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1. 发明公开

EP1852856A3 Trailing shield design for reducing wide area track erasure (water) in a perpendicular recording system 审中-公开
标题翻译：防风罩用于在垂直记录系统中降低长距离道擦除（水）
公开(公告)号：EP1852856A3
公开(公告)日：2008-07-09
申请号：EP07250690.0
申请日：2007-02-20
申请人： Hitachi Global Storage Technologies Netherlands B.V.
发明人： Hsiao, Wen-Chien David , Hsu, Yimin , Nikitin, Vladimir
IPC分类号： G11B5/31 , G11B5/127
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/3116
摘要： A magnetic structure for use in a magnetic head for avoiding wide angle track erasure and other forms of adjacent track interference. The magnetic structure includes a trailing shield having a specially configured back edge opposite the air bearing surface ABS. The magnetic shield has a shallow substantially constant throat height at a center portion. Then, the back edge of the shield tapers back away from the ABS in first and second intermediate portion located at either side of the center portion. These intermediate portions lead to first and second outer portions that have substantially constant throat heights that are larger than the throat height at the center region. The throat height at each of the laterally outer portions can be 1.5 to 5 times the throat height of the center portion. This configuration, chokes off stray fields that might be picked up by the outer portions of the shield preventing excessive magnetic flux from reaching the central portion of the shield where it might affect writing.

2. 发明公开

EP1653450A3 Double notched shield and pole structure for stray field reduction in a magnetic head 有权
标题翻译：双重屏蔽和缺口磁极结构用于减少磁头的杂散场
公开(公告)号：EP1653450A3
公开(公告)日：2007-09-19
申请号：EP05254252.9
申请日：2005-07-06
申请人： Hitachi Global Storage Technologies Netherlands B.V.
发明人： Kuok, San Ho , Yimin, Hsu , Ching, Hwa Tsang
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/3146
摘要： A double notched magnetic structure for use in a magnetic head for avoiding stray field writing. The structure could be a magnetic shield, magnetic pole of a write head or some other magnetic structure used in a magnetic head of a magnetic recording system, and has notches formed at both the front end (adjacent to the ABS) and at the back end (away from the ABS). The notches at the front end form a forward protruding portions that performs the necessary function of the structure, such as magnetic shielding, and has laterally extending recessed portions (recessed by the front notches) that move the flux focal points of the structure away from the ABS to avoid stray field writing. The back notches form a backward extending portion that affects the geometry of the structure to prevent the focusing of magnetic flux caused by stray magnetic fields having a component perpendicular to the ABS.

3. 发明公开

EP1376543A2 Flux guide in the bearing surface of a magnetoresistive head 有权
标题翻译：河头的磁阻磁头的胎面
公开(公告)号：EP1376543A2
公开(公告)日：2004-01-02
申请号：EP03253992.6
申请日：2003-06-25
申请人： QUANTUM CORPORATION
发明人： Wu, Andrew L.
IPC分类号： G11B5/39 , G11B5/31 , H01L43/00 , H01F10/32
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3133 , G11B5/3146 , G11B5/3916 , G11B5/40 , G11B5/4893 , G11B2005/3996
摘要： The magnetoresistive sensor (44) has a tape bearing surface, and includes a magnetoresistive sensing element and a flux guide (45) disposed on a surface of the magnetoresistive sensing clement to form a portion of the tape bearing surface.

