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1.发明授权公开(公告)号：US06638596B1
公开(公告)日：2003-10-28
申请号：US09599498
申请日：2000-06-22
IPC分类号： G11B531
CPC分类号： G11B5/3109 , Y10T428/1157 , Y10T428/1171 , Y10T428/12944 , Y10T428/12951
摘要： A soft magnetic film of the invention is to improve a resistivity &rgr; while maintaining a coercive force Hc and a saturation magnetic flux density Ms in good states by adding an element X (X is one or more kinds of elements selected from O, C, N, and S). Further, a thin film magnetic head capable of coping with an increase in a recording density and an increase in a recording frequency can be provided by using the soft magnetic film in core layers.
摘要翻译： 本发明的软磁性膜是通过添加元素X（X是选自O，C，N中的一种或多种元素）来改善电阻率rho，同时保持良好状态下的矫顽力Hc和饱和磁通密度Ms ，和S）。 此外，通过使用芯层中的软磁性膜，可以提供能够应付记录密度增加和记录频率增加的薄膜磁头。
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公开(公告)号：US07288333B2
公开(公告)日：2007-10-30
申请号：US10659119
申请日：2003-09-10
CPC分类号： C25D3/562 , C25D5/18 , C25D7/001 , G11B5/3109 , G11B5/3113 , G11B5/313 , G11B5/3163 , H01F10/16 , Y10T428/115 , Y10T428/1186 , Y10T428/1193 , Y10T428/32 , Y10T428/325
摘要： A soft magnetic film of the present invention is a plated film composed of Co and Fe, and columnar crystals extending in the film thickness direction are provided. In the present invention, columnar crystals extending in the film thickness direction are provided so that an improvement in the surface roughness of the film surface and an improvement in the corrosion resistance can be achieved. Furthermore, the saturation magnetic flux density Bs can also be improved by making the crystal fine and eliminating the need for addition of the noble metal element. That is, according to a CoFe alloy of the present invention, both the corrosion resistance and the saturation magnetic flux density Bs can be improved, and specifically, the above-mentioned saturation magnetic flux density Bs can be increased to 2.35 T or more.
摘要翻译： 本发明的软磁性膜是由Co和Fe组成的镀膜，并且设置在膜厚度方向上延伸的柱状晶体。 在本发明中，提供了沿膜厚方向延伸的柱状晶体，从而可以实现膜表面的粗糙度的提高和耐腐蚀性的提高。 此外，通过使晶体细化并且不需要添加贵金属元素，也可以提高饱和磁通密度Bs。 也就是说，根据本发明的CoFe合金，可以提高耐腐蚀性和饱和磁通密度Bs，特别是上述饱和磁通密度Bs可以提高到2.35T以上。
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公开(公告)号：US20080266720A1
公开(公告)日：2008-10-30
申请号：US11872201
申请日：2007-10-15
申请人： Hisayuki Yazawa , Mitsuo Kawasaki
发明人： Hisayuki Yazawa , Mitsuo Kawasaki
IPC分类号： G11B5/33
CPC分类号： G11B5/3163 , G11B5/1278
摘要： A thin film magnetic head is disclosed having a non-magnetic layer that is formed of a NiPRe (nickel-phosphorus-rhenium) alloy, which makes it possible to optimize the composition ratios of elements Ni, P, and Re, to obtain the non-magnetic layer having a smooth surface, and to prevent concave portions from being formed in both side surfaces of the non-magnetic layer during a milling process, thereby improving recording characteristics.The composition ratio of a NiPRe alloy forming the non-magnetic layer is set within the range surrounded by boundary lines A to D in a ternary diagram, which makes it possible to form a non-magnetic layer having a smooth surface and uniformly form the magnetic layer on the non-magnetic layer. In addition, since the NiPRe alloy having the composition ratio has a low milling rate, it is possible to prevent concave portions from being formed in both side surfaces of the magnetic layer that is formed on or underneath the non-magnetic layer. As a result, it is possible to accurately regulate a recording track width to a narrow width and thus improve recording characteristics.
