公开(公告)号：US07663845B2

公开(公告)日：2010-02-16

申请号：US11616503

申请日：2006-12-27

申请人： Kei Hirata ,  Koji Shimazawa ,  Atsushi Yamaguchi ,  Kiyoshi Noguchi

发明人： Kei Hirata ,  Koji Shimazawa ,  Atsushi Yamaguchi ,  Kiyoshi Noguchi

IPC分类号： G11B5/11 ,  G11B5/39

CPC分类号： G11B5/3912

摘要： A current-perpendicular-to-plane magneto-resistive element includes a magneto-resistive film and a pair of upper and lower magnetic shielding films holding the magneto-resistive film therebetween for current feeding. The lower magnetic shielding film has an at least two-layer structure including a crystalline material layer and an amorphous material layer disposed below the crystalline material layer.

摘要翻译： 电流 - 垂直于平面的磁阻元件包括磁阻膜和一对上下磁屏蔽膜，其在其间保持用于电流馈送的磁阻膜。 下磁屏蔽膜具有至少两层结构，包括结晶材料层和设置在结晶材料层下方的无定形材料层。

公开(公告)号：US07372667B2

公开(公告)日：2008-05-13

申请号：US11139697

申请日：2005-05-31

申请人： Taro Oike ,  Hiraku Hirabayashi ,  Shin Narushima ,  Takamitsu Sakamoto ,  Kiyoshi Noguchi

发明人： Taro Oike ,  Hiraku Hirabayashi ,  Shin Narushima ,  Takamitsu Sakamoto ,  Kiyoshi Noguchi

IPC分类号： G11B5/31

CPC分类号： G11B5/187 ,  G11B5/3116 ,  G11B5/3163

摘要： A thin-film magnetic head comprising an inductive element including at least: a lower magnetic pole; a write gap layer; and an upper magnetic pole opposed to the lower magnetic pole through the write gap layer, a width WP2 in a track-width direction at a facing-to-magnetic-medium top end of the upper magnetic pole being larger than a width WP1 in the track-width direction at a facing-to-magnetic-medium top end of the lower magnetic pole, and a distance FPDP2 between the top end of the upper magnetic pole and a flare point of the upper magnetic pole being smaller than a distance FPDP1 between the top end of the lower magnetic pole and a flare point of the lower magnetic pole, is provided.

摘要翻译： 一种薄膜磁头，包括至少包括下磁极的感应元件; 写间隙层; 以及通过写入间隙层与下部磁极相对的上部磁极，在上部磁极的面对磁性介质顶端的轨道宽度方向上的宽度W P2 大于在下磁极的面对磁介质顶端处的轨道宽度方向上的宽度W P1 P1和之间的距离FPD P2 被提供。

公开(公告)号：US20070279803A1

公开(公告)日：2007-12-06

申请号：US11756134

申请日：2007-05-31

申请人： Kei Hirata ,  Tetsuya Roppongi ,  Kiyoshi Noguchi

发明人： Kei Hirata ,  Tetsuya Roppongi ,  Kiyoshi Noguchi

IPC分类号： G11B5/147

CPC分类号： G11B5/1278 ,  B82Y10/00 ,  G11B5/11 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/743

摘要： The invention provides a thin-film magnetic head wherein the combined release angle Φ for a dominant recording magnetic field generated from a magnetic pole layer toward a patterned media for the purpose of recording magnetic information is set to within an angle range of 35° to 65° with respect to a patterned media surface. It is thus possible to invert, with efficiency and reliability, the directions of magnetization of isolate bits lined up on the patterned media for high-density recording.

摘要翻译： 本发明提供了一种薄膜磁头，其中用于记录磁信息的从磁极层向图案化介质产生的主要记录磁场的组合释放角Phi设定在35°至65°的角度范围内 °相对于图案化介质表面。 因此，可以以效率和可靠性反转排列在图案化介质上的高密度记录的隔离位的磁化方向。

公开(公告)号：US07262941B2

公开(公告)日：2007-08-28

申请号：US10856180

申请日：2004-05-28

申请人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

发明人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

IPC分类号： G11B5/39

CPC分类号： C22C38/10 ,  B32B15/01 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  C22C38/12 ,  G01R33/093 ,  G11B5/3163 ,  G11B5/3903 ,  H01F10/3259 ,  H01F10/3272 ,  H01F41/302 ,  H01L43/08 ,  H01L43/12 ,  Y10T29/49034 ,  Y10T29/49044 ,  Y10T29/49046

摘要： An NiCr seed layer based bottom spin valve sensor element having a synthetic antiferromagnet pinned (SyAP) layer and a capping layer comprising either a single specularly reflecting nano-oxide layer (NOL) or a bi-layer comprising a non-metallic layer and a specularly reflecting nano-oxide layer. As a result of their structure and the method of their fabrication, these elements have higher GMR ratios and lower resistances than elements of the prior art.

