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1. 发明授权

US08861134B1 Method and system for providing perpendicular magnetic recording transducers utilizing a damascene approach 有权
标题翻译：使用大马士革方法提供垂直磁记录传感器的方法和系统
公开(公告)号：US08861134B1
公开(公告)日：2014-10-14
申请号：US13905773
申请日：2013-05-30
申请人： Western Digital (Fremont), LLC
发明人： Lei Larry Zhang
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/1878 , G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49032 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method and system for providing a perpendicular magnetic recording transducer are disclosed. The method and system include providing a metallic underlayer and providing an insulator, at least a portion of which is on the metallic underlayer. The method and system also include forming a trench in the insulator. The bottom of the trench is narrower than the top of the trench and includes a portion of the metallic underlayer. The method and system also include providing a nonmagnetic seed layer that substantially covers at least the bottom and sides of the trench. The method and system also include plating a perpendicular magnetic pole material on at least a portion of the seed layer and removing a portion of the perpendicular magnetic pole material. A remaining portion of the perpendicular magnetic pole material forms a perpendicular magnetic recording pole.
摘要翻译：公开了一种提供垂直磁记录传感器的方法和系统。该方法和系统包括提供金属底层并提供绝缘体，其绝缘体的至少一部分在金属底层上。该方法和系统还包括在绝缘体中形成沟槽。沟槽的底部比沟槽的顶部窄，并且包括金属底层的一部分。该方法和系统还包括提供基本上至少覆盖沟槽的底部和侧面的非磁性种子层。该方法和系统还包括在种子层的至少一部分上电镀垂直磁极材料并去除垂直磁极材料的一部分。垂直磁极材料的剩余部分形成垂直磁记录极。

2. 发明授权

US08861133B1 Method and system for providing a perpendicular magnetic recording transducer using a low energy mill 有权
标题翻译：使用低能量磨机提供垂直磁记录传感器的方法和系统
公开(公告)号：US08861133B1
公开(公告)日：2014-10-14
申请号：US13894240
申请日：2013-05-14
申请人： Western Digital (Fremont), LLC
发明人： Weimin Si , Yunfei Li , Ying Hong
IPC分类号： G11B5/187 , G11B5/127
CPC分类号： G11B5/1272 , G11B5/1278 , G11B5/1878 , G11B5/3116 , G11B5/315 , G11B5/3163 , Y10T29/49041 , Y10T29/49046 , Y10T29/49052
摘要： A method and system for fabricating magnetic transducer are described. The method and system include providing a main pole having a bottom and a top wider than the bottom. The method and system further include performing a high energy ion mill at an angle from a normal to the top of the main pole and at a first energy. The high energy ion mill removes a portion of the top of the main pole and exposes a top bevel surface for the main pole. The method and system also include performing a low energy ion mill at second energy and a glancing angle from the top bevel surface. The glancing angle is not more than fifteen degrees. The second energy is less than the first energy. The method and system also include depositing a nonmagnetic gap.
摘要翻译：描述了用于制造磁换能器的方法和系统。该方法和系统包括提供具有底部和顶部比底部更宽的主极。所述方法和系统还包括以与主极顶部法线和第一能量成一角度地执行高能离子磨。高能离子磨机去除主极顶部的一部分并暴露主极的顶部斜面。该方法和系统还包括在第二能量下执行低能量离子磨，并从顶部斜面观察到扫掠角。扫视角度不超过十五度。第二能量小于第一能量。该方法和系统还包括沉积非磁性间隙。

3. 发明申请

US20040085672A1 Magnetic head with medium sliding surface having varied curvature and recording/reproducing apparatus 失效
标题翻译：具有中等滑动面的磁头具有不同的曲率和记录/重放装置
公开(公告)号：US20040085672A1
公开(公告)日：2004-05-06
申请号：US10601169
申请日：2003-06-20
申请人： ALPS ELECTRIC CO., LTD.
发明人： Kazuhiko Matsui , Akihiro Sato , Kyoichi Kawase
IPC分类号： G11B005/187
CPC分类号： G11B5/1878 , G11B5/0086
摘要： A magnetic head includes core blocks having a medium sliding surface formed on one surface of the core blocks, the medium sliding surface having a slender convex curved shape formed along a sliding direction of a recording medium from the upstream side of the sliding direction to the downstream side, and the medium sliding surface having a magnetic gap formed thereon, wherein the medium sliding surface is shaped along a longitudinal direction thereof like a circular arc with a radius of curvature R while being shaped along a width direction like a circular arc with a radius of curvature r, which is smaller than the radius of curvature R, so that the radius of curvature r is continuously reduced with closer distance to the downstream end of the recording medium sliding direction from a vicinity of the magnetic gap, so that by employing the above magnetic head, a long life magnetic head with small damage due to foreign material adhesion as well as small abrasion can be provided.
摘要翻译：磁头包括具有形成在芯块的一个表面上的介质滑动表面的芯块，介质滑动表面具有从滑动方向的上游侧到下游的沿着记录介质的滑动方向形成的细长的凸形弯曲形状并且介质滑动面具有形成在其上的磁隙，其中介质滑动表面沿着其纵向方向成像为具有曲率半径R的圆弧，同时沿着具有半径的圆弧的宽度方向成形的曲率半径r比曲率半径R短，从而使距离磁记录介质滑动方向的下游端更靠近距离的曲率半径r连续地减小，从而通过采用磁头以上，可以提供由于异物附着而造成的损伤小且磨损小的长寿命磁头。

