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. 发明授权

US07684149B2 Magnetic head and magnetic disk storage apparatus mounting the same 失效
标题翻译：安装磁头和磁盘存储装置
公开(公告)号：US07684149B2
公开(公告)日：2010-03-23
申请号：US10976720
申请日：2004-10-29
申请人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
发明人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
IPC分类号： G11B5/40
CPC分类号： G11B5/1278 , G11B5/265 , G11B5/312 , G11B5/3143 , G11B5/3967
摘要： Embodiments of the invention provide a magnetic head which assures an improved format efficiency without increase in the magnetic field intensity applied at a read element. In one embodiment, a magnetic head incorporates a write head having a main pole and an auxiliary pole, and a read head having a read element between reader shields. An auxiliary shield as a magnetic body is provided between the main pole and reader shields or on the opposite side of the main pole with the reader shields between the main pole and the auxiliary shield.
摘要翻译：本发明的实施例提供了一种磁头，其确保了在读取元件处施加的磁场强度的增加而不会增加格式效率。在一个实施例中，磁头包括具有主极和辅助极的写入头，以及在读取器屏蔽之间具有读取元件的读取头。在主极和读取器屏蔽之间或主极的相对侧上设置有作为磁体的辅助屏蔽，读取器屏蔽在主极和辅助屏蔽之间。

2. 发明申请

US20060092575A1 Magnetic head and magnetic disk storage apparatus mounting the same 失效
标题翻译：安装磁头和磁盘存储装置
公开(公告)号：US20060092575A1
公开(公告)日：2006-05-04
申请号：US10976720
申请日：2004-10-29
申请人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
发明人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/265 , G11B5/312 , G11B5/3143 , G11B5/3967
摘要： Embodiments of the invention provide a magnetic head which assures an improved format efficiency without increase in the magnetic field intensity applied at a read element. In one embodiment, a magnetic head incorporates a write head having a main pole and an auxiliary pole, and a read head having a read element between reader shields. An auxiliary shield as a magnetic body is provided between the main pole and reader shields or on the opposite side of the main pole with the reader shields between the main pole and the auxiliary shield.
摘要翻译：本发明的实施例提供了一种磁头，其确保了在读取元件处施加的磁场强度的增加而不会增加格式效率。在一个实施例中，磁头包括具有主极和辅助极的写入头，以及在读取器屏蔽之间具有读取元件的读取头。在主极和读取器屏蔽之间或主极的相对侧上设置有作为磁体的辅助屏蔽，读取器屏蔽在主极和辅助屏蔽之间。

3. 发明申请

US20050141142A1 Magnetic recording head and magnetic disk storage apparatus mounting the magnetic head 失效
标题翻译：安装磁头的磁记录头和磁盘存储装置
公开(公告)号：US20050141142A1
公开(公告)日：2005-06-30
申请号：US11014025
申请日：2004-12-15
申请人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
发明人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
IPC分类号： G11B5/31 , G11B5/127 , G11B5/33 , G11B5/39
CPC分类号： G11B5/127 , G11B5/33
摘要： Embodiments of the invention provide a write head for perpendicular recording in which the magnetic field intensity applied at a read element is reduced with larger write-field gradients and the distance between a write element and a read element is small. In one embodiment, a pair of magnetic bodies for shielding a read element are provided on the leading and trailing sides of the read element respectively and whichever one of the two shields is the longer in the length from the air bearing surface is shorter than the length up to the back contact position PBK at which a main pole and an auxiliary pole are connected.
摘要翻译：本发明的实施例提供了用于垂直记录的写入头，其中在读取元件处施加的磁场强度随着更大的写入场梯度而减小，并且写入元件和读取元件之间的距离小。在一个实施例中，用于屏蔽读取元件的一对磁体分别设置在读取元件的前侧和后侧，并且两个屏蔽中的任何一个在距空气轴承表面的长度上较长的长度短于长度直到连接主极和辅助极的后接触位置P SUB BK 。

