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71. 发明申请

US20060221484A1 Magnetic disk apparatus 审中-公开
标题翻译：磁盘装置
公开(公告)号：US20060221484A1
公开(公告)日：2006-10-05
申请号：US11384266
申请日：2006-03-21
申请人： Tomomi Funayama
发明人： Tomomi Funayama
IPC分类号： G11B5/03
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3929 , G11B2005/0016 , G11B2005/3996
摘要： A magnetic disk apparatus with a magnetic disk medium capable of recording data magnetically, comprises a current perpendicular to plane magnetic reproducing head which includes a magnetoresistive effect element composed of a plurality of magnetic films stacked one on top of another and causes sense current to flow in the direction perpendicular to the stacked faces of the plurality of magnetic films, a high-pass filter which suppresses the low-frequency component of a reproduced signal output from the magnetic reproducing head, and a reproduced-signal processing section which reproduces the data from the reproduced signal which has the low-frequency component suppressed.
摘要翻译：具有能够磁性地记录数据的磁盘介质的磁盘装置包括垂直于平面磁性再现头的电流，该电流包括由多个磁性膜组成的磁阻效应元件，所述多个磁性膜层叠在一起，并使感测电流流入垂直于多个磁性膜的层叠面的方向，抑制从磁再现头输出的再现信号的低频分量的高通滤波器，以及再现信号处理部，再生信号处理部抑制低频成分的再生信号。

72. 发明授权

US5894384A Magnetoresistance effect head in which a magnetoresistance effect element and a soft magnetic film form a single magnetic circuit 失效
标题翻译：其中磁阻效应元件和软磁膜形成单个磁路的磁阻效应头
公开(公告)号：US5894384A
公开(公告)日：1999-04-13
申请号：US816336
申请日：1997-03-13
申请人： Tomomi Funayama , Tadahiko Kobayashi , Hiromi Sakata , Kohichi Tateyama
发明人： Tomomi Funayama , Tadahiko Kobayashi , Hiromi Sakata , Kohichi Tateyama
IPC分类号： G11B5/00 , G11B5/127 , G11B5/31 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3916 , G11B5/3919 , G11B5/3958 , G11B5/3967 , G11B2005/0008 , G11B2005/3996 , G11B5/3113 , G11B5/3183
摘要： The magnetic head comprises two magnetoresistance effect elements and a soft magnetic film connecting end portions of the magnetoresistance effect elements with each other. The two magnetoresistance effect elements and the soft magnetic film are arranged in series so as to form a single magnetic circuit, and a magnetic gap is provided in the side of a surface facing a magnetic medium. Magnetic flux from the magnetic medium is introduced into the magnetoresistance effect elements through the magnetic gap. An insulating material may be used to fill the magnetic gap.
摘要翻译：磁头包括两个磁阻效应元件和连接磁阻效应元件的端部彼此的软磁膜。两个磁阻效应元件和软磁膜被串联布置以形成单个磁路，并且在面向磁介质的表面的侧面设置磁隙。来自磁介质的磁通量通过磁隙引入到磁阻效应元件中。可以使用绝缘材料来填充磁隙。

73. 发明授权

US07126795B2 Magnetic recording head, a magnetic reproducing head, a magnetic recording apparatus, and a magnetic reproducing apparatus 失效
公开(公告)号：US07126795B2
公开(公告)日：2006-10-24
申请号：US09938611
申请日：2001-08-27
申请人： Tomomi Funayama , Kohichi Tateyama , Michiko Hara , Masatoshi Yoshikawa , Hiroaki Yoda
发明人： Tomomi Funayama , Kohichi Tateyama , Michiko Hara , Masatoshi Yoshikawa , Hiroaki Yoda
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3113 , G11B5/3146 , G11B5/3183 , G11B5/3919 , G11B5/3935 , G11B2005/3996
摘要： A magnetic recording head, a magnetic reproducing head, a magnetic recording apparatus comprising the magnetic recording head, and a magnetic reproducing apparatus comprising the magnetic reproducing head are described. The magnetic reproducing head having a magnetic gap at a medium-facing surface and includes a pair of magnetic yokes of ferromagnetic material, a magnetoresistance effect film, and a pair of biasing films. One of the pair of magnetic yokes has a magnetic tip at the medium-facing surface and also a rear portion recessed from the medium-facing surface and magnetically coupled to the magnetic tip. The magnetic tip has a first width in a track width direction at the medium-facing surface, and the rear portion has a second width in the track width direction wider than the first width. The magnetoresistance effect film is recessed from the medium-facing surface and is magnetically coupled to the pair of magnetic yokes of ferromagnetic material. The pair of biasing films are recessed from the medium-facing surface and one of the pair of biasing films comprises a hard magnetic material layer disposed adjacent to the rear portion or an antiferromagnetic material layer disposed in contact with the rear portion. The magnetic tip may be provided with appropriate volume of the magnetic biasing from the magnetic biasing film and magnetic domains in the magnetic tip may be sufficiently controlled.

