , Moriaki Fuyama , Makoto Morijiri , Eiji Ashida , Masatoshi Tsuchiya , Tetsuya Okai , Masanobu Hanazono , Shinichi Hara , Shinji Narishige , Hiroshi Ikeda
发明人： Takashi Kawabe , Ataru Kobayashi , Moriaki Fuyama , Makoto Morijiri , Eiji Ashida , Masatoshi Tsuchiya , Tetsuya Okai , Masanobu Hanazono , Shinichi Hara , Shinji Narishige , Hiroshi Ikeda
IPC分类号： G03F7/00 , G11B5/31
CPC分类号： G11B5/3163 , G03F7/0035 , Y10S430/165
摘要： A method of forming a thin film pattern on a base having a step portion. This method comprises a first step of forming a thin film of given material on the base, a second step of forming a predetermined pattern of a first photoresist film on said thin film at one of a first portion including a lower part of the step portion and a second portion including an upper part of the step portion, a third step of forming a predetermined pattern of a second photoresist film on said thin film at the other of the first and second portions and a fourth step of applying ion-milling to said thin film of given material using masks said first and second photoresist film patterns formed on said thin film at the first and second portions.
摘要翻译：在具有台阶部的基底上形成薄膜图案的方法。该方法包括在基底上形成给定材料的薄膜的第一步骤，第二步骤，在包括台阶部分的下部的第一部分中的一个上形成在所述薄膜上的第一光致抗蚀剂膜的预定图案，以及第二部分，包括台阶部分的上部;第三步骤，在所述第一和第二部分中的另一个上在所述薄膜上形成第二光致抗蚀剂膜的预定图案;以及第四步骤，将所述薄片给定材料的膜使用掩模，所述第一和第二部分形成在所述薄膜上形成的第一和第二光致抗蚀剂图案。

2. 发明授权

US5296979A Magnetic disc apparatus with thin film head suitable for high-density recording 失效
标题翻译：具有适用于高密度记录的薄膜头的磁盘装置
公开(公告)号：US5296979A
公开(公告)日：1994-03-22
申请号：US963039
申请日：1992-10-19
申请人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Masatoshi Tsuchiya , Eiji Ashida , Makoto Morijiri , Hideki Yamazaki , Yutaka Sugita , Hiroshi Fukui , Tadayuki Iwakura , Makoto Aihara , Makoto Saito , Shunichiro Kuwatsuka , Hiroshi Ikeda , Yokuo Saitoh
发明人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Masatoshi Tsuchiya , Eiji Ashida , Makoto Morijiri , Hideki Yamazaki , Yutaka Sugita , Hiroshi Fukui , Tadayuki Iwakura , Makoto Aihara , Makoto Saito , Shunichiro Kuwatsuka , Hiroshi Ikeda , Yokuo Saitoh
IPC分类号： G11B5/012 , G11B5/31
CPC分类号： G11B5/012 , G11B5/3116
摘要： A magnetic disc apparatus includes a magnetic disc for recording information; a thin film magnetic head including a magnetic pole structure having an upper magnetic pole tip and a lower magnetic pole tip arranged to provide a magnetic gap at respective end portions thereof for writing and reading information in and from the magnetic disc; a device for rotating the magnetic disc; and a device for positioning the thin film magnetic head; the upper and lower magnetic pole tips having different contours at the respective end portions as viewed from a side confronting the magnetic disc wherein the difference (.DELTA.CW in .mu.m) in the width, along the magnetic gap, of the upper magnetic pole tip and the width, along the magnetic gap, of the lower magnetic pole tip satisfies the relation0
摘要翻译：磁盘装置包括用于记录信息的磁盘; 包括具有上磁极端头和下磁极端头的磁极结构的薄膜磁头，其布置成在其各个端部处提供磁隙以在磁盘中写入和读取信息; 用于旋转磁盘的装置; 以及用于定位薄膜磁头的装置; 所述上磁极尖端和下磁极尖在相应端部处具有不同的轮廓，从与磁盘相对的一侧观察，其中沿着上部的磁隙的宽度（（delta）CW）（（m）））磁极尖端和下磁极尖端的磁隙的宽度满足磁道密度Tr为每英寸1800或更多磁道的磁盘的关系0 <（Delta）CW <= 5000 / Tr。

