公开(公告)号：US6130810A

公开(公告)日：2000-10-10

申请号：US231513

申请日：1994-04-22

申请人： Takuji Shibata ,  Norio Saito ,  Yutaka Soda

发明人： Takuji Shibata ,  Norio Saito ,  Yutaka Soda

IPC分类号： G11B5/39

CPC分类号： G11B5/3948 ,  G11B5/3903

摘要： A magnetic reluctance effect magnetic head in which a forward side electrode is stacked on at least the surface of a magnetic reluctance effect element facing a magnetic recording medium, and in which an upper magnetic pole is stacked on the forward side electrode for facing the magnetic reluctance effect element. A connecting length L1 between the magnetic reluctance effect element and the forward side electrode is shorter than a facing length L2 over which the upper magnetic pole and the magnetic reluctance effect element face each other via a magnetic gap G. The upper magnetic pole and the magnetic reluctance effect element have an area in which the upper magnetic pole and the magnetic reluctance effect element face each other over a distance g2 larger than a magnetic gap length g1 of the magnetic gap G. The upper magnetic pole may be formed to be progressively spaced apart from the magnetic reluctance effect element by being angled 30.degree. relative to the magnetic reluctance effect element, and the distance g2 may be progressively increased. With the magnetic reluctance effect magnetic head, the playback output may be improved and the magnetic head may be reduced in size and in the power consumption.

摘要翻译： 一种磁阻效应磁头，其中前侧电极至少层叠在面对磁记录介质的磁阻效应元件的表面上，并且其中上磁极堆叠在用于面对磁阻的前侧电极上 效果元素。 磁阻效应元件和前侧电极之间的连接长度L1比上磁极和磁阻效应元件经由磁隙G彼此面对的面对长度L2短。上磁极和磁 磁阻效应元件具有上磁极和磁阻效应元件在比磁隙G的磁隙长度g1大的距离g2上彼此面对的区域。上磁极可以形成为逐渐间隔开 从磁阻效应元件相对于磁阻效应元件倾斜30度，并且距离g2可以逐渐增加。 利用磁阻效应磁头，可以提高重放输出，并且可以减小磁头的尺寸和功耗。

公开(公告)号：US5825594A

公开(公告)日：1998-10-20

申请号：US744639

申请日：1996-11-06

申请人： Koji Fukumoto ,  Yutaka Soda ,  Norio Saito ,  Takuji Shibata

发明人： Koji Fukumoto ,  Yutaka Soda ,  Norio Saito ,  Takuji Shibata

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： G11B5/3903 ,  G11B5/3153

摘要： A magneto-resistance effect-type magnetic head according to the present invention can generate a high reproduction output by increasing a quantity of magnetic flux passing across an effective magneto-sensitive zone of a magneto-resistance effect element, while maintaining its inherent functions as a means for preventing unnecessary magnetic flux from entering the MR element or as a recording pole. The magneto-resistance effect-type magnetic head for reproducing signals from a magnetic recording medium, includes a magneto-resistance effect element, upper and lower magnetic layers between which the magneto-resistance effect element is interposed, and a low-permeability magnetic layer provided on at least one of surfaces of the upper and lower magnetic layers which surfaces are opposed to the magneto-resistance effect element, the low-permeability magnetic layer having a magnetic permeability not more than half of a magnetic permeability of the upper or lower magnetic layer.

摘要翻译： 根据本发明的磁阻效应型磁头可以通过增加穿过磁阻效应元件的有效磁敏区的磁通量产生高再现输出，同时保持其固有功能为 用于防止不必要的磁通量进入MR元件或记录极的装置。 用于再现来自磁记录介质的信号的磁阻效应型磁头包括磁阻效应元件，介于该磁阻效应元件之间的上下磁层和设置有低磁导率磁性层 在与磁阻效应元件相对的上表面和下磁性层的至少一个表面上，低磁导率磁性层的磁导率不超过上磁层或下磁层的导磁率的一半 。

公开(公告)号：US5875078A

公开(公告)日：1999-02-23

申请号：US694182

申请日：1996-08-08

申请人： Hideo Suyama ,  Takuji Shibata ,  Norio Saito ,  Mamoru Sasaki ,  Akio Takada ,  Jin Sato ,  Shuichi Haga

