专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070177299A1 Magnetic head and method for production therefor 失效
标题翻译：磁头及其制造方法
公开(公告)号：US20070177299A1
公开(公告)日：2007-08-02
申请号：US11717899
申请日：2007-03-13
申请人： Kazue Kudo , Gen Oikawa , Tetsuya Okai , Ichiro Oodake , Hiromi Shiina
发明人： Kazue Kudo , Gen Oikawa , Tetsuya Okai , Ichiro Oodake , Hiromi Shiina
IPC分类号： G11B5/33 , C25C1/08 , G11B5/127
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3163 , Y10T428/115 , Y10T428/1186
摘要： At least one of lower and upper magnetic cores is composed of magnetic films each of which contains two or more elements of Co, Ni, and Fe, which are formed by electroplating in a plating bath with pH 2 or less, and which have a saturation magnetic flux density of 23,000 gauss or more.
摘要翻译：下磁芯和上磁芯中的至少一个磁芯由磁性膜组成，每个磁性膜含有两个或更多个Co，Ni和Fe元素，它们通过电镀在pH2或更小的电镀浴中形成，并且具有饱和磁通密度23000高斯或更高。

2. 发明授权

US07515380B2 Magnetic head and method for production therefor 失效
标题翻译：磁头及其制造方法
公开(公告)号：US07515380B2
公开(公告)日：2009-04-07
申请号：US11717899
申请日：2007-03-13
申请人： Kazue Kudo , Gen Oikawa , Tetsuya Okai , Ichiro Oodake , Hiromi Shiina
发明人： Kazue Kudo , Gen Oikawa , Tetsuya Okai , Ichiro Oodake , Hiromi Shiina
IPC分类号： G11B5/31
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3163 , Y10T428/115 , Y10T428/1186
摘要： At least one of lower and upper magnetic cores is composed of magnetic films each of which contains two or more elements of Co, Ni, and Fe, which are formed by electroplating in a plating bath with pH 2 or less, and which have a saturation magnetic flux density of 23,000 gauss or more.
摘要翻译：下磁芯和上磁芯中的至少一个磁芯由磁性膜组成，每个磁性膜含有两个或更多个Co，Ni和Fe元素，它们通过电镀在pH2或更小的电镀浴中形成，并且具有饱和磁通密度23000高斯或更高。

3. 发明授权

US07267757B2 Magnetic head utilizing a CoNiFe alloy with 60-80 weight percent Fe and method for production therefor 失效
标题翻译：磁头利用Fe-Fe-Fe合金，Fe-60％（重量），Fe及其生产方法
公开(公告)号：US07267757B2
公开(公告)日：2007-09-11
申请号：US10665910
申请日：2003-09-18
申请人： Kazue Kudo , Gen Oikawa , Tetsuya Okai , Ichiro Oodake , Hiromi Shiina
发明人： Kazue Kudo , Gen Oikawa , Tetsuya Okai , Ichiro Oodake , Hiromi Shiina
IPC分类号： C25C1/08 , G11B5/127
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3163 , Y10T428/115 , Y10T428/1186
摘要： At least one of lower and upper magnetic cores is composed of magnetic films each of which contains two or more elements of Co, Ni, and Fe, which are formed by electroplating in a plating bath with pH 2 or less, and which have a saturation magnetic flux density of 23,000 gauss or more.
摘要翻译：下磁芯和上磁芯中的至少一个磁芯由磁性膜组成，每个磁性膜含有两个或更多个Co，Ni和Fe元素，它们通过电镀在pH2或更小的电镀浴中形成，并且具有饱和磁通密度23000高斯或更高。

4. 发明申请

US20100157476A1 PERPENDICULAR MAGNETIC RECORDING HEAD 有权
标题翻译：全能磁记录头
公开(公告)号：US20100157476A1
公开(公告)日：2010-06-24
申请号：US12638911
申请日：2009-12-15
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116
摘要： A perpendicular magnetic recording head according to one embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the depths of the first magnetic films from an air bearing surface are smaller than the depth of the second magnetic film from the air bearing surface at least at a periphery of the main pole. A perpendicular magnetic recording head according to another embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the main pole and the first magnetic films have respective tapered portions whose thicknesses become larger toward the side opposite to an air bearing surface, and the tapered portions are in contact with the second magnetic film. Additional embodiments are also presented.
摘要翻译：根据一个实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中来自空气支承表面的第一磁性膜的深度至少在主极的周边处小于来自空气支承表面的第二磁性膜的深度。根据另一实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中，所述主极和所述第一磁性膜具有各自的锥形部分，所述锥形部分的厚度朝着与空气支承表面相对的一侧变大，并且所述锥形部分与所述第二磁性膜接触。还提供了另外的实施例。

