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

US20080239580A1 Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head including pole layer and two shields that sandwich the pole layer 有权
标题翻译：用于垂直磁记录的磁头及其制造方法，磁头包括磁极层和夹住极层的两个屏蔽层
公开(公告)号：US20080239580A1
公开(公告)日：2008-10-02
申请号：US11727372
申请日：2007-03-26
申请人： Tatsuya Harada , Koichi Otani , Hidetaka Kawano , Kenji Yokoyama , Naoto Matono
发明人： Tatsuya Harada , Koichi Otani , Hidetaka Kawano , Kenji Yokoyama , Naoto Matono
IPC分类号： G11B5/147 , G03C5/00 , G11B5/54
CPC分类号： G11B5/3133 , G11B5/3163 , G11B5/6064 , Y10T29/49044
摘要： A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The magnetic head further incorporates an antireflection film disposed between the first shield and the first gap layer or between the first gap layer and the pole layer. The pole layer is formed by frame plating.
摘要翻译：磁头包括：面向介质的表面; 线圈极层; 第一和第二屏蔽设置成夹在其间的极层; 设置在所述第一屏蔽和所述极层之间的第一间隙层; 设置在第二屏蔽和极层之间的第二间隙层; 和基材。第一屏蔽件比第二屏蔽件更靠近基板。磁头还包括设置在第一屏蔽和第一间隙层之间或者设置在第一间隙层和极层之间的抗反射膜。极层通过框架电镀形成。

2. 发明授权

US07826175B2 Thin-film magnetic head including two magnetic layers and flat spiral coil, and method of manufacturing same 有权
标题翻译：包括两个磁性层和扁平螺旋线圈的薄膜磁头及其制造方法
公开(公告)号：US07826175B2
公开(公告)日：2010-11-02
申请号：US11797473
申请日：2007-05-03
申请人： Kenji Yokoyama , Naoto Matono , Tatsuya Harada , Koichi Otani , Hidetaka Kawano
发明人： Kenji Yokoyama , Naoto Matono , Tatsuya Harada , Koichi Otani , Hidetaka Kawano
IPC分类号： G11B5/17
CPC分类号： G11B5/3116
摘要： A thin-film magnetic head includes a first magnetic layer, a flat, spiral-shaped coil, a toroidal-shaped insulating layer covering the coil, and a second magnetic layer touching the insulating layer and disposed to sandwich part of the coil between itself and the first magnetic layer. The second magnetic layer has a recessed portion that enters a space inside the insulating layer. In the recessed portion, the bottom surface of the second magnetic layer includes a first flat portion a part of which touches the top surface of the first magnetic layer, while the top surface of the second magnetic layer includes a second flat portion located in the space and substantially parallel to the first flat portion. In a cross section that divides each of the first and second magnetic layers into two equal portions, the second flat portion is 0.3 to 6 μm in length, and a distance from an edge of the interface between the top surface of the first magnetic layer and the first flat portion closer to the medium facing surface to an edge of the top surface of the first magnetic layer farther from the medium facing surface is 0.35 to 0.95 times the length of the first flat portion.
摘要翻译：薄膜磁头包括第一磁性层，扁平螺旋形线圈，覆盖线圈的环形绝缘层和接触绝缘层的第二磁性层，并且设置成将线圈的一部分夹在其自身与第一磁性层。第二磁性层具有进入绝缘层内的空间的凹部。在凹部中，第二磁性层的底表面包括第一平坦部分，其一部分接触第一磁性层的顶表面，而第二磁性层的顶表面包括位于该空间中的第二平坦部分并且基本上平行于第一平坦部分。在将第一和第二磁性层中的每一个分成两个相等部分的横截面中，第二平坦部分的长度为0.3至6μm，并且与第一磁性层的顶表面之间的界面边缘与第一平坦部分比第一平坦部分的长度更靠近第一磁性层的顶表面的与介质相对表面更远的介质面向表面的边缘的第一平坦部分是0.35至0.95倍。

