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21. 发明授权

US5726838A Magnetic disc apparatus with head having magneto-resistance effect 失效
标题翻译：具有磁头效应的磁头磁盘装置
公开(公告)号：US5726838A
公开(公告)日：1998-03-10
申请号：US400457
申请日：1995-03-07
申请人： Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Akira Kumagai , Moriaki Fuyama , Shinji Narishige
发明人： Susumu Soeya , Shigeru Tadokoro , Takao Imagawa , Akira Kumagai , Moriaki Fuyama , Shinji Narishige
IPC分类号： G11B5/39 , G11B5/012 , G11B5/31
CPC分类号： G11B5/012 , G11B5/3113 , G11B5/3903 , G11B5/3929 , G11B5/3967 , G11B5/3163
摘要： A magnetic disc apparatus capable of noiseless, high-output reproduction is disclosed. A magnetic head including a magnetic domain control structure having an antiferromagnetic film for applying a longitudinally biasing magnetic field to a magneto-sensitive portion of a magneto-resistance effect film, and a magnetic film smaller in spontaneous magnetization than the magneto-resistance effect film, which magnetic film is interposed between the magneto-resistance effect film and the antiferromagnetic film. A magnetic disc apparatus is thus realized which is high in recording density and usable in stable manner within the operating temperature range.
摘要翻译：公开了一种能够进行无噪声，高输出再现的磁盘装置。一种包括具有用于向磁阻效应膜的磁敏部分施加纵向偏置磁场的反铁磁膜的磁畴控制结构的磁头和比磁阻效应膜小的自发磁化的磁性膜，该磁性膜介于磁阻效应膜和反铁磁膜之间。因此，实现了高记录密度并且在工作温度范围内可稳定使用的磁盘装置。

22. 发明授权

US5316617A Thin film magnetic head and method of manufacturing the same 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US5316617A
公开(公告)日：1994-05-31
申请号：US57020
申请日：1993-05-05
申请人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Akira Onuma , Tetsuya Okai , Yutaka Sugita , Shin-ichi Hara
发明人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Akira Onuma , Tetsuya Okai , Yutaka Sugita , Shin-ichi Hara
IPC分类号： G11B5/31 , C04B41/53 , C04B41/91 , H01L21/302 , H01L21/3065 , B44C1/22 , C23F1/00
CPC分类号： C04B41/009 , C04B41/5338 , C04B41/91 , G11B5/3163 , C04B2111/00422 , Y10T29/49032
摘要： A thin film magnetic head comprising a substrate on which are successively formed a base layer, a lower magnetic film, a gap layer, an insulator layer, a conductor coil, an upper magnetic film, and a first mask, is manufactured by a method in which one or more of a gas which can be expressed by the general formula of CnHxFy (where n.gtoreq.1, x+y=2n+2, x>0, y>0, and x.gtoreq.y); and a gas which can be expressed by the general formula of CnHxFy (where n.gtoreq.1, x+y=2n+2, x.gtoreq.0, y.gtoreq.0, and x
摘要翻译：通过以下方法制造薄膜磁头，该薄膜磁头依次形成基底层，下磁性膜，间隙层，绝缘体层，导体线圈，上磁性膜和第一掩模其中一种或多种可由通式C n H x F y（其中n> / = 1，x + y = 2n + 2，x> 0，y> 0和x> / = y）表示的气体; 并且使用可以由CnHxFy（其中n> / = 1，x + y = 2n + 2，x> / = 0，y> / = 0和x

23. 发明授权

US5241440A Thin film magnetic head and manufacturing method therefor 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US5241440A
公开(公告)日：1993-08-31
申请号：US908607
申请日：1992-06-29
申请人： Eizi Ashida , Moriaki Fuyama , Hideki Yamazaki , Shinji Narishige , Makoto Morijiri , Takashi Kawabe , Shunichiro Kuwatsuka , Saburo Suzuki , Eisei Togawa
发明人： Eizi Ashida , Moriaki Fuyama , Hideki Yamazaki , Shinji Narishige , Makoto Morijiri , Takashi Kawabe , Shunichiro Kuwatsuka , Saburo Suzuki , Eisei Togawa
IPC分类号： G11B5/31
CPC分类号： G11B5/313 , G11B5/3163
摘要： A thin film magnetic head including conductor coils, a plurality of insulating layers to interpose and insulate the conductor coils and a magnetic gap layer between upper and lower magnetic cores, in which another insulating layer is provided on a stepped region formed by end faces of the plurality of insulating layers.
摘要翻译：一种薄膜磁头，包括导体线圈，多个绝缘层，用于将导体线圈插入并绝缘，以及在上下磁芯之间的磁隙层，其中另一绝缘层设置在由多个绝缘层。

