专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20090310254A1 MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCTION APPARATUS USING THE SAME 审中-公开
标题翻译：磁记录介质和磁记录/再现装置
公开(公告)号：US20090310254A1
公开(公告)日：2009-12-17
申请号：US12421558
申请日：2009-04-09
申请人： Soichi OIKAWA , Hitoshi IWASAKI , Masayuki TAKAGISHI , Kenichiro YAMADA , Tomomi FUNAYAMA , Masahiro TAKASHITA , Katsuhiko KOUI , Mariko SHIMIZU
发明人： Soichi OIKAWA , Hitoshi IWASAKI , Masayuki TAKAGISHI , Kenichiro YAMADA , Tomomi FUNAYAMA , Masahiro TAKASHITA , Katsuhiko KOUI , Mariko SHIMIZU
IPC分类号： G11B5/127 , G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/02 , G11B5/314 , G11B5/743 , G11B5/855 , G11B2005/0005
摘要： According to one embodiment, a recording track has a surface modification layer in the surface region. This surface modification layer has an anisotropic magnetic field Hk reduced from that of a region between adjacent recording tracks.
摘要翻译：根据一个实施例，记录轨道在表面区域中具有表面改性层。该表面改性层的各向异性磁场Hk比相邻记录轨道之间的区域减小。

32. 发明授权

US07525772B2 Magnetoresistive device, magnetic reproducing head, and magnetic information reproducing apparatus 有权
标题翻译：磁阻装置，磁再现头和磁信息重放装置
公开(公告)号：US07525772B2
公开(公告)日：2009-04-28
申请号：US11370185
申请日：2006-03-08
申请人： Katsuhiko Koui , Takashi Tateyama, legal representative , Tomomi Funayama , Koichi Kubo , Hitoshi Iwasaki , Hideaki Fukuzawa
发明人： Kohichi Tateyama
IPC分类号： G11B5/39
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , G11B5/3929 , H01L43/08
摘要： A magnetoresistive device includes a magnetoresistive film and a pair of electrodes for applying a sense current substantially perpendicularly to the magnetoresistive film. The magnetoresistive film includes a magnetization pinned film including a first ferromagnetic layer having a magnetization direction substantially pinned in one direction, a magnetization free film including a second ferromagnetic layer whose magnetization direction changes in accordance with an external magnetic field applied thereto, an intermediate layer formed between the magnetization pinned film and the magnetization free film and having an insulating film and a metal conduction portion extending in the film thickness direction of the insulating film, and a layer containing an electrovalent or covalent compound formed near the metal conduction portion.
摘要翻译：磁阻器件包括磁阻膜和用于施加基本垂直于磁阻膜的感测电流的一对电极。磁阻膜包括磁化固定膜，其包括具有在一个方向上基本固定的磁化方向的第一铁磁层，包含其磁化方向根据施加到其的外部磁场而变化的第二铁磁层的无磁化膜，形成的中间层在磁化固化膜和无磁化膜之间具有绝缘膜和在绝缘膜的膜厚度方向上延伸的金属导电部分，以及在金属导电部分附近形成含有电价或共价化合物的层。

33. 发明申请

US20090059423A1 Magnetic recording head and magnetic recording apparatus 有权
标题翻译：磁记录头和磁记录装置
公开(公告)号：US20090059423A1
公开(公告)日：2009-03-05
申请号：US12153490
申请日：2008-05-20
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
IPC分类号： G11B5/33
CPC分类号： G11B5/02 , G11B5/1278 , G11B5/314 , G11B5/3153 , G11B2005/0002
摘要： A magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes operable to pass a current through the laminated body. The laminated body includes a first magnetic layer, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. A lamination direction of the laminated body is substantially parallel to a medium moving direction. In a first direction parallel to an air bearing surface and perpendicular to the lamination direction, the laminated body has a protruding portion that protrudes beyond an end of a surface of the main magnetic pole facing the laminated body.
摘要翻译：磁记录头包括：主磁极; 层压体; 以及可操作以使电流通过层叠体的一对电极。层叠体包括第一磁性层，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。层叠体的层叠方向大致平行于介质移动方向。在平行于空气轴承面并与层叠方向垂直的第一方向上，层叠体具有突出部，该突出部突出超过面对层叠体的主磁极的表面的端部。

