公开(公告)号：US08117737B2

公开(公告)日：2012-02-21

申请号：US12591745

申请日：2009-11-30

Applicant: Hisayoshi Watanabe ,  Masachika Hashino ,  Michitoshi Tsuchiya ,  Koichi Otani ,  Tatsuhiro Nojima ,  Tsutomu Nishinaga ,  Hideyuki Ukita

Inventor： Hisayoshi Watanabe ,  Masachika Hashino ,  Michitoshi Tsuchiya ,  Koichi Otani ,  Tatsuhiro Nojima ,  Tsutomu Nishinaga ,  Hideyuki Ukita

IPC: G11B5/127 ,  H04R31/00

CPC classification number: G11B5/115 ,  G11B5/1278 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

Abstract: A manufacturing method for a magnetic head includes the steps of: forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps; forming first and second side shields; forming an upper gap; and forming an upper shield. In the step of forming the structure, an initial lower gap layer is formed on the lower shield, the initial lower gap layer including a pre-lower-gap portion, and two to-be-removed portions that are located on opposite sides of the pre-lower-gap portion. Then, a protrusion including the main magnetic pole and the first and second side gaps is formed on the pre-lower-gap portion. With the top surface of the protrusion covered with a mask, the initial lower gap layer is etched in part to thereby form the lower gap.

Abstract translation: 一种用于磁头的制造方法包括以下步骤：在下屏蔽上形成结构，该结构包括下间隙，主磁极以及第一和第二侧间隙; 形成第一和第二侧面罩; 形成上部间隙; 并形成上护罩。 在形成该结构的步骤中，在下屏蔽件上形成初始下间隙层，初始下间隙层包括预先下间隙部分，以及两个待除去部分，其位于 前下间隙部分。 然后，在前下间隙部分上形成包括主磁极和第一和第二侧间隙的突起。 在凸起的顶表面被掩模覆盖的情况下，初始的下间隙层被部分蚀刻，从而形成下间隙。

公开(公告)号：US20110090595A1

公开(公告)日：2011-04-21

申请号：US12588440

申请日：2009-10-15

Applicant: Kei Hirata ,  Hideyuki Ukita ,  Shin Narushima ,  Isamu Toba ,  Hiromichi Umehara ,  Hisayoshi Watanabe ,  Hideyuki Yatsu

Inventor： Kei Hirata ,  Hideyuki Ukita ,  Shin Narushima ,  Isamu Toba ,  Hiromichi Umehara ,  Hisayoshi Watanabe ,  Hideyuki Yatsu

IPC: G11B5/127

CPC classification number: G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

Abstract: A main magnetic pole includes a first part extending from a medium facing surface to a point at a predetermined distance from the medium facing surface, and a second part other than the first part. An accommodation part for accommodating the main magnetic pole includes: a first layer having a groove; a second layer lying between the first layer and the main magnetic pole in the first layer's groove; and a third layer interposed in part between the second layer and the main magnetic pole in the first layer's groove. The second layer is formed of a metal material different from a material used to form the first layer. The third layer is formed of an inorganic insulating material. The second and third layers lie between the first layer and the first part. The second layer lies between the bottom of the first layer's groove and the second part, but the third layer does not. The distance between the bottom of the first layer's groove and the second part is smaller than that between the bottom and the first part.

公开(公告)号：US08373947B1

公开(公告)日：2013-02-12

申请号：US13248590

申请日：2011-09-29

Applicant: Tatsuhiro Nojima ,  Masashi Sano ,  Yosuke Antoku ,  Mutsumi Fujita ,  Isamu Toba ,  Norio Takahashi ,  Hideyuki Ukita

Inventor： Tatsuhiro Nojima ,  Masashi Sano ,  Yosuke Antoku ,  Mutsumi Fujita ,  Isamu Toba ,  Norio Takahashi ,  Hideyuki Ukita

IPC: G11B5/39

CPC classification number: G11B5/3106 ,  G11B5/6011

Abstract: A magnetic head slider includes a magnetic recording part and/or a reproducing part. The magnetic head slider includes a resistance film having temperature dependence of electrical resistance, the resistance film being positioned in the vicinity of an air bearing surface or on the air bearing surface, separately from the magnetic recording part and the reproducing part. The magnetic head slider further includes a first protective film with a smaller milling rate than the resistance film, the first protective film contacting a lower surface of the resistance film in a lamination direction of the magnetic head slider and on the air bearing surface, and/or a second protective film with a smaller milling rate than the resistance film, the second protective film contacting an upper surface of the resistance film in the lamination direction of the magnetic head slider and on the air bearing surface.