3. 发明授权

US5687045A Thin film magnetic head and production method thereof and magnetic disk drive equipped with this thin film magnetic head 失效
标题翻译：薄膜磁头及其制造方法以及配备该薄膜磁头的磁盘驱动器
公开(公告)号：US5687045A
公开(公告)日：1997-11-11
申请号：US554027
申请日：1995-11-06
申请人： Tetsuya Okai , Moriaki Fuyama , Akira Onuma , Eiji Ashida , Hiroshi Ikeda , Saburo Suzuki , Yasuo Wakaki , Yoshiki Hagiwara , Eimi Ando
发明人： Tetsuya Okai , Moriaki Fuyama , Akira Onuma , Eiji Ashida , Hiroshi Ikeda , Saburo Suzuki , Yasuo Wakaki , Yoshiki Hagiwara , Eimi Ando
IPC分类号： G11B5/31 , G11B5/60 , G11B5/235
CPC分类号： G11B5/6005 , G11B5/3106 , G11B5/3109 , G11B5/3116 , G11B5/3163
摘要： A thin film magnetic head comprising a sintered ceramic substrate, an underlayer, a bottom magnetic core film, a magnetic gap film, an insulating film containing coil windings, a top magnetic core film, and a protective layer. The substrate and other films and layers form an air bearing surface. The under layer, the magnetic gap film and the protective layer comprise Al.sub.2 O.sub.3, and the bottom and the top magnetic core films comprise Ni--Fe alloy. This structure gives substantially the same etching rate, when the air bearing surface is polished using a working fluid of pH 6-8, for any of the substrate, the films comprising Al.sub.2 O.sub.3 and metal oxide described above, and the films of Ni--Fe alloy. Thus, steps (pole top recessions) on the air bearing surface can be made as small as 0.015 .mu.m or less. Accordingly, the magnetic head can be held in a stable attitude, thus obtaining good recording characteristics.
摘要翻译：一种薄膜磁头，包括烧结陶瓷衬底，底层，底部磁芯膜，磁隙膜，含有线圈绕组的绝缘膜，顶部磁芯膜和保护层。衬底和其它膜和层形成空气轴承表面。底层，磁隙膜和保护层包括Al2O3，底部和顶部磁芯膜包括Ni-Fe合金。当使用pH6-8的工作流体对任何基板，包含上述Al 2 O 3和金属氧化物的膜以及Ni-Fe合金膜进行抛光时，该结构基本上具有相同的蚀刻速率。因此，空气轴承表面上的台阶（极顶部凹陷）可以制成小至0.015μm或更小。因此，可以将磁头保持在稳定的姿态，从而获得良好的记录特性。

4. 发明授权

US5668685A Magnetic disc apparatus 失效
标题翻译：磁盘装置
公开(公告)号：US5668685A
公开(公告)日：1997-09-16
申请号：US351562
申请日：1994-12-07
申请人： Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Eiji Ashida , Moriaki Fuyama , Hiroshi Fukui , Saburo Suzuki , Masayuki Takagi , Shinji Narishige
发明人： Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Eiji Ashida , Moriaki Fuyama , Hiroshi Fukui , Saburo Suzuki , Masayuki Takagi , Shinji Narishige
IPC分类号： G11B5/02 , G11B5/133 , G11B5/31 , G11B5/39 , G11B5/127
CPC分类号： G11B5/3903 , G11B5/3929 , G11B5/399 , G11B5/1274 , G11B5/133 , G11B5/3163
摘要： A magnetic disc apparatus is disclosed, in which a magneto-resistance effect film converts a magnetic signal into an electrical signal by use of the magneto-resistance effect, a pair of electrodes supplies a signal detection current to the magneto-resistance effect film, and a magnetic domain control layer controls the magnetic domain of the magneto-resistance effect film. The magneto-resistance effect film, the electrodes and the magnetic domain control layer constitute a magnetic head of magneto-resistance effect type. An isolation film is formed in a magneto-sensitive portion of the magneto-resistance effect film between the magneto-resistance effect film and the magnetic domain control layer to break the magnetic coupling between the magneto-resistance effect film and the magnetic domain control layer.
摘要翻译：公开了一种磁盘装置，其中磁阻效应膜通过使用磁阻效应将磁信号转换成电信号，一对电极向磁阻效应膜提供信号检测电流，并且磁畴控制层控制磁阻效应膜的磁畴。磁阻效应膜，电极和磁畴控制层构成磁阻效应型的磁头。在磁阻效应膜和磁畴控制层之间的磁阻效应膜的磁敏部分中形成隔离膜，以破坏磁阻效应膜和磁畴控制层之间的磁耦合。

