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1. 发明授权

US06282067B1 Magnetic reproducing head having a magnetoresistive effect 失效
标题翻译：磁复制磁头具有磁阻效应
公开(公告)号：US06282067B1
公开(公告)日：2001-08-28
申请号：US09399747
申请日：1999-09-20
申请人： Kenji Machida , Naoto Hayashi , Yoshiro Yoneda , Junji Numazawa , Makiko Kohro , Takahisa Tanabe , Shinichi Nagahara
发明人： Kenji Machida , Naoto Hayashi , Yoshiro Yoneda , Junji Numazawa , Makiko Kohro , Takahisa Tanabe , Shinichi Nagahara
IPC分类号： G11B539
CPC分类号： B82Y10/00 , G11B5/3961 , G11B5/3977 , G11B5/4886 , G11B5/4893 , G11B5/4969 , G11B2005/0016
摘要： A magnetoresistive effect element 5 is physically configured such that the element width is at least three times as large as the element height. A plurality of domain control layers 11 to 13 are located between the magnetoresistive effect element 5 and a plurality of detecting electrodes 8 to 10 in a state that the domain control layers 11 to 13 are closely formed on the magnetoresistive effect element 5. Each of the domain control layers 11 to 13 applies a unidirectional magnetic field to a region of the magnetoresistive effect element 5 vertically disposed in a guard band of the magnetic recording medium 4, the guard band having no information recorded therein. The unidirectional magnetic field is directed in an orientation of an initial magnetization in a single magnetoresistive effect element, the orientation of which depends on a direction of on an easy axis of the magnetoresistive effect element 5.
摘要翻译：物理地构造磁阻效应元件5，使得元件宽度是元件高度的至少三倍。多个畴控制层11至13位于磁阻效应元件5和多个检测电极8至10之间，其中域控制层11至13紧密地形成在磁阻效应元件5上。各个域控制层11至13将垂直设置在磁记录介质4的保护带中的磁阻效应元件5的区域施加单向磁场，保护带没有记录信息。单向磁场被定向在单个磁阻效应元件中的初始磁化取向，其取向取决于磁阻效应元件5的容易轴上的方向。

2. 发明授权

US06538855B1 Magneto-resistive thin film magnetic head preventing entry of unnecessary magnetic flux and having good reproduction characteristics 失效
标题翻译：磁阻薄膜磁头防止不必要的磁通进入并具有良好的再生特性
公开(公告)号：US06538855B1
公开(公告)日：2003-03-25
申请号：US09717668
申请日：2000-11-21
申请人： Akira Nakamura , Morio Kondo , Norio Hasegawa , Yasuhiko Shinjo , Kenji Machida , Naoto Hayashi , Kazutoshi Mutou , Toshihiro Uehara , Junji Numazawa
发明人： Akira Nakamura , Morio Kondo , Norio Hasegawa , Yasuhiko Shinjo , Kenji Machida , Naoto Hayashi , Kazutoshi Mutou , Toshihiro Uehara , Junji Numazawa
IPC分类号： G11B539
CPC分类号： G11B5/3925 , G11B5/11 , G11B5/3146
摘要： A magneto-resistive thin film magnetic head is provided, which magnetic head includes: a base; a first yoke provided on the base and separated by a gap into first and second portions, the first portion including a side which opposes a magnetic recording medium; a magneto-resistive element which is magnetically coupled to the first and second portions of the first yoke and detects a magnetic recording signal; a second yoke formed on the first yoke so as to form a reproducing head gap between the first portion of the first yoke and the second yoke; and a third yoke provided between the first portion of the first yoke and the base so as to be magnetically coupled to the first portion of the first yoke. The reproducing head gap, the first portion of the first yoke, the magneto-resistive element, the second portion of the first yoke, ad the second yoke form a cut magnetic circuit.
摘要翻译：提供一种磁阻薄膜磁头，该磁头包括：基座; 设置在基座上并由间隙分隔成第一和第二部分的第一磁轭，第一部分包括与磁记录介质相对的一侧; 磁阻元件，其磁耦合到第一磁轭的第一和第二部分，并检测磁记录信号; 形成在第一磁轭上的第二磁轭，以在第一磁轭的第一部分和第二磁轭之间形成再现磁头间隙; 以及设置在第一磁轭的第一部分和基座之间的第三磁轭，以便磁耦合到第一磁轭的第一部分。再现磁头间隙，第一磁轭的第一部分，磁阻元件，第一磁轭的第二部分，第二磁轭形成切割磁路。