4. 发明申请

US20010050829A1 MAGNETIC RECORDING AND REPRODUCING SYSTEM INCLUDING A RING HEAD OF MATERIALS HAVING DIFFERENT SATURATION FLUX DENSITIES 无效
标题翻译：磁记录和复制系统，包括具有不同饱和度通量的材料的环形头
公开(公告)号：US20010050829A1
公开(公告)日：2001-12-13
申请号：US08343876
申请日：1994-11-17
发明人： OSAMU KITAKAMI , HIROSHI HIRANO
IPC分类号： G11B005/235
CPC分类号： G11B5/65 , G11B5/00 , G11B5/00813 , G11B5/1878 , G11B5/488 , G11B5/706 , G11B5/74 , G11B5/78 , G11B2005/0002
摘要： In carrying out recording on a magnetic recording medium having substantially uniaxial oblique magnetic anisotropy to the surface of the medium, magnetic characteristics can be remarkably improved by running a ring head having a high saturation magnetic flux density material only on one side of gap portion in normal direction in respect to the magnetic recording medium with a gap edge of the high saturation magnetic flux density material side being ahead, thereby to carry out recording and/or reproducing.
摘要翻译：在对介质表面实质上具有单轴倾斜磁各向异性的磁记录介质进行记录时，通过仅在正常的间隙部分的一侧运行具有高饱和磁通密度材料的环形头，可以显着提高磁特性相对于具有高饱和磁通密度材料侧的间隙边缘的磁记录介质的方向，从而进行记录和/或再现。

5. 发明申请

US20010042300A1 Magnetic head and manufacturing method therefor 审中-公开
标题翻译：磁头及其制造方法
公开(公告)号：US20010042300A1
公开(公告)日：2001-11-22
申请号：US09879781
申请日：2001-06-12
发明人： Seiichi Ogata , Tadashi Saito , Teruo Inaguma , Shinji Takahashi , Yoshihiko Inoue
IPC分类号： G11B005/127 , H04R031/00
CPC分类号： G11B5/1276 , G11B5/1878 , G11B5/314 , G11B5/53 , Y10T29/49032 , Y10T29/49046 , Y10T29/49048 , Y10T29/49055
摘要： A magnetic head having optimum recording/reproducing characteristics and a method for producing the magnetic head. A pair of magnetic core halves 2, 3, each having a substrate 4 and a thin magnetic metal film 6 formed obliquely on it, are bonded together via a non-magnetic material C for defining a magnetic gap. A portion of the substrate faces a junction surface 8 of the magnetic core halves 2, 3. The substrate portion is arranged for facing an end face of the magnetic meta film 6 of the opposite side magnetic core half facing the junction surface 8.
摘要翻译：具有最佳记录/再现特性的磁头及其制造方法。一对磁芯半部2,3分别通过非磁性材料C接合在一起，每个磁芯半体2,3具有基板4和在其上倾斜形成的薄磁性金属膜6，以限定磁隙。衬底的一部分面对磁芯半部2,3的接合表面8.衬底部分被布置为面对面对接合面8的相对侧磁芯半部的磁性超薄膜6的端面。

