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1. 发明授权

US08786986B2 Head-slider including thin-film magnetic-recording head having reduced thermal protrusion 有权
标题翻译：磁头滑块包括具有减小的热突起的薄膜磁记录头
公开(公告)号：US08786986B2
公开(公告)日：2014-07-22
申请号：US12642739
申请日：2009-12-18
申请人： Shigeo Fujita , Masahiko Soga , Hideaki Tanaka , Yuji Ueda , Tomohiro Okada , Takayoshi Ohtsu , Wataru Kimura , Yohji Maruyama
发明人： Shigeo Fujita , Masahiko Soga , Hideaki Tanaka , Yuji Ueda , Tomohiro Okada , Takayoshi Ohtsu , Wataru Kimura , Yohji Maruyama
IPC分类号： G11B5/39
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/3136 , G11B5/3967 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A head-slider. The head-slider includes a slider, and a thin-film magnetic-recording head. The thin-film magnetic-recording head includes: a read element; a write element; a non-magnetic insulating protective layer disposed around both read and write elements; a resist disposed at a position further away from an air-bearing surface than the read element; and, a hard-material member including a material selected from the group consisting of silicon carbide and tungsten, which is disposed at a position further away from the air-bearing surface than the read element and the write element. Both an end of the resist and an end of the hard-material member overlap the write element when viewed in a stacking direction. A ratio of a distance from the air-bearing surface to a deepest end of the hard-material member to a distance from the air-bearing surface to a deepest end of the resist is at least 0.9.
摘要翻译：头滑块。磁头滑动器包括滑块和薄膜磁记录头。薄膜磁记录头包括：读取元件; 写元素设置在读取和写入元件周围的非磁性绝缘保护层; 设置在远离所述读取元件的空气轴承表面的位置处的抗蚀剂; 以及包括选自碳化硅和钨的材料的硬质材料构件，其被设置在比读取元件和写入元件更远离空气轴承表面的位置处。当在堆叠方向上观察时，抗蚀剂的一端和硬质材料构件的一端与写入元件重叠。从空气轴承表面到硬质材料构件的最深端的距离与从空气轴承表面到抗蚀剂的最深端的距离的比率至少为0.9。

2. 发明申请

US20110116192A1 HEAD-SLIDER INCLUDING THIN-FILM MAGNETIC-RECORDING HEAD HAVING REDUCED THERMAL PROTRUSION 有权
标题翻译：包括具有减少热导率的薄膜磁记录头的头部滑盖
公开(公告)号：US20110116192A1
公开(公告)日：2011-05-19
申请号：US12642739
申请日：2009-12-18
申请人： Shigeo FUJITA , Masahiko Soga , Hideaki Tanaka , Yuji Ueda , Tomohiro Okada , Takayoshi Ohtsu , Wataru Kimura , Yohji Maruyama
发明人： Shigeo FUJITA , Masahiko Soga , Hideaki Tanaka , Yuji Ueda , Tomohiro Okada , Takayoshi Ohtsu , Wataru Kimura , Yohji Maruyama
IPC分类号： G11B5/60
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/3136 , G11B5/3967 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A head-slider. The head-slider includes a slider, and a thin-film magnetic-recording head. The thin-film magnetic-recording head includes: a read element; a write element; a non-magnetic insulating protective layer disposed around both read and write elements; a resist disposed at a position further away from an air-bearing surface than the read element; and, a hard-material member including a material selected from the group consisting of silicon carbide and tungsten, which is disposed at a position further away from the air-bearing surface than the read element and the write element. Both an end of the resist and an end of the hard-material member overlap the write element when viewed in a stacking direction. A ratio of a distance from the air-bearing surface to a deepest end of the hard-material member to a distance from the air-bearing surface to a deepest end of the resist is at least 0.9.
摘要翻译：头滑块。磁头滑动器包括滑块和薄膜磁记录头。薄膜磁记录头包括：读取元件; 写元素设置在读取和写入元件周围的非磁性绝缘保护层; 设置在远离所述读取元件的空气轴承表面的位置处的抗蚀剂; 以及包括选自碳化硅和钨的材料的硬质材料构件，其被设置在比读取元件和写入元件更远离空气轴承表面的位置处。当在堆叠方向上观察时，抗蚀剂的一端和硬质材料构件的一端与写入元件重叠。从空气轴承表面到硬质材料构件的最深端的距离与从空气轴承表面到抗蚀剂的最深端的距离的比率至少为0.9。

