公开(公告)号：US08462467B2

公开(公告)日：2013-06-11

申请号：US12900879

申请日：2010-10-08

申请人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

发明人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

IPC分类号： G11B5/39

CPC分类号： G11B5/3912 ,  G01R33/098 ,  G11B5/3932 ,  H01F10/3254 ,  H01F10/3272 ,  H01L43/08

摘要： A thin film magnetic head includes: a magneto resistance effect film of which electrical resistance varies corresponding to an external magnetic field; a pair of shields provided on both sides in a manner of sandwiching the MR film in a direction that is orthogonal to a film surface of the MR film; an anisotropy providing layer that provides exchange anisotropy to a first shield of the pair of shields in order to magnetize the first shield in a desired direction, and that is disposed on the opposite side from the MR film with respect to the first shield; and side shields that are disposed on both sides of the MR film in a track width direction and that include soft magnetic layers magnetically connected with the first shield.

摘要翻译： 薄膜磁头包括：电阻效应膜，其电阻根据外部磁场而变化; 一对屏蔽，以与MR膜的膜表面正交的方向夹持MR膜的方式设置在两侧; 各向异性提供层，其向所述一对屏蔽件的第一屏蔽提供交换各向异性，以便在所需方向上磁化所述第一屏蔽，并且相对于所述第一屏蔽设置在与所述MR膜相反的一侧上; 以及侧面屏蔽，其设置在MR膜的轨道宽度方向的两侧，并且包括与第一屏蔽件磁性连接的软磁性层。

公开(公告)号：US20120087045A1

公开(公告)日：2012-04-12

申请号：US12900845

申请日：2010-10-08

申请人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

发明人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

IPC分类号： G11B5/33 ,  G11B5/56 ,  G11B5/48

CPC分类号： G11B5/3912 ,  B82Y25/00 ,  G01R33/093 ,  H01F10/325 ,  H01F10/3254 ,  H01L43/08

摘要： A thin film magnetic head includes; an MR film that includes a pinned layer of which a magnetization direction is pinned, a free layer of which a magnetization direction varies, and a spacer that is disposed therebetween; a pair of shields that are disposed on both sides sandwiching the MR film in a direction orthogonal to a film surface of the MR film; and an anisotropy providing layer that provides anisotropy to a first shield so that the first shield is magnetized in a desired direction, and that is disposed on an opposite side from the MR film with respect to the first shield. The MR film includes a magnetic coupling layer that is disposed between the first shield and the free layer and that magnetically couples the first shield with the free layer.

摘要翻译： 薄膜磁头包括： 包括磁化方向被钉扎的钉扎层，磁化方向变化的自由层和设置在其间的间隔件的MR膜; 一对屏蔽，其设置在与MR膜的膜表面正交的方向上夹着MR膜的两侧; 以及各向异性提供层，其向第一屏蔽提供各向异性，使得第一屏蔽沿期望的方向被磁化，并且被设置在与MR膜相对于第一屏蔽的相对侧上。 MR膜包括设置在第一屏蔽和自由层之间并且将第一屏蔽与自由层磁耦合的磁耦合层。

公开(公告)号：US20090168255A1

公开(公告)日：2009-07-02

申请号：US11966025

申请日：2007-12-28

申请人： Takumi Yanagisawa ,  Yosuke Antoku ,  Yoshikazu Sawada

发明人： Takumi Yanagisawa ,  Yosuke Antoku ,  Yoshikazu Sawada

IPC分类号： G11B5/33

CPC分类号： G11B5/40 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3906 ,  G11B2005/0016 ,  G11B2005/3996

摘要： The invention provides a method for fixing up the deterioration of a magneto-resistive effect device. A hard disk system is provided in it with a head heating means for heating a thin-film magnetic head, and by that head heating means, a defective site of the magneto-resistive effect device, which occurs as the hard disk system is in operation and is confined in a quasi-stable state, is fixed up in such a way as to return back to its own normal stable state. Thus, the deteriorated site of the magneto-resistive effect device (reproducing device) in the thin-film magnetic head, which is caused by the so-called thermal asperity as the hard disk system is in operation, is fixed up while it remains built in the hard disk system, i.e., without dismantling the hard disk system.