4. 发明公开

EP1347442A1 Recording magnetic head and magnetic storage device using the same 有权
标题翻译：说唱歌手Magnetkopf und und diesen verwendende magnetische Speicheranordnung
公开(公告)号：EP1347442A1
公开(公告)日：2003-09-24
申请号：EP02257653.2
申请日：2002-11-05
申请人： FUJITSU LIMITED
发明人： Kutsuzawa, Tomoko, c/o Fujitsu Limited , Tagawa, Ikuya, c/o Fujitsu Limited
IPC分类号： G11B5/187
CPC分类号： G11B5/313 , G11B5/3116 , G11B5/3146
摘要： According to an embodiment of the present invention, a recording magnetic head suitable for increasing a surface recording density, having a large recording magnetic field and a small recording blur, is provided. A lower magnetic pole layer (12) and an upper magnetic pole layer (13) opposing the lower magnetic pole layer are formed, and a lower sub magnetic pole (11) composed of a plurality of magnetic layers is formed along a medium facing face (21) on the lower magnetic pole layer. The lengths, in a direction perpendicular to the medium facing face, of the respective magnetic layers forming the lower sub magnetic pole, increase as the distance between the respective magnetic layers and the upper magnetic pole layer increases.
摘要翻译：根据本发明的实施例，提供了一种适于增加具有大的记录磁场和小的记录模糊的表面记录密度的记录磁头。形成与下磁极层相对的下磁极层（12）和上磁极层（13），沿着介质面对面形成由多个磁性层构成的下部子磁极（11） 21）在下磁极层上。形成下副磁极的各个磁性层的垂直于介质面对面的方向的长度随着各个磁性层和上部磁极层之间的距离增加而增加。

5. 发明公开

EP0881627A3 Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：EP0881627A3
公开(公告)日：1999-09-22
申请号：EP98302930.7
申请日：1998-04-16
申请人： TDK Corporation
发明人： Terunuma, Koichi , Mino, Tetsuya , Uno, Yasufumi , Matsukuma, Koji
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3116 , G11B5/3146
摘要： A first pole tip (212) at a write element (2) is provided projecting above a first yoke (211). a second pole tip (222) is adhered onto a gap film (23) that is adhered onto the first pole tip (212). The front end portion of a second yoke (221) is laminated on the second pole tip (222). At least either the first pole tip (212) or the second pole tip (222) is constituted of a material having a higher saturation magnetic flux density than that of permalloy. At least either the first yoke (211) or the second yoke (221) is constituted of a material having a higher resistivity than that of permalloy.
摘要翻译：写入元件（2）处的第一极尖（212）设置在第一磁轭（211）的上方。第二极尖（222）粘附到粘附到第一极尖（212）上的间隙膜（23）上。第二磁轭（221）的前端部分层叠在第二磁极尖端（222）上。第一极尖（212）或第二极尖（222）中的至少一个由具有比坡莫合金更高的饱和磁通量密度的材料构成。第一磁轭（211）或第二磁轭（221）中的至少一个由具有比坡莫合金高的电阻率的材料构成。