74. 发明授权

US07100267B2 Magnetic head, method for producing same, and magnetic recording and/or reproducing system 有权
标题翻译：磁头，其制造方法以及磁记录和/或再现系统
公开(公告)号：US07100267B2
公开(公告)日：2006-09-05
申请号：US10635508
申请日：2003-08-07
申请人： Hiroaki Yoda , Yuichi Osawa , Tomomi Funayama
发明人： Hiroaki Yoda , Yuichi Osawa , Tomomi Funayama
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/3925 , G11B5/00 , G11B5/127 , G11B5/1278 , G11B5/3116 , G11B2005/0002 , G11B2005/0021 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49055 , Y10T29/49067
摘要： A method for producing a magnetic head, including the steps of forming a magnetic body on a substrate, the magnetic body including a principal plane facing the substrate and a rear plane opposite to the principal plane; applying a beam to the rear plane of the magnetic body and forming a portion defining a hole extending from the rear plane to the principal plane; forming a magnetic gap in the hole; and separating the magnetic body and the magnetic gap from the substrate and forming medium facing surface substantially coplanar with the principal plane.
摘要翻译：一种制造磁头的方法，包括以下步骤：在基板上形成磁体，所述磁体包括面向所述基板的主平面和与所述主平面相对的后平面; 将光束施加到磁体的后平面并形成限定从后平面延伸到主平面的孔的部分; 在孔中形成磁隙; 并且将磁体和磁隙从衬底分离并且形成与主平面大致共面的介质面对表面。

75. 发明授权

US5336337A Magnetrostrictive materials and methods of making such materials 失效
标题翻译：磁致伸缩材料及其制造方法
公开(公告)号：US5336337A
公开(公告)日：1994-08-09
申请号：US830569
申请日：1992-02-04
申请人： Tomomi Funayama , Tadahiko Kobayashi , Isao Sakai , Masashi Sahashi
发明人： Tomomi Funayama , Tadahiko Kobayashi , Isao Sakai , Masashi Sahashi
IPC分类号： H01F1/03 , H01L41/20 , H01F1/04
CPC分类号： H01F1/0306 , H01L41/20
摘要： The magnetostriction alloys of the present invention are composed basically of Tb-Dy-iron which is partially substituted by at least one element selected from the group consisting of Y, La, Cs, Pr, Nd and Sm, and have been grown in the direction of face index or contain Mn and M element (at least one metallic element selected from the group consisting of C, Mg, Al, Si, Ca, Zr, Y, Ga and B. The magnetostrictive alloy may be formed by melting the constituent materials by high frequency induction dissolution. The molten materials are cast in a heated mold having a temperature gradient. The solidified material may be further treated by hot working.
摘要翻译：本发明的磁致伸缩合金基本上由部分被选自Y，La，Cs，Pr，Nd和Sm中的至少一种元素取代的Tb-Dy-铁组成，并且沿着的表面指数<110>或含有Mn和M元素（选自C，Mg，Al，Si，Ca，Zr，Y，Ga和B中的至少一种金属元素）。磁致伸缩合金可以通过熔化通过高频感应溶解构成材料，熔融材料在具有温度梯度的加热模具中铸造，固化材料可以通过热加工进一步处理。

