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1. 发明授权

US07440239B2 Magneto-resistance effect element and reproducing head 有权
标题翻译：磁阻效应元件和再现头
公开(公告)号：US07440239B2
公开(公告)日：2008-10-21
申请号：US10671586
申请日：2003-09-29
申请人： Yuzo Kamiguchi , Masayuki Takagishi , Yuichi Ohsawa
发明人： Yuzo Kamiguchi , Masayuki Takagishi , Yuichi Ohsawa
IPC分类号： G11B5/127
CPC分类号： G11B5/3903 , G01R33/09 , G11B5/39 , G11B2005/0002 , H01L43/08
摘要： It is possible to obtain sensitivity which can achieve an excellent error rate with a high recording density. There are provided a magnetization free layer which has two opposed main surfaces, one of which is set to be generally parallel to an air bearing surface; an intermediate layer which is formed on an opposite side face of the magnetization free layer from a medium to come in contact with the magnetization free layer; and a pair of magnetization pinned layers which are formed on an opposite side face of the intermediate layer from the magnetization free layer to come in contact with the intermediate layer and extend outwardly. A sense current flows from one magnetization pinned layer to the other magnetization pinned layer through the magnetization free layer.
摘要翻译：可以获得可以以高记录密度实现出色错误率的灵敏度。提供了一个磁化自由层，它具有两个相对的主表面，其中一个主表面大致平行于空气轴承表面; 在与磁化自由层接触的介质上形成在磁化自由层的相对侧面上的中间层; 以及一对磁化固定层，其形成在中间层的与磁化自由层相对的侧面上以与中间层接触并向外延伸。感测电流通过无磁化层从一个磁化固定层流向另一个磁化固定层。

2. 发明授权

US07494724B2 Magnetoresistance effect element, its manufacturing method, magnetic reproducing element and magnetic memory 有权
标题翻译：磁阻效应元件，其制造方法，磁再现元件和磁存储器
公开(公告)号：US07494724B2
公开(公告)日：2009-02-24
申请号：US11773294
申请日：2007-07-03
申请人： Shiho Okuno , Yuichi Ohsawa , Shigeru Haneda , Yuzo Kamiguchi , Tatsuya Kishi
发明人： Shiho Okuno , Yuichi Ohsawa , Shigeru Haneda , Yuzo Kamiguchi , Tatsuya Kishi
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , B32B7/02 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/39 , G11B5/3929 , G11B2005/3996 , G11C11/16 , H01L43/12 , Y10T29/49043 , Y10T29/49044 , Y10T428/1114 , Y10T428/1143 , Y10T428/12465 , Y10T428/12931 , Y10T428/12986 , Y10T428/325
摘要： A method of manufacturing a magnetoresistance effect element includes forming an insulating layer on a first ferromagnetic layer, forming an aperture reaching the first ferromagnetic layer by thrusting a needle from the top surface of the insulating layer, and depositing a ferromagnetic material to form a second ferromagnetic layer overlying the insulating layer which buries the aperture. The aperture can have an opening width not larger than 20 nm. A current flowing between the first ferromagnetic layer and the needle can be monitored, and thrusting of the needle an be interrupted when the current reaches a predetermined value.
摘要翻译：一种制造磁阻效应元件的方法包括：在第一铁磁层上形成绝缘层，通过从绝缘层的顶表面推出针而形成到达第一铁磁层的孔，以及沉积铁磁材料以形成第二铁磁体覆盖掩埋孔的绝缘层的层。孔径可以具有不大于20nm的开口宽度。可以监测在第一铁磁层和针之间流动的电流，并且当电流达到预定值时针头的推压被中断。

3. 发明授权

US07355883B2 Magnetoresistance effect element, its manufacturing method, magnetic reproducing element and magnetic memory 有权
标题翻译：磁阻效应元件，其制造方法，磁再现元件和磁存储器
公开(公告)号：US07355883B2
公开(公告)日：2008-04-08
申请号：US11006594
申请日：2004-12-08
申请人： Shiho Okuno , Yuichi Ohsawa , Shigeru Haneda , Yuzo Kamiguchi , Tatsuya Kishi
发明人： Shiho Okuno , Yuichi Ohsawa , Shigeru Haneda , Yuzo Kamiguchi , Tatsuya Kishi
IPC分类号： G11C11/00
CPC分类号： H01L43/08 , B32B7/02 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/39 , G11B5/3929 , G11B2005/3996 , G11C11/16 , H01L43/12 , Y10T29/49043 , Y10T29/49044 , Y10T428/1114 , Y10T428/1143 , Y10T428/12465 , Y10T428/12931 , Y10T428/12986 , Y10T428/325
摘要： A magnetoresistance effect element includes a first ferromagnetic layer (1), insulating layer (3) overlying the first ferromagnetic layer, and second ferromagnetic layer (2) overlying the insulating layer. The insulating layer has formed a through hole (A) having an opening width not larger than 20 nm, and the first and second ferromagnetic layers are connected to each other via the through hole.
摘要翻译：磁阻效应元件包括第一铁磁层（1），覆盖第一铁磁层的绝缘层（3）和覆盖绝缘层的第二铁磁层（2）。绝缘层形成了具有不大于20nm的开口宽度的通孔（A），并且第一和第二铁磁层经由通孔相互连接。