6. 发明公开

EP0698878A1 Thin film magnetic head and method of fabricating the same 失效
标题翻译： Dünnfilmmagnetkopfund Verfahren zu seiner Herstellung
公开(公告)号：EP0698878A1
公开(公告)日：1996-02-28
申请号：EP95305980.5
申请日：1995-08-25
申请人： AIWA CO., LTD.
发明人： Malhotra, Arun , Ang, Jane , Gray, G. Robert , Watterston, James
IPC分类号： G11B5/31 , G11B5/127 , G11B5/33
CPC分类号： G11B5/3183 , G11B5/232 , G11B5/235 , G11B5/3103 , G11B5/3106 , G11B5/3113 , G11B5/3116 , G11B5/313 , G11B5/3133 , G11B5/3146 , G11B5/3163 , G11B5/488 , G11B5/4893
摘要： A thin film magnetic head is fabricated on a substrate (105) by depositing a seed layer (115) on the substrate. This seed layer is advantageously used as a common seed for a plurality of magnetic head related structures which are built-up on the substrate. A lower magnetic layer (150) is plated on the substrate in an opening provided in an insulative layer (135) which is deposited on the substrate. The aforementioned seed layer is used as the seed for this lower magnetic layer (150). A plurality of magnetic layers are plated at one end of the lower magnetic layer (150) to build-up and form a first side pole (265) by using the above seed layer as a seed. Another plurality of magnetic layers are plated at the other end of the lower magnetic layer to build-up and form a second side pole (270) by using the same seed layer as a seed. The first and second side poles (265, 270) thus formed include upper and lower ends, the lower ends being plated to the ends of the lower magnetic layer (150). A first upper pole (345) is plated to the upper end of the first side pole (265). The first upper pole includes a gap end (345A) facing the second side pole (270). A gap region (360) of nonmagnetic material is deposited adjacent the gap end of the first upper pole (345). A second upper pole (365) is plated to the upper end of the second side pole (270) and includes a gap end (365A) adjacent the gap region.
摘要翻译：通过在衬底上沉积晶种层（115），在衬底（105）上制造薄膜磁头。该种子层有利地用作在基底上积累的多个磁头相关结构的常见种子。下部磁性层（150）在设置在沉积在基板上的绝缘层（135）中的开口中的基板上镀覆。上述种子层用作该下磁性层（150）的种子。多个磁性层通过使用上述种子层作为种子而在下部磁性层（150）的一端被电镀以形成第一侧极（265）。另外多个磁性层在下部磁性层的另一端被电镀，以通过使用与种子相同的种子层来形成第二侧面极（270）。由此形成的第一和第二侧极（265,270）包括上端和下端，下端被电镀到下磁性层（150）的端部。第一上极（345）被电镀到第一侧极（265）的上端。第一上极包括面向第二侧极（270）的间隙端（345A）。邻近第一上极（345）的间隙端部沉积非磁性材料的间隙区域（360）。第二上极（365）被电镀到第二侧极（270）的上端，并且包括与间隙区相邻的间隙端（365A）。

7. 发明公开

EP0492848A2 Transducer head and method of making same 失效
标题翻译： Wandlerkopf und Herstellungsverfahren。
公开(公告)号：EP0492848A2
公开(公告)日：1992-07-01
申请号：EP91311293.4
申请日：1991-12-04
申请人： International Business Machines Corporation
发明人： Denison, Edward Virgil , Kahwaty, Vincent Noel , Stern, Gustave Christian , Stevin, Gerald , Zammit, Robert Paul
IPC分类号： G11B5/265 , G11B5/31 , G11B5/48
CPC分类号： G11B5/3903 , G11B5/245 , G11B5/3103 , G11B5/3133 , G11B5/3146 , G11B5/3967 , G11B5/4893 , Y10T29/49043 , Y10T29/49064
摘要： In a magnetic recording system tape is transported bi-directionally across the interleaved head. The interleaved head includes two modules, each module having a plurality of alternate read and write transducer gaps spaced apart along a single gap line transverse to the movement of the magnetic tape. The two modules are placed together so that the write gaps of one module are aligned with the read gaps of the other module.
Each module is formed on a nickel-zinc ferrite substrate by deposition of magneto-resistive material to form read transducer elements 69 and deposition of conductor material to form read conductors 74, 76 and 78 and write coils 80. A nickel zinc ferrite closure piece is secured to the substrate to complete the module. In order to provide leveling across the write and read transducers of the module, write back gap islands 90, 92 are provided in the back gap regions 68 of the write coils made of the same material with the same thickness as the magneto resistive element and the conductors interconnecting the magneto resistive element to the read/write network of the tape drive.
摘要翻译：在磁记录系统中，磁带被双向传输穿过交织的磁头。交错的头部包括两个模块，每个模块具有沿着横向于磁带的移动的单个间隙线间隔开的多个替代的读取和写入换能器间隙。将两个模块放置在一起，使得一个模块的写入间隙与另一个模块的读取间隙对准。每个模块通过沉积磁阻材料形成在镍锌铁氧体衬底上，以形成读取换能器元件69和沉积导体材料以形成读取导体74,76和78以及写入线圈80.镍锌铁氧体封闭件是固定到基板上以完成模块。为了在模块的写和读换能器之间提供整平，写回间隙90,92设置在由与电阻元件相同厚度的相同材料制成的写入线圈的后间隙区域68中，将磁阻元件互连到磁带驱动器的读/写网络的导体。