3. 发明授权

US06091582A Thin film magnetic recording head with very narrow track width performing high density recording at high driving frequency 失效
标题翻译：具有非常窄轨道宽度的薄膜磁记录头在高驱动频率下执行高密度记录
公开(公告)号：US06091582A
公开(公告)日：2000-07-18
申请号：US48985
申请日：1998-03-27
申请人： Matahiro Komuro , Tomohiro Okada , Moriaki Fuyama , Tetsuo Ito , Hiroshi Fukui , Yohji Maruyama , Miki Hara , Hisashi Takano
发明人： Matahiro Komuro , Tomohiro Okada , Moriaki Fuyama , Tetsuo Ito , Hiroshi Fukui , Yohji Maruyama , Miki Hara , Hisashi Takano
IPC分类号： G11B5/012 , G11B5/31 , G11B5/39 , G11B5/147 , G11B5/23
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/313 , G11B5/3143 , G11B5/3967 , G11B2005/3996 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： A thin film magnetic head is providing for recording with less blur having a high recording magnetic field, for use in a recording/reproduction separation type magnetic head and a magnetic recording/reproducing apparatus. The thin film magnetic head, in which a gap film of a recording head and a magnetic film in contact with the gap film have the same track width, includes an upper magnetic film of the recording head and an upper shield film of a magnetic resistive film, each having a width wider than the track width, and a cross section parallel to the air bearing surface of the upper magnetic film is reduced at a position less than a gap depth from the air bearing surface. The thin film magnetic head has a coil conductor sandwiched by a first magnetic film and a fourth magnetic film, a second magnetic body magnetically connected to the first magnetic film, a third magnetic body magnetically connected to the fourth magnetic film, and a magnetic gap sandwiched by the second and third magnetic films, in which an insulating and non-magnetic single film in contact with the second and third magnetic films covers at least the first magnetic film.
摘要翻译：薄膜磁头提供用于具有高记录磁场的较少模糊的记录，用于记录/再现分离型磁头和磁记录/再现装置。其中记录头的间隙膜和与间隙膜接触的磁性膜具有相同的轨道宽度的薄膜磁头包括记录头的上部磁性膜和磁性电阻膜的上部屏蔽膜各自具有比轨道宽度宽的宽度，并且平行于上部磁性膜的空气支承表面的横截面在比空气轴承表面小于间隙深度的位置处减小。薄膜磁头具有由第一磁性膜和第四磁性膜夹持的线圈导体，与第一磁性膜磁性连接的第二磁性体，与第四磁性膜磁性连接的第三磁性体和夹在通过第二和第三磁性膜，其中与第二和第三磁性膜接触的绝缘和非磁性单膜至少覆盖第一磁性膜。