5. 发明授权

US5436777A Magnetoresistive head 失效
标题翻译：磁阻头
公开(公告)号：US5436777A
公开(公告)日：1995-07-25
申请号：US941248
申请日：1992-09-04
申请人： Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Eiji Ashida , Moriaki Fuyama , Shinji Narishige , Kouichi Nishioka
发明人： Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Eiji Ashida , Moriaki Fuyama , Shinji Narishige , Kouichi Nishioka
IPC分类号： G11B5/00 , G11B5/012 , G11B5/31 , G11B5/39
CPC分类号： G11B5/3932 , G11B5/012 , G11B5/3903 , G11B5/398 , G11B5/399 , G11B2005/0016 , G11B5/3113 , G11B5/313
摘要： A magnetoresistive head has a substrate (1) and, on the substrate, a magnetoresistive film (40) for converting a magnetic signal into an electric signal by using magnetoresistance effects and a pair of electrodes (60) for causing a signal detection current to flow through the magnetoresistive film. A pair of first domain wall suppressing layers (30) are arranged at opposite end portions of the magnetoresistive film, respectively, to apply a longitudinal magnetic bias to the magnetoresistive film. A second domain wall suppressing layer (45) is also provided for applying a longitudinal magnetic bias, which is weaker compared with the longitudinal magnetic bias applied by the first domain wall suppressing layers, to the magnetoresistive film (40).
摘要翻译：磁阻头具有衬底（1），并且在衬底上具有用于通过使用磁阻效应将磁信号转换为电信号的磁阻膜（40）和用于使信号检测电流流动的一对电极（60）通过磁阻膜。一对第一畴壁抑制层（30）分别布置在磁阻膜的相对端部，以将纵向磁偏压施加到磁阻膜。还提供了第二畴壁抑制层（45），用于施加与由第一畴壁抑制层施加的纵向磁偏压相比较对磁阻膜（40）较弱的纵向磁偏压。

6. 发明授权

US5349745A Method of fabricating thin-film magnetic head 失效
标题翻译：制造薄膜磁头的方法
公开(公告)号：US5349745A
公开(公告)日：1994-09-27
申请号：US69586
申请日：1993-06-01
申请人： Takashi Kawabe , Eiji Ashida , Moriaki Fuyama , Tadayuki Iwakura , Hiroshi Fukui , Yoshikazu Tsuji , Shunichiro Kuwatsuka , Harunobu Saito , Yoshiki Hagiwara , Issei Takemoto , Masayasu Fujisawa
发明人： Takashi Kawabe , Eiji Ashida , Moriaki Fuyama , Tadayuki Iwakura , Hiroshi Fukui , Yoshikazu Tsuji , Shunichiro Kuwatsuka , Harunobu Saito , Yoshiki Hagiwara , Issei Takemoto , Masayasu Fujisawa
IPC分类号： G11B5/31 , G11B5/42
CPC分类号： G11B5/3116 , G11B5/3163 , Y10T29/49052
摘要： A method of fabricating a thin-film magnetic in which a mask pattern in etching a bottom pole is formed of first and second mask films in this order when viewed from the bottom pole, the first mask film is used for defining, by self-alignment, the length of that portion of the side edge of a top pole which is nearly perpendicular to a magnetic gap, the second mask film makes it possible to etch the bottom pole with high dimensional accuracy, a non-magnetic film is formed on the mask pattern having the bottom pole thereunder and the exposed region of a substrate, and the top pole is formed after the mask pattern has been exposed and removed.
摘要翻译：一种制造薄膜磁性的方法，其中当从底极观察时，其中蚀刻底极中的掩模图案依次由第一和第二掩模膜形成，第一掩模膜用于通过自对准，几乎垂直于磁隙的顶极的侧边缘部分的长度，第二掩模膜使得可以以高尺寸精度蚀刻底极，在掩模上形成非磁性膜具有底极的图案和基板的曝光区域，并且在掩模图案被曝光和去除之后形成顶极。

