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1. 发明申请

US20090097159A1 PERPENDICULAR MAGNETIC RECORDING HEAD AND MANUFACTURING METHOD THEREFOR 审中-公开
标题翻译：全能磁记录头及其制造方法
公开(公告)号：US20090097159A1
公开(公告)日：2009-04-16
申请号：US12236329
申请日：2008-09-23
申请人： Mitsuru Otagiri , Hiroshi Shirataki , Yuko Miyake
发明人： Mitsuru Otagiri , Hiroshi Shirataki , Yuko Miyake
IPC分类号： G11B5/127 , B05D3/12
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116
摘要： A manufacturing method for a perpendicular magnetic recording head includes the steps of forming a groove in a first nonmagnetic layer, forming a side shield, forming a second nonmagnetic layer, forming a main-magnetic-pole front end portion and forming a main-magnetic-pole yoke portion. The groove extends in a front-rear direction orthogonal to an air bearing surface. The side shield of soft magnetic material, the second nonmagnetic layer and the main-magnetic-pole front end portion of soft magnetic material are formed on an inner wall of the groove. The main-magnetic-pole front end portion is not magnetostatically coupled to the side shield. The main-magnetic-pole yoke portion magnetically is insulated from the side shield and magnetically connected to the main-magnetic-pole front end portion. The main-magnetic-pole yoke portion widens from the main-magnetic-pole front end portion toward a rear side.
摘要翻译：一种垂直磁记录头的制造方法，包括以下步骤：在第一非磁性层中形成凹槽，形成侧屏蔽，形成第二非磁性层，形成主磁极前端部分，并形成主磁极 - 极轭部分。凹槽在垂直于空气轴承表面的前后方向上延伸。软磁材料的侧屏蔽，软磁材料的第二非磁性层和主磁极前端部形成在槽的内壁上。主磁极前端部分没有静磁耦合到侧屏蔽。主磁极轭部磁性地与侧屏蔽绝缘，并且与主磁极前端部磁性连接。主磁极轭部从主磁极前端部向后侧变宽。

2. 发明申请

US20070211380A1 Perpendicular magnetic head 审中-公开
标题翻译：垂直磁头
公开(公告)号：US20070211380A1
公开(公告)日：2007-09-13
申请号：US11483318
申请日：2006-07-07
申请人： Hideyuki Akimoto , Mitsuru Otagiri , Hiroshi Shirataki
发明人： Hideyuki Akimoto , Mitsuru Otagiri , Hiroshi Shirataki
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/1872 , G11B5/3116 , G11B5/3146
摘要： The perpendicular magnetic head is capable of solving the problems of side track erasing and pole erasing. The perpendicular magnetic head of the present invention comprises a write-head, which includes a main magnetic pole emitting magnetic fluxes toward a recording medium. An end face of a pole end is formed into a T-shape. A longitudinal pole section of the pole end is made of a low Bs magnetic thin film, whose end face is formed into a rectangle. A transverse pole section of the pole end is made of a high Bs magnetic thin film, whose end face is formed into a rectangle. The low Bs magnetic thin film and the high Bs magnetic thin film are determined by the formula: (area of the end face of the low Bs magnetic thin film)×(saturation magnetic flux density of the low Bs magnetic thin film)>(area of the end face of the high Bs magnetic thin film)×(saturation magnetic flux density of the high Bs magnetic thin film).
摘要翻译：垂直磁头能够解决侧轨擦除和磁极擦除的问题。本发明的垂直磁头包括一个写入头，它包括一个朝着记录介质发射磁通的主磁极。极端的端面形成为T字形。极端的纵极部由低Bs磁性薄膜制成，其端面形成为矩形。极端的横极部由高Bs磁性薄膜制成，其端面形成为矩形。低Bs磁性薄膜和高Bs磁性薄膜由以下公式确定：（低Bs磁性薄膜的端面的面积）×（低Bs磁性薄膜的饱和磁通密度）>（面积的高Bs磁性薄膜的端面）x（高Bs磁性薄膜的饱和磁通密度）。