3. 发明申请

US20080273273A1 Thin-film magnetic head including two magnetic layers and flat spiral coil, and method of manufacturing same 有权
标题翻译：包括两个磁性层和扁平螺旋线圈的薄膜磁头及其制造方法
公开(公告)号：US20080273273A1
公开(公告)日：2008-11-06
申请号：US11797473
申请日：2007-05-03
申请人： Kenji Yokoyama , Naoto Matono , Tatsuya Harada , Koichi Otani , Hidetaka Kawano
发明人： Kenji Yokoyama , Naoto Matono , Tatsuya Harada , Koichi Otani , Hidetaka Kawano
IPC分类号： G11B5/33
CPC分类号： G11B5/3116
摘要： A thin-film magnetic head includes a first magnetic layer, a flat, spiral-shaped coil, a toroidal-shaped insulating layer covering the coil, and a second magnetic layer touching the insulating layer and disposed to sandwich part of the coil between itself and the first magnetic layer. The second magnetic layer has a recessed portion that enters a space inside the insulating layer. In the recessed portion, the bottom surface of the second magnetic layer includes a first flat portion a part of which touches the top surface of the first magnetic layer, while the top surface of the second magnetic layer includes a second flat portion located in the space and substantially parallel to the first flat portion. In a cross section that divides each of the first and second magnetic layers into two equal portions, the second flat portion is 0.3 to 6 μm in length, and a distance from an edge of the interface between the top surface of the first magnetic layer and the first flat portion closer to the medium facing surface to an edge of the top surface of the first magnetic layer farther from the medium facing surface is 0.35 to 0.95 times the length of the first flat portion.
摘要翻译：薄膜磁头包括第一磁性层，扁平螺旋形线圈，覆盖线圈的环形绝缘层和接触绝缘层的第二磁性层，并且设置成将线圈的一部分夹在其自身与第一磁性层。第二磁性层具有进入绝缘层内的空间的凹部。在凹部中，第二磁性层的底表面包括第一平坦部分，其一部分接触第一磁性层的顶表面，而第二磁性层的顶表面包括位于该空间中的第二平坦部分并且基本上平行于第一平坦部分。在将第一和第二磁性层中的每一个分成两个相等部分的横截面中，第二平坦部分的长度为0.3-6μm，并且与第一磁性层的顶表面之间的界面的边缘与第一平坦部分比第一平坦部分的长度更靠近第一磁性层的顶表面的与介质相对表面更远的介质面向表面的边缘的第一平坦部分是0.35至0.95倍。

4. 发明申请

US20080247087A1 Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer 有权
标题翻译：用于垂直磁记录的磁头及其制造方法，磁头插入极层和两个屏蔽夹住极层
公开(公告)号：US20080247087A1
公开(公告)日：2008-10-09
申请号：US11783232
申请日：2007-04-06
申请人： Koichi Otani , Naoto Matono , Tatsuya Harada , Kenji Yokoyama , Hidetaka Kawano
发明人： Koichi Otani , Naoto Matono , Tatsuya Harada , Kenji Yokoyama , Hidetaka Kawano
IPC分类号： G11B5/187
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/3163 , G11B5/3967 , Y10T29/49046
摘要： A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The first shield has a first layer and a second layer disposed between the first layer and the first gap layer.
摘要翻译：磁头包括：面向介质的表面; 线圈极层; 第一和第二屏蔽设置成夹在其间的极层; 设置在所述第一屏蔽和所述极层之间的第一间隙层; 设置在第二屏蔽和极层之间的第二间隙层; 和基材。第一屏蔽件比第二屏蔽件更靠近基板。第一屏蔽具有设置在第一层和第一间隙层之间的第一层和第二层。