7. 发明授权

US5701221A Magnetoresistive thin-film magnetic head and method of fabrication thereof 失效
标题翻译：磁阻薄膜磁头及其制造方法
公开(公告)号：US5701221A
公开(公告)日：1997-12-23
申请号：US416653
申请日：1995-04-05
申请人： Akira Taniyama , Makoto Morijiri , Haruko Tanaka , Isamu Yuito , Eiji Ashida , Hiroaki Koyanagi , Hideo Tanabe , Tetsuo Kobayashi
发明人： Akira Taniyama , Makoto Morijiri , Haruko Tanaka , Isamu Yuito , Eiji Ashida , Hiroaki Koyanagi , Hideo Tanabe , Tetsuo Kobayashi
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/3906 , G11B5/3163 , G11B5/3903 , G11B5/3932
摘要： A magnetic domain controlling film for controlling the magnetic domain of a magnetoresistive film is formed by a patterning technique on a lower insulating film formed on a lower shield film. The magnetoresistive film is formed on the magnetic domain controlling film for converting a magnetic signal from a magnetic recording medium into an electrical signal using the magnetoresistive effect. A resist pattern is formed by the lift-off method on the magnetoresistive film in such a fashion as to leave a region of the magnetoresistive film corresponding to the tracks of the magnetic recording medium. A magnetoresistive element is formed by ion milling leaving only the portion of the magnetoresistive film corresponding to the tracks. An insulating layer is formed on the resist pattern, on the upper surface region of the lower insulating film other than the portion thereof right under the magnetic domain controlling film reduced in thickness by ion milling, and on the upper surface region of the magnetic domain controlling film other than the portion thereof right under the magnetoresistive film. An electrode film is formed on the insulating layer, after which the resist pattern is removed. The insulating layer is contiguously deposited on the upper surface region formed in a thin layer of the lower insulating film and on a part of the upper surface region formed in a thin layer of the magnetic domain controlling film.
摘要翻译：用于控制磁阻膜的磁畴的磁畴控制膜通过在下屏蔽膜上形成的下绝缘膜上的图案化技术形成。磁阻膜形成在磁畴控制膜上，用于使用磁阻效应将来自磁记录介质的磁信号转换成电信号。通过剥离方法在磁阻膜上形成抗蚀剂图案，以便留下与磁记录介质的轨道相对应的磁阻膜的区域。通过离子铣削形成磁阻元件，仅留下对应于轨道的磁阻膜的部分。绝缘层形成在抗蚀剂图案上，除了通过离子研磨在厚度减小的磁畴控制膜的正下方的部分的下部绝缘膜的上表面区域上形成绝缘层，并且在磁畴控制的上表面区域膜之外的其它部分即刻在磁阻膜的正下方。在绝缘层上形成电极膜，然后除去抗蚀剂图案。绝缘层连续沉积在形成在下绝缘膜的薄层中的上表面区域和形成在磁畴控制膜的薄层中的上表面区域的一部分上。

8. 发明授权

US5897969A Method of fabricating a magnetoresistive thin-film magnetic head 失效
标题翻译：制造磁阻薄膜磁头的方法
公开(公告)号：US5897969A
公开(公告)日：1999-04-27
申请号：US975332
申请日：1997-11-20
申请人： Akira Taniyama , Makoto Morijiri , Haruko Tanaka , Isamu Yuito , Eiji Ashida , Hiroaki Koyanagi , Hideo Tanabe , Tetsuo Kobayashi
发明人： Akira Taniyama , Makoto Morijiri , Haruko Tanaka , Isamu Yuito , Eiji Ashida , Hiroaki Koyanagi , Hideo Tanabe , Tetsuo Kobayashi
IPC分类号： G11B5/31 , G11B5/39 , B32B9/00
CPC分类号： G11B5/3906 , G11B5/3163 , G11B5/3903 , G11B5/3932
摘要： A magnetic domain controlling film for controlling the magnetic domain of a magnetoresistive film is formed by the patterning technique on a lower insulating film formed on a lower shield film. The magnetoresistive film is formed on the magnetic domain controlling film for converting a magnetic signal from a magnetic recording medium into an electrical signal using the magnetoresistive effect. A resist pattern is formed by the lift-off method on the magnetoresistive film in such a fashion as to leave a region of the magnetoresistive film corresponding to the tracks of the magnetic recording medium. A magnetoresistive element is formed by ion milling leaving only the portion of the magnetoresistive film corresponding to the tracks.
摘要翻译：通过在下屏蔽膜上形成的下绝缘膜上的图案化技术形成用于控制磁阻膜的磁畴的磁畴控制膜。磁阻膜形成在磁畴控制膜上，用于使用磁阻效应将来自磁记录介质的磁信号转换成电信号。通过剥离方法在磁阻膜上形成抗蚀剂图案，以便留下与磁记录介质的轨道相对应的磁阻膜的区域。通过离子铣削形成磁阻元件，仅留下对应于轨道的磁阻膜的部分。

