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1. 发明授权

US07382578B2 Thin film magnetic head, method of manufacturing the same and magnetic recording apparatus 有权
标题翻译：薄膜磁头，制造方法和磁记录装置
公开(公告)号：US07382578B2
公开(公告)日：2008-06-03
申请号：US11062497
申请日：2005-02-23
申请人： Naoto Matono , Yasuyuki Notsuke
发明人： Naoto Matono , Yasuyuki Notsuke
IPC分类号： G11B5/147
CPC分类号： G11B5/3163 , G11B5/1278
摘要： Provided is a method of manufacturing a thin film magnetic head capable of manufacturing a thin film magnetic head with as high performance as possible. A magnetic pole layer is formed so as to have a laminate structure in which an auxiliary magnetic pole layer (including an adjacent portion and a nonadjacent portion) extending from a first flare point to the rear and a main magnetic pole layer (including a front end portion and a rear end portion) extending from an air bearing surface to the rear through the first flare point are laminated in this order. As (1) a recording track width is controlled with high precision through forming the main magnetic pole layer with high precision, (2) recording is stably performed by an increase in the amount of magnetic flux contained in the main magnetic pole layer, and (3) information recorded on a recording medium is stably maintained through preventing information erasing without intention, the thin film magnetic head can achieve higher performance.
摘要翻译：提供一种能够制造尽可能高性能的薄膜磁头的薄膜磁头的制造方法。磁极层形成为具有从第一扩张点向后延伸的辅助磁极层（包括相邻部分和不相邻部分）的辅助磁极层和主磁极层（包括前端部分和后端部）以空气轴承表面延伸到后部通过第一扩张点被依次层叠。如（1）通过高精度地形成主磁极层，高精度地控制记录磁道宽度，（2）通过增加主磁极层中所含的磁通量的量来稳定地进行记录，和（ 3）通过防止信息消除而无意地稳定地保持记录在记录介质上的信息，薄膜磁头可以实现更高的性能。

2. 发明授权

US07154707B2 Thin film magnetic head and magnetic recording apparatus 有权
标题翻译：薄膜磁头和磁记录装置
公开(公告)号：US07154707B2
公开(公告)日：2006-12-26
申请号：US10805408
申请日：2004-03-22
申请人： Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
发明人： Yuichi Watabe , Norikazu Ota , Yasuyuki Notsuke , Susumu Aoki , Tetsuya Roppongi , Naoto Matono
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/313 , G11B5/3967
摘要： Provided is a thin film magnetic head capable of securing recording characteristics even in the case where a return pole layer is disposed on a medium-outgoing side of the pole layer. The return yoke layer is disposed on a trailing side of the pole layer, and a neck height NH is within a range of NH≦W1 (a width of a front end portion in a main pole layer)+0.05 μm, and a height ratio (a ratio of the neck height NH to a throat height TH) NH/TH is within a range of 0.5
摘要翻译：提供了即使在极性层的介质输出侧设置返回极层的情况下也能够确保记录特性的薄膜磁头。返回轭层设置在极层的后侧，颈部高度NH在NH <= W 1（主极层的前端部的宽度）+0.05μm的范围内，并且高度比（颈部高度NH与喉部高度TH的比）NH / TH在0.5

3. 发明授权

US07061719B2 Thin film magnetic head and method of manufacturing the same 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US07061719B2
公开(公告)日：2006-06-13
申请号：US10673333
申请日：2003-09-30
申请人： Naoto Matono , Norikazu Ota , Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke
发明人： Naoto Matono , Norikazu Ota , Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3166 , G11B5/3903 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： A thin film magnetic head which has a thin film coil for generating a magnetic flux and a magnetic pole layer for emitting the magnetic flux generated by the thin film coil toward a recording medium. The magnetic pole layer having a stacked structure including a main magnetic pole layer, an auxiliary magnetic pole layer, and a non-magnetic pole layer. The main magnetic pole layer is disposed so as to be exposed in a recording medium facing surface which faces the recording medium. The auxiliary magnetic pole layer has one end face recessed from the recording medium facing surface and which is disposed so as to face a part of the main magnetic pole layer. The non-magnetic layer is disposed so as to be sandwiched between the main magnetic pole layer and the auxiliary magnetic pole layer.
摘要翻译：一种薄膜磁头，其具有用于产生磁通的薄膜线圈和用于将由薄膜线圈产生的磁通朝向记录介质发射的磁极层。具有包括主磁极层，辅助磁极层和非磁极层的堆叠结构的磁极层。主磁极层被设置为暴露在面向记录介质的面向记录介质的表面上。辅助磁极层具有从记录介质相对表面凹陷的一个端面并且被设置为面对主磁极层的一部分。非磁性层被设置成夹在主磁极层和辅助磁极层之间。