4. 发明授权

US07606006B2 Magnetic recording head and magnetic disk storage apparatus mounting the magnetic head 失效
标题翻译：安装磁头的磁记录头和磁盘存储装置
公开(公告)号：US07606006B2
公开(公告)日：2009-10-20
申请号：US11014025
申请日：2004-12-15
申请人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
发明人： Masafumi Mochizuki , Kaori Suzuki , Kimitoshi Etoh
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/127 , G11B5/33
摘要： Embodiments of the invention provide a write head for perpendicular recording in which the magnetic field intensity applied at a read element is reduced with larger write-field gradients and the distance between a write element and a read element is small. In one embodiment, a pair of magnetic bodies for shielding a read element are provided on the leading and trailing sides of the read element respectively and whichever one of the two shields is the longer in the length from the air bearing surface is shorter than the length up to the back contact position PBK at which a main pole and an auxiliary pole are connected.
摘要翻译：本发明的实施例提供了用于垂直记录的写入头，其中在读取元件处施加的磁场强度随着更大的写入场梯度而减小，并且写入元件和读取元件之间的距离小。在一个实施例中，用于屏蔽读取元件的一对磁体分别设置在读取元件的前侧和后侧，并且两个屏蔽中的任一个在距空气支承表面的长度上较长的长度短于长度直到连接主极和辅助极的后接触位置PBK。

5. 发明授权

US07990653B2 Perpendicular recording magnetic head with a main magnetic pole piece and an auxiliary magnetic pole piece 有权
标题翻译：垂直记录磁头，带有主磁极片和辅助磁极片
公开(公告)号：US07990653B2
公开(公告)日：2011-08-02
申请号：US11796196
申请日：2007-04-27
申请人： Masafumi Mochizuki , Shuji Nishida , Kimitoshi Etoh , Isao Nunokawa
发明人： Masafumi Mochizuki , Shuji Nishida , Kimitoshi Etoh , Isao Nunokawa
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Embodiments in accordance with the present invention provide a perpendicular recording magnetic head whose dimensional dependency on the nonuniformity of magnetic field strength and distribution during manufacture is minimized, with narrowed tracks and without attenuation or erasure of adjacent track data while maintaining high magnetic field strength. According to one embodiment, a magnetic material (trailing/side shield) for creating a steep gradient of magnetic field strength is provided at a trailing side of a pole tip of a main magnetic pole piece and in a direction of the track width. The magnetic head is formed so that a gap (side gap length “gl”) between a side shield and a throat height portion of the pole tip progressively decreases with an increasing distance from an air-bearing surface, in a direction of an element height. That is, side gap length “gl” (2) at an element height position P2 is made smaller than side gap length “gl” (1) at an air-bearing surface position P1 so as to satisfy a relationship of gl(1)>gl(2).
摘要翻译：根据本发明的实施例提供一种垂直记录磁头，其在制造期间对磁场强度和分布的不均匀性的尺寸依赖性被最小化，具有变窄的轨迹，并且在保持高磁场强度的同时没有相邻轨道数据的衰减或擦除。根据一个实施例，用于产生陡峭磁场强度梯度的磁性材料（尾部/侧面屏蔽）设置在主磁极片的磁极尖端的后侧和磁道宽度的方向上。磁头形成为使得侧挡板和极尖端的喉部高度部分之间的间隙（侧隙长度“gl”）随着与空气轴承表面的距离的增加而逐渐减小，元件高度方向。也就是说，使元件高度位置P2处的侧面间隙长度“gl”（2）在空气轴承表面位置P1处小于侧面间隙长度“gl”（1），以满足gl（1） > gl（2）。