9. 发明授权

US4396823A Method of electrode current control in welding apparatus having a plurality of electrodes 失效
标题翻译：具有多个电极的焊接设备中的电极电流控制方法
公开(公告)号：US4396823A
公开(公告)日：1983-08-02
申请号：US313832
申请日：1981-10-22
申请人： Masayasu Nihei , Satoshi Kokura , Eiji Ashida , Yuzo Kozono , Akira Onuma
发明人： Masayasu Nihei , Satoshi Kokura , Eiji Ashida , Yuzo Kozono , Akira Onuma
IPC分类号： B23K9/167 , B23K9/00 , B23K9/073 , B23K9/10 , B23K9/16 , B23K9/09
CPC分类号： B23K9/1068
摘要： In a welding apparatus having a plurality of electrodes and adapted for carrying out welding operation on a workpiece by alternately supplying currents to the individual electrodes through switching elements, an apparatus and method of controlling the currents supplied to the electrodes, comprising selecting the values of the currents supplied to the individual electrodes depending on the material of the workpiece, and carrying out the welding operation on the workpiece by alternately supplying the currents of the selected values to the individual electrodes respectively through the switching elements. The method is featured by the fact that the ratio between the individual currents is selected under the condition that the sum of the values of all the currents is maintained at a predetermined value. It is also featured by the fact that, depending on the welding condition, the values of the individual currents can be freely selected without the limitation of maintaining the sum of all the currents at the predetermined value. Therefore, the apparatus and method are applicable to welding of a variety of materials by selecting the values of the individual currents depending on whether the workpiece has a high or low melting point and also whether the workpiece has a high or low heat conductivity.
摘要翻译：在具有多个电极的焊接装置中，适于通过交替地通过开关元件向各个电极提供电流来对工件进行焊接操作的装置和方法，包括：选择所述电极的电流值根据工件的材料供应到各个电极的电流，并且通过交替地通过开关元件将选定值的电流交替地提供给各个电极，从而对工件进行焊接操作。该方法的特征在于，在所有电流的值的总和保持在预定值的条件下选择各个电流之间的比率。这也是因为根据焊接条件，可以自由地选择各个电流的值，而不必将所有电流的总和保持在预定值。因此，该装置和方法适用于通过根据工件是高熔点还是低熔点选择各个电流值以及工件是否具有高导热性或低导热性来对各种材料进行焊接。

10. 发明申请

US20140124489A1 Hybrid Welding Method of Laser Welding and Arc Welding for T-Joint 审中-公开
标题翻译： T型接头激光焊接和电弧焊接混合焊接方法
公开(公告)号：US20140124489A1
公开(公告)日：2014-05-08
申请号：US14129121
申请日：2012-05-18
申请人： Xudong Zhang , Eiji Ashida , Shoh Tarasawa , Yukihiro Soga
发明人： Xudong Zhang , Eiji Ashida , Shoh Tarasawa , Yukihiro Soga
IPC分类号： B23K28/02
CPC分类号： B23K28/02 , B23K26/242 , B23K26/348 , B23K33/004
摘要： A hybrid welding method of laser welding and arc welding for a T-joint in which a rib as one member to be welded abuts orthogonally onto a surface of a flange as other member to be welded includes forming a groove portion on a lateral surface of the rib that is an abutting part between the rib and the flange forming the T-joint; forming a flat part at a bottom part of the groove portion formed in the abutting part between the rib and the flange; and performing a hybrid welding using both laser welding in which the groove portion A with this flat part therein is irradiated with a laser beam, and arc welding, to form weld beads of weld metal in the groove portion A, so that welding together the flange and the rib forming the T-joint.
摘要翻译：一种用于T形接头的激光焊接和电弧焊接的混合焊接方法，其中作为待焊接的一个构件的肋作为待焊接的构件正交地邻接在法兰的表面上，包括在所述焊接的侧表面上形成槽部肋是肋和形成T形接头的凸缘之间的抵接部分; 在形成在肋和凸缘之间的抵接部分中的槽部的底部处形成平坦部分; 并且使用激光焊接进行混合焊接，其中利用激光束对其中的该平坦部分的槽部分A进行激光焊接和电弧焊接，以在槽部分A中形成焊接金属的焊缝，从而将凸缘和形成T形接头的肋。

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