4. 发明申请

US20060098339A1 Method for manufacturing a magnetic head using a multi-stage ion milling 有权
标题翻译：使用多级离子铣削制造磁头的方法
公开(公告)号：US20060098339A1
公开(公告)日：2006-05-11
申请号：US11266350
申请日：2005-11-04
申请人： Yoshihiko Koyama , Naoto Matono , Yasuyuki Notsuke
发明人： Yoshihiko Koyama , Naoto Matono , Yasuyuki Notsuke
IPC分类号： G11B5/147
CPC分类号： G11B5/3169 , G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49052
摘要： A method for manufacturing a magnetic head for perpendicular magnetic recording is disclosed. The method comprising: a first step of depositing a non-magnetic film over and around the main magnetic pole, and subsequently polishing and planarizing the non-magnetic film, wherein the non-magnetic film is made of a non-magnetic material which exhibits a lower ion milling rate than that of a magnetic metal material which constitutes the main magnetic pole; a second step of etching the surface by means of ion milling at a first angle relative to a stacked direction of the magnetic head, to form a stepped portion in which the main magnetic pole is lower from the non-magnetic film around the main magnetic pole; and a third step of etching the stepped portion, by means of ion milling, at a second angle relative to the stacked direction, wherein the second angle is larger than the first angle.
摘要翻译：公开了用于制造用于垂直磁记录的磁头的方法。该方法包括：第一步骤，在主磁极上方和周围沉积非磁性膜，随后抛光和平面化非磁性膜，其中非磁性膜由非磁性材料制成，其表现出比构成主磁极的磁性金属材料的离子研磨速度低; 通过离子铣削相对于磁头的堆叠方向以第一角度蚀刻表面的第二步骤，以形成主磁极从主磁极周围的非磁性膜下降的阶梯部分 ; 以及第三步骤，通过离子研磨，相对于所述堆叠方向以第二角蚀刻所述阶梯部分，其中所述第二角度大于所述第一角度。

5. 发明申请

US20050219750A1 Thin film magnetic head, method of manufacturing the same and magnetic recording apparatus 有权
标题翻译：薄膜磁头，制造方法和磁记录装置
公开(公告)号：US20050219750A1
公开(公告)日：2005-10-06
申请号：US11062497
申请日：2005-02-23
申请人： Naoto Matono , Yasuyuki Notsuke
发明人： Naoto Matono , Yasuyuki Notsuke
IPC分类号： G11B5/31 , G11B5/127 , G11B5/147
CPC分类号： G11B5/3163 , G11B5/1278
摘要： Provided is a method of manufacturing a thin film magnetic head capable of manufacturing a thin film magnetic head with as high performance as possible. A magnetic pole layer is formed so as to have a laminate structure in which an auxiliary magnetic pole layer (including an adjacent portion and a nonadjacent portion) extending from a first flare point to the rear and a main magnetic pole layer (including a front end portion and a rear end portion) extending from an air bearing surface to the rear through the first flare point are laminated in this order. As (1) a recording track width is controlled with high precision through forming the main magnetic pole layer with high precision, (2) recording is stably performed by an increase in the amount of magnetic flux contained in the main magnetic pole layer, and (3) information recorded on a recording medium is stably maintained through preventing information erasing without intention, the thin film magnetic head can achieve higher performance.
摘要翻译：提供一种能够制造尽可能高性能的薄膜磁头的薄膜磁头的制造方法。磁极层形成为具有从第一扩张点向后延伸的辅助磁极层（包括相邻部分和不相邻部分）的辅助磁极层和主磁极层（包括前端部分和后端部）以空气轴承表面延伸到后部通过第一扩张点被依次层叠。如（1）通过高精度地形成主磁极层，高精度地控制记录磁道宽度，（2）通过增加主磁极层中所含的磁通量的量来稳定地进行记录，和（ 3）通过防止信息消除而无意地稳定地保持记录在记录介质上的信息，薄膜磁头可以实现更高的性能。