6. 发明申请

US20070253107A1 Perpendicular recording magnetic head 有权
标题翻译：垂直记录磁头
公开(公告)号：US20070253107A1
公开(公告)日：2007-11-01
申请号：US11796196
申请日：2007-04-27
申请人： Masafumi Mochizuki , Shuji Nishida , Kimitoshi Etoh , Isao Nunokawa
发明人： Masafumi Mochizuki , Shuji Nishida , Kimitoshi Etoh , Isao Nunokawa
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Embodiments in accordance with the present invention provide a perpendicular recording magnetic head whose dimensional dependency on the nonuniformity of magnetic field strength and distribution during manufacture is minimized, with narrowed tracks and without attenuation or erasure of adjacent track data while maintaining high magnetic field strength. According to one embodiment, a magnetic material (trailing/side shield) for creating a steep gradient of magnetic field strength is provided at a trailing side of a pole tip of a main magnetic pole piece and in a direction of the track width. The magnetic head is formed so that a gap (side gap length “gl”) between a side shield and a throat height portion of the pole tip progressively decreases with an increasing distance from an air-bearing surface, in a direction of an element height. That is, side gap length “gl” (2) at an element height position P2 is made smaller than side gap length “gl” (1) at an air-bearing surface position P1 so as to satisfy a relationship of gl(1)>gl(2).
摘要翻译：根据本发明的实施例提供一种垂直记录磁头，其在制造期间对磁场强度和分布的不均匀性的尺寸依赖性被最小化，具有变窄的轨迹，并且在保持高磁场强度的同时没有相邻轨道数据的衰减或擦除。根据一个实施例，用于产生陡峭磁场强度梯度的磁性材料（尾部/侧面屏蔽）设置在主磁极片的磁极尖端的后侧和磁道宽度的方向上。磁头形成为使得侧挡板和极尖端的喉部高度部分之间的间隙（侧隙长度“gl”）随着与空气轴承表面的距离的增加而逐渐减小，元件高度方向。也就是说，使元件高度位置P 2处的侧面间隙长度“gl”（2）在空气轴承表面位置P 1处小于侧面间隙长度“gl”（1），以满足gl（ 1）> gl（2）。

7. 发明申请

US20070211382A1 Magnetic head and magnetic disk storage apparatus mounting the head 有权
标题翻译：安装磁头的磁头和磁盘存储装置
公开(公告)号：US20070211382A1
公开(公告)日：2007-09-13
申请号：US11707415
申请日：2007-02-15
申请人： Masafumi Mochizuki , Kimitoshi Etoh , Youji Maruyama , Hiroshi Fukui
发明人： Masafumi Mochizuki , Kimitoshi Etoh , Youji Maruyama , Hiroshi Fukui
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/1872 , G11B5/3146
摘要： Embodiments in accordance with the present invention provide a magnetic head in which broadening of the write-field distribution in the track-width direction can be decreased without reducing the write-field intensity. A main pole includes a pole tip having a part which provides the write track-width and a yoke part recessed from the air bearing surface in the element height direction, the pole tip including at least two magnetic films having different track-width directions, and the throat height at the trailing side being made smaller than the throat height at the leading side.
摘要翻译：根据本发明的实施例提供一种磁头，其中可以减小磁道宽度方向上的写入场分布的扩大，而不降低写入场强度。主极包括具有提供写入轨道宽度的部分的磁极尖端和在元件高度方向上从空气轴承表面凹陷的磁轭部分，磁极末端包括具有不同轨道宽度方向的至少两个磁性膜，以及在后侧的喉部高度小于前侧的喉部高度。