摘要翻译： 本发明提供了一种用于固定磁阻效应装置的劣化的方法。 在其中设置有用于加热薄膜磁头的磁头加热装置和由该磁头加热装置在磁盘系统运行时发生的磁阻效应装置的缺陷部位的硬盘系统 并且被限制在准稳定状态，被固定为使其返回到其自己的正常稳定状态。 因此，由硬盘系统所谓的热不均匀性引起的薄膜磁头中的磁阻效应器件（再现装置）的劣化位置在其保持构建的同时被固定 在硬盘系统中，即不拆卸硬盘系统。

公开(公告)号：US20080251099A1

公开(公告)日：2008-10-16

申请号：US11735624

申请日：2007-04-16

申请人： Yoshikazu SAWADA ,  Norio Takahashi ,  Masaru Hirose ,  Mitsuo Otsuki ,  Shoji Toyoda ,  Anthony Wai Yuen Lai

发明人： Yoshikazu SAWADA ,  Norio Takahashi ,  Masaru Hirose ,  Mitsuo Otsuki ,  Shoji Toyoda ,  Anthony Wai Yuen Lai

IPC分类号： B08B7/00 ,  G11B5/33

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3906 ,  G11B5/455 ,  G11B2005/3996

摘要： Provided is a smear-removing method that can remove smear of a manufactured thin-film magnetic head. The method is performed to a thin-film magnetic head including an MR effect element for reading data having two electrode layers sandwiching an MR effect multilayer as a magneto-sensitive portion therebetween. The method comprises the step of applying a stress voltage less than a breaking voltage of the MR effect element between the two electrode layers to burn off smear. In the method, it is preferable that the stress voltage is applied while an electric resistance or an output voltage of the MR effect element is measured, and the stress voltage is increased until the value of the electric resistance or the output voltage reaches an upper limit specified value specified from a value of an electric resistance or an output voltage in a normal case where smear is not present.

摘要翻译： 提供了可以去除制造的薄膜磁头的污迹的涂抹去除方法。 该方法被执行到包括用于读取具有夹住MR效应多层的两个电极层的数据的MR效应元件的薄膜磁头作为它们之间的磁敏部分。 该方法包括在两个电极层之间施加小于MR效应元件的断开电压的应力电压以烧毁涂抹的步骤。 在该方法中，优选在测量MR效应元件的电阻或输出电压的同时施加应力电压，并且应力电压增加直到电阻值或输出电压值达到上限 在不存在涂片的正常情况下由电阻值或输出电压值指定的指定值。

公开(公告)号：US08402635B2

公开(公告)日：2013-03-26

申请号：US13052674

申请日：2011-03-21

申请人： Naomichi Degawa ,  Takumi Yanagisawa ,  Satoshi Miura ,  Yoshikazu Sawada ,  Takahiko Machita ,  Kenzo Makino ,  Takekazu Yamane ,  Shohei Kawasaki

发明人： Naomichi Degawa ,  Takumi Yanagisawa ,  Satoshi Miura ,  Yoshikazu Sawada ,  Takahiko Machita ,  Kenzo Makino ,  Takekazu Yamane ,  Shohei Kawasaki

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3912 ,  G01R33/093 ,  G11B5/3163 ,  G11B5/398 ,  H01L43/12 ,  Y10T29/49021 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method of manufacturing a magnetic head, including a magneto resistance effect (MR) element that reads a magnetic recording medium, is disclosed. A multilayer film is formed on a shield layer. Unnecessary portions of the multilayer film are removed from both sides of the MR element in a first direction orthogonal to a lamination direction of the multilayer film and parallel to the MR element surface facing the magnetic recording medium. An insulating layer is formed on a surface exposed by removal of the unnecessary portions. An integrated soft magnetic layer covering both sides of the MR element in the first direction and an upper side of the MR element is formed, thereby configuring a second shield layer. An anisotropy application layer is formed on the second shield layer, thereby providing exchange anisotropy to the soft magnetic layer, and magnetizing the soft magnetic layer in a predetermined direction.