34. 发明授权

US07463455B2 Magnetoresistive head having first and second shield layers between first and second lead layers 有权
标题翻译：磁阻头在第一和第二引线层之间具有第一和第二屏蔽层
公开(公告)号：US07463455B2
公开(公告)日：2008-12-09
申请号：US11200161
申请日：2005-08-10
申请人： Tomomi Funayama
发明人： Tomomi Funayama
IPC分类号： G11B5/39 , G11B5/11
CPC分类号： B82Y10/00 , G11B5/3903 , G11B5/3912
摘要： A magnetic head provided with magnetoresistance effect element, the magnetic head comprises first shielding layer superimposed on one surface of the magnetoresistance effect element and whose area is larger than that of this one surface, a first lead layer formed ranging from a portion where the first shielding layer is superimposed on the magnetoresistance effect element to another portion on the first shielding layer and which applies the sense current to the magnetoresistance effect element, a second shielding layer superimposed on another surface of the magnetoresistance effect element opposite to the one surface and whose area is larger than that of the other surface, and a second lead layer formed ranging from a portion where the second shielding layer is superimposed on the magnetoresistance effect element to another portion on the second shielding layer and which applies the sense current to the magnetoresistance effect element.
摘要翻译：一种设置有磁阻效应元件的磁头，磁头包括叠加在磁阻效应元件的一个表面上并且面积大于该一个表面的第一屏蔽层，第一引线层从第一屏蔽层层叠在磁阻效应元件上，并与第一屏蔽层上的另一部分叠加，并将感应电流施加到磁阻效应元件，第二屏蔽层叠加在与该表面相反的磁阻效应元件的另一个表面上，大于其他表面的第二引线层，以及第二引线层，其从第二屏蔽层的重叠在磁阻效应元件上的部分到第二屏蔽层上的另一部分形成，并且将感测电流施加到磁阻效应元件。

35. 发明申请

US20080106826A1 CURRENT-PERPENDICULAR-TO-PLANE MAGNETORESISTANCE EFFECT DEVICE WITH DOUBLE CURRENT DOUBLE LAYERS 审中-公开
标题翻译：具有双电流双层的电流 - 平面磁平面效应器件
公开(公告)号：US20080106826A1
公开(公告)日：2008-05-08
申请号：US11965177
申请日：2007-12-27
申请人： Tomomi Funayama , Masayuki Takagishi , Katsuhiko Koui , Kohichi Tateyama
发明人： Tomomi Funayama , Masayuki Takagishi , Katsuhiko Koui , Kohichi Tateyama
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3906 , G11B5/398 , G11B5/3983 , G11B2005/3996 , H01F10/3259 , H01F10/3263 , H01L43/08
摘要： A magnetoresistance effect element of the dual spin valve type using a current-perpendicular-to-the-plane (CPP) system where a sensing current flows perpendicular to the stacked faces of a plurality of conductive layers, the magnetoresistance effect element comprises a first unit which includes a free layer and a first pinning layer, a second unit which includes the free layer shared with the first unit and a second pinning layer, a first current control layer which is provided in the first unit and limits the flow quantity of the sensing current, and a second current control layer which is provided in the second unit and limits the flow quantity of the sensing current.
摘要翻译：使用电流垂直于平面（CPP）系统的双自旋阀类型的磁阻效应元件，其中感测电流垂直于多个导电层的堆叠面流动，磁阻效应元件包括第一单元其包括自由层和第一钉扎层，第二单元，其包括与第一单元共享的自由层和第二钉扎层，第一电流控制层，设置在第一单元中并限制感测的流量电流和第二电流控制层，其设置在第二单元中并限制感测电流的流量。