5. 发明授权

US08325440B2 Magnetic head including a pole layer and an antireflection film sandwiched by two shields 有权
标题翻译：磁头包括由两层屏蔽夹持的极层和抗反射膜
公开(公告)号：US08325440B2
公开(公告)日：2012-12-04
申请号：US11727372
申请日：2007-03-26
申请人： Tatsuya Harada , Koichi Otani , Hidetaka Kawano , Kenji Yokoyama , Naoto Matono
发明人： Tatsuya Harada , Koichi Otani , Hidetaka Kawano , Kenji Yokoyama , Naoto Matono
IPC分类号： G11B5/23 , G11B5/31 , G11B5/11 , H04R31/00
CPC分类号： G11B5/3133 , G11B5/3163 , G11B5/6064 , Y10T29/49044
摘要： A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The magnetic head further incorporates an antireflection film disposed between the first shield and the first gap layer or between the first gap layer and the pole layer. The pole layer is formed by frame plating.
摘要翻译：磁头包括：面向介质的表面; 线圈极层; 第一和第二屏蔽设置成夹在其间的极层; 设置在所述第一屏蔽和所述极层之间的第一间隙层; 设置在第二屏蔽和极层之间的第二间隙层; 和基材。第一屏蔽件比第二屏蔽件更靠近基板。磁头还包括设置在第一屏蔽和第一间隙层之间或者设置在第一间隙层和极层之间的抗反射膜。极层通过框架电镀形成。

6. 发明授权

US07995308B2 Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer 有权
标题翻译：用于垂直磁记录的磁头及其制造方法，磁头插入极层和两个屏蔽夹住极层
公开(公告)号：US07995308B2
公开(公告)日：2011-08-09
申请号：US11783232
申请日：2007-04-06
申请人： Koichi Otani , Naoto Matono , Tatsuya Harada , Kenji Yokoyama , Hidetaka Kawano
发明人： Koichi Otani , Naoto Matono , Tatsuya Harada , Kenji Yokoyama , Hidetaka Kawano
IPC分类号： G11B5/31
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/3163 , G11B5/3967 , Y10T29/49046
摘要： A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The first shield has a first layer and a second layer disposed between the first layer and the first gap layer.
摘要翻译：磁头包括：面向介质的表面; 线圈极层; 第一和第二屏蔽件设置成夹在其间的极层; 设置在所述第一屏蔽和所述极层之间的第一间隙层; 设置在第二屏蔽和极层之间的第二间隙层; 和基材。第一屏蔽件比第二屏蔽件更靠近基板。第一屏蔽具有设置在第一层和第一间隙层之间的第一层和第二层。

7. 发明授权

US08000064B2 Thin-film magnetic head for perpendicular magnetic recording and method of making the same 有权
标题翻译：用于垂直磁记录的薄膜磁头及其制作方法
公开(公告)号：US08000064B2
公开(公告)日：2011-08-16
申请号：US12000519
申请日：2007-12-13
申请人： Hidetaka Kawano , Hiromichi Umehara , Takamitsu Sakamoto , Koichi Otani , Noriaki Kasahara , Naoto Matono
发明人： Hidetaka Kawano , Hiromichi Umehara , Takamitsu Sakamoto , Koichi Otani , Noriaki Kasahara , Naoto Matono
IPC分类号： G11B5/11 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163 , Y10T29/49032 , Y10T29/49055 , Y10T156/10
摘要： A perpendicular recording thin-film magnetic head comprises a main magnetic pole having a tip main magnetic pole part extending in a height direction from a medium-opposing surface and a base main magnetic pole part connected to the tip main magnetic pole part on a side opposite from the medium-opposing surface side and wider than the tip main magnetic pole part in a track width direction; a return yoke extending in the height direction from the medium-opposing surface and magnetically coupling with the base main magnetic pole part at a position distanced from the medium-opposing surface in the height direction, while opposing the tip main magnetic pole part through a write gap layer in a bit length direction in the medium-opposing surface; and a main magnetic pole adjacent magnetic shield layer extending along at least part of side faces of the main magnetic pole other than the medium-opposing surface as seen in a laminating direction, while holding a nonmagnetic layer between the main magnetic pole and the main magnetic pole adjacent magnetic shield layer.
摘要翻译：垂直记录薄膜磁头包括：主磁极，其具有从介质相对表面在高度方向上延伸的尖端主磁极部分和在相对侧的一侧连接到尖端主磁极部分的基极主磁极部分从所述中等相对面侧开始并且比所述尖端主磁极部在轨道宽度方向上宽; 回转轭，其从中间相对表面在高度方向上延伸，并且在距离介质相对表面在高度方向上远离的位置处与基部主磁极部分磁耦合，同时通过写入方式与尖端主磁极部分相对中间相对表面中的位长度方向上的间隙层; 以及与沿着层叠方向观察的中间相对面以外的主磁极的至少一部分的侧面相邻的磁屏蔽层的主磁极，同时在主磁极和主磁体之间保持非磁性层极相邻磁屏蔽层。