4. 发明授权

US06483673B1 Differential detection magnetoresistance head with laminated structure 失效
标题翻译：差分检测磁阻头与层叠结构
公开(公告)号：US06483673B1
公开(公告)日：2002-11-19
申请号：US09085101
申请日：1998-05-28
申请人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Yuzo Kamiguchi , Susumu Hashimoto , Tomomi Funayama , Hiromi Fuke , Junichi Akiyama , Kazuhiro Saito
发明人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Yuzo Kamiguchi , Susumu Hashimoto , Tomomi Funayama , Hiromi Fuke , Junichi Akiyama , Kazuhiro Saito
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/1278 , G11B5/3903 , G11B5/3954 , G11B2005/0029 , G11B2005/3996
摘要： A GMR element part is formed of a laminated structure which comprises at least one pair of ferromagnetic layers and a nonmagnetic intermediate layer interposed between the pair of ferromagnetic layers. Signal magnetic field detecting ferromagnetic layers will be optionally disposed one each outside the pair of ferromagnetic layers. The GMR element part consists of a laminated structure which is provided with one pair of GMR ferromagnetic layers opposed to each other across a nonmagnetic intermediate layer or a laminated structure which is provided with one pair of GMR ferromagnetic layer opposed to each other across a nonmagnetic intermediate layer and at least one low-permeability ferromagnetic layer disposed there between through the medium of a nonmagnetic intermediate layer. The GMR element part functions as a read head for sensing the resistance which is varied when signal magnetic fields of mutual opposite directions are applied to the pair of GMR ferromagnetic layers and displaying a differential detection type output response. A granular type ferromagnetic intermediate layer will be used as the GMR element part.
摘要翻译： GMR元件部分由层叠结构形成，该叠层结构包括至少一对铁磁层和介于一对铁磁层之间的非磁性中间层。信号磁场检测铁磁层将可选地布置在一对铁磁层的外侧。 GMR元件部分由层叠结构构成，该叠层结构具有一对跨越非磁性中间层彼此相对的GMR铁磁体层或层叠结构，该层叠结构具有跨越非磁性中间体彼此相对的一对GMR铁磁层层和至少一个通过非磁性中间层的介质设置在其间的低磁导率铁磁层。 GMR元件部分用作读取头，用于感测当相互相反方向的信号磁场施加到一对GMR铁磁层并且显示差分检测型输出响应时变化的电阻。将使用粒状铁磁中间层作为GMR元件部分。

5. 发明授权

US06395388B1 Magnetoresistance effect element 失效
标题翻译：磁阻效应元件
公开(公告)号：US06395388B1
公开(公告)日：2002-05-28
申请号：US09442032
申请日：1999-11-17
申请人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Susumu Hashimoto , Atsuhito Sawabe , Yuzo Kamiguchi , Masashi Sahashi , Hiromi Fuke
发明人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Susumu Hashimoto , Atsuhito Sawabe , Yuzo Kamiguchi , Masashi Sahashi , Hiromi Fuke
IPC分类号： G11B566
CPC分类号： B82Y25/00 , B82Y10/00 , E05B17/2007 , E05B67/36 , E05C1/04 , G11B5/3903 , G11B5/3932 , G11B2005/3996 , H01F10/324 , H01F10/325 , H01F10/3268 , H01F10/3286 , H01L43/08 , H01L43/10 , Y10S428/90 , Y10T70/498 , Y10T70/5319 , Y10T292/1025 , Y10T428/11 , Y10T428/1107 , Y10T428/26 , Y10T428/265
摘要： The present invention provides an exchange coupling film having a stacked-film-structure consisting of a ferromagnetic film made of at least one material of Fe, Co and Ni, and an antiferromagnetic film, wherein the exchange coupling film made of a ferromagnetic material to which an element is added, is provided at the interface between the ferromagnetic film and the antiferromagnetic film so as to improve the lattice matching, which results in the enhancement of the exchange coupling force, and a magnetoresistance effect element including such an exchange coupling film as described above, and an electrode for supplying a current to the ferromagnetic film which constitutes the exchange coupling film.
摘要翻译：本发明提供一种交换耦合膜，其具有由由Fe，Co和Ni的至少一种材料制成的铁磁膜和反铁磁膜构成的层叠膜结构，其中由铁磁材料制成的交换耦合膜，在铁磁膜和反铁磁膜之间的界面处设置元件，以改善晶格匹配，这导致交换耦合力的增强，以及包括如上所述的这种交换耦合膜的磁电阻效应元件以及用于向构成交换耦合膜的铁磁膜提供电流的电极。