摘要翻译： 公开了一种薄膜磁头，其具有由NiPRe（镍 - 铼 - 铼）合金形成的非磁性层，这使得可以优化元素Ni，P和Re的组成比，以获得非磁性层， - 具有光滑表面的磁性层，并且在研磨过程中防止在非磁性层的两个侧表面中形成凹部，从而改善记录特性。 形成非磁性层的NiPRe合金的组成比设定在由边界线A至D包围的范围内，这使得可以形成具有光滑表面并均匀形成磁性的非磁性层 层在非磁性层上。 此外，由于具有组成比的NiPRe合金具有低的研磨速度，因此可以防止在形成在非磁性层上或下面的磁性层的两个侧表面中形成凹部。 结果，可以将记录磁道宽度精确地调节到窄的宽度，从而提高记录特性。
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公开(公告)号：US08418557B2
公开(公告)日：2013-04-16
申请号：US12841748
申请日：2010-07-22
IPC分类号： G01P15/125
CPC分类号： G01P15/125 , B81B3/0078 , B81B2201/0235 , B81B2203/053 , G01P15/0802 , G01P2015/0831
摘要： A physical quantity sensor includes a support substrate, anchor portions fixed to a top surface of the support substrate, a movable portion positioned above the support substrate and supported by the anchor portions with support portions provided therebetween such that the movable portion is movable in a height direction, and detection portions for detecting a displacement of the movable portion. The support portions include beam portions provided between the movable portion and the anchor portions such that spring portions are provided between the beam portions and each of the movable portion and the anchor portions, the beam portions having a rigidity higher than a rigidity of the spring portions. The movable portion translates in the height direction owing to twisting of the spring portions and displacements in the height direction of distal ends of the beam portions, the movable portion being supported at the distal end.
摘要翻译： 物理量传感器包括支撑基板，固定到支撑基板的顶表面的锚定部分，位于支撑基板上方并由锚定部分支撑的可移动部分，其中支撑部分设置在支撑基板之间，使得可移动部分能够在高度 方向和检测部分，用于检测可动部分的位移。 支撑部分包括设置在可动部分和锚固部分之间的梁部分，使得弹簧部分设置在梁部分与可动部分和锚固部分中的每一个之间，梁部分的刚度高于弹簧部分的刚度 。 可移动部分由于弹簧部分的扭转和梁部分的远端的高度方向上的位移而在高度方向上平移，可移动部分被支撑在远端。
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公开(公告)号：US07990654B2
公开(公告)日：2011-08-02
申请号：US12038294
申请日：2008-02-27
申请人： Hisayuki Yazawa , Takahiro Taoka , Hiroshi Kameda
发明人： Hisayuki Yazawa , Takahiro Taoka , Hiroshi Kameda
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/3116
摘要： A perpendicular magnetic recording head includes a main magnetic pole layer and an auxiliary yoke layer that overlaps the main magnetic pole layer as viewed in a top view and is magnetically coupled to the main magnetic pole layer. The main magnetic pole layer includes a pole straight part exposed to an opposing surface opposite a recording medium, and a flared part that extends from the pole straight part in a height direction, the flared part broadening in a track width direction as the flared part extends in the height direction. The auxiliary yoke layer includes a flared part that extends from the recording medium-opposing surface, the flared part broadening in the track width direction as the flared part extends in the height direction. The flared part of the auxiliary yoke layer is disposed at a position located closer to the rear side in the height direction than the flared part of the main magnetic pole layer. The flared part of the main magnetic pole layer is formed at a flare angle greater than a flare angle of the auxiliary yoke layer.