发明人： Hideo Suyama ,  Takuji Shibata ,  Norio Saito ,  Mamoru Sasaki ,  Akio Takada ,  Jin Sato ,  Shuichi Haga

IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/455

CPC分类号： G11B5/3903 ,  G11B5/3906 ,  G11B5/455 ,  G11B5/3945

摘要： In a magnetoresistance thin film magnetic head, a bias conductor and a magnetoresistive magnetic sensing section are electrically connected to each other in series. Further, the bias conductor (7) is formed in such a pattern as to have a width and distance from a magnetic recording medium facing surface which become larger as it is away from a portion transversing the magnetoresistive magnetic sensing section.

摘要翻译： 在磁阻薄膜磁头中，偏置导体和磁阻磁感应部分串联电连接。 此外，偏置导体（7）形成为具有与磁记录介质相对表面的宽度和距离的图案，该距离随着远离磁阻感测部分的部分而变大。

公开(公告)号：US5424890A

公开(公告)日：1995-06-13

申请号：US295229

申请日：1994-08-24

申请人： Hideo Suyama ,  Tetsuo Sekiya ,  Munekatsu Fukuyama ,  Norio Saito ,  Takuji Shibata

发明人： Hideo Suyama ,  Tetsuo Sekiya ,  Munekatsu Fukuyama ,  Norio Saito ,  Takuji Shibata

IPC分类号： G11B5/39 ,  G11B5/40

CPC分类号： G11B5/39 ,  G11B5/40

摘要： A magnetoresistance effect type thin film head (A) constructed in a manner that a magnetoresistance effect element, that is, an MR element (1) is disposed perpendicularly to a head surface a, and among two electrodes (2a) and (2b) led out from both ends of the MR element (1), the one electrode (2a) is exposed to the head surface a but the other electrode (2b) is not exposed to the head surface a, wherein the one electrode (2a) exposed to the head surface a is connected to a ground voltage Vss, thereby decreasing the change in voltage difference between the electrode (2a) of the MR element (1) and a disc surface b to prevent the electrical breakdown of the thin film head (A).

摘要翻译： 以磁致电阻效应元件即MR元件（1）垂直于磁头表面a设置的磁阻效应型薄膜磁头（A），以及在两个电极（2a）和（2b）之间引导的磁阻效应型薄膜磁头 从MR元件（1）的两端出来，一个电极（2a）暴露于头表面a，而另一个电极（2b）不暴露于磁头表面a，其中一个电极（2a）暴露于 头表面a连接到接地电压Vss，从而减小MR元件（1）的电极（2a）与盘表面b之间的电压差的变化，以防止薄膜头（A）的电击穿， 。

公开(公告)号：US5272582A

公开(公告)日：1993-12-21

申请号：US766503

申请日：1991-09-27

申请人： Takuji Shibata ,  Kenichiro Tsunewaki ,  Mamoru Sasaki ,  Hideo Suyama ,  Norio Saito

发明人： Takuji Shibata ,  Kenichiro Tsunewaki ,  Mamoru Sasaki ,  Hideo Suyama ,  Norio Saito

IPC分类号： G11B5/39 ,  G11B5/40

CPC分类号： G11B5/3903 ,  G11B5/40

摘要： A magneto-resistance effect type magnetic head incorporates a grounded conductive layer, a second thin film magnetic core and an MR sensing part, the conductive layer being located near the thin film magnetic core, the layer and the core being electrically connected. The conductive layer is further connected electrically to an electrode of the MR sensing part, the electrode facing an air bearing surface. This setup protects the MR sensing part from static electricity destruction, thus providing a magneto-resistance effect type magnetic head of high reliability.