6. 发明授权

US6111722A Magnetoresistance effect element having improved biasing films, and magnetic head and magnetic recording device using the same 失效
标题翻译：具有改进的偏置膜的磁阻效应元件以及使用其的磁头和磁记录装置
公开(公告)号：US6111722A
公开(公告)日：2000-08-29
申请号：US71040
申请日：1998-05-04
申请人： Hideaki Fukuzawa , Yuzo Kamiguchi , Hitoshi Iwasaki , Yuichi Ohsawa
发明人： Hideaki Fukuzawa , Yuzo Kamiguchi , Hitoshi Iwasaki , Yuichi Ohsawa
IPC分类号： G11B5/39 , G11B5/48 , G11C11/15 , H01F10/00 , H01F10/08 , H01F10/32 , H01L21/8246 , H01L27/105 , H01L43/08
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3967 , H01L43/08 , G11B2005/3996 , G11B5/488
摘要： A spin valve GMR element comprises a pair of magnetic biasing films disposed with a predetermined gap and a spin valve GMR film disposed in such a manner that at least both edge portions thereof are stacked on the pair of magnetic biasing films. The spin valve GMR film has a free layer containing a magnetic layer large in its saturation magnetization such as a Co containing magnetic layer. The magnetic biasing film has a laminate film composed of a high saturation magnetization magnetic layer and a magnetic hard layer. The high saturation magnetization layer, for a saturation magnetization Ms.sup.free of a free layer and a saturation magnetization of Ms.sup.hard of a magnetic hard layer, has a saturation magnetization Ms.sup.high satisfying at least one of Ms.sup.high .gtoreq.Ms.sup.free and Ms.sup.high .gtoreq.Ms.sup.hard. According to such a bias structure, when a spin valve GMR element of an over laid structure is narrowed in its track, Barkhausen noise can be effectively suppressed from occurring.
摘要翻译：自旋阀GMR元件包括以预定间隙设置的一对磁偏置膜和以至少两个边缘部分堆叠在一对磁偏置膜上的方式设置的自旋阀GMR膜。自旋阀GMR膜具有包含其饱和磁化强度大的含有Co的磁性层的磁性层的自由层。磁偏置膜具有由高饱和磁化磁化层和磁性硬质层构成的层叠膜。高饱和磁化层，对于磁性硬层的自由层的饱和磁化强度Msfree和Mshard的饱和磁化强度，具有满足Mshigh> / = Msfree和Mshigh> / = Mshard中的至少一个的饱和磁化强度Mshigh。根据这种偏压结构，当过度铺设结构的自旋阀GMR元件在其轨道上变窄时，可以有效地抑制巴克豪森噪声的发生。