4. 发明授权

US06530141B2 Method of forming thin film magnetic recording head with narrow track width performing high density recording at high driving frequency 有权
标题翻译：在高驱动频率下形成具有窄轨迹宽度的高密度记录的薄膜磁记录头的方法
公开(公告)号：US06530141B2
公开(公告)日：2003-03-11
申请号：US09879974
申请日：2001-06-14
申请人： Matahiro Komuro , Tomohiro Okada , Moriaki Fuyama , Tetsuo Ito , Hiroshi Fukui , Yohji Maruyama , Miki Hara , Hisashi Takano
发明人： Matahiro Komuro , Tomohiro Okada , Moriaki Fuyama , Tetsuo Ito , Hiroshi Fukui , Yohji Maruyama , Miki Hara , Hisashi Takano
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/313 , G11B5/3143 , G11B5/3967 , G11B2005/3996 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： A method of forming a thin film magnetic head, including forming a first magnetic layer, forming a second magnetic layer as a magnetic flux passage in combination with the first magnetic layer, and forming a laminate structure body between the first magnetic layer and the second magnetic layer. The forming of the laminate structure body includes forming a third magnetic layer, a fourth magnetic layer and a non-magnetic conductive layer between the third magnetic layer and the fourth magnetic layer, projecting the laminate structure body more toward an air bearing surface than a projection of the first magnetic layer and the second magnetic layer toward the air bearing surface, and providing the laminate structure body with a width which is smaller than a width of the first magnetic layer and the second magnetic layer.
摘要翻译：一种形成薄膜磁头的方法，包括形成第一磁性层，与第一磁性层组合形成作为磁通量通道的第二磁性层，以及在第一磁性层和第二磁性层之间形成层叠结构体层。层压结构体的形成包括在第三磁性层和第四磁性层之间形成第三磁性层，第四磁性层和非磁性导电层，使叠层结构体朝向空气轴承表面突出地突出，的第一磁性层和第二磁性层朝向空气轴承表面，并且为层叠结构体提供的宽度小于第一磁性层和第二磁性层的宽度。

5. 发明授权

US06034847A Apparatus and thin film magnetic head with magnetic membrane layers of different resistivity 失效
标题翻译：具有不同电阻率的磁膜层的设备和薄膜磁头
公开(公告)号：US06034847A
公开(公告)日：2000-03-07
申请号：US992089
申请日：1997-12-17
申请人： Matahiro Komuro , Tomohiro Okada , Masaaki Sano , Moriaki Fuyama , Hiroshi Fukui , Katsumi Hoshino , Takashi Kawabe , Yohji Maruyama , Atsushi Nakamura , Miki Hara , Noboru Shimizu , Noboru Yoshida
发明人： Matahiro Komuro , Tomohiro Okada , Masaaki Sano , Moriaki Fuyama , Hiroshi Fukui , Katsumi Hoshino , Takashi Kawabe , Yohji Maruyama , Atsushi Nakamura , Miki Hara , Noboru Shimizu , Noboru Yoshida
IPC分类号： G11B5/31 , G11B5/39 , G11B5/60 , G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/312 , G11B5/3967 , G11B5/6005 , G11B2005/3996
摘要： In order to prevent degradation of the recording performance during radio frequency recording, and to provide a thin film magnetic head and a recording reproducing sectional pattern magnetic head which has a magnetic pole width less than 2 .mu.m and an ultra high density magnetic storage apparatus of 10 Gb/ in.sup.2 grade, a recording head is provided in which a lower part magnetic film serves as a shielding film of a reproducing selection, a non magnetic gap film is formed during formation of the upper part magnetic film and the lower part magnetic film, one part of the lower part magnetic film or the upper part magnetic film has a higher resistivity of more than 80 .mu..OMEGA.cm than other parts, the upper part magnetic film is formed by flame galvanizing, and a gap section of the lower part magnetic film or the upper part magnetic film has a convex shape.
摘要翻译：为了防止在射频记录期间的记录性能的劣化，并且提供具有小于2μm的磁极宽度的薄膜磁头和记录再现部分图形磁头和超高密度磁存储装置 10Gb / in2级，提供了一种记录头，其中下部磁性膜用作再现选择的屏蔽膜，在形成上部磁性膜和下部磁性膜期间形成非磁隙膜，下部磁性膜或上部磁性膜的一部分比其他部分具有高于80μm欧米伽cm的电阻率，上部磁性膜通过火焰镀锌形成，下部磁性膜的间隙部分或上部磁性膜具有凸形状。