公开(公告)号：US06326086B1

公开(公告)日：2001-12-04

申请号：US09147890

申请日：1999-03-19

申请人： Fujio Mori ,  Takuji Shibata ,  Tsuneyuki Yamanaka

发明人： Fujio Mori ,  Takuji Shibata ,  Tsuneyuki Yamanaka

IPC分类号： B32B2708

摘要： A foil-decorating sheet comprised by a laminated film of two or more kinds of films which is to be set in an injection mold for being integrally bonded to a surface of a molding resin, wherein after a foil-decorating is made, a bonding surface-side film of the laminated film which is bonded to the molding resin has a peel strength of not less than 1 kgf/inch width at least at an interface between the surface film of the laminated film bonded to the molding resin and the molding resin, and wherein at least a transparent acrylic film is laminated on the bonding surface-side film bonded to the molding resin, with a decorative layer formed between the bonding surface-side film bonded to the molding resin and the acrylic film.

摘要翻译： 一种箔装饰片，其由两种或更多种膜构成的层叠膜构成，所述层叠膜将被设置在注塑模具中，以一体地结合到模制树脂的表面，其中在制作箔装饰之后， 至少在与模塑树脂粘合的层合膜的表面膜与模塑树脂之间的界面处，粘合到模制树脂的层压膜的侧膜具有不小于1kgf /英寸宽度的剥离强度， 并且其中至少透明的丙烯酸膜层压在粘合到模制树脂上的粘结表面侧膜上，在与模塑树脂粘合的粘合表面侧膜和丙烯酸膜之间形成装饰层。

公开(公告)号：US5875079A

公开(公告)日：1999-02-23

申请号：US818040

申请日：1997-03-14

申请人： Tadayuki Honda ,  Takuji Shibata ,  Akio Takada

发明人： Tadayuki Honda ,  Takuji Shibata ,  Akio Takada

IPC分类号： G11B5/39

CPC分类号： G11B5/3932 ,  G11B5/3903 ,  G11B5/3941 ,  G11B5/398

摘要： A thin-film magnetic head in which magnetic stability of a magnetoresistance effect film is improved for further stabilizing the playback output. The thin-film magnetic head includes a magnetoresistance effect stabilizing layer 11 having a hard magnetic member 11d and a soft magnetic member 11e, a non-magnetic insulating layer 12 layered on the magnetoresistance effect stabilizing layer 11, a magnetoresistance effect layer 13 layered on the non-magnetic insulating layer 12 and a pair of electrodes connected on both ends of the magnetoresistance effect layer 13. Under the effect of the hard magnetic member 11d, the magnetoresistance effect layer 13 is reduced in coercivity and, under the effect of the soft magnetic member 11e, the magnetic filed which proves to be the saturation flex density is increased.

摘要翻译： 提高了磁阻效应膜的磁稳定性以进一步稳定重放输出的薄膜磁头。 薄膜磁头包括具有硬磁体11d和软磁体11e的磁阻效应稳定层11，层叠在磁阻效应稳定层11上的非磁性绝缘层12，层叠在磁阻效应层11上的磁阻效应层13 非磁性绝缘层12和连接在磁阻效应层13的两端的一对电极。在硬磁性体11d的作用下，磁电阻效应层13的矫顽力降低，在软磁性的作用下 成员11e，证明是饱和弯曲密度的磁场增加。

公开(公告)号：US5351158A

公开(公告)日：1994-09-27

申请号：US706257

申请日：1991-05-28

申请人： Takuji Shibata

发明人： Takuji Shibata

IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/40

CPC分类号： G11B5/3903 ,  G11B5/3106 ,  G11B5/40

摘要： A magnetoresistance-effect thin film head including a substrate, a magnetic field sensing element provided on the substrate, an electrode layer having portions respectively extending from the opposite ends of the magnetic field sensing element to apply a sense current to the magnetic field sensing element so that the sense current will flow in the direction of a signal magnetic field, an insulating layer formed over the magnetic field sensing element, a bias magnetic field creating conductor formed on the insulating layer so as to extend across the magnetic field sensing element, and a magnetic shielding layer shielding the magnetic field sensing element. At least a portion of the electrode layer and a portion of the bias magnetic field creating conductor are included in a conductive pattern.