7. 发明授权

US5738946A Magnetoresistance effect element 失效
标题翻译：磁阻效应元件
公开(公告)号：US5738946A
公开(公告)日：1998-04-14
申请号：US652784
申请日：1996-05-23
申请人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Susumu Hashimoto , Atsuhito Sawabe , Yuzo Kamiguchi , Masashi Sahashi
发明人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Susumu Hashimoto , Atsuhito Sawabe , Yuzo Kamiguchi , Masashi Sahashi
IPC分类号： G11B5/39 , H01F10/32 , H01L43/08 , H01L43/10 , G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , H01F10/324 , H01F10/325 , H01F10/3268 , H01L43/08 , H01L43/10 , G11B2005/3996 , G11B5/3932 , Y10S428/90 , Y10S428/928 , Y10T428/1121 , Y10T428/12465 , Y10T428/12493 , Y10T428/12542 , Y10T428/12576 , Y10T428/1259 , Y10T428/12611 , Y10T428/1266 , Y10T428/12674 , Y10T428/1275 , Y10T428/12806 , Y10T428/12854 , Y10T428/12861 , Y10T428/12875 , Y10T428/12882 , Y10T428/12889 , Y10T428/12896 , Y10T428/12903 , Y10T428/1291 , Y10T428/12931
摘要： It is an object of the present invention to provide a magnetoresistance effect element which has a film with a spin valve structure or an artificial lattice film having good soft magnetic characteristics, and which can be applied to a high-sensitivity magnetic head. The present invention provides a magneto-resistance effect element including a stacked film formed on a substrate by sequentially stacking a ferromagnetic film containing as its main constituents at least one elements selected from the group consisting of Co, Fe, and Ni, a nonmagnetic film, and the ferromagnetic film, wherein the two ferromagnetic films are not coupled with each other, and the closest packed plane of each ferromagnetic film is oriented in a direction perpendicular to the film surface.
摘要翻译：本发明的目的是提供一种磁阻效应元件，其具有具有自旋阀结构的膜或具有良好软磁特性的人造网格膜，并且可以应用于高灵敏度磁头。本发明提供一种磁电阻效应元件，其包括：通过依次层叠含有选自Co，Fe和Ni中的至少一种元素作为其主要成分的铁磁性膜，形成在基板上的非磁性膜，和铁磁膜，其中两个铁磁膜彼此不耦合，并且每个铁磁膜的最紧密的堆积平面在垂直于膜表面的方向上取向。

8. 发明授权

US5585199A Magnetoresistance effect head 失效
标题翻译：磁阻效应头
公开(公告)号：US5585199A
公开(公告)日：1996-12-17
申请号：US303014
申请日：1994-09-08
申请人： Yuzo Kamiguchi , Susumu Hashimoto , Hitoshi Iwasaki , Yuichi Ohsawa , Masashi Sahashi
发明人： Yuzo Kamiguchi , Susumu Hashimoto , Hitoshi Iwasaki , Yuichi Ohsawa , Masashi Sahashi
IPC分类号： G11B5/012 , G11B5/39 , H01F10/32 , H01F1/00 , G11B21/00
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , H01F10/3281 , G11B2005/3996 , G11B5/012 , H01F10/3295 , Y10S428/928 , Y10T428/12465 , Y10T428/12535
摘要： A magnetoresistance effect head is disclosed which is provided with a spin valve film of the three-layer laminate construction comprising a pair of magnetic layers made of a Co-based alloy and a nonmagnetic intermediate layer interposed between the pair of magnetic layers. This magnetoresistance effect head satisfies the expressions, 3.ltoreq.d.sub.1 .ltoreq.7, 3.ltoreq.d.sub.2 .ltoreq.7, and 0.ltoreq. (d.sub.1 -d.sub.2)/d.sub.1 .ltoreq.0.40, wherein d.sub.1 and d.sub.2 stand for the thicknesses (nm) of the pair of magnetic layers (providing d.sub.1 .gtoreq.d.sub.2). A soft magnetic layer of high resistance is disposed contiguously to that of the pair of magnetic layers which has the direction of magnetization thereof varied by an external magnetic layer. The total thickness of this soft magnetic layer and the magnetic layer contiguous thereto is in the range of from 5 to 40 nm. In the case of a magnetoresistance effect head which is provided with a spin valve film of the five-layer laminate construction, the thicknesses (nm), d.sub.1 and d.sub.2, of the two outer magnetic layers similarly satisfy the conditions mentioned above. Further, the thickness (nm), d.sub.3, of the center magnetic layer satisfies the expression, 1.ltoreq.d.sub.3 .ltoreq.2/3d.sub.1. As a result, the magnetoresistance effect head acquires the ability to produce a large rate of change of magnetic resistance with high repeatability.
摘要翻译：公开了一种磁阻效应头，其具有三层层压结构的自旋阀膜，该三层层压结构包括一对由Co基合金制成的磁性层和介于该一对磁性层之间的非磁性中间层。该磁电阻效应头满足表达式，其中d1和d2表示为3 / = d2）。高电阻的软磁性层与具有由外部磁性层变化的磁化方向的一对磁性层的磁性层相邻设置。该软磁性层和与其相邻的磁性层的总厚度为5〜40nm的范围。在具有五层层叠结构的自旋阀膜的磁阻效应头的情况下，两个外磁层的厚度（nm），d1和d2类似地满足上述条件。此外，中心磁性层的厚度（nm），d3满足表达式1，d3，其中E 2，结果，磁阻效应头获得以高重复性产生大的磁阻变化率的能力。