摘要翻译： 公开了一种制造磁头的方法，该磁头包括读取磁记录介质的磁阻效应（MR）元件。 在屏蔽层上形成多层膜。 在与多层膜的层叠方向正交的第一方向上并且平行于面向磁记录介质的MR元件表面，从MR元件的两侧除去多余膜的不必要部分。 在通过去除不需要的部分暴露的表面上形成绝缘层。 形成了在MR元件的第一方向的两侧和MR元件的上侧覆盖的集成软磁性层，从而构成第二屏蔽层。 在第二屏蔽层上形成各向异性涂布层，从而为软磁层提供交换各向异性，并在预定方向上使软磁层磁化。

公开(公告)号：US20120250189A1

公开(公告)日：2012-10-04

申请号：US13074272

申请日：2011-03-29

申请人： Naomichi DEGAWA ,  Takumi Yanagisawa ,  Satoshi Miura ,  Yoshikazu Sawada ,  Takahiko Machita ,  Kenzo Makino ,  Takekazu Yamane ,  Shohei Kawasaki

发明人： Naomichi DEGAWA ,  Takumi Yanagisawa ,  Satoshi Miura ,  Yoshikazu Sawada ,  Takahiko Machita ,  Kenzo Makino ,  Takekazu Yamane ,  Shohei Kawasaki

IPC分类号： G11B5/39 ,  G11B5/60

CPC分类号： G11B5/3912 ,  G01R33/093 ,  G11B5/3909 ,  G11B2005/3996

摘要： A magnetic head that reads information of a magnetic recording medium is provided. The magnetic head according to one embodiment includes: an MR element, formed with multilayer films, of which an electrical resistance changes according to an external magnetic field; a first shield layer that is disposed on a lower side in an lamination direction of the MR element; a second shield layer that is disposed on an upper side in the lamination direction of the MR element, and that applies voltage to the MR element together with the first shield layer; and side shield layers that are disposed on both sides of the MR element in a truck width direction. The side shield layers include soft magnetic layers and hard magnetic layers magnetized in a predetermined direction.

摘要翻译： 提供读取磁记录介质的信息的磁头。 根据一个实施例的磁头包括：由多层膜形成的MR元件，其电阻根据外部磁场而改变; 第一屏蔽层，其设置在所述MR元件的层叠方向的下侧; 第二屏蔽层，其设置在所述MR元件的层叠方向的上侧，并且与所述第一屏蔽层一起向所述MR元件施加电压; 以及侧向屏蔽层，其设置在卡车宽度方向上的MR元件的两侧。 侧面屏蔽层包括在预定方向上被磁化的软磁性层和硬磁性层。

公开(公告)号：US20120087046A1

公开(公告)日：2012-04-12

申请号：US12900879

申请日：2010-10-08

申请人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

发明人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

IPC分类号： G11B5/127 ,  G11B21/24 ,  G11B5/48

CPC分类号： G11B5/3912 ,  G01R33/098 ,  G11B5/3932 ,  H01F10/3254 ,  H01F10/3272 ,  H01L43/08

摘要： A thin film magnetic head includes: a magneto resistance effect film of which electrical resistance varies corresponding to an external magnetic field; a pair of shields provided on both sides in a manner of sandwiching the MR film in a direction that is orthogonal to a film surface of the MR film; an anisotropy providing layer that provides exchange anisotropy to a first shield of the pair of shields in order to magnetize the first shield in a desired direction, and that is disposed on the opposite side from the MR film with respect to the first shield; and side shields that are disposed on both sides of the MR film in a track width direction and that include soft magnetic layers magnetically connected with the first shield.

摘要翻译： 薄膜磁头包括：电阻效应膜，其电阻根据外部磁场而变化; 一对屏蔽，以与MR膜的膜表面正交的方向夹持MR膜的方式设置在两侧; 各向异性提供层，其向所述一对屏蔽件的第一屏蔽提供交换各向异性，以便在所需方向上磁化所述第一屏蔽，并且相对于所述第一屏蔽设置在与所述MR膜相反的一侧上; 以及侧面屏蔽，其设置在MR膜的轨道宽度方向的两侧，并且包括与第一屏蔽件磁性连接的软磁性层。

公开(公告)号：US07359149B2

公开(公告)日：2008-04-15

申请号：US11079735

申请日：2005-03-15

申请人： Hiroshi Kiyono ,  Yosuke Antoku ,  Tsuyoshi Umehara ,  Yoshikazu Sawada

发明人： Hiroshi Kiyono ,  Yosuke Antoku ,  Tsuyoshi Umehara ,  Yoshikazu Sawada

IPC分类号： G11B5/39 ,  G11B5/127

CPC分类号： G11B5/3967

摘要： A composite type thin-film magnetic head is provided, which comprises: a write head element; a pair of terminal pads for the write head element; a pair of lead conductors for the write head element, electrically connecting the write head element to the pair of terminal pads for the write head element; a read head element; a pair of terminal pads for the read head element; and a pair of lead conductors for the read head element, electrically connecting the read head element to the pair of terminal pads for the read head element. The pair of lead conductors for the write head element and the pair of lead conductors for the read head element are formed into patterns that have no overlapped portions with each other through only an insulating layer.