6. 发明授权

US06288870B1 Self-aligned metal film core multi-channel recording head for tape drives 失效
标题翻译：用于磁带驱动器的自对准金属膜芯多通道记录头
公开(公告)号：US06288870B1
公开(公告)日：2001-09-11
申请号：US09006281
申请日：1998-01-13
申请人： George A. Saliba
发明人： George A. Saliba
IPC分类号： G11B529
CPC分类号： G11B5/21 , G11B5/1475 , G11B5/1871 , G11B5/1878 , G11B5/29 , G11B5/295 , G11B5/3163 , G11B5/4893
摘要： A self-aligned multi-channel tape head structure has a non-magnetic ceramic substrate defining an interior longitudinal channel and a plurality of head regions. At least one head leg at each region defines lateral openings to the interior longitudinal channel. Each head region has a thin-film metal magnetic core deposited on an inside wall surface of the ceramic substrate and a magnetic gap in a longitudinal face of the ceramic substrate. A coil of wire is wound around each head leg to provide a magnetic transducer head at each head region.
摘要翻译：自对准多通道磁带头结构具有限定内部纵向通道和多个磁头区域的非磁性陶瓷基板。每个区域的至少一个头部腿限定到内部纵向通道的侧向开口。每个头部区域具有沉积在陶瓷基板的内壁表面上的薄膜金属磁芯和陶瓷基板的纵向表面中的磁隙。线圈缠绕在每个头部腿上，以在每个头部区域提供磁性换能器头。

7. 发明授权

US5943762A Method and manufacturing a hybrid type magnetic head slider using a thin film coil 失效
标题翻译：使用薄膜线圈制造混合型磁头滑块的方法
公开(公告)号：US5943762A
公开(公告)日：1999-08-31
申请号：US951461
申请日：1997-10-16
申请人： Akinobu Sano
发明人： Akinobu Sano
IPC分类号： G11B5/31 , G11B5/105 , G11B5/127 , G11B5/17 , G11B5/187 , G11B5/60
CPC分类号： G11B5/1272 , G11B5/105 , G11B5/17 , G11B5/1878 , G11B5/6011 , Y10T29/49041 , Y10T29/49048 , Y10T29/49057
摘要： A method of manufacturing a hybrid type magnetic head slider using a thin film coil in which a number of cores can be manufactured in the sane condition, and improvement and uniformity in yield and performance can be expected. A conductor pattern forming a plurality of thin film coils (2b) and a magnetic material (magnetic cores 2a) passing in the thin film coils are formed on a nonmagnetic base (1) by means of spattering or the like, and grooves (15) for bonding a plurality of ferrite made head cores (13) are formed on a different nonmagnetic base (14). The ferrite made head cores, which are bonded by glass thin films with a fixed gap, are bonded after polished into the outer dimension fitted to the grooves. A thin film coil stick (4) having the thin film coils formed thereon and a head core base (16) having the head cores bonded thereto are combined and bonded together to form a magnetic head slider bond bar (20), which is then cut and subjected to a polishing, whereby a magnetic head slider is completed reducing manual work.
摘要翻译：可以预期使用其中可以在正常状态下制造多个芯的薄膜线圈制造混合型磁头滑块的方法，并且可以预期产量和性能的提高和均匀性。通过溅射等在非磁性基体（1）上形成形成多个薄膜线圈（2b）的导体图案和通过薄膜线圈的磁性材料（磁芯2a），以及凹槽（15）用于接合多个铁氧体磁芯（13）形成在不同的非磁性基座（14）上。由固定间隙的玻璃薄膜结合的铁氧体制成的芯体芯被研磨后嵌入到槽的外形尺寸上。在其上形成有薄膜线圈的薄膜线圈棒（4）和具有与其结合的头芯的头芯基座（16）组合并结合在一起以形成磁头滑块接合棒（20），然后将其切割并进行研磨，从而完成减少手动加工的磁头滑块。

8. 发明授权

US5943195A Magnetic head apparatus and magnetic recording apparatus using thereof 失效
标题翻译：磁头装置及其使用的磁记录装置
公开(公告)号：US5943195A
公开(公告)日：1999-08-24
申请号：US826238
申请日：1997-03-27
申请人： Akinaga Natsui , Norimoto Nouchi
发明人： Akinaga Natsui , Norimoto Nouchi
IPC分类号： G11B5/105 , G11B5/127 , G11B5/187 , G11B5/40 , G11B5/53 , G11B33/14 , G11B5/235
CPC分类号： G11B5/105 , G11B5/1276 , G11B5/1878 , G11B5/40 , G11B5/53 , G11B33/14
摘要： A metal-in-gap type magnetic head apparatus in which a pair of magnetic core half bodies, comprising a metallic magnetic film containing Fe as a main component on at least one magnetic core half body, are joined. In the above mentioned structure, at least a part of the surface of a supporting base of the magnetic head comprises a material having a lower standard electrode potential than the metallic magnetic film and thereby the metallic magnetic film has a high saturation flux density. Moreover, a magnetic head apparatus and magnetic recording apparatus of the present invention can have a high reliability even in the strong corrosive environment.
摘要翻译：一种金属间隙型磁头装置，其中包括在至少一个磁芯半体上包含以Fe为主要成分的金属磁性膜的一对磁芯半体。在上述结构中，磁头的支撑基底的表面的至少一部分包括具有比金属磁性膜低的标准电极电位的材料，从而金属磁性膜具有高的饱和磁通密度。此外，即使在强腐蚀性环境下，本发明的磁头装置和磁记录装置也可以具有高的可靠性。

