专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US07289296B2 Thin-film magnetic head having magnetic gap formed of NiP 失效
标题翻译：具有由NiP形成的磁隙的薄膜磁头
公开(公告)号：US07289296B2
公开(公告)日：2007-10-30
申请号：US10631580
申请日：2003-07-31
申请人： Yoshihiro Kanada , Hisayuki Yazawa
发明人： Yoshihiro Kanada , Hisayuki Yazawa
IPC分类号： G11B5/31
CPC分类号： G11B5/3163 , G11B5/232 , G11B5/3133 , Y10T428/1164 , Y10T428/1179
摘要： A gap of a thin-film magnetic head is formed of NiP. The P content of the NiP gap layer is controlled to be within the range of 11 mass percent to 14 mass percent so that the gap layer is nonmagnetic.
摘要翻译：薄膜磁头的间隙层由NiP形成。将NiP间隙层的P含量控制在11质量％〜14质量％的范围内，使间隙层成为非磁性。

12. 发明授权

US06751071B2 Thin film magnetic head comprising magnetoresistive element having shield layer formed by plating and method of manufacturing the thin film magnetic head 失效
标题翻译：薄膜磁头包括具有通过电镀形成的屏蔽层的磁阻元件和制造薄膜磁头的方法
公开(公告)号：US06751071B2
公开(公告)日：2004-06-15
申请号：US09760532
申请日：2001-01-16
申请人： Hisayuki Yazawa , Naoki Sakatsume , Yoshihiro Kanada
发明人： Hisayuki Yazawa , Naoki Sakatsume , Yoshihiro Kanada
IPC分类号： G11B539
CPC分类号： G11B5/3903 , G11B5/3163 , G11B5/3967 , Y10T29/49048
摘要： An upper shield layer includes a Ni—Fe alloy underlying film formed by sputtering deposition, and a Ni—Fe alloy plating film formed on the underlying film by electroplating. The Fe composition ratio distribution of the upper shield layer in the thickness direction ranges from 17 to 19% by weight.
摘要翻译：上屏蔽层包括通过溅射沉积形成的底层Ni-Fe合金和通过电镀形成在下面的膜上的Ni-Fe合金镀膜。上屏蔽层的厚度方向的Fe组成比分布为17〜19重量％。

13. 发明申请

US20080266720A1 THIN FILM MAGNETIC HEAD AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：薄膜磁头及其制造方法
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。

14. 发明授权

US08418557B2 Physical quantity sensor 有权
标题翻译：物理量传感器
公开(公告)号：US08418557B2
公开(公告)日：2013-04-16
申请号：US12841748
申请日：2010-07-22
申请人： Hisayuki Yazawa , Kiyoshi Sato , Katsuya Kikuiri , Toru Takahashi , Hisanobu Ohkawa
发明人： Hisayuki Yazawa , Kiyoshi Sato , Katsuya Kikuiri , Toru Takahashi , Hisanobu Ohkawa
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。

15. 发明授权

US07990654B2 Perpendicular magnetic recording head 有权
标题翻译：垂直磁记录头
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。

16. 发明授权

US07593185B2 Perpendicular magnetic recording head having spacer layer in predetermined portion 有权
标题翻译：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。

17. 发明申请

US20080218908A1 PERPENDICULAR MAGNETIC RECORDING HEAD AND MANUFACTURING METHOD THEREOF 有权
标题翻译：全能磁记录头及其制造方法
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
IPC分类号： G11B5/33 , B05D5/12
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。

18. 发明授权

US07392577B2 Method for manufacturing a perpendicular magnetic head 失效
标题翻译：垂直磁头制造方法
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。

19. 发明授权

US07190553B2 Thin-film magnetic head having lower magnetic pole layer and insulator layer behind the lower magnetic pole layer in the direction of height of the pole layer, and method for manufacturing the thin-film magnetic head 失效
标题翻译：在磁极层的高度方向上具有下磁极层后方的磁极层和绝缘体层的薄膜磁头以及制造薄膜磁头的方法
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。

20. 发明授权

US07181829B2 Method of manufacturing a perpendicular magnetic recording head 失效
标题翻译：制造垂直磁记录头的方法
公开(公告)号：US07181829B2
公开(公告)日：2007-02-27
申请号：US11222441
申请日：2005-09-08
申请人： Toru Takahashi , Hisayuki Yazawa , Hideki Gochou , Kiyoshi Kobayashi , Minoru Yamada , Kiyoshi Sato , Toshinori Watanabe
发明人： Toru Takahashi , Hisayuki Yazawa , Hideki Gochou , Kiyoshi Kobayashi , Minoru Yamada , Kiyoshi Sato , Toshinori Watanabe
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.
摘要翻译：在平坦化面平坦化的绝缘层上形成有主磁极层，独立于主磁极，在主磁极层的下方形成有膜厚较大的磁轭层。主磁极层的前端表面形成为具有随着前端表面离开辅助磁极层而在轨道宽度方向上逐渐增加的宽度尺寸的形状。可以提供一种垂直磁记录头，其可以抑制记录图案中的边缘的发生，并且可以以高图案精度形成主磁极层，并且可以令人满意地将记录磁场引入主磁极的前端层。

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