公开(公告)号：USD683634S1

公开(公告)日：2013-06-04

申请号：US29417020

申请日：2012-03-29

申请人： Yasuo Hayakawa ,  Satoshi Waga ,  Hideki Kamimura ,  Masaya Yamatani ,  Motoki Hirayama

设计人： Yasuo Hayakawa ,  Satoshi Waga ,  Hideki Kamimura ,  Masaya Yamatani ,  Motoki Hirayama

公开(公告)号：US20090316308A1

公开(公告)日：2009-12-24

申请号：US12548982

申请日：2009-08-27

申请人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

发明人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

IPC分类号： G11B5/127

CPC分类号： G11B5/3903 ,  G11B5/3163 ,  G11B5/398

摘要： A CPP giant magnetoresistive head includes lower and upper shield layers, and a giant magnetoresistive element disposed between the upper and lower shield layers and including a pinned magnetic layer, a free magnetic layer and a nonmagnetic layer disposed between the pinned magnetic layer and the free magnetic layer. In the CPP giant magnetoresistive head, the pinned magnetic layer extends to the rear of the nonmagnetic layer and the free magnetic layer in the height direction, and the dimension of the pinned magnetic layer in the height direction is larger than that in the track width direction. Also, the pinned magnetic layer comprises a magnetic material having a positive magnetostriction constant or a magnetic material having high coercive force, and the end of the pinned magnetic layer is exposed at a surface facing a recording medium.

摘要翻译： CPP巨磁阻头包括下屏蔽层和上屏蔽层，以及设置在上屏蔽层和下屏蔽层之间的巨磁阻元件，包括固定磁性层，自由磁性层和设置在被钉扎的磁性层和自由磁性层之间的非磁性层 层。 在CPP巨磁阻磁头中，被钉扎的磁性层在高度方向上延伸到非磁性层的后部和自由磁性层，并且被钉扎的磁性层在高度方向上的尺寸大于轨道宽度方向上的尺寸 。 此外，钉扎磁性层包括具有正的磁致伸缩常数的磁性材料或具有高矫顽力的磁性材料，并且被钉扎的磁性层的端部在面向记录介质的表面上暴露。

公开(公告)号：US20060291097A1

公开(公告)日：2006-12-28

申请号：US11424495

申请日：2006-06-15

申请人： Kenji Honda ,  Naohiro Ishibashi ,  Daigo Aoki ,  Yasuo Hayakawa ,  Yoshihiro Nishiyama ,  Toshihiro Kobayashi

发明人： Kenji Honda ,  Naohiro Ishibashi ,  Daigo Aoki ,  Yasuo Hayakawa ,  Yoshihiro Nishiyama ,  Toshihiro Kobayashi

IPC分类号： G11B5/147 ,  G11B5/33

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G11B5/3163 ,  G11B5/3912 ,  G11B5/3932 ,  G11B2005/3996 ,  H01F10/3254 ,  H01F41/308

摘要： A magnetic sensing element including a laminate and a bias layer is provided. A first reactive-ion-etching (RIE) stop layer is disposed on a free magnetic layer. Second RIE stop layers are disposed on bias layers. The first and second RIE stop layers function as stop layers when layers on the first and second RIE stop layers are removed by reactive ion etching in a production process. Reactive ion etching is completed when the first RIE stop layer and the second RIE stop layers are exposed, the first and second RIE stop layers being disposed at almost the same height. Also provided is a process for producing the magnetic sensing element.