3. 发明申请

US20080002306A1 Magnetic head 审中-公开
标题翻译：磁头
公开(公告)号：US20080002306A1
公开(公告)日：2008-01-03
申请号：US11516938
申请日：2006-09-07
申请人： Mitsuru Otagiri , Hideyuki Akimoto , Masaya Kato , Hiroshi Shirataki
发明人： Mitsuru Otagiri , Hideyuki Akimoto , Masaya Kato , Hiroshi Shirataki
IPC分类号： G11B5/33
CPC分类号： G11B5/398 , G11B5/112 , G11B5/3912
摘要： The magnetic head is capable of preventing variation of magnetic fields working to a read-element, stably generating output signals and improving production yield. The magnetic head comprises: a read-head including a read-element; and a shield for magnetic-shielding the read-element, the shield has a hexagonal planar shape, and one side of the shield is flush with an air bearing surface of the magnetic head.
摘要翻译：磁头能够防止作用于读取元件的磁场的变化，稳定地产生输出信号并提高产量。磁头包括：包括读取元件的读取头; 以及用于屏蔽读取元件的屏蔽件，屏蔽件具有六边形平面形状，并且屏蔽件的一侧与磁头的空气轴承表面齐平。

4. 发明授权

US06376108B1 Magnetic material and magnetic head using the same and magnetic storage device having thereof 失效
标题翻译：磁性材料和使用该磁性材料的磁头以及具有该磁性材料的磁存储装置
公开(公告)号：US06376108B1
公开(公告)日：2002-04-23
申请号：US09460064
申请日：1999-12-14
申请人： Mitsuru Otagiri , Sanae Takefusa , Yuko Miyake
发明人： Mitsuru Otagiri , Sanae Takefusa , Yuko Miyake
IPC分类号： G11B566
CPC分类号： G11B5/3967 , G11B5/3109 , G11B5/3113 , H01F1/14708 , H01F10/14 , Y10S428/90 , Y10T428/11 , Y10T428/24942
摘要： This invention is to provide a magnetic head consisting of NiFeMo alloy which assures excellent high frequency characteristic and makes easy formation of magnetic domain structure without any heat treatment and thereby contributes to improvement of magnetic recording capability. Magnetic material for a magnetic head includes Ni, Fe and Mo. The composition ratio of NiFeMo is selected under the condition where Ni is 77 to 82 atom %, Fe is 15 to 21 atom %, Mo is under 6 atom %, and magnetic strain constant &lgr;s is in the range of −1×10−6≦&lgr;s ≦10−6.
摘要翻译：本发明提供一种由NiFeMo合金组成的磁头，其确保优异的高频特性，并且容易地形成磁畴结构而无需任何热处理，从而有助于提高磁记录能力。用于磁头的磁性材料包括Ni，Fe和Mo。NiFeMo的组成比在Ni为77至82原子％，Fe为15至21原子％，Mo为6原子％，磁应变恒定的羔羊在-1x10-6 <= lambds <= 10-6的范围内。

5. 发明授权

US06826013B2 Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：US06826013B2
公开(公告)日：2004-11-30
申请号：US09867822
申请日：2001-05-30
申请人： Mitsuru Otagiri , Yuko Miyake , Sanae Shimizu
发明人： Mitsuru Otagiri , Yuko Miyake , Sanae Shimizu
IPC分类号： G11B521
CPC分类号： G11B5/00 , G11B5/3109 , G11B5/3143 , G11B5/3146 , G11B5/3163
摘要： A thin film magnetic head comprising a substrate, a lower magnetic pole provided on the substrate, a write gap layer located on the lower magnetic pole, and an upper magnetic pole located on the gap layer, the upper magnetic pole including a plating base layer in contact with the gap layer, wherein the plating base layer of the upper magnetic pole is made of a magnetic film having a saturation magnetic flux density of 1.2 T or larger. The thin film magnetic head has an increased recording density, and is adapted to recording at an increased frequency.
摘要翻译：一种薄膜磁头，包括基板，设置在基板上的下磁极，位于下磁极上的写间隙层和位于间隙层上的上磁极，上磁极包括镀基底层与间隙层接触，其中上磁极的电镀基层由饱和磁通密度为1.2T或更大的磁膜制成。薄膜磁头具有增加的记录密度，并且适于以增加的频率进行记录。