76. 发明授权

US5190599A Magnetic memory and magnetic alloy thereof 失效
标题翻译：磁记忆及其磁性合金
公开(公告)号：US5190599A
公开(公告)日：1993-03-02
申请号：US586983
申请日：1990-09-24
申请人： Masashi Sahashi , Yoichi Tokai , Tomomi Funayama
发明人： Masashi Sahashi , Yoichi Tokai , Tomomi Funayama
IPC分类号： C22C5/04 , G11B5/64 , H01F1/00 , H01F1/01 , H01F1/03 , H01F10/14
CPC分类号： G11B5/653 , H01F1/012 , H01F1/0306
摘要： A magnetic memory and a magnetic alloy thereof are disclosed, which comprise a magnetic alloy whose main phase is an iso-molar compound phase, the iso-molar compound phase being represented with general expression Pt(Fe.sub.1-x Mn.sub.x)Sn where the relationship of 0
摘要翻译：公开了一种磁记忆体及其磁性合金，它们包括主相为异摩尔化合物相的磁性合金，异摩尔化合物相以通式Pt（Fe1-x Mnx）Sn表示，其中， 0

77. 发明申请

US20120182646A1 PERPENDICULAR MAGNETIC RECORDING HEAD AND MAGNETIC DISK APPARATUS 有权
标题翻译：全磁性记录头和磁盘设备
公开(公告)号：US20120182646A1
公开(公告)日：2012-07-19
申请号：US13431004
申请日：2012-03-27
申请人： Tomoko Taguchi , Tomomi Funayama , Yuka Aoyagi , Katsuhiko Koui
发明人： Tomoko Taguchi , Tomomi Funayama , Yuka Aoyagi , Katsuhiko Koui
IPC分类号： G11B5/127 , G11B5/54 , G11B5/11
CPC分类号： G11B5/3143 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： According to one embodiment, a perpendicular magnetic recording head includes a main pole which generates a recording magnetic field, a return pole which forms a closed magnetic circuit for the recording magnetic field, and a side shield magnetically spaced from the main pole in a cross-track direction in which a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole.
摘要翻译：根据一个实施例，垂直磁记录头包括产生记录磁场的主极，形成用于记录磁场的闭合磁路的返回极，以及在横截面中与主极磁隔离的侧屏蔽，轨道方向，其中最靠近主极的侧护板的后缘上的点位于主杆的后缘的前侧。

78. 发明授权

US07463455B2 Magnetoresistive head having first and second shield layers between first and second lead layers 有权
标题翻译：磁阻头在第一和第二引线层之间具有第一和第二屏蔽层
公开(公告)号：US07463455B2
公开(公告)日：2008-12-09
申请号：US11200161
申请日：2005-08-10
申请人： Tomomi Funayama
发明人： Tomomi Funayama
IPC分类号： G11B5/39 , G11B5/11
CPC分类号： B82Y10/00 , G11B5/3903 , G11B5/3912
摘要： A magnetic head provided with magnetoresistance effect element, the magnetic head comprises first shielding layer superimposed on one surface of the magnetoresistance effect element and whose area is larger than that of this one surface, a first lead layer formed ranging from a portion where the first shielding layer is superimposed on the magnetoresistance effect element to another portion on the first shielding layer and which applies the sense current to the magnetoresistance effect element, a second shielding layer superimposed on another surface of the magnetoresistance effect element opposite to the one surface and whose area is larger than that of the other surface, and a second lead layer formed ranging from a portion where the second shielding layer is superimposed on the magnetoresistance effect element to another portion on the second shielding layer and which applies the sense current to the magnetoresistance effect element.
摘要翻译：一种设置有磁阻效应元件的磁头，磁头包括叠加在磁阻效应元件的一个表面上并且面积大于该一个表面的第一屏蔽层，第一引线层从第一屏蔽层层叠在磁阻效应元件上，并与第一屏蔽层上的另一部分叠加，并将感应电流施加到磁阻效应元件，第二屏蔽层叠加在与该表面相反的磁阻效应元件的另一个表面上，大于其他表面的第二引线层，以及第二引线层，其从第二屏蔽层的重叠在磁阻效应元件上的部分到第二屏蔽层上的另一部分形成，并且将感测电流施加到磁阻效应元件。