摘要翻译： 提供一种复合型薄膜磁头，其包括：写头元件; 用于写入头元件的一对端子焊盘; 用于写头元件的一对引线导体，用于将写入头元件电连接到用于写入头元件的一对端子焊盘; 读头元件; 用于读头元件的一对端子焊盘; 以及用于读头元件的一对引线导体，用于将读头元件电连接到用于读头元件的一对端子焊盘。 用于读头元件的写头元件和一对引线导体的一对引线导体被形成为仅通过绝缘层彼此不重叠的图案。

公开(公告)号：US08552328B2

公开(公告)日：2013-10-08

申请号：US11966025

申请日：2007-12-28

申请人： Takumi Yanagisawa ,  Yosuke Antoku ,  Yoshikazu Sawada

发明人： Takumi Yanagisawa ,  Yosuke Antoku ,  Yoshikazu Sawada

IPC分类号： G11B5/37

CPC分类号： G11B5/40 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3906 ,  G11B2005/0016 ,  G11B2005/3996

摘要： The invention provides a method for fixing up the deterioration of a magneto-resistive effect device. A hard disk system is provided in it with a head heating means for heating a thin-film magnetic head, and by that head heating means, a defective site of the magneto-resistive effect device, which occurs as the hard disk system is in operation and is confined in a quasi-stable state, is fixed up in such a way as to return back to its own normal stable state. Thus, the deteriorated site of the magneto-resistive effect device (reproducing device) in the thin-film magnetic head, which is caused by the so-called thermal asperity as the hard disk system is in operation, is fixed up while it remains built in the hard disk system, i.e., without dismantling the hard disk system.

摘要翻译： 本发明提供了一种用于固定磁阻效应装置的劣化的方法。 在其中设置有用于加热薄膜磁头的磁头加热装置和由该磁头加热装置在磁盘系统运行时发生的磁阻效应装置的缺陷部位的硬盘系统 并且被限制在准稳定状态，被固定为使其返回到其自己的正常稳定状态。 因此，由硬盘系统所谓的热不均匀性引起的薄膜磁头中的磁阻效应器件（再现装置）的劣化位置在其保持构建的同时被固定 在硬盘系统中，即不拆卸硬盘系统。

公开(公告)号：US07764468B2

公开(公告)日：2010-07-27

申请号：US11735624

申请日：2007-04-16

申请人： Yoshikazu Sawada ,  Norio Takahashi ,  Masaru Hirose ,  Mitsuo Otsuki ,  Shoji Toyoda ,  Anthony Wai Yuen Lai

发明人： Yoshikazu Sawada ,  Norio Takahashi ,  Masaru Hirose ,  Mitsuo Otsuki ,  Shoji Toyoda ,  Anthony Wai Yuen Lai

IPC分类号： G11B5/33 ,  G11B5/03

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3906 ,  G11B5/455 ,  G11B2005/3996

摘要： Provided is a smear-removing method that can remove smear of a manufactured thin-film magnetic head. The method is performed to a thin-film magnetic head including an MR effect element for reading data having two electrode layers sandwiching an MR effect multilayer as a magneto-sensitive portion therebetween. The method comprises the step of applying a stress voltage less than a breaking voltage of the MR effect element between the two electrode layers to burn off smear. In the method, it is preferable that the stress voltage is applied while an electric resistance or an output voltage of the MR effect element is measured, and the stress voltage is increased until the value of the electric resistance or the output voltage reaches an upper limit specified value specified from a value of an electric resistance or an output voltage in a normal case where smear is not present.

摘要翻译： 提供了可以去除制造的薄膜磁头的污迹的涂抹去除方法。 该方法被执行到包括用于读取具有夹住MR效应多层的两个电极层的数据的MR效应元件的薄膜磁头作为它们之间的磁敏部分。 该方法包括在两个电极层之间施加小于MR效应元件的断开电压的应力电压以烧毁涂抹的步骤。 在该方法中，优选在测量MR效应元件的电阻或输出电压的同时施加应力电压，并且应力电压增加直到电阻值或输出电压值达到上限 在不存在涂片的正常情况下由电阻值或输出电压值指定的指定值。