24. 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。

25. 发明授权

US4592801A Method of patterning thin film 失效
标题翻译：薄膜图案方法
公开(公告)号：US4592801A
公开(公告)日：1986-06-03
申请号：US639012
申请日：1984-08-09
申请人： Shinichi Hara , Shinji Narishige , Tsuneo Yoshinari , Mistuo Sato , Katsuya Mitsuoka , Makoto Morijiri , Masanobu Hanazono , Tetsuo Kobayashi
发明人： Shinichi Hara , Shinji Narishige , Tsuneo Yoshinari , Mistuo Sato , Katsuya Mitsuoka , Makoto Morijiri , Masanobu Hanazono , Tetsuo Kobayashi
IPC分类号： G11B5/31 , H01L21/302 , H01L21/3065 , H01L21/311 , B44C1/22 , C03C15/00 , C03C25/06 , C23F1/02
CPC分类号： H01L21/31116 , H01L21/302 , G11B5/3116 , G11B5/3163
摘要： A method of patterning a thin film by dry etching is disclosed in which, in order for a thin alumina film to have a predetermined pattern, the thin alumina film is selectively removed by carrying out the ion beam etching which uses a carbon fluoride gas, while using a photoresist film as a mask.
摘要翻译：公开了一种通过干蚀刻图案化薄膜的方法，其中为了使氧化铝薄膜具有预定图案，通过进行使用氟化碳气体的离子束蚀刻来选择性地除去薄氧化铝膜，同时使用光致抗蚀剂膜作为掩模。

26. 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。

27. 发明授权

US5461517A Magneto-resistance effect type of recording/reproducing head 失效
标题翻译：记录/再现头的磁阻效应类型
公开(公告)号：US5461517A
公开(公告)日：1995-10-24
申请号：US183943
申请日：1994-01-21
申请人： Mitsuo Suda , Kazuo Shiiki , Masanori Tanabe , Shinji Narishige , Eiji Nakanishi , Kouichi Shimizu , Norifumi Miyamoto , Hirotsugu Fukuoka
发明人： Mitsuo Suda , Kazuo Shiiki , Masanori Tanabe , Shinji Narishige , Eiji Nakanishi , Kouichi Shimizu , Norifumi Miyamoto , Hirotsugu Fukuoka
IPC分类号： G11B5/00 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/31 , G11B5/39 , G11B19/04 , G11B5/03
CPC分类号： G11B19/04 , G11B5/012 , G11B5/02 , G11B2005/0008 , G11B5/3113
摘要： In a magnetic disk device having a composite head with an induction type of recording head adjacent a magneto-resistance effect type of reproducing head, a read error relief is provided to relieve read errors caused by Barkhausen Noise or Base Line Shift phenomenon inherent to the magneto-resistance effect type of reproducing head. Upon occurrence of a read error, a re-try function is first executed, and a track offset function is executed for relief of the read error. However, if the read error is not relieved after the offset operation and the re-try operation have been performed a predetermined number of times, then a pseudo write-in and/or read current control operation is performed together with the offset operation and/or re-try operation for a predetermined number of times. The control operation varies the magnetic domain structure in the head magnetic film (MR film). The variation of magnetic field and/or read current in the head magnetic film causes the magnetic domain structure of the head magnetic film to be varied, so that the Barkhausen Noise or the Base Line Shift phenomenon are extinguished.
摘要翻译：在具有与磁阻效应类型的再现头相邻的具有感应型记录头的复合头的磁盘装置中，提供读取误差缓解以减轻由Barkhausen噪声或基本线移位现象引起的读取误差电阻效应类型的再现头。在发生读取错误时，首先执行重试功能，并且执行磁道偏移功能以减轻读取错误。然而，如果在偏移操作和重试操作已经执行了预定次数之后读取错误不被解除，则伪写入和/或读取电流控制操作与偏移操作和/ 或重新尝试操作预定次数。控制操作改变磁头磁性膜（MR膜）中的磁畴结构。头磁性膜中的磁场和/或读取电流的变化导致磁头磁性膜的磁畴结构发生变化，从而使巴克豪森噪声或基线偏移现象消失。