6. 发明授权

US07755864B2 Magnetic recording head for perpendicular recording, fabrication process, and magnetic disk storage apparatus mounting the magnetic recording head 失效
标题翻译：用于垂直记录的磁记录头，制造过程和安装磁记录头的磁盘存储装置
公开(公告)号：US07755864B2
公开(公告)日：2010-07-13
申请号：US11259693
申请日：2005-10-25
申请人： Atsushi Kato , Tomohiro Okada , Masahiko Soga
发明人： Atsushi Kato , Tomohiro Okada , Masahiko Soga
IPC分类号： G11B5/48
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/312 , G11B5/3163 , G11B5/4853
摘要： Embodiments of the invention provide a head which can prevent an external magnetic field form erasing a signal on the medium and whose main magnetic pole piece does not corrode during processing of the air bearing surface. In one embodiment, an anti-corrosion electrode is formed to apply a voltage to the main magnetic pole piece during processing of the air bearing surface. This retards corrosion of the main magnetic pole piece. Since a conductor (anti-corrosion wire) connected to this anti-corrosion electrode is made of a nonmagnetic material, concentration of an external magnetic field into the main magnetic pole piece can be suppressed. Consequently, since the magnetic leakage field emitted from the main magnetic pole piece is reduced, erasure of the signal on the medium can be prevented. In addition, since the anti-corrosion wire is connected to the upper core, this wire can be formed in the same wiring layer as a wire which connects the coil to a write terminal, resulting in a simplified manufacturing process.
摘要翻译：本发明的实施例提供了一种头部，其可以防止外部磁场形式擦除介质上的信号，并且其主磁极片在空气轴承表面的加工期间不被腐蚀。在一个实施例中，形成防腐电极，以在空气轴承表面的加工期间向主磁极片施加电压。这阻碍了主磁极片的腐蚀。由于与该防腐蚀电极连接的导体（防腐蚀丝）由非磁性材料构成，因此能够抑制外部磁场向主磁极片的集中。因此，由于从主磁极片发出的磁泄漏场减少，因此可以防止介质上的信号的擦除。此外，由于防腐蚀线与上芯连接，所以该导线可以形成在与将线圈连接到写入端子的导线相同的布线层中，从而简化了制造工艺。

7. 发明申请

US20060087770A1 Magnetic recording head for perpendicular recording, fabrication process, and magnetic disk storage apparatus mounting the magnetic recording head 失效
标题翻译：用于垂直记录的磁记录头，制造过程和安装磁记录头的磁盘存储装置
公开(公告)号：US20060087770A1
公开(公告)日：2006-04-27
申请号：US11259693
申请日：2005-10-25
申请人： Atsushi Kato , Tomohiro Okada , Masahiko Soga
发明人： Atsushi Kato , Tomohiro Okada , Masahiko Soga
IPC分类号： G11B5/60
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/312 , G11B5/3163 , G11B5/4853
摘要： Embodiments of the invention provide a head which can prevent an external magnetic field form erasing a signal on the medium and whose main magnetic pole piece does not corrode during processing of the air bearing surface. In one embodiment, an anti-corrosion electrode is formed to apply a voltage to the main magnetic pole piece during processing of the air bearing surface. This retards corrosion of the main magnetic pole piece. Since a conductor (anti-corrosion wire) connected to this anti-corrosion electrode is made of a nonmagnetic material, concentration of an external magnetic field into the main magnetic pole piece can be suppressed. Consequently, since the magnetic leakage field emitted from the main magnetic pole piece is reduced, erasure of the signal on the medium can be prevented. In addition, since the anti-corrosion wire is connected to the upper core, this wire can be formed in the same wiring layer as a wire which connects the coil to a write terminal, resulting in a simplified manufacturing process.
摘要翻译：本发明的实施例提供了一种头部，其可以防止外部磁场形式擦除介质上的信号，并且其主磁极片在空气轴承表面的加工期间不被腐蚀。在一个实施例中，形成防腐电极，以在空气轴承表面的加工期间向主磁极片施加电压。这阻碍了主磁极片的腐蚀。由于与该防腐蚀电极连接的导体（防腐蚀丝）由非磁性材料构成，因此能够抑制外部磁场向主磁极片的集中。因此，由于从主磁极片发出的磁泄漏场减少，因此可以防止介质上的信号的擦除。此外，由于防腐蚀线与上芯连接，所以该导线可以形成在与将线圈连接到写入端子的导线相同的布线层中，从而简化了制造工艺。