摘要翻译： 提供了包括层叠体和偏置层的磁感应元件。 第一反应离子蚀刻（RIE）停止层设置在自由磁性层上。 第二RIE停止层设置在偏置层上。 当生产过程中通过反应离子蚀刻去除第一和第二RIE停止层上的层时，第一和第二RIE停止层用作停止层。 当第一RIE停止层和第二RIE停止层暴露时，第一和第二RIE停止层设置在几乎相同的高度处，完成反应离子蚀刻。 还提供了一种用于制造磁感测元件的方法。

公开(公告)号：US06885526B2

公开(公告)日：2005-04-26

申请号：US09834085

申请日：2001-04-11

申请人： Yoshihiro Nishiyama ,  Yasuo Hayakawa

发明人： Yoshihiro Nishiyama ,  Yasuo Hayakawa

IPC分类号： G11B5/235 ,  G11B5/31 ,  G11B5/39 ,  G11B5/127

CPC分类号： G11B5/3903 ,  G11B5/235 ,  G11B5/3109 ,  Y10T29/49032

摘要： A thin film magnetic head includes a gap layer which may be made of a SiON film to increase Young's modulus E to about 123.3 (GPa) or more. As a result, the gap layer is less pushed from a surface facing a recording medium in the height direction during lapping of the surface facing the recording medium, thereby decreasing the amount of protrusion of the gap layer from the facing surface as compared with a conventional magnetic head.

摘要翻译： 薄膜磁头包括可由SiON膜制成的间隙层，以将杨氏模量E提高到约123.3（GPa）以上。 结果，在与记录介质相对的表面的研磨期间，间隙层在与记录介质相对的记录介质的表面上较少地被推压，从而与常规的相比，减少了间隙层与相对表面的突出量 磁头。

公开(公告)号：US06394212B1

公开(公告)日：2002-05-28

申请号：US09367713

申请日：1999-08-20

申请人： Yutaka Takano ,  Yasuo Hayakawa ,  Hideo Hokari ,  Kazutaka Tateishi

发明人： Yutaka Takano ,  Yasuo Hayakawa ,  Hideo Hokari ,  Kazutaka Tateishi

IPC分类号： B62D3306

CPC分类号： E02F9/0891 ,  E02F9/18 ,  Y10S521/905 ,  Y10T428/25 ,  Y10T428/3154 ,  Y10T428/31598 ,  Y10T428/31609

摘要： A hydrophilic film coating (11) is formed on outer surfaces of cab (5), equipment housing cover (6) and counterweight (7) of an upper rotary body (2), so that a water film (18) is formed on the surface of the hydrophilic film coating by raindrops or at the time of rainfall. By formation of the water film (18), contaminant substances (13) which have deposited on the outer surfaces of the upper rotary body (2) are urged to float up and carried away with dripping water of the water film (18). As a consequence, it becomes possible to prevent development of raindrop stains on the outer surfaces of the upper rotary body (2) and, even if spattered particles of grease have deposited on the outer surfaces of the upper rotary body (2), such contaminants can be easily washed off, thereby permitting to maintain the quality in outer appearance of the upper rotary body (2).

摘要翻译： 在上部旋转体（2）的驾驶室（5），设备壳体盖（6）和配重（7）的外表面上形成亲水膜涂层（11），从而在 亲水性薄膜涂层的表面由雨滴或降雨时的表面。 通过形成水膜（18），沉积在上部旋转体（2）的外表面上的污染物质（13）被推向浮起并带走水膜（18）的滴水。 结果，可以防止上旋转体（2）的外表面上的雨滴污染的发展，并且即使在上旋转体（2）的外表面上沉积有喷溅的润滑脂颗粒，这种污染物 可以容易地洗去，从而能够保持上部旋转体（2）的外观质量。

公开(公告)号：US6140902A

公开(公告)日：2000-10-31

申请号：US904058

申请日：1997-07-31

申请人： Kiyohito Yamasawa ,  Yasuo Hayakawa ,  Takashi Hatanai ,  Akihiro Makino ,  Yutaka Naito ,  Naoya Hasegawa

发明人： Kiyohito Yamasawa ,  Yasuo Hayakawa ,  Takashi Hatanai ,  Akihiro Makino ,  Yutaka Naito ,  Naoya Hasegawa