8. 发明申请

US20060262453A1 Magnetic recording head and magnetic disk storage apparatus mounting the magnetic head 审中-公开
标题翻译：安装磁头的磁记录头和磁盘存储装置
公开(公告)号：US20060262453A1
公开(公告)日：2006-11-23
申请号：US11436382
申请日：2006-05-17
申请人： Masafumi Mochizuki , Yasutaka Nishida , Takehiko Hamaguchi , Kimitoshi Etoh
发明人： Masafumi Mochizuki , Yasutaka Nishida , Takehiko Hamaguchi , Kimitoshi Etoh
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/1871 , G11B5/313 , G11B5/3163
摘要： Embodiments of the invention provide a magnetic head which can suppress broadening of the magnetic field distribution in the track-width direction without reducing the magnetic field intensity. In one embodiment, a main pole is composed of a pole tip having a part providing a write-track width, and a yoke part recessed from the air bearing surface in the element-height direction, where the trailing side surface of the pole tip is made as an asymmetric structure with respect to the track center.
摘要翻译：本发明的实施例提供一种可以抑制磁道宽度方向的磁场分布的扩大而不降低磁场强度的磁头。在一个实施例中，主极由具有提供写入轨道宽度的部分的极尖和从元件高度方向上的空气轴承表面凹陷的磁极部分组成，其中极尖的后侧表面为作为相对于轨道中心的不对称结构。

9. 发明授权

US07054105B2 Magnetic recording head for perpendicular recording and including a portion protruding toward a mail pole and magnetic disc storage apparatus mounting the magnetic head 有权
标题翻译：用于垂直记录的磁记录头，包括向邮件杆突出的部分和安装磁头的磁盘存储装置
公开(公告)号：US07054105B2
公开(公告)日：2006-05-30
申请号：US10693886
申请日：2003-10-28
申请人： Masafumi Mochizuki , Atsushi Nakamura , Kimitoshi Etoh
发明人： Masafumi Mochizuki , Atsushi Nakamura , Kimitoshi Etoh
IPC分类号： G11B5/187
CPC分类号： G11B5/1278 , G11B5/012 , G11B5/09 , G11B5/1871 , G11B5/23 , G11B5/4886 , G11B2005/0029
摘要： A magnetic field distribution of a recording head is made linear so that a curvature of the magnetic-transition pattern in recording bit cells can be corrected. In a SPT head having a main pole 1 and an auxiliary pole 3, a magnetic layer 32 is disposed on a trailing side of the main pole. The magnetic layer is provided with a protruding portion 32a protruding towards the main pole. A width Nw of a side of the protruding portion opposite the main pole of the protruding portion is made smaller than a width Tww of the main pole on the trailing side.
摘要翻译：记录头的磁场分布是线性的，从而可以校正记录位单元中的磁转变图案的曲率。在具有主极1和辅助极3的SPT头中，在主极的后侧设置有磁性层32。磁性层设置有朝向主极突出的突出部分32a。突出部分的与突出部分的主极相对的一侧的宽度Nw被制成小于在后侧的主极的宽度Tww。

10. 发明授权

US06995949B2 Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same 失效
标题翻译：用于垂直记录的磁头和使用该磁头的磁记录盘装置
公开(公告)号：US06995949B2
公开(公告)日：2006-02-07
申请号：US11116301
申请日：2005-04-28
申请人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
发明人： Atsushi Nakamura , Masafumi Mochizuki , Tomohiro Okada , Kimitoshi Etoh , Isao Nunokawa , Yoshiaki Kawato
IPC分类号： G11B5/187
CPC分类号： G11B5/1871 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/3146
摘要： A magnetic head includes a main pole having a first portion with a length (W1) in a cross-track direction which continuously increases from a leading edge side to a trailing edge side, a second portion formed on a trailing edge side of the first portion, and a third portion formed on a trailing edge side of the second portion. A length (W2) in the cross-track direction of a boundary line between the second portion and the third portion is longer than W1, and a length (W3) in the cross-track direction of a trailing edge of a third portion is substantially equal to W2.
摘要翻译：磁头包括主极，该主极具有在从前缘侧到后缘侧连续增大的横向方向上的长度（W 1）的第一部分，形成在第一部分的后缘侧的第二部分部分，以及形成在第二部分的后缘侧上的第三部分。在第二部分和第三部分之间的边界线的横向方向上的长度（W 2）比W 1长，并且第三部分的后缘的横向方向上的长度（W 3）部分基本上等于W 2。

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