6. 发明授权

US5729411A Magnetoresistive head and magnetoresistive recording/reproducing drive with an antiferromagnetic layer of high corrosion resistance 失效
标题翻译：磁阻磁头和具有高抗腐蚀性的反铁磁层的磁阻记录/再现驱动
公开(公告)号：US5729411A
公开(公告)日：1998-03-17
申请号：US677612
申请日：1996-07-09
申请人： Hitoshi Kishi , Kazuo Kobayashi , Atsushi Tanaka , Yasuhiro Kitade , Yuko Miyake , Mitsuru Otagiri
发明人： Hitoshi Kishi , Kazuo Kobayashi , Atsushi Tanaka , Yasuhiro Kitade , Yuko Miyake , Mitsuru Otagiri
IPC分类号： G11B5/31 , G11B5/39 , G11B5/40
CPC分类号： G11B5/39 , G11B5/3106 , G11B5/3163 , G11B5/40
摘要： A magnetoresistive head in which an antiferromagnetic material having superior corrosion resistance is used is disclosed. In the magnetoresistive head, a pair of anti-ferromagnetic layers 24a and 24b are formed while contacting with a soft magnetic layer 23, and the antiferromagnetic layers 24a and 24b are made of a PdMn film.
摘要翻译：公开了一种使用具有优异耐腐蚀性的反铁磁材料的磁阻头。在磁阻头中，与软磁性层23接触形成一对反铁磁性层24a，24b，反铁磁层24a，24b由PdMn膜构成。

7. 发明申请

US20080291571A1 MAGNETIC HEAD AND INFORMATION STORAGE DEVICE 审中-公开
标题翻译：磁头和信息存储设备
公开(公告)号：US20080291571A1
公开(公告)日：2008-11-27
申请号：US12112741
申请日：2008-04-30
申请人： Yuko Miyake , Masaaki Matsuoka , Mitsuru Otagiri
发明人： Yuko Miyake , Masaaki Matsuoka , Mitsuru Otagiri
IPC分类号： G11B5/17
CPC分类号： G11B5/1278 , G11B5/147 , G11B5/3116
摘要： A magnetic head of the present invention includes a magnetic pole that faces a surface of a recording medium, moves relative to the surface in a direction along the surface, and produces a line of magnetic force intersecting the surface of the recording medium; and a coil that excites the magnetic pole, wherein the magnetic pole includes a laminate with a coercivity of 800 A/m or less, the laminate including two or more layers stacked in a direction along the movement relative to the surface of the recording medium, the two or more layers including a first magnetic layer located at a frontmost position of the movement, and a second magnetic layer located at a rearmost position of the movement, the second magnetic layer having a saturation magnetic flux density higher than a saturation magnetic flux density of the first magnetic layer.
摘要翻译：本发明的磁头包括面向记录介质表面的磁极，沿着表面的方向相对于表面移动，并产生与记录介质的表面相交的磁力线; 励磁磁极的线圈，其中所述磁极包括矫顽力为800A / m以下的层压体，所述层压体包括沿着相对于所述记录介质的表面的移动方向上堆叠的两层或更多层，所述两层或多层包括位于所述运动的最前面位置处的第一磁性层和位于所述运动的最后位置的第二磁性层，所述第二磁性层具有高于饱和磁通密度的饱和磁通密度的第一磁性层。

8. 发明申请

US20080019045A1 Perpendicular magnetic head 审中-公开
标题翻译：垂直磁头
公开(公告)号：US20080019045A1
公开(公告)日：2008-01-24
申请号：US11904215
申请日：2007-09-26
申请人： Mitsuru Otagiri , Yuko Miyake
发明人： Mitsuru Otagiri , Yuko Miyake
IPC分类号： G11B5/335
CPC分类号： G11B5/1278
摘要： A perpendicular magnetic head suppresses pole erasing due to a remanent magnetization component of a main pole and is capable of higher density recording. The perpendicular magnetic head is equipped with a main pole that produces magnetic flux toward a medium surface of a recording medium. The main pole is formed by laminating a top thin magnetic layer and a bottom thin magnetic layer in the thickness direction. The top thin magnetic film is formed as a high Bs thin magnetic film with a first saturation flux density and the bottom thin magnetic film is formed as a low Bs thin magnetic film with a second saturation flux density that is lower than the first saturation flux density, and the high Bs thin magnetic film and the low Bs thin magnetic film satisfy the following equation (volume of the high Bs thin magnetic film)×(first saturation flux density)
摘要翻译：垂直磁头由于主极的剩余磁化分量而抑制磁极擦除并且能够进行更高密度的记录。垂直磁头配备有朝向记录介质的介质表面产生磁通的主极。主极通过在厚度方向层叠顶部薄磁性层和底部薄磁性层而形成。顶部薄磁膜形成为具有第一饱和磁通密度的高Bs薄磁膜，并且底部薄磁膜形成为具有低于第一饱和磁通密度的第二饱和磁通密度的低Bs薄磁膜，高Bs薄磁膜和低Bs薄磁膜满足下列公式<？in-line-formula description =“In-line Formulas”end =“lead”？>（高Bs薄磁膜的体积）x（第一饱和磁通密度）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead” <>（低Bs薄磁膜的体积）×（第二饱和磁通密度）<？在线公式描述=“在线公式”end =“tail”？>