9. 发明授权

US5936815A Magnetic head 失效
标题翻译：磁头
公开(公告)号：US5936815A
公开(公告)日：1999-08-10
申请号：US931743
申请日：1997-09-16
申请人： Seiji Kumagai , Junichi Honda , Norikatsu Fujisawa , Kyu Kanno
发明人： Seiji Kumagai , Junichi Honda , Norikatsu Fujisawa , Kyu Kanno
IPC分类号： G11B5/31 , G11B5/127 , G11B5/187 , G11B5/23 , G11B5/147
CPC分类号： G11B5/1276 , G11B5/1878 , G11B5/127 , G11B5/1272
摘要： A thin film type magnetic head that electromagnetic conversion efficiency is improved by making gradually magnetic resistance larger with approaching to a magnetic gap can be provided. There is disclosed a magnetic head including a pair of magnetic core half members having nonmagnetic substrates and magnetic metal films formed on the nonmagnetic substrates and a coil formed at a concave part by a thin film forming process, the pair of magnetic core half members being jointed to each other opposite to each other through a magnetic gap formed between the respective magnetic metal films, the concave part formed on the surface formed by joining at least one of the magnetic metal films and the other magnetic metal film, wherein assistant cores consisting of magnetic materials are joined on the side of the surface by joining a pair of nonmagnetic substrates and the magnetic metal films are formed connected with the assistant cores.
摘要翻译：可以提供通过使接近磁隙逐渐变大的磁阻来提高电磁转换效率的薄膜型磁头。公开了一种磁头，其包括具有非磁性基板的一对磁芯半部件和形成在非磁性基板上的磁性金属膜，以及通过薄膜形成工艺在凹部形成的线圈，所述一对磁芯半体连接通过形成在各个磁性金属膜之间的磁隙彼此相对，通过接合至少一个磁性金属膜和另一个磁性金属膜形成的表面上形成的凹部，其中由磁性金属膜组成的辅助芯材料通过连接一对非磁性基底而在表面的一侧接合，并且形成与辅助芯相连接的磁性金属膜。

10. 发明授权

US5912783A Magnetic recording and reproducing apparatus having ring-type magnetic head with metallic soft magnetic films of differing thicknesses 失效
标题翻译：具有环形磁头的磁记录和再现装置，其具有不同厚度的金属软磁膜
公开(公告)号：US5912783A
公开(公告)日：1999-06-15
申请号：US762958
申请日：1996-12-10
申请人： Tatsuaki Ishida , Ryuji Sugita , Noriyasu Echigo , Hiroyuki Hasegawa
发明人： Tatsuaki Ishida , Ryuji Sugita , Noriyasu Echigo , Hiroyuki Hasegawa
IPC分类号： G11B5/00 , G11B5/008 , G11B5/012 , G11B5/02 , G11B5/127 , G11B5/187 , G11B5/21 , G11B5/23 , G11B5/31
CPC分类号： G11B5/1878 , G11B5/00 , G11B5/008 , G11B5/00813 , G11B5/0086 , G11B5/012 , G11B5/02 , G11B5/1274 , G11B5/21 , G11B2005/0029 , G11B5/1278
摘要： In a magnetic recording and reproduction apparatus wherein signals are recorded with a ring-type magnetic head to a magnetic recording medium having axis of easy magnetization oblique with respect to a film normal of a magnetic layer of the medium A recording magnetic field generated by the magnetic head is asymmetric with respect to a center line of a gap of the magnetic circuit, and the recording magnetic field in the magnetic layer around a leading edge of the magnetic head is inclined at the same side as the axis of easy magnetization in the magnetic field in a normal plane of the magnetic layer including a direction of relative movement of the magnetic head to the magnetic recording medium when signals are recorded to the medium. Thus, signals can be recorded at a high density. Various types of magnetic head for generating asymmetric magnetic field are provided.
摘要翻译：在磁记录和再现装置中，其中信号用环形磁头记录到具有相对于介质A的磁性层的膜法线倾斜的易磁化轴的磁记录介质的磁记录介质的磁记录磁场头部相对于磁路的间隙的中心线是不对称的，并且磁头前缘周围的磁性层中的记录磁场在与磁场中容易磁化的轴线相同的一侧倾斜在磁性层的正常平面中包括当信号被记录到介质时磁头与磁记录介质的相对运动的方向。因此，可以以高密度记录信号。提供了用于产生非对称磁场的各种类型的磁头。

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