36. 发明申请

US20080106825A1 Current-perpendicular-to-plane magnetoresistance effect device with double current control layers 审中-公开
标题翻译：具有双电流控制层的电流 - 垂直于平面的磁阻效应器件
公开(公告)号：US20080106825A1
公开(公告)日：2008-05-08
申请号：US11965123
申请日：2007-12-27
申请人： Tomomi Funayama , Masayuki Takagishi , Katsuhiko Koui , Kohichi Tateyama
发明人： Tomomi Funayama , Masayuki Takagishi , Katsuhiko Koui , Kohichi Tateyama
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3906 , G11B5/398 , G11B5/3983 , G11B2005/3996 , H01F10/3259 , H01F10/3263 , H01L43/08
摘要： A magnetoresistance effect element of the dual spin valve type using a current-perpendicular-to-the-plane (CPP) system where a sensing current flows perpendicular to the stacked faces of a plurality of conductive layers, the magnetoresistance effect element comprises a first unit which includes a free layer and a first pinning layer, a second unit which includes the free layer shared with the first unit and a second pinning layer, a first current control layer which is provided in the first unit and limits the flow quantity of the sensing current, and a second current control layer which is provided in the second unit and limits the flow quantity of the sensing current.
摘要翻译：使用电流垂直于平面（CPP）系统的双自旋阀类型的磁阻效应元件，其中感测电流垂直于多个导电层的堆叠面流动，磁阻效应元件包括第一单元其包括自由层和第一钉扎层，第二单元，其包括与第一单元共享的自由层和第二钉扎层，第一电流控制层，设置在第一单元中并限制感测的流量电流和第二电流控制层，其设置在第二单元中并限制感测电流的流量。

37. 发明申请

US20070291421A1 CCP-CPP-GMR HEAD ASSEMBLY, MAGNETIC RECORDING/REPRODUCING APPARATUS, AND SPECIFICATION METHOD OF APPROPRIATE SENSE CURRENT DIRECTION OF CCP-CPP-GMR HEAD 失效
标题翻译： CCP-CPP-GMR头组件，磁记录/再现装置以及CCP-CPP-GMR头的适当感知电流方向的规格方法
公开(公告)号：US20070291421A1
公开(公告)日：2007-12-20
申请号：US11834855
申请日：2007-08-07
申请人： TOMOMI FUNAYAMA , KOHICHI TATEYAMA , MASAYUKI TAKAGISHI
发明人： TOMOMI FUNAYAMA , KOHICHI TATEYAMA , MASAYUKI TAKAGISHI
IPC分类号： G11B5/33
CPC分类号： G11B5/1272 , G11B5/33 , G11B5/39
摘要： Disclosed is a CCP-CPP-GMR head assembly which has: a CCP-CPP-GMR head that includes at least a current control layer having as a microstructure a plurality of truncated cone electric conductors with axes the same as a current direction and an insulator filling between the plurality of truncated cone electric conductors, and in which a surface on which a larger-area basal plane of the plurality of truncated cone electric conductors is greater in number is a first surface of the current control layer and a surface of an opposite side of the first surface is a second surface of the current control layer; and a sense current source providing the CCP-CPP-GMR head with a sense current that flows from the second surface to the first surface, a magnetic recording/reproducing apparatus having such a head, and a specification method of an appropriate sense current direction of the CCP-CPP-GMR head.
摘要翻译：公开了一种CCP-CPP-GMR头组件，其具有：CCP-CPP-GMR头，其至少包括具有作为微结构的电流控制层，多个具有与电流方向相同的轴的截头锥形电导体和绝缘体多个截锥形电导体之间的填充，其中多个截锥形电导体的较大面积的基面在其上较大的表面是电流控制层的第一表面和相反的表面第一表面的一侧是电流控制层的第二表面; 以及感测电流源，为CCP-CPP-GMR头提供从第二表面流向第一表面的感测电流，具有这种头的磁记录/再现装置，以及适当的感应电流方向的指定方法 CCP-CPP-GMR头。