9. 发明授权

US6007643A Method of manufacturing magnetoresistive head 失效
标题翻译：制造磁阻头的方法
公开(公告)号：US6007643A
公开(公告)日：1999-12-28
申请号：US920811
申请日：1997-08-29
申请人： Hitoshi Kishi , Kazuo Kobayashi , Atsushi Tanaka , Yasuhiro Kitade , Yuko Miyake , Mitsuru Otagiri
发明人： Hitoshi Kishi , Kazuo Kobayashi , Atsushi Tanaka , Yasuhiro Kitade , Yuko Miyake , Mitsuru Otagiri
IPC分类号： G11B5/31 , G11B5/39 , G11B5/40 , H01F1/147
CPC分类号： G11B5/3932 , G11B5/3163 , G11B5/40 , Y10T29/49034
摘要： A magnetoresistive head in which an antiferromagnetic material having superior corrosion resistance is used is disclosed. In the magnetoresistive head, a pair of anti-ferromagnetic layers 24a and 24b are formed while contacting with a soft magnetic layer 23, and the antiferromagnetic layers 24a and 24b are made of a PdMn film.
摘要翻译：公开了一种使用具有优异耐腐蚀性的反铁磁材料的磁阻头。在磁阻头中，与软磁性层23接触形成一对反铁磁性层24a，24b，反铁磁层24a，24b由PdMn膜构成。

10. 发明申请

US20070247752A1 Perpendicular magnetic head 审中-公开
标题翻译：垂直磁头
公开(公告)号：US20070247752A1
公开(公告)日：2007-10-25
申请号：US11485494
申请日：2006-07-12
申请人： Mitsuru Otagiri , Yuko Miyake
发明人： Mitsuru Otagiri , Yuko Miyake
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3113
摘要： A perpendicular magnetic head suppresses pole erasing due to a remanent magnetization component of a main pole and is capable of higher density recording. The perpendicular magnetic head is equipped with a main pole that produces magnetic flux toward a medium surface of a recording medium as a write head. The main pole is formed by laminating two thin magnetic layers in the thickness direction. Out of the thin magnetic films, a top thin magnetic film is formed as a high Bs thin magnetic film with a first saturation flux density and a bottom thin magnetic film is formed as a low Bs thin magnetic film with a second saturation flux density that is lower than the first saturation flux density, and the high Bs thin magnetic film and the low Bs thin magnetic film satisfy the following equation (volume of the high Bs thin magnetic film)×(first saturation flux density)
摘要翻译：垂直磁头由于主极的剩余磁化分量而抑制磁极擦除并且能够进行更高密度的记录。垂直磁头配备有主磁极，其作为写头产生朝向记录介质的介质表面的磁通量。主极通过在厚度方向层叠两个薄磁性层而形成。在薄磁性膜中，形成具有第一饱和磁通密度的高Bs薄磁膜的顶部薄磁性膜，并且形成底部薄磁性膜作为具有第二饱和磁通密度的低Bs薄磁膜，低于第一饱和磁通密度，高Bs薄磁膜和低Bs薄磁膜满足下列公式<？in-line-formula description =“In-line Formulas”end =“lead”？>（volume 的高Bs薄磁膜）x（第一饱和磁通密度）<（LOWBs薄磁膜的体积）x（第二饱和磁通密度）。<？在线公式描述=“在线公式”end = “尾巴”？

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