5. 发明授权

US08351156B2 Perpendicular magnetic recording head having a main pole and first and second magnetic films peripheral to the main pole and having different depths from an air bearing surface 有权
标题翻译：垂直磁记录头具有主极和在主极周围的第一和第二磁膜，并且具有与空气支承表面不同的深度
公开(公告)号：US08351156B2
公开(公告)日：2013-01-08
申请号：US12638911
申请日：2009-12-15
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Tetsuya Okai , Gen Oikawa , Shouji Tokutake
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/1278 , G11B5/3116
摘要： A perpendicular magnetic recording head according to one embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the depths of the first magnetic films from an air bearing surface are smaller than the depth of the second magnetic film from the air bearing surface at least at a periphery of the main pole. A perpendicular magnetic recording head according to another embodiment includes a main pole; first magnetic films arranged on both sides of the main pole in a track width direction via nonmagnetic films; and a second magnetic film arranged on a trailing side of the main pole via a nonmagnetic film; wherein the main pole and the first magnetic films have respective tapered portions whose thicknesses become larger toward the side opposite to an air bearing surface, and the tapered portions are in contact with the second magnetic film. Additional embodiments are also presented.
摘要翻译：根据一个实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中来自空气支承表面的第一磁性膜的深度至少在主极的周边处小于来自空气支承表面的第二磁性膜的深度。根据另一实施例的垂直磁记录头包括主极; 通过非磁性膜在磁道宽度方向上布置在主极两侧的第一磁膜; 以及通过非磁性膜布置在所述主极的后侧的第二磁性膜; 其中，所述主极和所述第一磁性膜具有各自的锥形部分，所述锥形部分的厚度朝着与空气支承表面相对的一侧变大，并且所述锥形部分与所述第二磁性膜接触。还提供了另外的实施例。

6. 发明申请

US20110141615A1 MAGNETIC HEAD FOR PERPENDICULAR RECORDING 有权
标题翻译：磁头记录
公开(公告)号：US20110141615A1
公开(公告)日：2011-06-16
申请号：US12965277
申请日：2010-12-10
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
IPC分类号： G11B21/02 , G11B5/33
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163 , G11B5/6005 , Y10T428/11 , Y10T428/1171
摘要： According to one embodiment, a magnetic head for perpendicular recording includes a main pole, a first soft magnetic film disposed on a trailing side of the main pole, and a first nonmagnetic film interposed between the main pole and the first soft magnetic film. A thickness of the main pole is increased in a depth direction from an air bearing surface using an inclination, and a thickness of the first nonmagnetic film increases in the depth direction from the air bearing surface. In another embodiment, an angle from a horizontal plane of an upper surface of the first nonmagnetic film is greater than an angle from a horizontal plane of a lower surface of the first nonmagnetic film in contact with the main pole. Other heads, methods, and systems are described according to more embodiments.
摘要翻译：根据一个实施例，用于垂直记录的磁头包括主极，设置在主极的后侧的第一软磁膜和插在主极和第一软磁膜之间的第一非磁性膜。主轴的厚度使用倾斜从空气轴承面在深度方向上增大，第一非磁性膜的厚度在空气轴承面的深度方向上增大。在另一个实施例中，与第一非磁性膜的上表面的水平面的角度大于与主极接触的第一非磁性膜的下表面的水平面的角度。根据更多实施例描述其它头，方法和系统。

7. 发明申请

US20110002063A1 PERPENDICULAR MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING DEVICE SUITABLE FOR HIGH-DENSITY MAGNETIC RECORDING 有权
标题翻译：适用于高密度磁记录的全磁记录磁头和磁记录装置
公开(公告)号：US20110002063A1
公开(公告)日：2011-01-06
申请号：US12827999
申请日：2010-06-30
申请人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
发明人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
IPC分类号： G11B21/02 , G11B5/33
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both lateral sides of the main magnetic pole, the magnetic shield comprising: a first soft magnetic film with a relatively high saturation flux density positioned facing depthwise from a floating surface side thereof, a second soft magnetic film with a relatively low saturation flux density, and a first non-magnetic film. The head also includes a non-magnetic film interposed between the magnetic shield and the main magnetic pole, a first magnetic film magnetically coupled to the magnetic shield and the main magnetic pole on a side opposite a floating surface side thereof, and a coil surrounding a magnetic circuit, the magnetic circuit comprising the main magnetic pole and the first magnetic film. Other systems and methods are also described.
摘要翻译：根据一个实施例，垂直磁记录头包括具有后侧和两个侧面的主磁极，靠近主磁极的后侧和两侧的磁屏蔽，磁屏蔽包括：第一软磁具有从其浮动表面侧朝向深度方向定位的相对较高的饱和磁通密度的膜，具有相对低的饱和磁通密度的第二软磁膜和第一非磁性膜。头部还包括插入在磁屏蔽和主磁极之间的非磁性膜，磁性地耦合到磁屏蔽的第一磁性膜和与其浮动表面侧相对的一侧的主磁极，以及围绕所述磁路包括所述主磁极和所述第一磁性膜。还描述了其它系统和方法。