3. 发明授权

US06859342B1 Magnetic head device with a short auxiliary member 失效
标题翻译：具有短辅助构件的磁头装置
公开(公告)号：US06859342B1
公开(公告)日：2005-02-22
申请号：US09504964
申请日：2000-02-16
申请人： Yasuhiko Shinjo , Morio Kondo , Akira Nakamura , Toshihiro Uehara , Naoto Hayashi , Kazutoshi Mutou , Kenji Machida , Junji Numazawa
发明人： Yasuhiko Shinjo , Morio Kondo , Akira Nakamura , Toshihiro Uehara , Naoto Hayashi , Kazutoshi Mutou , Kenji Machida , Junji Numazawa
IPC分类号： G11B5/39 , G11B5/58 , G11B5/187
CPC分类号： G11B5/581
摘要： A magnetic head device having excellent sliding contact between its slider surface and magnetic tape at the time of scanning is provided. This magnetic head device has a base member, a thin-film magnetic head formed in contact with the base member and accommodated in a non-magnetic layer with the top end of a magnetic gap being exposed, and an auxiliary member which sandwiches the non-magnetic layer between the auxiliary member and the base member. On the top ends of the base member, the non-magnetic layer, and the auxiliary member, a slider surface on which magnetic tape slides is formed in the aligning direction of the base member, the non-magnetic layer, and the auxiliary member, or in a direction inclined at a predetermined angle to the aligning direction. Accordingly, the non-magnetic layer can be made thin, and the area of the non-magnetic layer on the slider surface is small. Thus, the space between the magnetic head device and the magnetic tape can be made small, and the sliding contact of the magnetic head device can be improved.
摘要翻译：提供了一种在扫描时其滑块表面和磁带之间具有优异的滑动接触的磁头装置。该磁头装置具有：基部构件，形成为与基座构件接触并容纳在非磁性层中的薄膜磁头，其中磁隙的顶端被露出;以及辅助构件，辅助构件和基座构件之间的磁性层。在基部构件的顶端，非磁性层和辅助构件上，在基座构件，非磁性层和辅助构件的对准方向上形成有磁带滑动的滑块表面，或者在相对于排列方向以预定角度倾斜的方向上。因此，可以使非磁性层薄，并且滑块表面上的非磁性层的面积小。因此，可以使磁头装置和磁带之间的空间小，并且可以提高磁头装置的滑动接触。

4. 发明授权

US5014148A Perpendicular magnetic recording and reproducing head 失效
标题翻译：垂直磁记录和再现头
公开(公告)号：US5014148A
公开(公告)日：1991-05-07
申请号：US329780
申请日：1989-03-08
申请人： Junji Numazawa , Yoshiro Yoneda , Fusayoshi Aruga
发明人： Junji Numazawa , Yoshiro Yoneda , Fusayoshi Aruga
IPC分类号： G11B5/127
CPC分类号： G11B5/1278
摘要： Improvements in the perpendicular magnetic recording and reproducing head of the type in which a main magnetic pole and an auxiliary magnetic pole are arranged as a unitary structure on one side of a magnetic recording medium. Problems are solved in relation to pseudo pulses in the output signals and change in the level, contributing to improving the sensitivity for recording and reproduction. The magnetic head is used for perpendicular VTR's. The perpendicular magnetic recording and reproducing head of the invention comprises a support block which consists of a main magnetic pole, a non-magnetic block which holds said main magnetic pole to form a surface opposed to the magnetic recording medium, and an auxiliary magnetic pole block which supports part of said main magnetic pole and which supports said non-magnetic block; and a magnetic block provided on the side surface of said support block in the direction of track width. The region opposed to the magnetic recording medium is constitued by the main magnetic pole, non-magnetic block and magnetic block.