8. 发明授权

US07796359B2 Magnetic head for perpendicular magnetic recording and method of manufacturing the same, the magnetic head including pole layer and two shields sandwiching the pole layer 有权
标题翻译：用于垂直磁记录的磁头及其制造方法，磁头包括磁极层和两个屏蔽夹住磁极层
公开(公告)号：US07796359B2
公开(公告)日：2010-09-14
申请号：US11892541
申请日：2007-08-23
申请人： Koichi Otani , Hiromichi Umehara , Naoto Matono , Takamitsu Sakamoto , Noriaki Kasahara , Hidetaka Kawano
发明人： Koichi Otani , Hiromichi Umehara , Naoto Matono , Takamitsu Sakamoto , Noriaki Kasahara , Hidetaka Kawano
IPC分类号： G11B5/127
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3133 , G11B5/6064
摘要： A magnetic head includes a pole layer, a first and a second shield disposed to sandwich the pole layer, and a nonmagnetic layer disposed around the first shield. The pole layer includes a first portion having an end face located in a medium facing surface, and a second portion that is located farther from the medium facing surface than is the first portion. The second portion is greater in thickness than the first portion. A bottom surface of the second portion is located closer to a substrate than is a bottom surface of the first portion. The first shield has a first top surface portion opposed to the bottom surface of the first portion with the first gap layer in between. The nonmagnetic layer has a second top surface portion opposed to the bottom surface of the second portion with the first gap layer in between. A difference in level is formed between the first and the second top surface portion such that the second top surface portion is located closer to the substrate than is the first top surface portion.
摘要翻译：磁头包括极层，设置成夹住极层的第一和第二屏蔽件以及围绕第一屏蔽件设置的非磁性层。极层包括具有位于介质面向表面中的端面的第一部分和比第一部分更远离介质面向表面的第二部分。第二部分的厚度大于第一部分。第二部分的底表面比第一部分的底表面更靠近基底。第一屏蔽具有与第一部分的底表面相对的第一顶表面部分，其间具有第一间隙层。非磁性层具有与第二部分的底表面相对的第二顶表面部分，其间具有第一间隙层。在第一顶表面部分和第二顶表面部分之间形成水平差，使得第二顶表面部分比第一顶表面部分更靠近基底。