Abstract translation: 磁头滑块包括磁记录部和/或再现部。 磁头滑动器包括具有电阻温度依赖性的电阻膜，电阻膜位于空气支承表面附近或空气支承表面附近，与磁记录部分和再现部分分开。 磁头滑块还包括具有比电阻膜更小的研磨速度的第一保护膜，第一保护膜在磁头滑块的层叠方向和空气轴承表面上接触电阻膜的下表面，和/ 或具有比电阻膜更小的研磨速度的第二保护膜，第二保护膜在磁头滑块的层叠方向和空气轴承表面上接触电阻膜的上表面。

公开(公告)号：US08164853B2

公开(公告)日：2012-04-24

申请号：US12719451

申请日：2010-03-08

Applicant: Kei Hirata ,  Atsushi Yamaguchi ,  Masaya Kato ,  Hideyuki Ukita ,  Kenkichi Anagawa ,  Minoru Ota

Inventor： Kei Hirata ,  Atsushi Yamaguchi ,  Masaya Kato ,  Hideyuki Ukita ,  Kenkichi Anagawa ,  Minoru Ota

IPC: G11B5/10 ,  G11B5/31

CPC classification number: G11B5/315 ,  G11B5/1278

Abstract: A perpendicular magnetic write head is provided with a magnetic pole and a pair of side shields disposed on both sides of the magnetic pole in a cross track direction with side gaps in between. Each of the pair of side shields is configured in such a manner that a saturation magnetic flux density thereof increases as a distance from the magnetic pole in the cross track direction increases. Such a configuration allows unwanted divergence component of magnetic flux in a recording magnetic field to be captured while avoiding any excessive capturing of the recording magnetic field, and while preventing any intensity reduction of the recording magnetic field in its entirety. As a result, the recording magnetic field is maintained to have an adequate intensity and spreading of the recording magnetic field is suppressed, so that the recording capabilities are improved.

Abstract translation: 垂直磁性写头设置有磁极和一对侧屏蔽件，其设置在磁极的两侧上，并且在横向方向上具有侧间隙。 一对侧面屏蔽中的每一个被构造成使得其饱和磁通密度随着在横向上的磁极的距离增加而增加。 这样的配置允许在避免记录磁场的任何过度捕获的同时捕获记录磁场中的磁通量的不期望的发散分量，并且同时防止整个记录磁场的强度降低。 结果，记录磁场被保持为具有足够的强度，并且抑制了记录磁场的扩展，从而提高了记录能力。

公开(公告)号：US08072706B2

公开(公告)日：2011-12-06

申请号：US12588440

申请日：2009-10-15

Applicant: Kei Hirata ,  Hideyuki Ukita ,  Shin Narushima ,  Isamu Toba ,  Hiromichi Umehara ,  Hisayoshi Watanabe ,  Hideyuki Yatsu

Inventor： Kei Hirata ,  Hideyuki Ukita ,  Shin Narushima ,  Isamu Toba ,  Hiromichi Umehara ,  Hisayoshi Watanabe ,  Hideyuki Yatsu

IPC: G11B5/127

CPC classification number: G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

Abstract: A main magnetic pole includes a first part extending from a medium facing surface to a point at a predetermined distance from the medium facing surface, and a second part other than the first part. An accommodation part for accommodating the main magnetic pole includes: a first layer having a groove; a second layer lying between the first layer and the main magnetic pole in the first layer's groove; and a third layer interposed in part between the second layer and the main magnetic pole in the first layer's groove. The second layer is formed of a metal material different from a material used to form the first layer. The third layer is formed of an inorganic insulating material. The second and third layers lie between the first layer and the first part. The second layer lies between the bottom of the first layer's groove and the second part, but the third layer does not. The distance between the bottom of the first layer's groove and the second part is smaller than that between the bottom and the first part.

