公开(公告)号：US5358576A

公开(公告)日：1994-10-25

申请号：US157112

申请日：1980-06-06

申请人： Harufumi Senno ,  Hiroshi Sakakima ,  Masatsugu Yamaguchi ,  Eiichi Hirota

发明人： Harufumi Senno ,  Hiroshi Sakakima ,  Masatsugu Yamaguchi ,  Eiichi Hirota

IPC分类号： C22C45/04 ,  H01F1/153 ,  C22C19/07 ,  H01F1/047

CPC分类号： C22C45/04 ,  H01F1/15316

摘要： In amorphous materials including at least one iron-transition metal of Fe, Co, and Ni, and at least one metalloid of B, C, Si, and P, excellent magnetic characteristics can be provided subject to the condition that 0.5 to 10 atomic % of the above-described iron-transition metals are substituted by Mn. In addition, when the amorphous material partially substituted with Mn as described above is further comprised of at least one element selected from Groups IIIa, IVa, Va, and VIa in the periodic table, the crystallization temperature is considerably raised.

摘要翻译： 在包含Fe，Co和Ni的至少一种铁过渡金属和至少一种B，C，Si和P的准金属的无定形材料中，可以提供优选的磁特性，条件是以0.5至10原子％ 的上述铁 - 过渡金属被Mn取代。 此外，当如上所述被Mn部分取代的无定形材料进一步包含选自元素周期表中的IIIa，IVa，Va和VIa族中的至少一种元素时，结晶温度显着升高。

公开(公告)号：US5243316A

公开(公告)日：1993-09-07

申请号：US824005

申请日：1992-01-22

申请人： Hiroshi Sakakima ,  Mitsuo Satomi ,  Toshio Takada ,  Teruya Shinjo

发明人： Hiroshi Sakakima ,  Mitsuo Satomi ,  Toshio Takada ,  Teruya Shinjo

IPC分类号： G01D5/14 ,  G01D5/16 ,  G01R33/09 ,  G11B5/39 ,  H01C10/00 ,  H01F10/00 ,  H01F10/08 ,  H01F10/32 ,  H01L43/10

CPC分类号： G01D5/142 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3903 ,  H01F10/32 ,  H01F10/3281 ,  H01L43/10 ,  G11B2005/3996 ,  Y10S428/926 ,  Y10S428/928 ,  Y10T428/12465 ,  Y10T428/12931 ,  Y10T428/12944

摘要： There is provided a magnetoresistance effect element which is a multilayer structure body wherein a first magnetic film layer made of Ni-rich Ni-Co-Fe having a thickness of 10 to 100 .ANG. and a second magnetic film layer made of Co-rich Co-Ni-Fe having a thickness of 10 to 100 .ANG., which are different from each other in coercive force, are integrally laminated with a non-magnetic metal film layer having a thickness of 10 to 100 .ANG. interposed therebetween. The non-magnetic metal film layer is of a metal, for example, Cu, Ag, Au, Pt, Ru or Re. (Ni.sub.A Co.sub.1-A).sub.B Fe.sub.1-B, Ni.sub.A Fe.sub.1-A or Ni.sub.A Co.sub.1-A is used as a material of the first magnetic film, and (Co.sub.C Ni.sub.1-C).sub.D Fe.sub.1-D is used as a material of the second magnetic film.

公开(公告)号：US4841401A

公开(公告)日：1989-06-20

申请号：US224215

申请日：1988-07-25

申请人： Mitsuo Satomi ,  Akio Kuroe ,  Eisuke Sawai ,  Masaru Higashionji ,  Hiroshi Sakakima ,  Kenji Kondo

发明人： Mitsuo Satomi ,  Akio Kuroe ,  Eisuke Sawai ,  Masaru Higashionji ,  Hiroshi Sakakima ,  Kenji Kondo

IPC分类号： G11B5/127 ,  G11B5/147

CPC分类号： G11B5/147

摘要： A magnetic head includes magnetic cores formed by sputter layers of an amorphous magnetic alloy formed on a non-magnetic substrate (1). A non-magnetic ceramic layer is provided on one amorphous magnetic alloy layer, and a non-magnetic substrate is bonded thereon by a bonding glass layer. The one amorphous magnetic alloy sputter layer is isolated from the bonding glass layer by the non-magnetic ceramic layer to prevent the quality of the bonding glass layer from deteriorating thus a stronger bonding force is maintained. The bonding of the amorphous ceramic layer with respect to the one amorphous magnetic alloy layer is strong, thus providing a magnetic head having high reliability.