摘要翻译： 一种具有合成反铁磁性钉扎（SyAP）层的NiCr种子层底部自旋阀传感器元件和包括单个镜面反射纳米氧化物层（NOL）或包含非金属层的双层和镜面反射纳米氧化物层 反射纳米氧化层。 由于它们的结构及其制造方法的结果，这些元件具有比现有技术的元件更高的GMR比和更低的电阻。

公开(公告)号：US20060203379A1

公开(公告)日：2006-09-14

申请号：US11337659

申请日：2006-01-24

申请人： Kei Hirata ,  Takahiko Machita ,  Kiyoshi Noguchi

发明人： Kei Hirata ,  Takahiko Machita ,  Kiyoshi Noguchi

IPC分类号： G11B5/127

CPC分类号： G11B5/1278

摘要： A perpendicular magnetic recording element includes a recording magnetic pole film and a write shield film. The recording magnetic pole film has a yoke portion and a main magnetic pole for perpendicular recording. The main magnetic pole projects from a front end of the yoke portion to have an end on a medium-facing surface. The write shield film faces the recording magnetic pole film and has a height equal to or smaller than that of the recording magnetic pole film, as measured rearward from the medium-facing surface.

摘要翻译： 垂直磁记录元件包括记录磁极膜和写保护膜。 记录磁极膜具有用于垂直记录的磁轭部分和主磁极。 主磁极从磁轭部的前端突出，以在中间面的表面上具有一端。 写入屏蔽膜面向记录磁极膜，并且具有与记录磁极膜相同或更小的高度，从中间面向后测量。

公开(公告)号：US06909583B2

公开(公告)日：2005-06-21

申请号：US10437090

申请日：2003-05-13

申请人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

发明人： Min Li ,  Simon H. Liao ,  Masashi Sano ,  Kiyoshi Noguchi ,  Kochan Ju ,  Cheng T. Horng

IPC分类号： G01R33/09 ,  G11B5/39 ,  G11B5/127

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903 ,  Y10T29/49034 ,  Y10T29/49044 ,  Y10T29/49046

摘要： A method for forming a bottom spin valve sensor having a synthetic antiferromagnetic pinned (SyAP) layer, antiferromagnetically coupled to a pinning layer, in which one of the layers of the SyAP is formed as a three layer lamination that contains a specularly reflecting oxide layer of FeTaO. The sensor formed according to this method has an extremely high GMR ratio and exhibits good pinning strength.

摘要翻译： 一种用于形成底部自旋阀传感器的方法，该底部自旋阀传感器具有反结合磁耦合到钉扎层的合成反铁磁钉扎（SyAP）层，其中SyAP的一个层形成为三层层压，其包含镜面反射氧化物层 FeTaO。 根据该方法形成的传感器具有非常高的GMR比，并且具有良好的钉扎强度。

公开(公告)号：US4599280A

公开(公告)日：1986-07-08

申请号：US603668

申请日：1984-04-25

申请人： Toshiaki Izumi ,  Kiyoshi Noguchi ,  Misao Kohmoto

发明人： Toshiaki Izumi ,  Kiyoshi Noguchi ,  Misao Kohmoto

IPC分类号： G11B5/85 ,  G11B5/64

CPC分类号： G11B5/85 ,  Y10S428/90

摘要： In a magnetic recording medium comprising a length of a non-magnetic plastic substrate and a magnetic thin layer of Co or Co-Ni or Co-Ni-Cr formed thereon, when the coercive force of the medium is measured by changing the measuring direction in a plane defined by a longitudinal direction of the substrate and a direction normal to the major surface of the substrate, the following relationship is met:(Hc.sub.max -Hc.sub.min)/Hc(0).ltoreq.0.9where Hc.sub.max is the maximum coercive force, Hc.sub.min is the minimum coercive force, and Hc(0) is a coercive force in the longitudinal direction of the substrate.

摘要翻译： 在包含一定长度的非磁性塑料基板和其上形成有Co或Co-Ni或Co-Ni-Cr的磁性薄层的磁记录介质中，当通过改变介质的测量方向来测量介质的矫顽力时 由基板的纵向和垂直于基板的主表面的方向限定的平面，满足以下关系：（Hcmax-Hcmin）/ Hc（0）

公开(公告)号：US4550062A

公开(公告)日：1985-10-29

申请号：US561521

申请日：1983-12-15

申请人： Suguru Takayama ,  Kiyoshi Noguchi ,  Kouji Kobayashi

发明人： Suguru Takayama ,  Kiyoshi Noguchi ,  Kouji Kobayashi

IPC分类号： G11B5/706 ,  G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/716 ,  G11B5/85

CPC分类号： G11B5/716 ,  G11B5/66 ,  Y10S428/928 ,  Y10T428/12465 ,  Y10T428/12611 ,  Y10T428/12861 ,  Y10T428/12931

摘要： A magnetic recording medium which comprises a first layer formed on a substrate and comprising Co; Co and Ni; Co and O; or Co, Ni and O, and a second magnetic layer formed on the first magnetic layer and comprising Co and Cr at a weight ratio of Co/Cr being from 2.5 to 8.