9. 发明申请

US20090273863A1 Thin-film magnetic head for perpendicular magnetic recording and method of making the same 有权
标题翻译：用于垂直磁记录的薄膜磁头及其制作方法
公开(公告)号：US20090273863A1
公开(公告)日：2009-11-05
申请号：US12000519
申请日：2007-12-13
申请人： Hidetaka Kawano , Hiromichi Umehara , Takamitsu Sakamoto , Koichi Otani , Noriaki Kasahara , Naoto Matono
发明人： Hidetaka Kawano , Hiromichi Umehara , Takamitsu Sakamoto , Koichi Otani , Noriaki Kasahara , Naoto Matono
IPC分类号： G11B5/33 , B32B37/02
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163 , Y10T29/49032 , Y10T29/49055 , Y10T156/10
摘要： A perpendicular recording thin-film magnetic head comprises a main magnetic pole having a tip main magnetic pole part extending in a height direction from a medium-opposing surface and a base main magnetic pole part connected to the tip main magnetic pole part on a side opposite from the medium-opposing surface side and wider than the tip main magnetic pole part in a track width direction; a return yoke extending in the height direction from the medium-opposing surface and magnetically coupling with the base main magnetic pole part at a position distanced from the medium-opposing surface in the height direction, while opposing the tip main magnetic pole part through a write gap layer in a bit length direction in the medium-opposing surface; and a main magnetic pole adjacent magnetic shield layer extending along at least part of side faces of the main magnetic pole other than the medium-opposing surface as seen in a laminating direction, while holding a nonmagnetic layer between the main magnetic pole and the main magnetic pole adjacent magnetic shield layer.
摘要翻译：垂直记录薄膜磁头包括：主磁极，其具有从介质相对表面在高度方向上延伸的尖端主磁极部分和在相对侧的一侧连接到尖端主磁极部分的基极主磁极部分从所述中等相对面侧开始并且比所述尖端主磁极部在轨道宽度方向上宽; 回转轭，其从中间相对表面在高度方向上延伸，并且在距离介质相对表面在高度方向上远离的位置处与基部主磁极部分磁耦合，同时通过写入方式与尖端主磁极部分相对中间相对表面中的位长度方向上的间隙层; 以及与沿着层叠方向观察的中间相对面以外的主磁极的至少一部分的侧面相邻的磁屏蔽层的主磁极，同时在主磁极和主磁体之间保持非磁性层极相邻磁屏蔽层。

10. 发明申请

US20090052094A1 Magnetic head for perpendicular magnetic recording and method of manufacturing the same, the magnetic head including pole layer and two shields sandwiching the pole layer 有权
标题翻译：用于垂直磁记录的磁头及其制造方法，磁头包括磁极层和两个屏蔽夹住磁极层
公开(公告)号：US20090052094A1
公开(公告)日：2009-02-26
申请号：US11892541
申请日：2007-08-23
申请人： Koichi Otani , Hiromichi Umehara , Naoto Matono , Takamitsu Sakamoto , Noriaki Kasahara , Hidetaka Kawano
发明人： Koichi Otani , Hiromichi Umehara , Naoto Matono , Takamitsu Sakamoto , Noriaki Kasahara , Hidetaka Kawano
IPC分类号： G11B5/33
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3133 , G11B5/6064
摘要： A magnetic head includes a pole layer, a first and a second shield disposed to sandwich the pole layer, and a nonmagnetic layer disposed around the first shield. The pole layer includes a first portion having an end face located in a medium facing surface, and a second portion that is located farther from the medium facing surface than is the first portion. The second portion is greater in thickness than the first portion. A bottom surface of the second portion is located closer to a substrate than is a bottom surface of the first portion. The first shield has a first top surface portion opposed to the bottom surface of the first portion with the first gap layer in between. The nonmagnetic layer has a second top surface portion opposed to the bottom surface of the second portion with the first gap layer in between. A difference in level is formed between the first and the second top surface portion such that the second top surface portion is located closer to the substrate than is the first top surface portion.
摘要翻译：磁头包括极层，设置成夹住极层的第一和第二屏蔽件以及围绕第一屏蔽件设置的非磁性层。极层包括具有位于介质面向表面中的端面的第一部分和比第一部分更远离介质面向表面的第二部分。第二部分的厚度大于第一部分。第二部分的底表面比第一部分的底表面更靠近基底。第一屏蔽具有与第一部分的底表面相对的第一顶表面部分，其间具有第一间隙层。非磁性层具有与第二部分的底表面相对的第二顶表面部分，其间具有第一间隙层。在第一顶表面部分和第二顶表面部分之间形成水平差，使得第二顶表面部分比第一顶表面部分更靠近基底。

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