9. 发明授权

US5549978A Magnetoresistance effect element 失效
标题翻译：磁阻效应元件
公开(公告)号：US5549978A
公开(公告)日：1996-08-27
申请号：US144258
申请日：1993-11-01
申请人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Susumu Hashimoto , Atsuhito Sawabe , Yuzo Kamiguchi , Masashi Sahashi
发明人： Hitoshi Iwasaki , Yuichi Ohsawa , Reiko Kondoh , Susumu Hashimoto , Atsuhito Sawabe , Yuzo Kamiguchi , Masashi Sahashi
IPC分类号： G11B5/39 , H01F10/32 , H01L43/08 , H01L43/10 , G11B5/66 , B32B9/00
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , H01F10/324 , H01F10/325 , H01F10/3268 , H01L43/08 , H01L43/10 , G11B2005/3996 , G11B5/3932 , Y10S428/90 , Y10S428/928 , Y10T428/1121 , Y10T428/12465 , Y10T428/12493 , Y10T428/12542 , Y10T428/12576 , Y10T428/1259 , Y10T428/12611 , Y10T428/1266 , Y10T428/12674 , Y10T428/1275 , Y10T428/12806 , Y10T428/12854 , Y10T428/12861 , Y10T428/12875 , Y10T428/12882 , Y10T428/12889 , Y10T428/12896 , Y10T428/12903 , Y10T428/1291 , Y10T428/12931
摘要： It is an object of the present invention to provide a magnetoresistance effect element which has a film with a spin valve structure or an artificial lattice film having good soft magnetic characteristics, and which can be applied to a high-sensitivity magnetic head. The present invention provides a magnetoresistance effect element including a stacked film formed on a substrate by sequentially stacking a ferromagnetic film containing as its main constituents at least one elements selected from the group consisting of Co, Fe, and Ni, a nonmagnetic film, and the ferromagnetic film, wherein the two ferromagnetic films are not coupled with each other, and the closest packed plane of each ferromagnetic film is oriented in a direction perpendicular to the film surface.
摘要翻译：本发明的目的是提供一种磁阻效应元件，其具有具有自旋阀结构的膜或具有良好软磁特性的人造网格膜，并且可以应用于高灵敏度磁头。本发明提供一种磁电阻效应元件，其包括通过依次层叠含有作为其主要成分的至少一种选自Co，Fe和Ni的元素的铁磁性膜，非磁性膜，形成在基板上的层叠膜，铁磁膜，其中两个铁磁膜彼此不耦合，并且每个铁磁膜的最紧密的堆积平面在垂直于膜表面的方向上取向。

10. 发明申请

US20080013222A1 MAGNETORESISTANCE EFFECT ELEMENT, ITS MANUFACTURING METHOD, MAGNETIC REPRODUCING ELEMENT AND MAGNETIC MEMORY 有权
标题翻译：磁阻效应元件及其制造方法，磁复制元件和磁记忆
公开(公告)号：US20080013222A1
公开(公告)日：2008-01-17
申请号：US11773294
申请日：2007-07-03
申请人： Shiho OKUNO , Yuichi Ohsawa , Shigeru Haneda , Yuzo Kamiguchi , Tatsuya Kishi
发明人： Shiho OKUNO , Yuichi Ohsawa , Shigeru Haneda , Yuzo Kamiguchi , Tatsuya Kishi
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , B32B7/02 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/39 , G11B5/3929 , G11B2005/3996 , G11C11/16 , H01L43/12 , Y10T29/49043 , Y10T29/49044 , Y10T428/1114 , Y10T428/1143 , Y10T428/12465 , Y10T428/12931 , Y10T428/12986 , Y10T428/325
摘要： A method of manufacturing a magnetoresistance effect element includes forming an insulating layer on a first ferromagnetic layer, forming an aperture reaching the first ferromagnetic layer by thrusting a needle from the top surface of the insulating layer, and depositing a ferromagnetic material to form a second ferromagnetic layer overlying the insulating layer which buries the aperture. The aperture can have an opening width not larger than 20 nm. A current flowing between the first ferromagnetic layer and the needle can be monitored, and thrusting of the needle an be interrupted when the current reaches a predetermined value.
摘要翻译：一种制造磁阻效应元件的方法包括：在第一铁磁层上形成绝缘层，通过从绝缘层的顶表面推出针而形成到达第一铁磁层的孔，以及沉积铁磁材料以形成第二铁磁体覆盖掩埋孔的绝缘层的层。孔径可以具有不大于20nm的开口宽度。可以监测在第一铁磁层和针之间流动的电流，并且当电流达到预定值时针头的推压被中断。

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