8. 发明申请

US20060221497A1 Perpendicular magnetic recording head and method for production thereof 失效
标题翻译：垂直磁记录头及其制造方法
公开(公告)号：US20060221497A1
公开(公告)日：2006-10-05
申请号：US11389216
申请日：2006-03-24
申请人： Tomohiro Okada , Masafumi Mochizuki , Hisashi Kimura , Wataru Kimura
发明人： Tomohiro Okada , Masafumi Mochizuki , Hisashi Kimura , Wataru Kimura
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315
摘要： Embodiments of the invention provide a perpendicular magnetic recording head that causes the difference between a physical track width and an effective track width to be small. Sides of a main pole are made concave with the concave vertex on each side located close to a trailing edge of the main pole.
摘要翻译：本发明的实施例提供一种使物理轨道宽度和有效轨道宽度之间的差小的垂直磁记录头。主极的侧面被制成凹面，每个侧面上的凹顶点靠近主极的后缘。

9. 发明授权

US08270111B2 Perpendicular magnetic recording head 失效
标题翻译：垂直磁记录头
公开(公告)号：US08270111B2
公开(公告)日：2012-09-18
申请号：US11389216
申请日：2006-03-24
申请人： Tomohiro Okada , Masafumi Mochizuki , Hisashi Kimura , Wataru Kimura
发明人： Tomohiro Okada , Masafumi Mochizuki , Hisashi Kimura , Wataru Kimura
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315
摘要： Embodiments of the invention provide a perpendicular magnetic recording head that causes the difference between a physical track width and an effective track width to be small. Sides of a main pole are made concave with the concave vertex on each side located close to a trailing edge of the main pole.
摘要翻译：本发明的实施例提供一种使物理轨道宽度和有效轨道宽度之间的差小的垂直磁记录头。主极的侧面被制成凹面，每个侧面上的凹顶点靠近主极的后缘。

10. 发明申请

US20090073608A1 Perpendicular magnetic recording head 审中-公开
标题翻译：垂直磁记录头
公开(公告)号：US20090073608A1
公开(公告)日：2009-03-19
申请号：US12229561
申请日：2008-08-22
申请人： Norihiro Ookawa , Atsushi Kato , Makoto Morijiri , Tomohiro Okada , Wataru Kimura
发明人： Norihiro Ookawa , Atsushi Kato , Makoto Morijiri , Tomohiro Okada , Wataru Kimura
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/147
摘要： Embodiments of the present invention provide a perpendicular magnetic recording head suitable for high density recording that suppresses erasure after recording by reducing the remanent magnetization Mr of the main magnetic pole and thereby decreasing the squareness S. Accordingly to one embodiment, a main magnetic pole piece of a perpendicular magnetic recording head includes a FeCo ferromagnetic layer, into which a NiFe soft magnetic layer is inserted. Inserting the NiFe soft magnetic layer in a position in the FeCo ferromagnetic layer 1 to 7 mm away from a nonmagnetic layer allows a remanent magnetization Mr to be decreased without changing the number of layers of the nonmagnetic layer or a film thickness of the FeCo ferromagnetic layer. This helps suppress erasure after recording.
摘要翻译：本发明的实施例提供一种适用于高密度记录的垂直磁记录头，其通过降低主磁极的剩余磁化强度Mr而减小记录后的擦除，从而减小矩形度S.因此，在一个实施例中，主磁极片垂直磁记录头包括FeCo铁磁层，NiFe软磁性层插入其中。将NiFe软磁性层插入距离非磁性层1至7mm的FeCo铁磁层中的位置，可以在不改变非磁性层的层数或FeCo铁磁层的膜厚的情况下，使剩余磁化强度降低。这有助于在录制后抑制擦除。

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