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. 发明专利

JP2006155867A Perpendicular magnetic recording head and magnetic recording device 有权
标题翻译：全能磁记录头和磁记录装置
公开(公告)号：JP2006155867A
公开(公告)日：2006-06-15
申请号：JP2005315218
申请日：2005-10-28
申请人： Shinka Jitsugyo Kk , Tdk Corp , Tdk株式会社 , 新科實業有限公司SAE Magnetics(H.K.)Ltd.
发明人： MATONO NAOTO , WATABE YUICHI
IPC分类号： G11B5/31
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/1871 , G11B5/312
摘要： PROBLEM TO BE SOLVED: To provide a perpendicular magnetic recording head, which prevents unintended erasure of information in non-recording period, by adjusting magnetic domain structures in a magnetic pole layer. SOLUTION: A main pole layer 10 is constituted so as to include a tip portion 10A having a width W1 defining a recorded track width on a recording medium, and a length L1, a middle portion 10B having a width gradually widening from the width W1 to a width W2 (W2>W1) wider than the width W1, and a length L2, and a back end portion 10C having a width W3 (W3>W2) wider than the width W2, and a length L3. When a ratio W3/(L1+L2+L3) is set so as to fill a relation of W3/(L1+L2+L3)≥1.0, the magnetic domain structures of the main pole layer 10 are adjusted so that it becomes hard to leak unnecessary magnetic flux in non-recording period, based on the magnetic anisotropy by shape of the main pole layer 10. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种垂直磁记录头，其通过调节磁极层中的磁畴结构来防止在非记录周期中的意外擦除信息。解决方案：主极层10被构造成包括具有在记录介质上限定记录的轨道宽度的宽度W1的前端部分10A，以及具有从宽度W1宽于宽度W1宽的宽度W2（W2> W1），长度L2，宽度W3宽（W3> W2）宽度W2的后端部10C和长度L3。当设定比例W3 /（L1 + L2 + L3）以填补W3 /（L1 + L2 + L3）≥1.0的关系时，主极层10的磁畴结构被调整为变硬基于主极层10的形状的磁各向异性，在非记录期间泄漏不必要的磁通量。（C）2006，JPO＆NCIPI

2. 发明专利

JP3530068B2 Thin film magnetic write head and a method of manufacturing the same 有权
公开(公告)号：JP3530068B2
公开(公告)日：2004-05-24
申请号：JP11593799
申请日：1999-04-23
申请人：富士通株式会社
发明人：周治西田 , 実長谷川
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/312 , G11B5/313 , G11B5/3133 , G11B5/3143 , G11B5/3967 , G11B2005/3996