8. 发明授权

US08542462B2 Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording 有权
标题翻译：具有从空气轴承表面凹陷的非磁性膜的垂直磁记录头用于改善高密度磁记录
公开(公告)号：US08542462B2
公开(公告)日：2013-09-24
申请号：US12827999
申请日：2010-06-30
申请人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
发明人： Yohji Maruyama , Tadayuki Iwakura , Tetsuya Okai , Hiromi Shiina , Kazue Kudo
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both lateral sides of the main magnetic pole, the magnetic shield comprising: a first soft magnetic film with a relatively high saturation flux density positioned facing depthwise from a floating surface side thereof, a second soft magnetic film with a relatively low saturation flux density, and a first non-magnetic film. The head also includes a non-magnetic film interposed between the magnetic shield and the main magnetic pole, a first magnetic film magnetically coupled to the magnetic shield and the main magnetic pole on a side opposite a floating surface side thereof, and a coil surrounding a magnetic circuit, the magnetic circuit comprising the main magnetic pole and the first magnetic film. Other systems and methods are also described.
摘要翻译：根据一个实施例，垂直磁记录头包括具有后侧和两个侧面的主磁极，靠近主磁极的后侧和两侧的磁屏蔽，磁屏蔽包括：第一软磁具有从其浮动表面侧朝向深度方向定位的相对较高的饱和磁通密度的膜，具有相对低的饱和磁通密度的第二软磁膜和第一非磁性膜。头部还包括插入在磁屏蔽和主磁极之间的非磁性膜，磁性地耦合到磁屏蔽的第一磁性膜和与其浮动表面侧相对的一侧的主磁极，以及围绕所述磁路包括所述主磁极和所述第一磁性膜。还描述了其它系统和方法。

9. 发明授权

US08537493B2 Magnetic head for perpendicular recording 有权
标题翻译：磁头用于垂直记录
公开(公告)号：US08537493B2
公开(公告)日：2013-09-17
申请号：US12965277
申请日：2010-12-10
申请人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
发明人： Kazue Kudo , Hiromi Shiina , Yohji Maruyama , Shouji Tokutake , Tetsuya Okai
IPC分类号： G11B5/23 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163 , G11B5/6005 , Y10T428/11 , Y10T428/1171
摘要： According to one embodiment, a magnetic head for perpendicular recording includes a main pole, a first soft magnetic film disposed on a trailing side of the main pole, and a first nonmagnetic film interposed between the main pole and the first soft magnetic film. A thickness of the main pole is increased in a depth direction from an air bearing surface using an inclination, and a thickness of the first nonmagnetic film increases in the depth direction from the air bearing surface. In another embodiment, an angle from a horizontal plane of an upper surface of the first nonmagnetic film is greater than an angle from a horizontal plane of a lower surface of the first nonmagnetic film in contact with the main pole. Other heads, methods, and systems are described according to more embodiments.
摘要翻译：根据一个实施例，用于垂直记录的磁头包括主极，设置在主极的后侧的第一软磁膜和插在主极和第一软磁膜之间的第一非磁性膜。主轴的厚度使用倾斜从空气轴承面在深度方向上增大，第一非磁性膜的厚度在空气轴承面的深度方向上增大。在另一个实施例中，与第一非磁性膜的上表面的水平面的角度大于与主极接触的第一非磁性膜的下表面的水平面的角度。根据更多实施例描述其它头，方法和系统。

10. 发明申请

US20060087766A1 Thin film magnetic head with small track width 审中-公开
标题翻译：薄膜磁头，磁道宽度小
公开(公告)号：US20060087766A1
公开(公告)日：2006-04-27
申请号：US11258458
申请日：2005-10-24
申请人： Kazue Kudo , Youji Maruyama , Tetsuya Okai , Hiromi Shiina
发明人： Kazue Kudo , Youji Maruyama , Tetsuya Okai , Hiromi Shiina
IPC分类号： G11B5/147
CPC分类号： G11B5/147 , G11B5/1871 , G11B5/3163
摘要： In one embodiment, above a read head, a separating layer comprising a nonmagnetic insulating layer is formed. On the separating layer, a lower magnetic yoke is formed. On the lower magnetic yoke, a pedestal magnetic pole is formed at the front end (air bearing surface side). On the pedestal magnetic pole, a lower magnetic pole, a write gap and an upper magnetic pole are formed. The lower magnetic pole widens as the distance from the write gap increases. On the lower magnetic yoke, a conductor coil is formed via an insulating layer. On the upper magnetic pole, an upper magnetic yoke is formed to constitute a write head. The front end of the upper magnetic yoke is recessed from the front end of the upper magnetic pole. The front end portion of the upper magnetic yoke is magnetically connected with the upper magnetic pole whereas the rear end portion is magnetically connected with the lower magnetic yoke.
摘要翻译：在一个实施例中，在读取头之上，形成包括非磁性绝缘层的分离层。在分离层上形成下磁轭。在下磁轭上，在前端（空气支承面侧）形成基座磁极。在基座磁极上形成下磁极，写入间隙和上磁极。随着距离写入间隙的距离增加，下磁极变宽。在下磁轭上，通过绝缘层形成导体线圈。在上磁极上，形成上磁轭构成写磁头。上磁轭的前端从上磁极的前端凹入。上磁轭的前端部与上磁极磁连接，后端部与下磁轭磁连接。

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