摘要翻译： PCT No.PCT / JP84 / 00037 Sec。 371日期1984年10月9日第 102（e）日期1984年10月9日PCT提交1984年2月9日PCT公布。 公开号WO84 / 03167 日期1984年8月16日。磁头包括由形成在非磁性基板（1）上的非晶磁合金的溅射层形成的磁芯。 在非晶磁性合金层上设置非磁性陶瓷层，通过接合玻璃层将非磁性基板粘接在其上。 通过非磁性陶瓷层将一个非晶磁性合金溅射层与粘合玻璃层隔离，以防止接合玻璃层的质量劣化，从而保持更强的粘结力。 无定形陶瓷层相对于一个非晶磁性合金层的结合很强，从而提供了具有高可靠性的磁头。

公开(公告)号：US4755898A

公开(公告)日：1988-07-05

申请号：US619959

申请日：1984-06-12

申请人： Masaru Higashionji ,  Akio Kuroe ,  Eisuke Sawai ,  Mitsuo Satomi ,  Hiroshi Sakakima ,  Kenji Kondo

发明人： Masaru Higashionji ,  Akio Kuroe ,  Eisuke Sawai ,  Mitsuo Satomi ,  Hiroshi Sakakima ,  Kenji Kondo

IPC分类号： G11B5/147 ,  G11B5/235 ,  G11B5/127

CPC分类号： G11B5/235 ,  G11B5/1475

摘要： A pair of half core pieces is bonded by a high lead glass bond having a low melting point, which is formed on a metal layer of small wetting angle, such as Cr, Cu, Ag, Ti, the metal layer being formed by spattering at least on a part adjacent to a plane of gap of each core piece.

摘要翻译： 一对半芯片通过具有低熔点的高铅玻璃结合，该低铅熔点形成在诸如Cr，Cu，Ag，Ti的小润湿角的金属层上，金属层通过溅射形成 至少在与每个芯片的间隙平面相邻的部分上。

公开(公告)号：US4590530A

公开(公告)日：1986-05-20

申请号：US444455

申请日：1982-11-24

申请人： Hiroshi Sakakima ,  Mitsuo Satomi ,  Yukihiro Yanagiuchi ,  Harufumi Senno

发明人： Hiroshi Sakakima ,  Mitsuo Satomi ,  Yukihiro Yanagiuchi ,  Harufumi Senno

IPC分类号： G11B5/133 ,  G11B5/127 ,  G11B5/147 ,  G11B5/245 ,  G11B5/255 ,  G11B5/31 ,  G11B5/12

CPC分类号： G11B5/127 ,  G11B5/3106

摘要： A magnetic head a core having a front core and a back core. The front core has a wear-resistant non-magnetic base and a soft magnetic thin film disposed on the base. The thin film is divided into halves by a magnetic gap therein. The back core has a U-shaped block of soft magnetic material and a wear-resistant non-magnetic member connected between the legs of the soft magnetic block. The front and back cores are coupled with each other with the thin film sandwiched therebetween, the magnetic gap in the thin film facing the wear-resistant non-magnetic member, and the soft magnetic thin film and the soft magnetic block being in face-to-face contact with each other out of the neighborhood of the magnetic gap to form a closed magnetic path across the magnetic gap.

摘要翻译： 磁头是具有前芯和后芯的芯。 前芯具有设置在基座上的耐磨非磁性基座和软磁薄膜。 薄膜通过其中的磁隙被分成两半。 背芯具有软磁性材料的U形块和连接在软磁块的腿之间的耐磨非磁性构件。 前芯和后芯彼此耦合，薄膜夹在其间，薄膜中的磁隙面向耐磨非磁性构件，软磁薄膜和软磁块面对面 在磁隙附近彼此接触，以形成跨越磁间隙的封闭磁路。

公开(公告)号：US4488195A

公开(公告)日：1984-12-11

申请号：US358208

申请日：1982-03-15

申请人： Yukihiro Yanagiuchi ,  Eiichi Hirota ,  Hiroshi Sakakima ,  Harufumi Senno

发明人： Yukihiro Yanagiuchi ,  Eiichi Hirota ,  Hiroshi Sakakima ,  Harufumi Senno

IPC分类号： C22C45/04 ,  G11B5/127 ,  G11B5/147 ,  G11B5/23 ,  G11B5/235 ,  G11B5/255 ,  H01F1/153 ,  G11B5/12 ,  G11B5/16 ,  G11B5/251 ,  H01F1/04

CPC分类号： G11B5/127 ,  C22C45/04 ,  G11B5/1475 ,  H01F1/15316 ,  H01F1/15383

摘要： A magnetic head and a method of producing same, wherein the magnetic head includes a head core formed of metallic magnetic material and has a head gap formed in a portion of the head core adapted to be positioned against a recording medium, and windings mounted on the head core. The material forming the head core is amorphous and has the following composition:(Co.sub.1-x M'.sub.x).sub.a Zr.sub.b Si.sub.c B.sub.d, where M' is at least one element selected from the group consisting of Cr, Mn, Fe Ni, Nb, Mo, W and Ti, 0.03.ltoreq.x.ltoreq.0.15, 3.ltoreq.b.ltoreq.25, 0.ltoreq.c.ltoreq.20, 0.ltoreq.d.ltoreq.5, and a+b+c+d=100.