79. 发明授权

US06665143B2 Magnetic head, method for producing same, and magnetic recording and/or reproducing system 有权
标题翻译：磁头，其制造方法以及磁记录和/或再现系统
公开(公告)号：US06665143B2
公开(公告)日：2003-12-16
申请号：US09810187
申请日：2001-03-19
申请人： Hiroaki Yoda , Yuichi Osawa , Tomomi Funayama
发明人： Hiroaki Yoda , Yuichi Osawa , Tomomi Funayama
IPC分类号： G11B5127
CPC分类号： G11B5/3925 , G11B5/00 , G11B5/127 , G11B5/1278 , G11B5/3116 , G11B2005/0002 , G11B2005/0021 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49055 , Y10T29/49067
摘要： There is provided a magnetic head capable of efficiently carrying out a recording or reproducing operation even in the case of a shorter magnetic path length and a shorter wavelength signal. The magnetic head comprises: a pair of magnetic bodies including respective first and second medium facing surfaces, respective first and second rear surfaces opposite to the medium facing surfaces, and respective inner side surfaces, the inner side surfaces facing each other; and a magnetic gap disposed between the inner side surfaces and including third medium facing surface coplanar with the first and the second medium facing surfaces and third rear surface coplanar with the first and second rear surfaces; one of the inner side surfaces satisfying relationships of x=G1 /2 with respect to 0≦y≦TH, and 0.1·tan{2(x−G1 /2)}+TH≦y≦5·tan(2(x−G1/2))+TH with respect to TH≦y where x represents X-coordinate of the one of the inner side surfaces and y represents Y-coordinate of the one of the inner side surfaces, the X-axis extends from a center of the third medium facing surface toward a center of the first or the second medium facing surface, the Y-axis extends from the center of the third medium facing surface toward the third rear surface, the Y-axis is substantially perpendicular to the X-axis, and G1 and TH respectively represent constants.
摘要翻译：即使在较短的磁路长度和较短的波长信号的情况下，也能够有效地执行记录或重放操作的磁头。磁头包括：一对磁体，包括相应的第一和第二介质面对表面，与介质相对表面相对的相应的第一和第二后表面，以及相应的内侧表面，内侧表面彼此相对; 以及设置在所述内侧表面之间并且包括与所述第一和第二介质相对表面共面的第三介质面对表面和与所述第一和第二后表面共面的第三后表面的磁隙; 内侧表面满足关系的其中一个表示内侧表面之一的X坐标，y表示内侧表面之一的Y坐标，X轴从第三介质的中心朝向面朝向第一或第二介质面向表面的中心，Y轴从第三介质相对表面的中心朝向第三后表面延伸，Y轴基本上垂直于X轴，并且G1和 TH分别表示常数。

80. 发明授权

US06606225B1 Yoke-type magnetic head and device having a granular structure in which a non-magnetic and electrical insulating material surrounds magnetic particles 失效
标题翻译：轭型磁头和具有非磁性和电绝缘材料围绕磁性颗粒的颗粒结构的装置
公开(公告)号：US06606225B1
公开(公告)日：2003-08-12
申请号：US09583575
申请日：2000-05-31
申请人： Tomomi Funayama , Yuichi Osawa , Masatoshi Yoshikawa , Hiroaki Yoda
发明人： Tomomi Funayama , Yuichi Osawa , Masatoshi Yoshikawa , Hiroaki Yoda
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/1278 , G11B5/3183 , G11B5/3903 , G11B5/3925 , G11B2005/3996
摘要： The objective of this invention is to provide a yoke-type magnetic head and a magnetic recording device in which Barkhausen noise is low. It is possible to induce a magnetic flux efficiently within a magnetic head by using a granular magnetic film that exhibits both soft magnetic properties and a high resistance, which suppresses any shunt of the flow of the sense current into the magnetic yokes, thus preventing any deterioration insensitivity. Since this means that eddy currents can be suppressed, even during use in high-frequency regions, the frequency response characteristics are also improved. In addition, since the magnetic grains within the granular magnetic film are nano-sized, the dimensions of magnetic domains therein are also miniaturized to match that size, and thus there is also substantially no movement of the magnetic domain walls and this miniaturization also makes it possible to suppress the generation of Barkhausen noise. A similar effect can also be obtained by inducing maze domains within the magnetic yokes.
摘要翻译：本发明的目的是提供一种轭型磁头和一种其中巴克豪森噪声低的磁记录装置。通过使用表现出软磁性能和高电阻的粒状磁性膜，能够有效地在磁头内引起磁通，这抑制了磁轭中感应电流流动的任何分流，从而防止任何劣化不敏感。由于这意味着即使在高频区域使用时也能够抑制涡流，所以也提高了频率响应特性。此外，由于粒状磁性膜内的磁性粒子是纳米尺寸的，因此其中的磁畴的尺寸也小型化以与该尺寸相匹配，因此也基本上没有磁畴壁的移动，并且这种小型化也使得它可能抑制巴克豪森噪音的产生。通过诱导磁轭内的迷宫结构也可以获得类似的效果。

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