6. 发明授权

US07503107B2 Method for manufacturing a magnetic head using a multi-stage ion milling 有权
标题翻译：使用多级离子铣削制造磁头的方法
公开(公告)号：US07503107B2
公开(公告)日：2009-03-17
申请号：US11266350
申请日：2005-11-04
申请人： Yoshihiko Koyama , Naoto Matono , Yasuyuki Notsuke
发明人： Yoshihiko Koyama , Naoto Matono , Yasuyuki Notsuke
IPC分类号： G11B5/127 , G11B5/147
CPC分类号： G11B5/3169 , G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49052
摘要： A method for manufacturing a magnetic head for perpendicular magnetic recording is disclosed. The method comprising: a first step of depositing a non-magnetic film over and around the main magnetic pole, and subsequently polishing and planarizing the non-magnetic film, wherein the non-magnetic film is made of a non-magnetic material which exhibits a lower ion milling rate than that of a magnetic metal material which constitutes the main magnetic pole; a second step of etching the surface by use of ion milling at a first angle relative to a stacked direction of the magnetic head, to form a stepped portion in which the main magnetic pole is lower from the non-magnetic film around the main magnetic pole; and a third step of etching the stepped portion, by use of ion milling, at a second angle relative to the stacked direction, wherein the second angle is larger than the first angle.
摘要翻译：公开了用于制造用于垂直磁记录的磁头的方法。该方法包括：第一步骤，在主磁极上方和周围沉积非磁性膜，随后抛光和平面化非磁性膜，其中非磁性膜由非磁性材料制成，其表现出比构成主磁极的磁性金属材料的离子研磨速度低; 通过使用相对于磁头的堆叠方向的第一角度的离子铣削来蚀刻表面的第二步骤，以形成主磁极从主磁极周围的非磁性膜下降的阶梯部分 ; 以及第三步骤，通过使用离子铣削，相对于所述堆叠方向以第二角蚀刻所述阶梯部分，其中所述第二角度大于所述第一角度。

7. 发明申请

US20050229387A1 Method of manufacturing magnetic head for perpendicular magnetic recording 失效
标题翻译：用于垂直磁记录的磁头制造方法
公开(公告)号：US20050229387A1
公开(公告)日：2005-10-20
申请号：US11041266
申请日：2005-01-25
申请人： Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke , Tetsuya Roppongi
发明人： Yuichi Watabe , Susumu Aoki , Yasuyuki Notsuke , Tetsuya Roppongi
IPC分类号： G11B5/31 , G11B5/127 , G11B5/147
CPC分类号： G11B5/147 , G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/3163 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49048 , Y10T29/4906
摘要： A main pole layer of a magnetic head includes a first portion disposed at a distance from a medium facing surface, and a second portion that is smaller in thickness than the first portion and disposed between the first portion and the medium facing surface. The step of forming the main pole layer includes the steps of forming a plating layer such that one of ends of the plating layer closer to the medium facing surface is located at a position that coincides with the position of one of ends of the first portion closer to the medium facing surface; forming a first nonmagnetic layer to cover the plating layer; polishing the first nonmagnetic layer and the plating layer; forming a space by removing the plating layer; forming a magnetic layer, which will be the main pole layer, in the space and on the top surface of the first nonmagnetic layer; forming a second nonmagnetic layer to cover the magnetic layer; and polishing the second nonmagnetic layer and the magnetic layer.
摘要翻译：磁头的主极层包括设置在与介质相对表面一定距离处的第一部分，以及第二部分，该第二部分的厚度小于第一部分，并且设置在第一部分和介质面向表面之间。形成主极层的步骤包括以下步骤：形成电镀层，使得电镀层的靠近介质相对表面的端部之一位于与第一部分的端部中的一个端部的位置相近的位置处到面向中间的表面; 形成覆盖所述镀层的第一非磁性层; 抛光第一非磁性层和镀层; 通过去除镀层形成空间; 在第一非磁性层的空间和顶表面上形成作为主极层的磁性层; 形成第二非磁性层以覆盖所述磁性层; 并研磨第二非磁性层和磁性层。