摘要翻译： 一种磁头及其制造方法，其中磁头包括由金属磁性材料形成的磁头芯，并且具有形成在磁头芯部的适于抵靠记录介质的部分中的磁头间隙，以及安装在磁头上的绕组 头核心。 形成头芯的材料是无定形的，具有以下组成：（Co1-xM'x）a Zrb SicBd，其中M'是选自Cr，Mn，FeNi，Nb，Mo中的至少一种元素 ，W和Ti，0.03≤x≤0.15，3≤b≤25,0≤c≤20,0≤d≤5，a + b + c + d = 100。

公开(公告)号：US4288260A

公开(公告)日：1981-09-08

申请号：US134132

申请日：1980-03-26

申请人： Harufumi Senno ,  Hiroshi Sakakima ,  Yukihiro Yanagiuchi ,  Tsuneo Inoue ,  Masatsugu Yamaguchi ,  Eiichi Hirota

发明人： Harufumi Senno ,  Hiroshi Sakakima ,  Yukihiro Yanagiuchi ,  Tsuneo Inoue ,  Masatsugu Yamaguchi ,  Eiichi Hirota

IPC分类号： C21D6/00 ,  C21D9/56 ,  C22F1/00 ,  H01F1/153 ,  H01F1/00

CPC分类号： H01F1/15341 ,  C21D9/56 ,  C21D9/564

摘要： A method of heat treatments of amorphous alloy ribbons comprises the sequential steps of; grinding amorphous alloy ribbon continuously fed at a predetermined speed (V) selectively varied in the range of 1 cm/sec.ltoreq.V.ltoreq.50 cm/sec, to uniformly finish the ribbon, and successively, heat-treating the ribbon with its surface contacting a stationary or rotating heating body having a surface temperature (T) defined in the range of (T.sub.cry -200.degree. C.).ltoreq.V.ltoreq.(T.sub.cry +50.degree. C.), where T.sub.cry is a crystallization point temperature of the alloy, to uniformly enhance the magnetic properties of the ribbon, and to remove the specific curlings inherently caused by so-called splat cooling manufacturing method, without causing any developments of brittleness of the ribbon mentioned above.

摘要翻译： 非晶合金带的热处理方法包括以下步骤： 在以1cm / sec×50cm / sec的范围内选择性地变化的以预定速度（V）连续进料的非晶态合金带的研磨，以使丝条均匀地完成，并且随后用 其表面接触表面温度（T）在（Tcry-200℃）=（Tcry + 50℃）范围内的固定或旋转加热体，其中Tcry为结晶 以均匀地提高带的磁特性，并且消除由所谓的丝锥冷却制造方法固有地引起的特定卷曲，而不会引起上述带的脆性的任何变化。

公开(公告)号：US06982932B2

公开(公告)日：2006-01-03

申请号：US10659964

申请日：2003-09-10

申请人： Hiroshi Sakakima ,  Masahiro Birukawa ,  Kazuo Yokoyama ,  Masayoshi Hiramoto

发明人： Hiroshi Sakakima ,  Masahiro Birukawa ,  Kazuo Yokoyama ,  Masayoshi Hiramoto

IPC分类号： G11B11/00

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/00 ,  G11B5/00813 ,  G11B5/012 ,  G11B5/39 ,  G11B5/3951 ,  G11B5/48 ,  G11B5/58 ,  G11B13/04 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021 ,  G11B2005/3996

摘要： A magnetic head for reproducing a signal recorded on a recording medium, includes a substrate, a magnetic head core provided on the substrate, having a magnetic gap, and a magnetoresistance device provided on the magnetic head core. The magnetic head core is provided in such a manner that a thickness direction of the magnetic head core around the magnetic gap is substantially the same as a track width direction of the recording medium.