IPC分类号： H01F10/14 ,  H01F10/187 ,  H01F17/00 ,  H01F27/30

CPC分类号： H01F10/187 ,  H01F17/0006 ,  H01F2017/0066

摘要： A thin magnetic element which comprises a coil pattern formed on at least one side of a substrate and a thin magnetic film formed on the coil pattern, wherein:said thin magnetic film is for++med to a thickness of 0.5 .mu.m or greater but 8 .mu.m or smaller;and at least one of the following conditions, that is, assuming that the thickness and width of a coil conductor constituting the coil pattern are t and a, respectively, an aspect ratio t/a of the coil conductor satisfies the following relationship: 0.035.ltoreq.t/a.ltoreq.0.35;and assuming that the width of the conductor constituting the coil pattern is a and the distance between the mutually adjacent coil conductors in the coil pattern is b, the following relationship: 0.2.ltoreq.a/(a+b) is satisfied.

摘要翻译： 一种薄磁性元件，其包括形成在基板的至少一侧的线圈图案和形成在线圈图案上的薄磁膜，其中：所述薄磁膜用于++ med至0.5μm或更大的厚度，但是 8亩以下; 以及以下条件中的至少一个，即构成线圈图案的线圈导体的厚度和宽度分别为t和a，线圈导体的纵横比t / a满足以下关系：0.035 < /=t/a

公开(公告)号：US07800867B2

公开(公告)日：2010-09-21

申请号：US12548982

申请日：2009-08-27

申请人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

发明人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

IPC分类号： G11B5/39

CPC分类号： G11B5/3903 ,  G11B5/3163 ,  G11B5/398

摘要： A CPP giant magnetoresistive head includes lower and upper shield layers, and a giant magnetoresistive element disposed between the upper and lower shield layers and including a pinned magnetic layer, a free magnetic layer and a nonmagnetic layer disposed between the pinned magnetic layer and the free magnetic layer. In the CPP giant magnetoresistive head, the pinned magnetic layer extends to the rear of the nonmagnetic layer and the free magnetic layer in the height direction, and the dimension of the pinned magnetic layer in the height direction is larger than that in the track width direction. Also, the pinned magnetic layer comprises a magnetic material having a positive magnetostriction constant or a magnetic material having high coercive force, and the end of the pinned magnetic layer is exposed at a surface facing a recording medium.

摘要翻译： CPP巨磁阻头包括下屏蔽层和上屏蔽层，以及设置在上屏蔽层和下屏蔽层之间的巨磁阻元件，包括钉扎磁性层，自由磁性层和设置在被钉扎的磁性层和自由磁性层之间的非磁性层 层。 在CPP巨磁阻磁头中，被钉扎的磁性层在高度方向上延伸到非磁性层的后部和自由磁性层，并且被钉扎的磁性层在高度方向上的尺寸大于轨道宽度方向上的尺寸 。 此外，钉扎磁性层包括具有正的磁致伸缩常数的磁性材料或具有高矫顽力的磁性材料，并且被钉扎的磁性层的端部在面向记录介质的表面上暴露。

公开(公告)号：US07365949B2

公开(公告)日：2008-04-29

申请号：US11141543

申请日：2005-05-31

申请人： Yasuo Hayakawa ,  Yoshihiro Nishiyama ,  Digo Aoki ,  Masamichi Saito ,  Naohiro Ishibashi ,  Kenji Honda

发明人： Yasuo Hayakawa ,  Yoshihiro Nishiyama ,  Digo Aoki ,  Masamichi Saito ,  Naohiro Ishibashi ,  Kenji Honda

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/39 ,  G11B5/3163 ,  G11B5/398

摘要： A CPP giant magnetoresistive head includes a lower shield layer; an upper shield layer; and a giant magnetoresistive element (GMR) between the lower shield layer and the upper shield layer. The GMR includes a nonmagnetic material layer; a pinned magnetic layer; and a free magnetic layer. The pinned layer and the free layer are laminated with the nonmagnetic layer provided therebetween. A current flows perpendicularly to a film plane of the GMR, the pinned magnetic layer extends in the height direction longer than in a track-width direction and includes a first portion in the GMR. The first portion is disposed above or below the nonmagnetic layer and the free layer. A second portion is behind the nonmagnetic layer and the free layer in the height direction. The first and second portions are in the same plane. The width of the pinned layer in the track-width direction in the first portion is greater than that in the second portion.