8. 发明授权

US07453668B2 Thin film magnetic head, method of manufacturing the same, and magnetic recording apparatus 有权
标题翻译：薄膜磁头，其制造方法和磁记录装置
公开(公告)号：US07453668B2
公开(公告)日：2008-11-18
申请号：US11252038
申请日：2005-10-18
申请人： Susumu Aoki , Reiichi Kurumisawa , Norikazu Ota , Yasuyuki Notsuke , Yuichi Watabe
发明人： Susumu Aoki , Reiichi Kurumisawa , Norikazu Ota , Yasuyuki Notsuke , Yuichi Watabe
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49046
摘要： The present invention provides a method of manufacturing a thin film magnetic head capable of assuring recording characteristics by determining throat height with high precision. A TH specifying layer is formed so as to extend to a position P1 while being adjacent to a gap layer, and an auxiliary insulating layer is similarly formed so as to extend from the position P1 while being adjacent to the gap layer and specify throat height on the basis of the position P1. After that, a main insulating layer is formed so as to cover a thin film coil on the auxiliary insulating layer, and a yoke layer is formed so as to extend while being partially on the TH specifying layer. The throat height is determined accurately and stably on the basis of the position P1 by the auxiliary insulating layer.
摘要翻译：本发明提供一种能够通过高精度地确定喉部高度来确保记录特性的薄膜磁头的制造方法。 TH指定层形成为在与间隙层相邻的同时延伸到位置P1，并且辅助绝缘层类似地形成为从位置P 1延伸而邻近间隙层并指定喉部基于位置P 1的高度。之后，形成主绝缘层以覆盖辅助绝缘层上的薄膜线圈，并且形成磁轭层，以便部分地延伸到TH指定层。基于位置P 1由辅助绝缘层精确稳定地确定喉部高度。

9. 发明授权

US07433152B2 Perpendicular magnetic recording head, method of manufacturing the same, and magnetic recording apparatus 有权
公开(公告)号：US07433152B2
公开(公告)日：2008-10-07
申请号：US11393848
申请日：2006-03-31
申请人： Yuichi Watabe , Susumu Aoki , Reiichi Kurumisawa , Yasuyuki Notsuke , Norikazu Ota
发明人： Yuichi Watabe , Susumu Aoki , Reiichi Kurumisawa , Yasuyuki Notsuke , Norikazu Ota
IPC分类号： G11B5/147
CPC分类号： G11B5/3967 , G11B5/1278 , G11B5/3116 , G11B5/3143
摘要： A perpendicular magnetic recording head capable of minimizing the possibility of erasing recorded information without intention at the time of recording information is provided. A pole layer has a structure in which a main pole layer disposed on a leading side and an auxiliary pole layer disposed on a trailing side are laminated. Even if a part of a magnetic flux contained in the auxiliary pole layer is directly emitted from an air bearing surface to outside not via the main pole layer, as the magnetic flux is contained in the magnetic layer, the magnetic flux is not easily emitted from the air bearing surface to the outside directly. Therefore, an unnecessary perpendicular magnetic field is not easily generated by the magnetic flux. Thereby, a recording medium is not easily magnetized again by the unnecessary magnetic field, so information recorded on the recording medium is not easily erased without intention.

10. 发明申请

US20060098338A1 Perpendicular magnetic recording head, method of manufacturing the same, and magnetic recording apparatus 有权
公开(公告)号：US20060098338A1
公开(公告)日：2006-05-11
申请号：US11264171
申请日：2005-11-02
申请人： Yuichi Watabe , Susumu Aoki , Reiichi Kurumisawa , Yasuyuki Notsuke , Norikazu Ota
发明人： Yuichi Watabe , Susumu Aoki , Reiichi Kurumisawa , Yasuyuki Notsuke , Norikazu Ota
IPC分类号： G11B5/147
CPC分类号： G11B5/3967 , G11B5/1278 , G11B5/3116 , G11B5/3143
摘要： A perpendicular magnetic recording head capable of minimizing the possibility of erasing recorded information without intention at the time of recording information is provided. A pole layer has a structure in which a main pole layer disposed on a leading side and an auxiliary pole layer disposed on a trailing side are laminated. Even if a part of a magnetic flux contained in the auxiliary pole layer is directly emitted from an air bearing surface to outside not via the main pole layer, as the magnetic flux is contained in the magnetic layer, the magnetic flux is not easily emitted from the air bearing surface to the outside directly. Therefore, an unnecessary perpendicular magnetic field is not easily generated by the magnetic flux. Thereby, a recording medium is not easily magnetized again by the unnecessary magnetic field, so information recorded on the recording medium is not easily erased without intention.

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