38. 发明授权

US07277262B2 CPP magnetoresistive head including a pair of shields and a sense current preamplifier 失效
标题翻译： CPP磁阻头包括一对屏蔽和感测电流前置放大器
公开(公告)号：US07277262B2
公开(公告)日：2007-10-02
申请号：US10932338
申请日：2004-09-02
申请人： Masayuki Takagishi , Tomomi Funayama , Yoichiro Tanaka
发明人： Masayuki Takagishi , Tomomi Funayama , Yoichiro Tanaka
IPC分类号： G11B5/39
CPC分类号： G11B5/3912
摘要： A magnetic recording/reproducing apparatus has a magnetoresistive head having a magnetoresistive film through which a current is flowed in a direction substantially perpendicular to a film plane and a pair of magnetic shields disposed to sandwich the magnetoresistive film, and a preamplifier which supplies a sense current to the magnetoresistive head in constant-current driving.
摘要翻译：磁记录/再现装置具有磁阻头，该磁阻头具有磁阻膜，电流沿着基本上垂直于膜平面的方向流动，一对磁屏蔽设置成夹在磁阻膜上，前置放大器提供感测电流到恒流驱动中的磁阻头。

39. 发明授权

US07196877B2 Magnetoresistive element, magnetoresistive head and magnetic reproducing apparatus 有权
标题翻译：磁阻元件，磁阻磁头和磁再现装置
公开(公告)号：US07196877B2
公开(公告)日：2007-03-27
申请号：US10743130
申请日：2003-12-23
申请人： Masatoshi Yoshikawa , Masayuki Takagishi , Tomomi Funayama , Kohichi Tateyama , Hitoshi Iwasaki , Hideaki Fukuzawa
发明人： Masatoshi Yoshikawa , Masayuki Takagishi , Tomomi Funayama , Kohichi Tateyama , Hitoshi Iwasaki , Hideaki Fukuzawa
IPC分类号： G11B5/33
CPC分类号： H01L43/08 , B82Y10/00 , B82Y25/00 , G11B5/00 , G11B5/313 , G11B5/3143 , G11B5/3903 , G11B2005/3996 , H01F10/30 , H01F10/3254 , H01F10/3268
摘要： A magnetoresistive element includes a magnetoresistive film having a magnetization pinned layer, a magnetization free layer, and a nonmagnetic intermediate layer. A magnetization direction of the magnetization pinned layer is substantially fixed in an external magnetic field, a magnetization direction of the magnetization free layer is configured to change in the external magnetic field, and the nonmagnetic intermediate layer formed between the magnetization pinned layer and the magnetization free layer and has a stacked structure of a first non-metallic intermediate layer/a metal intermediate layer/a second non-metallic intermediate layer. The magnetoresistive element also includes a pair of electrodes coupled to the magnetoresistive film and is configured to provide a current in a direction substantially perpendicular to a surface of the magnetoresistive film.
摘要翻译：磁阻元件包括具有磁化钉扎层，磁化自由层和非磁性中间层的磁阻膜。磁化被钉扎层的磁化方向基本上固定在外部磁场中，磁化自由层的磁化方向被配置为在外部磁场中改变，并且形成在磁化钉扎层和无磁化之间的非磁性中间层并且具有第一非金属中间层/金属中间层/第二非金属中间层的堆叠结构。磁阻元件还包括耦合到磁阻膜的一对电极，并且被配置为在基本垂直于磁阻膜的表面的方向上提供电流。

40. 发明申请

US20050063104A1 Magnetic recording/reproducing apparatus 失效
标题翻译：磁记录/再现装置
公开(公告)号：US20050063104A1
公开(公告)日：2005-03-24
申请号：US10932338
申请日：2004-09-02
申请人： Masayuki Takagishi , Tomomi Funayama , Yoichiro Tanaka
发明人： Masayuki Takagishi , Tomomi Funayama , Yoichiro Tanaka
IPC分类号： G11B5/02 , G11B5/127 , G11B5/33 , G11B5/39 , H01F10/32 , H01L43/08
CPC分类号： G11B5/3912
摘要： A magnetic recording/reproducing apparatus has a magnetoresistive head having a magnetoresistive film through which a current is flowed in a direction substantially perpendicular to a film plane and a pair of magnetic shields disposed to sandwich the magnetoresistive film, and a preamplifier which supplies a sense current to the magnetoresistive head in constant-current driving.
摘要翻译：磁记录/再现装置具有磁阻头，该磁阻头具有磁阻膜，电流沿着基本上垂直于膜平面的方向流动，一对磁屏蔽设置成夹在磁阻膜上，前置放大器提供感测电流到恒流驱动中的磁阻头。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式