摘要翻译： 一种磁记录介质，包括形成在基底上并包含Co的第一层; Co和Ni; Co和O; 或Co，Ni和O，以及形成在第一磁性层上并以Co / Cr的重量比为2.5至8的Co和Cr的第二磁性层。

公开(公告)号：US07881021B2

公开(公告)日：2011-02-01

申请号：US12022538

申请日：2008-01-30

申请人： Tsutomu Chou ,  Yoshihiro Tsuchiya ,  Daisuke Miyauchi ,  Takahiko Machita ,  Shinji Hara ,  Tomohito Mizuno ,  Hironobu Matsuzawa ,  Toshiyuki Ayukawa ,  Koji Shimazawa ,  Kiyoshi Noguchi

发明人： Tsutomu Chou ,  Yoshihiro Tsuchiya ,  Daisuke Miyauchi ,  Takahiko Machita ,  Shinji Hara ,  Tomohito Mizuno ,  Hironobu Matsuzawa ,  Toshiyuki Ayukawa ,  Koji Shimazawa ,  Kiyoshi Noguchi

IPC分类号： G11B5/39

CPC分类号： G11B5/398 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3916 ,  G11B5/3932 ,  G11B5/3967

摘要： A magnetoresistive device with CPP structure, comprising a nonmagnetic intermediate layer, and a first ferromagnetic layer and a second ferromagnetic layer stacked and formed with said nonmagnetic intermediate layer interposed between them, wherein each of said first and second ferromagnetic layers comprises a sensor area joining to the nonmagnetic intermediate layer and a magnetization direction control area that extends further rearward from the position of the rear end of said nonmagnetic intermediate layer; a magnetization direction control multilayer arrangement is interposed at an area where the magnetization direction control area for said first ferromagnetic layer is opposite to the magnetization direction control area for said second ferromagnetic layer to produce magnetizations of the said first and second ferromagnetic layers which are antiparallel with each other; and said sensor area is provided at both width direction ends with biasing layers working such that the mutually antiparallel magnetizations of said first and second ferromagnetic layers intersect in substantially orthogonal directions.

摘要翻译： 一种具有CPP结构的磁阻器件，包括非磁性中间层，以及第一铁磁层和第二铁磁层，所述第一铁磁层和第二铁磁层层叠并形成有位于它们之间的所述非磁性中间层，其中所述第一和第二铁磁层中的每一个包括连接到 所述非磁性中间层和从所述非磁性中间层的后端的位置向后延伸的磁化方向控制区域; 磁化方向控制多层布置被插入在所述第一铁磁层的磁化方向控制区域与所述第二铁磁层的磁化方向控制区域相反的区域处，以产生与所述第一和第二铁磁层反平行的所述第一和第二铁磁层的磁化 彼此; 并且所述传感器区域设置在两个宽度方向端，偏压层工作，使得所述第一和第二铁磁层的相互反平行磁化在大致正交的方向相交。

公开(公告)号：US07848055B2

公开(公告)日：2010-12-07

申请号：US11763057

申请日：2007-06-14

申请人： Atsushi Yamaguchi ,  Kiyoshi Noguchi ,  Shingo Miyata ,  Masashi Sano

发明人： Atsushi Yamaguchi ,  Kiyoshi Noguchi ,  Shingo Miyata ,  Masashi Sano

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： The present invention relates to a perpendicular recording magnetic head. A main magnetic pole film of a perpendicular recording element is a plated film formed on an electrode film and having a small width portion and a large width portion. The small width portion is a portion for emitting a perpendicular magnetic field from a front end thereof, while the large width portion is portion being continuous with a rear end of the small width portion and having an increased width. The electrode film is different in film thickness between beneath a portion of the plated film forming at least the front end of the small width portion and beneath a portion of the plated film forming the large width portion.

摘要翻译： 本发明涉及一种垂直记录磁头。 垂直记录元件的主磁极膜是形成在电极膜上并具有小宽度部分和宽宽度部分的电镀膜。 小宽度部分是用于从其前端发射垂直磁场的部分，而大宽度部分是与小宽度部分的后端连续并且具有增加的宽度的部分。 所述电极膜的​​厚度不同，所述电镀膜的至少形成在所述小宽度部的前端部的部分之下，并且形成所述大宽度部的所述镀膜的部分之下。