3. 发明专利

JP2004127421A Thin film magnetic head, magnetic head device, and magnetic recording and reproducing device 有权
公开(公告)号：JP2004127421A
公开(公告)日：2004-04-22
申请号：JP2002289953
申请日：2002-10-02
申请人： Tdk Corp , Tdk株式会社
发明人： YAMANAKA NOBORU
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/312 , G11B5/313 , G11B5/3153 , G11B5/3967 , G11B2005/3996
摘要： PROBLEM TO BE SOLVED: To provide a thin film magnetic head adaptable to high density recording, in which recording bleeding can be avoided by suppressing side fringing even in a narrow track area.
SOLUTION: A first magnetic film 41 has a first pole piece 413 and a second magnetic film 45 has a second pole piece 451. A gap film 42 is arranged between the first pole piece 413 and the second pole piece 451. The first and second magnetic films 41, 45 are combined magnetically at a junction part of a backward side on the basis of the first and second pole pieces 413, 451. A coil film 43 encloses the junction part 47 in the shape of a whirlpool. A third magnetic film 48 is arranged at both side parts of the first pole piece 413 and the second pole piece 451 by being separated at interval.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2005243124A Magnetic head, and magnetic recording/reproducing device mounting the same 审中-公开
标题翻译：磁头及其安装的磁记录/再现装置
公开(公告)号：JP2005243124A
公开(公告)日：2005-09-08
申请号：JP2004050342
申请日：2004-02-25
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： MOCHIZUKI MASABUMI , SUZUKI KO , ETO KIMITOSHI
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/1278 , G11B5/265 , G11B5/312 , G11B5/3143 , G11B5/3967
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head which does not increase a magnetic field impressed to a reproduction element while enhancing format efficiency.
SOLUTION: In the magnetic head provided with a recording head 25 having a main magnetic pole 1 and an auxiliary magnetic pole 3 and a reproduction head 24 having the reproduction element 7 sandwiched between reproduction shields 8, 9, an auxiliary shield 30 composed of a magnetic substance is provided between the main magnetic pole and the reproduction shields or on the opposite side of the main magnetic pole centering around the reproduction shields.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在增加格式效率的同时不增加向再现元件施加的磁场的磁头。解决方案：在设置有具有主磁极1和辅助磁极3的记录头25的磁头和具有被复制元件7夹在再现屏蔽件8,9之间的再现头24之间，辅助屏蔽30组成在主磁极和再现屏蔽之间或者在围绕再现屏蔽的主磁极的相对侧上提供磁性物质。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005093029A Thin film magnetic head, its manufacturing method, and magnetic recording device 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：JP2005093029A
公开(公告)日：2005-04-07
申请号：JP2003328632
申请日：2003-09-19
申请人： Shinka Jitsugyo Kk , 新科實業有限公司SAE Magnetics(H.K.)Ltd.
发明人： MATONO NAOTO
IPC分类号： G11B5/147 , G11B5/31
CPC分类号： G11B5/312 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： PROBLEM TO BE SOLVED: To provide a thin film magnetic head capable of preventing information which is already recorded on a recording medium from being erased by suppressing unintentional write-in to adjacent tracks. SOLUTION: A main magnetic pole layer 10 is constituted so that a height H2 of an extension end face M2 in a lower main magnetic pole layer 10A which specifies an extension width part P2 becomes lower than an height H1 of an exposed face M1 in an upper main magnetic pole layer 10B (tip part 10B1) which specifies a constant width part P1. Since an area of the extension width face M2 is narrowed to an area of the exposed face M1, even when an amount of magnetic flux flowing in an inside of the lower main magnetic layers 10A becomes large when recording information, a magnetic flux flowing the inside of the lower main magnetic pole layer 10A becomes hard to be radiated unintentionally from the extension width end face M2 towards a recording medium without passing the upper magnetic pole layer 10B (the tip part 10B1) as compared with the case where the height H2 of the extension width end face M2 is equal to the height H1 of the exposed face M1. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够防止已经记录在记录介质上的信息被擦除的薄膜磁头，通过抑制对相邻轨迹的无意写入。解决方案：主磁极层10被构造成使得指定延伸宽度部分P2的下主要主磁极层10A中的延伸端面M2的高度H2变得低于暴露面M1的高度H1 在指定恒定宽度部分P1的上部主磁极层10B（尖端部分10B1）中。由于扩展宽度面M2的面积缩小到露出面M1的面积，所以即使在记录信息时下侧主磁性层10A的内部流过的磁通量变大时，也会使流过内侧的磁通与主磁极层10A的高度H2相比，下部主磁极层10A变得难以从扩展宽度端面M2向记录介质辐射，而不会通过上磁极层10B（尖端部分10B1）延伸宽度端面M2等于露出面M1的高度H1。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP3602038B2 The magnetic head and the magnetic recording and reproducing apparatus 有权
公开(公告)号：JP3602038B2
公开(公告)日：2004-12-15
申请号：JP2000227531
申请日：2000-07-24
申请人：株式会社日立グローバルストレージテクノロジーズ
发明人：洋治丸山 , 裕之星屋 , 俊一鳴海
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： B82Y10/00 , G11B5/3116 , G11B5/312 , G11B5/3967 , Y10S977/724

8. 发明专利

JPS6122412A Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：JPS6122412A
公开(公告)日：1986-01-31
申请号：JP14213184
申请日：1984-07-11
申请人： Hitachi Ltd
发明人： KUMIZAWA YUUKO , TANAKA KATSUYUKI , MIURA YOSHITSUGU
IPC分类号： G11B5/17 , G11B5/31
CPC分类号： G11B5/313 , G11B5/31 , G11B5/312
摘要： PURPOSE:To improve the performance and reliability and to improve the yield by laminating alternately plural conductor coils whose both edges are subjected to taper etching between upper and lower magnetic layers and a sufficiently thick insulating film and arranging the conductor coils to a flat part of the insulation film. CONSTITUTION:A lower magnetic substance layer 2 is formed onto a base 1, two conductor coils 51, 52 are laminated on it in a form buried to the insulation layer 6, an upper magnetic layer 4 is formed on the insulation layer 6, a thin insulation layer 3 to obtain a prescribed gap is formed to a tape slide face 9 of the insulation layer 6 to form a front gap 7 and a back gap 8 is formed to the opposite side. The insulation layer 6 consists of plural insulation films, laminated alternately with the conductor coils 51, 52, the insulation is improved respectively between the conductor coils, between the conductor coil 51 and the lower magnetic layer 2 and between the conductor coil 52 and the upper magnetic substance layer 4 so as to reduce remarkably the leaked magnetic field.
摘要翻译：目的：为了提高性能和可靠性，并通过层叠交替的两个边缘在上下磁性层之间进行锥形蚀刻的多个导体线圈和足够厚的绝缘膜交替地提高产量，并将导体线圈布置在绝缘膜。构成：在基体1上形成下部磁性物质层2，以绝缘层6埋设的形式将两个导体线圈51,52层叠在一起，在绝缘层6上形成上层磁性层4，在绝缘层6的带状滑动面9上形成具有规定间隙的绝缘层3，形成前部间隙7，在相反侧形成有后部间隙8。绝缘层6由与导体线圈51,52交替层叠的多个绝缘膜构成，导体线圈51与下部磁性层2之间以及导体线圈52与上部导体线圈52之间的绝缘性分别提高。磁性物质层4，以便显着地减少泄漏的磁场。