摘要翻译： 垂直磁记录头包括主磁极层和与主磁极层重叠的辅助磁轭层，如顶视图所示，并且磁耦合到主磁极层。 主磁极层包括暴露于与记录介质相对的相对表面的极直部分，以及在高度方向上从极直部分延伸的扩张部分，当扩张部延伸时，扩张部分在轨道宽度方向上变宽 在高度方向。 辅助轭层包括从记录介质相对表面延伸的扩张部分，当扩张部分在高度方向上延伸时，扩张部分在轨道宽度方向上变宽。 辅助磁轭层的扩口部分位于比主磁极层的扩张部分更靠近高度方向后侧的位置。 主磁极层的扩口部形成为大于辅助磁轭层的扩口角的喇叭角。
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6.发明授权Perpendicular magnetic recording head having spacer layer in predetermined portion 有权具有预定部分的间隔层的垂直磁记录头公开(公告)号：US07593185B2
公开(公告)日：2009-09-22
申请号：US11485815
申请日：2006-07-13
申请人： Hisayuki Yazawa
发明人： Hisayuki Yazawa
IPC分类号： G11B5/33
CPC分类号： G11B5/1278 , G11B5/3143
摘要： An auxiliary yoke layer is provided on a main magnetic pole layer with a spacer layer provided therebetween. A rear end of the auxiliary yoke layer and a rear end of a return yoke layer are connected to each other. At all times except during recording, the presence of the spacer layer breaks the magnetic connection between the main magnetic pole layer and the auxiliary yoke layer. On the other hand, a recording magnetic field having a magnetic field strength significantly higher than that of a disturbance magnetic field reaches the main magnetic pole layer through the spacer layer. Thereby, the adverse effect of the disturbance magnetic field is suppressed and the recording property is appropriately maintained.
摘要翻译： 辅助轭层设置在主磁极层上，间隔层位于它们之间。 辅助磁轭层的后端和返回磁轭层的后端彼此连接。 除了记录之外，除了间隔层的存在之外，除了主磁极层和辅助磁轭层之间的磁连接之外， 另一方面，具有显着高于干扰磁场的磁场强度的记录磁场通过间隔层到达主磁极层。 由此，能够抑制干扰磁场的不良影响，适当地保持记录性。
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7.发明授权公开(公告)号：US07433153B2
公开(公告)日：2008-10-07
申请号：US10235262
申请日：2002-09-05
申请人： Yoshihiro Kanada , Hisayuki Yazawa
发明人： Yoshihiro Kanada , Hisayuki Yazawa
CPC分类号： B82Y25/00 , G11B5/3109 , G11B5/3163 , H01F10/14 , H01F10/16 , H01F10/324 , H01F41/26
摘要： The upper magnetic pole layer and/or lower magnetic pole layer comprises a soft magnetic film having a variable region in which the chemical composition of Fe changes in the direction of thickness in at least a part thereof, and the difference of the proportions of Fe between the regions most abundant in Fe and most deficient in Fe is 4% by mass or more in the variable region. The structure of the soft magnetic film permits the saturation magnetic flux density Bs to be improved while decreasing the coercive force Hc by forming fine crystal grains, thereby enabling a thin film magnetic head excellent in high density recording to be manufactured.
摘要翻译： 上磁极层和/或下磁极层包括具有可变区域的软磁性膜，其中Fe的化学组成在其至少一部分中在厚度方向上变化，并且Fe之间的比例差异 Fe最丰富，Fe含量最多的区域在可变区域中为4质量％以上。 通过形成微细的晶粒，软磁性膜的结构能够提高饱和磁通密度Bs，同时降低矫顽力Hc，从而能够制造出高密度记录性优异的薄膜磁头。
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公开(公告)号：US20080218908A1
公开(公告)日：2008-09-11
申请号：US12037369
申请日：2008-02-26
申请人： Hisayuki Yazawa , Kiyoshi Kobayashi
发明人： Hisayuki Yazawa , Kiyoshi Kobayashi
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163
摘要： A perpendicular magnetic recording head includes a main magnetic pole layer; and a return yoke layer laminated on the main magnetic pole layer with a magnetic gap layer formed of a nonmagnetic material disposed on an opposing surface opposite a recording medium. The return yoke layer includes a first throat part opposing the main magnetic pole layer at a side close to the recording medium-opposing surface with a first gap spacing corresponding to a film thickness of the magnetic gap layer; and a second throat part extending to a deeper side than the first throat part in a height direction and opposing the main magnetic pole layer with a second gap spacing greater than the first gap spacing. A throat height determining layer is provided on the main magnetic pole layer or the magnetic gap layer, the throat height determining layer defining a dimension of the first throat part of the return yoke layer in the height direction and formed of an inorganic nonmagnetic material.