8. 发明公开

EP2411978A4 SHIELDED PERPENDICULAR MAGNETIC RECORDING HEAD 审中-公开
标题翻译：屏蔽摆式磁头头
公开(公告)号：EP2411978A4
公开(公告)日：2012-12-12
申请号：EP10756667
申请日：2010-03-22
申请人： STANFORD RES INST INT
发明人： SECHI PAOLO G
IPC分类号： G11B5/127 , G11B5/11 , G11B5/31
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3116 , G11B5/3146

9. 发明公开

EP1944762A3 Magnetic disk device 审中-公开
标题翻译：磁盘设备
公开(公告)号：EP1944762A3
公开(公告)日：2009-05-20
申请号：EP08250003.4
申请日：2008-01-02
申请人： Hitachi Global Storage Technologies Netherlands B.V.
发明人： Masafumi, Mochizuki , Yukiya Shimizu , Shuji Nishida
IPC分类号： G11B5/012 , G11B5/127 , G11B5/855
CPC分类号： G11B5/012 , B82Y10/00 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/743 , G11B5/82 , G11B5/855
摘要： In a patterned perpendicular magnetic recording medium, to provide a magnetic head in which magnetic field to be applied to adjacent tracks can be suppressed and a recording device equipped with the magnetic head. In an embodiment of the present invention, a sum of a width PW of a main pole 1 of a magnetic head 14 and distances between right and left magnetic substances 33 on a width-directional side of tracks and the main pole 1, so-called widths of side gap lengths s_gl_1 and s_gl_2 is, in a magnetic recording medium having a soft-magnetic underlayer, made to be not more than a sum of a width w_land of a convexity or land of the soft-magnetic underlayer and widths w_groove_1 and w_groove_2 of concavities or grooves adjacent to the land on its both sides.

10. 发明公开

EP1959436A2 Magnetic head and method of manufacturing the same 审中-公开
标题翻译： Magnetischer Kopf und Herstellungsverfahrendafür
公开(公告)号：EP1959436A2
公开(公告)日：2008-08-20
申请号：EP08250294.9
申请日：2008-01-23
申请人： Hitachi Global Storage Technologies Netherlands B.V.
发明人： Maruyama, Yoji , Iwakura, Tadayuki , Etoh, Kimitoshi , Shiina, Hiromi , Kudo, Kazue
IPC分类号： G11B5/31 , G11B5/127 , G11B5/11
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： To suppress broadening of a write field of a main pole of a perpendicular recording head and realize high-quality write operation, it is necessary to set the formation accuracy of members forming the head at an extremely high level. In the case of manufacturing perpendicular recording heads by commercially available manufacturing equipment, a manufacturing yield is low so that inexpensive heads cannot be mass-produced. A main pole 11 of a write head 200 extends to an air bearing surface 98 or a medium-facing surface and has an inverted trapezoid in cross-section. First soft magnetic films 10 called side shields are separately disposed through a nonmagnetic film 51 on both sides of the main pole 11. The air bearing surface side end of the first soft magnetic film 10 is provided to recede from the air bearing surface 98. The first soft magnetic film 10 and the main pole 11 are formed in the same layer. A second soft magnetic film 12 called a trailing shield is provided above the main pole 11 on the air bearing surface side via a nonmagnetic film 14.
摘要翻译：为了抑制垂直记录头的主极的写入场的加宽并且实现高质量的写入操作，需要将形成头部的部件的成形精度设定在非常高的水平。在通过商业制造设备制造垂直记录头的情况下，制造成品率低，因此不能批量生产便宜的头。写头200的主极11延伸到空气轴承表面98或中等的表面，并且具有横截面的倒梯形。第一软磁膜10称为侧屏，分别通过主磁极11两侧的非磁性膜51设置。第一软磁膜10的空气轴承表面侧端部设置成从空气轴承表面98后退。第一软磁膜10和主极11形成在同一层中。通过非磁性膜14，在空气轴承表面侧的主极11的上方设置称为后挡板的第二软磁膜12。

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