公开(公告)号：US06977799B2

公开(公告)日：2005-12-20

申请号：US10896774

申请日：2004-07-22

申请人： Masayoshi Hiramoto ,  Nozomu Matsukawa ,  Akihiro Odagawa ,  Kenji Iijima ,  Hiroshi Sakakima

发明人： Masayoshi Hiramoto ,  Nozomu Matsukawa ,  Akihiro Odagawa ,  Kenji Iijima ,  Hiroshi Sakakima

IPC分类号： G11B5/012 ,  G11B5/11 ,  G11B5/39 ,  G11B5/40

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/11 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3916 ,  G11B5/3925 ,  G11B5/398 ,  G11B5/40 ,  G11B2005/3996

摘要： The present invention provides a magnetic head having improved characteristics, using a magnetoresistive device in which current flows across the film plane such as a TMR device. In a first magnetic head of the present invention, when the area of a non-magnetic layer is defined as a device cross-section area, and the area of a yoke is defined as a yoke area, viewed along the direction perpendicular to the surface of the substrate over which the yoke and the magnetoresistive device are formed, then the device cross-section area is not less than 30% of the yoke area, so that a resistance increase of the device cross-section area is suppressed. In a second magnetic head of the present invention, a magnetoresistive device is formed on a substrate, and a yoke is provided above a non-magnetic layer constituting the device. In a third magnetic head of the present invention, the free layer of the magnetoresistive device includes at least two magnetic films and at least one non-magnetic film that are laminated alternately, and the thickness of the non-magnetic layer is not less than 2 nm and not more than 10 nm, and magnetostatic coupling is dominant. In a fourth magnetic head of the present invention, a magnetic gap is provided adjacent to the magnetoresistive device and the magnetic films are coupled antiferromagnetically.

摘要翻译： 本发明提供一种具有改进特性的磁头，其使用磁阻装置，其中电流流过诸如TMR装置的膜平面。 在本发明的第一磁头中，当非磁性层的面积被定义为器件横截面积，并且将磁轭的面积定义为磁轭面积时，沿垂直于表面的方向观察 在形成磁轭和磁阻装置的基板上，器件截面积不小于磁轭面积的30％，从而可以抑制器件截面积的电阻增加。 在本发明的第二磁头中，在基板上形成磁阻装置，在构成装置的非磁性层的上方设置磁轭。 在本发明的第三磁头中，磁阻装置的自由层包括至少两个磁性膜和交替层叠的至少一个非磁性膜，非磁性层的厚度不小于2 nm，不大于10nm，静磁耦合为主。 在本发明的第四磁头中，与磁阻装置相邻设置有磁隙，并且磁膜与反铁磁耦合。

公开(公告)号：US20050111147A1

公开(公告)日：2005-05-26

申请号：US11024336

申请日：2004-12-28

申请人： Masayoshi Hiramoto ,  Hiroshi Sakakima ,  Hideaki Adachi ,  Nozomu Matukawa ,  Kenji Iijima ,  Mitsuo Satomi

发明人： Masayoshi Hiramoto ,  Hiroshi Sakakima ,  Hideaki Adachi ,  Nozomu Matukawa ,  Kenji Iijima ,  Mitsuo Satomi

IPC分类号： H01F10/14 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12 ,  G11B5/33 ,  G11B5/127 ,  G11B5/17

CPC分类号： H01L43/08 ,  H01L43/10 ,  H01L43/12 ,  Y10T29/49034 ,  Y10T428/1107

摘要： A magnetoresistive element includes a pair of magnetic layers sandwiching an intermediate layer, at least one of the magnetic layers includes an oxide ferrite having a plane orientation with a (100), (110) or (111) plane. The oxide can be formed by sputtering with an oxide target while applying a bias voltage to a substrate including a plane on which the oxide ferrite is to be formed so as to adjust the amount of oxygen supplied to the oxide ferrite from the target. One of the magnetic layers is a pinned magnetic layer, and the pinned magnetic layer includes at least one non-magnetic film and magnetic films sandwiching the non-magnetic film. The magnetic films can be coupled with one another by magnetostatic coupling or antiferromagnetic coupling, generating negative magnetic coupling. Magnetic shifts are reduced by generating negative coupling. This element also has an improved thermal resistance.

摘要翻译： 磁阻元件包括夹着中间层的一对磁性层，至少一个磁性层包括具有（100），（110）或（111）面的平面取向的氧化物铁氧体。 氧化物可以通过用氧化物靶溅射形成，同时向包括要在其上形成氧化物铁氧体的平面的衬底施加偏置电压，以便调节从目标物供给到氧化物铁氧体的氧的量。 磁性层中的一个是钉扎磁性层，并且被钉扎的磁性层包括至少一个非磁性膜和夹住非磁性膜的磁性膜。 磁膜可以通过静磁耦合或反铁磁耦合彼此耦合，产生负磁耦合。 通过产生负耦合来减少磁位移。 该元件还具有改善的耐热性。