摘要翻译： 垂直磁记录头包括主磁极层; 以及层叠在主磁极层上的返回轭层，其具有由设置在与记录介质相对的相对表面上的非磁性材料形成的磁隙层。 返回轭层包括在接近记录介质相对表面的一侧与主磁极层相对的第一喉部，第一间隙间隔对应于磁隙层的膜厚度; 以及第二喉部，其在高度方向上延伸到比第一喉部更深的一侧，并且具有大于第一间隙间隔的第二间隙间隔与主磁极层相对。 喉部高度确定层设置在主磁极层或磁隙层上，喉部高度确定层限定返回磁轭层的高度方向的第一喉部的尺寸，并由无机非磁性材料形成。
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公开(公告)号：US07392577B2
公开(公告)日：2008-07-01
申请号：US10937646
申请日：2004-09-09
申请人： Hisayuki Yazawa , Kiyoshi Kobayashi
发明人： Hisayuki Yazawa , Kiyoshi Kobayashi
IPC分类号： G11B5/187
CPC分类号： G11B5/1272 , Y10T29/49041 , Y10T29/49043 , Y10T29/49046 , Y10T29/49052
摘要： A method of manufacturing a perpendicular magnetic head is disclosed, including perpendicular magnetic recording head includes forming a primary magnetic pole having a flat top surface, where a shield layer over the primary magnetic pole and at the sides of the primary magnetic pole is formed in a single piece. The distance in the direction perpendicular to the thickness direction between the side surfaces of the primary magnetic pole and the side shield layer is longer than the distance in the thickness direction between the top surface of the primary magnetic pole and the shield layer.
摘要翻译： 公开了一种制造垂直磁头的方法，包括垂直磁记录头，包括形成具有平坦顶表面的主磁极，其中主磁极上的屏蔽层和主磁极的侧面形成在 单件 在主磁极和侧屏蔽层的侧表面之间的垂直于厚度方向的方向上的距离比主磁极的顶表面和屏蔽层之间的厚度方向上的距离长。
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10.发明授权公开(公告)号：US07190553B2
公开(公告)日：2007-03-13
申请号：US09822576
申请日：2001-03-30
申请人： Sumihito Morita , Naruaki Oki , Hisayuki Yazawa , Minoru Yamada
发明人： Sumihito Morita , Naruaki Oki , Hisayuki Yazawa , Minoru Yamada
IPC分类号： G11B5/147
CPC分类号： G11B5/3146 , G11B5/3116 , G11B5/313
摘要： In a thin-film magnetic head, a lower magnetic pole layer and a planarizing magnetic layer in continuity with the lower magnetic layer are arranged. Since a coil formation surface is positioned lower than the top surface of the lower magnetic pole layer and the planarizing magnetic layer, the front end of an upper magnetic core layer is formed to be a predetermined track width with a high accuracy. A thin-film magnetic head having good information writing characteristics and a method for manufacturing the thin-film magnetic head are thus provided.
摘要翻译： 在薄膜磁头中，布置有与下磁性层连续的下磁极层和平坦化磁性层。 由于线圈形成表面位于比下磁极层和平坦化磁性层的顶表面低的位置，因此上磁芯层的前端以高精度形成为预定轨道宽度。 因此提供了具有良好信息写入特性的薄膜磁头和制造薄膜磁头的方法。
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