9. 发明专利

JPS5778613A Thin film magnetic head and its manufacture 失效
标题翻译：薄膜磁头及其制造
公开(公告)号：JPS5778613A
公开(公告)日：1982-05-17
申请号：JP15139380
申请日：1980-10-30
申请人： Canon Electronics Inc , Canon Inc
发明人： NIIMI AKIRA , TAKAGI HIROTSUGU , SAWADA TAKESHI , YONEDA HIROSHI , ABIKO SHIYUUZOU , GOTOU HIROICHI
IPC分类号： G11B5/31
CPC分类号： G11B5/3163 , G11B5/3103 , G11B5/312 , G11B5/313
摘要： PURPOSE:To reduce magnetic leakage, and to improve a magnetic conversion efficiency, by joining in one body a substrate on which a lower magnetic layer, a winding layer and other magnetic head component parts have been formed, and a protective plate on which an upper magnetic layer has been formed. CONSTITUTION:On a substrate 10 cosisting of silicon, etc., a lower magnetic layer 11 and an insulating layer 12 are formed by means of spattering and etching, etc., and also a spiral winding 13 is formed by means of vapor-deposition of a conductive material, and etching. Subsequently, an insulating layer 14 is formed, and on both end parts of this indulating layer 14, an upper magnetic layer 15 of the gap part and an upper magnetic layer 16 of the back-gap part are formed respectively. On the other hand, on a protective plate such as glass, etc., upper magnetic layers 21, 22 are formed in advance by a photoresist process. Thereafter, the substate 10 and the protective plate 17 are joined in one body through an adhesive agent, and the part of line D is ground, by which the sliding surface of a magnetic tape is formed. In this way, each comonent parts can be manufactured with a high accuracy and a distance between the upper and lower magnetic substances ca be secured sufficiently, therefore,magnetic leakage is reduced and the magnetic conversion efficiency is elevated.
摘要翻译：目的：为了减少磁泄漏并提高磁转换效率，通过将一个下部磁性层，绕组层和其他磁头部件已经形成的基板连接在一体，以及保护板磁性层已经形成。构成：在硅等的基板10上，通过溅射和蚀刻等形成下磁性层11和绝缘层12，并且还通过气相沉积形成螺旋形绕组13 导电材料和蚀刻。随后，形成绝缘层14，并且在该粘结层14的两端部分别分别形成间隙部分的上磁性层15和后间隙部分的上磁性层16。另一方面，在诸如玻璃等的保护板上，通过光致抗蚀剂工艺预先形成上磁性层21,22。然后，将基座10和保护板17通过粘合剂接合在一体内，将D线的一部分研磨，形成磁带的滑动面。以这种方式，可以高精度地制造每个共用部件，并且可以充分确保上下磁性物质之间的距离，因此磁泄漏降低，磁转换效率提高。

10. 发明专利

JP2013161514A Transducer head and method for manufacturing transducer head 有权
标题翻译：传感器头及制造传感器头的方法
公开(公告)号：JP2013161514A
公开(公告)日：2013-08-19
申请号：JP2012050331
申请日：2012-03-07
申请人： Seagate Technology Llc , シーゲイトテクノロジーエルエルシー
发明人： RADEK LOPUSNIK , MOURAD BANAKLI , KIRILL ALEXANDROVICH RIVKIN , DECLAN MACHEN , JAMES GARY WESSEL , JASON BRYCE GADBOIS
IPC分类号： G11B5/31 , G11B5/09
CPC分类号： G11B5/312 , G11B5/315
摘要： PROBLEM TO BE SOLVED: To relax erasure in a magnetic storage device and to improve performance.SOLUTION: In a method for manufacturing a transducer head 200, a control circuit is set so as to actively synchronize magnetic response of a shield with magnetic response of a writing magnetic pole 210 during operation. The control circuit is set so as to excite at least one coil wire by using currents flowing in main transducer heads 201a, 201b and a current in a determination direction during the operation. Active synchronization of the magnetic response of the shield with the magnetic response of the writing magnetic pole 210 is included. The transducer head 200 includes the writing magnetic pole 210 and the shield, and the control circuit actively synchronizes the magnetic response of the shield with the magnetic response of the writing magnetic pole 210.
摘要翻译：要解决的问题：放松磁存储装置中的擦除并提高性能。解决方案：在一种用于制造换能器头200的方法中，设置控制电路以主动地将屏蔽的磁响应与磁响应的磁响应同步在操作期间书写磁极210。控制电路被设定为通过使用在主传感器头201a，201b中流动的电流和在操作期间的确定方向上的电流来激励至少一个线圈线。包括屏蔽的磁响应与书写磁极210的磁响应的主动同步。换能器头200包括书写磁极210和屏蔽，并且控制电路主动地将屏蔽的磁响应与写入磁极210的磁响应同步。

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