Abstract translation: 主磁极包括从面向介质的表面延伸到与介质相对表面预定距离的点的第一部分和除第一部分之外的第二部分。 用于容纳主磁极的容纳部分包括：具有凹槽的第一层; 位于第一层槽中的第一层和主磁极之间的第二层; 以及在第一层槽中的部分地介于第二层和主磁极之间的第三层。 第二层由与用于形成第一层的材料不同的金属材料形成。 第三层由无机绝缘材料形成。 第二层和第三层位于第一层和第一层之间。 第二层位于第一层凹槽的底部和第二部分之间，但第三层不存在。 第一层槽的底部和第二部分之间的距离小于底部和第一部分之间的距离。

公开(公告)号：US20110216443A1

公开(公告)日：2011-09-08

申请号：US12719451

申请日：2010-03-08

Applicant: Kei Hirata ,  Atsushi Yamaguchi ,  Masaya Kato ,  Hideyuki Ukita ,  Kenkichi Anagawa ,  Minoru Ota

Inventor： Kei Hirata ,  Atsushi Yamaguchi ,  Masaya Kato ,  Hideyuki Ukita ,  Kenkichi Anagawa ,  Minoru Ota

IPC: G11B5/10

CPC classification number: G11B5/315 ,  G11B5/1278

Abstract: A perpendicular magnetic write head is provided with a magnetic pole and a pair of side shields disposed on both sides of the magnetic pole in a cross track direction with side gaps in between. Each of the pair of side shields is configured in such a manner that a saturation magnetic flux density thereof increases as a distance from the magnetic pole in the cross track direction increases. Such a configuration allows unwanted divergence component of magnetic flux in a recording magnetic field to be captured while avoiding any excessive capturing of the recording magnetic field, and while preventing any intensity reduction of the recording magnetic field in its entirety. As a result, the recording magnetic field is maintained to have an adequate intensity and spreading of the recording magnetic field is suppressed, so that the recording capabilities are improved.

Abstract translation: 垂直磁性写头设置有磁极和一对侧屏蔽件，其设置在磁极的两侧上，并且在横向方向上具有侧间隙。 一对侧面屏蔽中的每一个被构造成使得其饱和磁通密度随着在横向上的磁极的距离增加而增加。 这样的配置允许在避免记录磁场的任何过度捕获的同时捕获记录磁场中的磁通量的不期望的发散分量，并且同时防止整个记录磁场的强度降低。 结果，记录磁场被保持为具有足够的强度，并且抑制了记录磁场的扩展，从而提高了记录能力。

公开(公告)号：US20110127234A1

公开(公告)日：2011-06-02

申请号：US12591745

申请日：2009-11-30

Applicant: Hisayoshi Watanabe ,  Masachika Hashino ,  Michitoshi Tsuchiya ,  Koichi Otani ,  Tatsuhiro Nojima ,  Tsutomu Nishinaga ,  Hideyuki Ukita

Inventor： Hisayoshi Watanabe ,  Masachika Hashino ,  Michitoshi Tsuchiya ,  Koichi Otani ,  Tatsuhiro Nojima ,  Tsutomu Nishinaga ,  Hideyuki Ukita

IPC: G11B5/127

CPC classification number: G11B5/115 ,  G11B5/1278 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

Abstract: A manufacturing method for a magnetic head includes the steps of; forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps; forming first and second side shields; forming an upper gap; and forming an upper shield. In the step of forming the structure, an initial lower gap layer is formed on the lower shield, the initial lower gap layer including a pre-lower-gap portion, and two to-be-removed portions that are located on opposite sides of the pre-lower-gap portion. Then, a protrusion including the main magnetic pole and the first and second side gaps is formed on the pre-lower-gap portion. With the top surface of the protrusion covered with a mask, the initial lower gap layer is etched in part to thereby form the lower gap.

Abstract translation: 一种用于磁头的制造方法包括以下步骤： 在下屏蔽上形成结构，该结构包括下间隙，主磁极和第一和第二侧隙; 形成第一和第二侧面罩; 形成上部间隙; 并形成上护罩。 在形成该结构的步骤中，在下屏蔽件上形成初始下间隙层，初始下间隙层包括预先下间隙部分，以及两个待除去部分，其位于 前下间隙部分。 然后，在前下间隙部分上形成包括主磁极和第一和第二侧间隙的突起。 在凸起的顶表面被掩模覆盖的情况下，初始的下间隙层被部分蚀刻，从而形成下间隙。