摘要翻译： CPP巨磁阻头包括下屏蔽层; 上屏蔽层; 和在下屏蔽层和上屏蔽层之间的巨磁阻元件（GMR）。 GMR包括非磁性材料层; 钉扎磁性层; 和自由磁性层。 被钉扎层和自由层与其间设置的非磁性层层叠。 A电流垂直于GMR的膜平面流动，被钉扎的磁性层在高度方向上比在轨道宽度方向上延伸更长，并且包括GMR中的第一部分。 第一部分设置在非磁性层和自由层的上方或下方。 第二部分在非磁性层的后面，高度方向上是自由层。 第一和第二部分在同一平面内。 第一部分中的钉扎宽度方向上的被钉扎层的宽度大于第二部分的宽度。

公开(公告)号：US07220499B2

公开(公告)日：2007-05-22

申请号：US10823484

申请日：2004-04-13

申请人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

发明人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

IPC分类号： G11B5/127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3929 ,  G11B2005/3996 ,  H01F10/3218 ,  H01F10/3263 ,  H01F10/3272 ,  Y10T428/1121 ,  Y10T428/1143 ,  Y10T428/1171 ,  Y10T428/1193

摘要： A CPP giant magnetoresistive head includes lower and upper shield layers with a predetermined distance therebetween, and a giant magnetoresistive element (GMR) including pinned and free magnetic layers disposed between the upper and lower shield layers with a nonmagnetic layer interposed between the pinned and free magnetic layers. A current flows perpendicularly to the film plane of the GMR. The magnetoresistive head further includes an antiferromagnetic layer (an insulating AF of Ni—O or α-Fe2O3) provided in the rear of the GMR in a height direction to make contact with the upper or lower surface of a rear portion of the pinned magnetic layer which extends in the height direction, and an exchange coupling magnetic field is produced at the interface with the upper or lower surface, so that the magnetization direction of the pinned magnetic layer is pinned by the exchange coupling magnetic field in the height direction.

摘要翻译： CPP巨磁阻头包括其间具有预定距离的下屏蔽层和上屏蔽层，以及包括固定和自由磁性层的巨磁阻元件（GMR），其设置在上屏蔽层和下屏蔽层之间，其中非磁性层插入在固定和自由磁性层之间 层。 A电流垂直于GMR的膜平面流动。 磁阻头还包括设置在GMR后部的反铁磁层（Ni-O或α-Fe 2 O 3 3 3的绝缘AF），其高度方向为 与在高度方向上延伸的被钉扎磁性层的后部的上表面或下表面接触，并且在与上表面或下表面的界面处产生交换耦合磁场，使得固定的磁化方向 磁性层被高度方向的交换耦合磁场固定。

公开(公告)号：US06707649B2

公开(公告)日：2004-03-16

申请号：US10103358

申请日：2002-03-20

申请人： Naoya Hasegawa ,  Yasuo Hayakawa

发明人： Naoya Hasegawa ,  Yasuo Hayakawa

IPC分类号： G11B539

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B5/40 ,  G11B2005/3996

摘要： A current limiting layer including a mixture of a conductive portion and an insulating portion is provided on the side (upper side) of a free magnetic layer which a sensing current reaches. This can decrease the effective element area while maintaining the large optical element area. Therefore, a magnetic sensing element can easily be formed by using a photolithography technique having the same degree of accuracy as a conventional technique, and a CPP type magnetic sensing element having high reproduced output can be manufactured.

摘要翻译： 在传感电流达到的自由磁性层的一侧（上侧）上设置包括导电部分和绝缘部分的混合物的限流层。 这可以在保持大的光学元件面积的同时减小有效元件面积。 因此，通过使用与常规技术相同的精度的光刻技术可以容易地形成磁感测元件，并且可以制造具有高再现输出的CPP型磁感测元件。