28. 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。

29. 发明授权

US5327313A Magnetoresistance effect type head having a damage immune film structure 失效
标题翻译：具有损伤免疫膜结构的磁阻效应型头
公开(公告)号：US5327313A
公开(公告)日：1994-07-05
申请号：US922472
申请日：1992-07-31
申请人： Kouichi Nishioka , Shigeru Tadokoro , Shinji Narishige
发明人： Kouichi Nishioka , Shigeru Tadokoro , Shinji Narishige
IPC分类号： G11B5/39 , G11B5/127
CPC分类号： G11B5/3932 , G11B5/3903
摘要： A magnetoresistance effect type head including a ceramic substrate, a first magnetic film provided on the ceramic substrate, a second magnetic film provided above the first magnetic film, first and second insulating films provided between the first and second magnetic films, a magnetoresistance effect type film provided between the first and second insulating films, a bias film provided between the first and second insulating films in contact with the magnetoresistive film for applying magnetic field to the magnetoresistive film, a first conductive film provided between the first and second insulating films and above the bias film to be nearly as thick as the mean free path of free electrons, and a second conductive film of an electrode structure mutually separated between the first and second insulating films in contact with the first conductive film. The first conductive film is a nickel-chromium film or a chromium film which is resistive to a fluorocarbon-series gas to be used for etching. The second conductive film is made of a metal which is etched with a fluorocarbon-series gas and which has a thickness of 200 nm or more. The bias film and the magnetoresistance effect type film are protected from over-etching. The second conductive layer is made up of two metallic layers having contact tightness with the second insulating film and a third metallic layer which is sandwiched between the two metallic layers and which has a conductivity larger than the two metallic layers and also a thickness larger than the two metallic layers.
摘要翻译：一种磁阻效应型头，包括陶瓷基板，设置在陶瓷基板上的第一磁性膜，设置在第一磁性膜上方的第二磁性膜，设置在第一和第二磁性膜之间的第一和第二绝缘膜，磁阻效应型膜设置在所述第一绝缘膜和所述第二绝缘膜之间的偏置膜，设置在与所述磁阻膜接触的所述第一和第二绝缘膜之间用于对所述磁阻膜施加磁场的偏置膜，设置在所述第一绝缘膜和所述第二绝缘膜之间的第一导电膜，偏置膜几乎与自由电子的平均自由程相同，以及在与第一导电膜接触的第一和第二绝缘膜之间相互分离的电极结构的第二导电膜。第一导电膜是耐蚀刻用氟碳系气体的镍铬膜或铬膜。第二导电膜由用碳氟化合物系列气体蚀刻并且厚度为200nm以上的金属制成。保护偏置膜和磁阻效应型膜免受过蚀刻。第二导电层由与第二绝缘膜具有接触紧密度的两个金属层和夹在两个金属层之间的导电率大于第二绝缘膜的第三金属层构成，并且具有比两个金属层更大的导电性，两层金属层。

30. 发明授权

US5245493A Magnetic information storage apparatus including magnetic head and method for making magnetic head 失效
标题翻译：包括磁头的磁信息存储装置及制造磁头的方法
公开(公告)号：US5245493A
公开(公告)日：1993-09-14
申请号：US495908
申请日：1990-03-20
申请人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Eizi Ashida , Makoto Morijiri , Masanori Tanabe , Hiroshi Fukui , Yutaka Sugita , Hiroshi Ikeda , Masaaki Hayashi , Kazuo Nakagoshi , Kanji Kawakami , Yokuo Saitoh , Shunichiro Kuwatsuka
发明人： Takashi Kawabe , Moriaki Fuyama , Shinji Narishige , Eizi Ashida , Makoto Morijiri , Masanori Tanabe , Hiroshi Fukui , Yutaka Sugita , Hiroshi Ikeda , Masaaki Hayashi , Kazuo Nakagoshi , Kanji Kawakami , Yokuo Saitoh , Shunichiro Kuwatsuka
IPC分类号： G11B5/012 , G11B5/31 , G11B5/39
CPC分类号： G11B5/3919 , G11B5/012 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3903 , G11B5/3967
摘要： A magnetic head for reading from and/or writing to a magnetic information storage medium has a substrate on which a plurality of thin films are formed in sequence. The films provide a magnetic circuit having a magnetic gap, a bottom pole piece and a top pole piece overlying said bottom pole piece. The top pole piece is formed as a tip portion adjoining the magnetic gap and a rear portion which makes magnetic contact with the tip portion. The rear portion is formed in the sequence after the tip portion. To ensure accurate thickness and width of the tip portion, a non-magnetic protective film is formed on the tip portion after the tip portion is formed and before the rear portion is formed.

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