摘要翻译： 一种磁电阻效应薄膜头，包括衬底，设置在衬底上的磁场感测元件，电极层，其具有分别从磁场感测元件的相对端延伸的部分，以将感测电流施加到磁场感测元件，从而 感测电流将沿着信号磁场的方向流动，形成在磁场感测元件上的绝缘层，形成在绝缘层上以跨越磁场感测元件的偏置磁场产生导体，以及 磁屏蔽层屏蔽磁场感测元件。 电极层的至少一部分和偏置磁场产生导体的一部分被包括在导电图案中。

公开(公告)号：US5828527A

公开(公告)日：1998-10-27

申请号：US820343

申请日：1997-03-12

申请人： Akio Takada ,  Tadayuki Honda ,  Takuji Shibata ,  Moriaki Abe

发明人： Akio Takada ,  Tadayuki Honda ,  Takuji Shibata ,  Moriaki Abe

IPC分类号： G11B5/39

CPC分类号： G11B5/3932 ,  G11B5/3903 ,  G11B5/3935

摘要： A thin-film magnetic head improves magnetic stability of a magnetoresistance effect film 13 for further stabilizing the playback output. The thin-film magnetic head has a magnetoresistance effect stabilizing layer 11, a non-magnetic layer 12 and a magnetoresistance effect layer 13 exhibiting the magnetoresistance effect. The magnetoresistance effect stabilizing layer 11 has a hard magnetic film and a soft magnetic film. The magnetoresistance effect stabilizing layer 11 has a non-magnetic film 11c of a non-magnetic material in at least a partial area between a hard magnetic film 11b and a soft magnetic film 11d. In the thin-film magnetic head, there is produced a stable magnetostatic coupling action between the magnetoresistance effect stabilizing layer 11 and the magnetoresistance effect layer 13 for increasing the magnetic stability of the magnetoresistance effect layer 13 operating as a magnetically sensitive portion.

摘要翻译： 薄膜磁头提高了磁阻效应膜13的磁稳定性，以进一步稳定重放输出。 薄膜磁头具有表现出磁阻效应的磁阻效应稳定层11，非磁性层12和磁阻效应层13。 磁阻效应稳定层11具有硬磁性膜和软磁性膜。 磁阻效应稳定层11在硬磁膜11b和软磁膜11d之间的至少局部区域中具有非磁性材料的非磁性膜11c。 在薄膜磁头中，在磁阻效应稳定层11和磁阻效应层13之间产生稳定的静磁耦合作用，用于增加作为磁敏部分工作的磁阻效应层13的磁稳定性。

公开(公告)号：US5695657A

公开(公告)日：1997-12-09

申请号：US670937

申请日：1996-06-27

申请人： Takuji Shibata ,  Yoshihiro Kanno ,  Tadayuki Honda ,  Akio Takada ,  Yukio Kondo ,  Tadao Suzuki

发明人： Takuji Shibata ,  Yoshihiro Kanno ,  Tadayuki Honda ,  Akio Takada ,  Yukio Kondo ,  Tadao Suzuki

IPC分类号： G11B5/31 ,  G11B5/39 ,  B44C1/22

CPC分类号： G11B5/3903 ,  G11B5/3941 ,  G11B5/3945 ,  G11B5/3113 ,  Y10T29/49032

摘要： A magneto-resistance effect type thin-film magnetic head for detecting reproduced signals by the magneto-resistance effect, which is suitable for detecting reproduced signals by magneto-resistance effects, is disclosed. The thin-film magnetic head includes a two-layered magneto-resistance effect element made up of a first magneto-resistance effect film and a second magneto-resistance effect film of substantially the same width as the first magneto-resistance effect film, layered with a non-magnetic insulating film in-between. Since the magneto-static coupling is produced between the first and second MR films, the magnetic state between the first and second MR films is stabilized. The film thickness contributing to the playback output can be reduced as in the case of a single-layer magnetic head constituted by a single-layer MR film for realizing a high playback output.

摘要翻译： 公开了一种磁阻效应型薄膜磁头，用于通过磁阻效应检测再生信号，适用于通过磁阻效应检测再生信号。 薄膜磁头包括由第一磁阻效应膜和与第一磁阻效应膜基本上相同的宽度的第二磁阻效应膜构成的双层磁阻效应元件， 中间的非磁性绝缘膜。 由于在第一和第二MR膜之间产生磁静态耦合，所以第一和第二MR膜之间的磁状态是稳定的。 与由用于实现高回放输出的单层MR膜构成的单层磁头的情况相比，有助于重放输出的膜厚可以减小。