5. 发明授权

US5218499A Thin-film magnetic head for perpendicular magnetic recording having a magnetic member with grooves crossing at right angles formed in a principal surface thereof 失效
标题翻译：用于垂直磁记录的薄膜磁头，其具有在其主表面上形成有直角交叉的沟槽的磁性构件
公开(公告)号：US5218499A
公开(公告)日：1993-06-08
申请号：US713107
申请日：1991-06-11
申请人： Toshiaki Wada , Hideki Mine , Junji Numazawa , Naoto Hayashi
发明人： Toshiaki Wada , Hideki Mine , Junji Numazawa , Naoto Hayashi
IPC分类号： G11B5/127
CPC分类号： G11B5/1278
摘要： A thin film magnetic head for perpendicular magnetic recording includes a magnetic member lying on a wear-resistant substrate of a non-magnetic material and defining a return path for magnetic flux. The magnetic member has a main groove formed in one of its principal surfaces in parallel to a sliding surface adapted to face a magnetic recording medium, and a narrow groove formed in the same principal surface and crossing the main groove at right angles thereto. The main and narrow grooves are filled with a non-magnetic material. The magnetic member carries thereon a laminate formed immediately above the intersection of the main and narrow grooves, and consisting at least of a thin-film conductor coil, an interlayer insulating film, a main pole film and a head-protecting film which are formed one upon another. The narrow groove has a width which is larger than that of the main pole film. The magnetic member is connected to the main pole film through a via hole portion. The magnetic member and the laminate have an exposed surface defining the sliding surface, and the magnetic member is exposed in the vicinity of the main pole film.
摘要翻译：用于垂直磁记录的薄膜磁头包括位于非磁性材料的耐磨衬底上并限定用于磁通的返回路径的磁性构件。磁性构件具有形成在其主表面中的一个平行于适于面向磁记录介质的滑动表面的主槽，以及形成在同一主表面上并与其成直角相交的主槽的窄槽。主槽和窄槽填充有非磁性材料。磁性部件承载紧邻主槽和窄沟槽交叉点正上方的层压体，至少由薄膜导体线圈，层间绝缘膜，主极膜和头部保护膜构成，另一个窄槽的宽度大于主极膜的宽度。磁性部件通过通孔部与主极膜连接。磁性构件和层叠体具有限定滑动面的露出面，并且磁性构件暴露在主极膜附近。

6. 发明授权

US5027246A Thin film magnetic head and a method for manufacturing thereof 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US5027246A
公开(公告)日：1991-06-25
申请号：US408492
申请日：1989-03-23
申请人： Junji Numazawa , Fusayoshi Aruga
发明人： Junji Numazawa , Fusayoshi Aruga
IPC分类号： G11B5/127 , G11B5/31 , G11B5/33
CPC分类号： G11B5/3143 , G11B5/1278 , G11B5/31 , G11B5/3116 , G11B5/332
摘要： A thin film magnetic head for use in a running direction with respect to a magnetic recording medium and in which a first magnetic material, a non-magnetic layer, a conductor layer, and a second magnetic material layer which constitute a pair of magnetic poles in cooperation with said first magnetic material layer, are laminated on a non-magnetic substrate, has the conductor layer and the second magnetic material layer formed to be parallel to the running direction. The first magnetic layer is formed to be nonparallel to the running direction in at least an opposed surface area of the head which is to be opposed to a magnetic recording medium. The second magnetic material layer is formed so that it is opposed to the magnetic recording medium at the opposed surface area and so that the second magnetic material layer progressively extends away from the magnetic recording medium in an area of the head which is outside said opposed surface area.
摘要翻译： PCT No.PCT / JP88 / 01338 Sec。 371日期1989年8月23日 102（e）日期1989年8月23日PCT提交1988年12月27日PCT公布。出版物WO89 / 06422 日期：1989年7月13日。一种用于相对于磁记录介质的运行方向的薄膜磁头，其中第一磁性材料，非磁性层，导体层和第二磁性材料层构成与所述第一磁性体层配合的一对磁极，层叠在非磁性基板上，使导体层和第二磁性体层形成为与行进方向平行。在与磁记录介质相对的头部的至少相对的表面区域中，第一磁性层形成为与运行方向不平行。第二磁性材料层被形成为使得其在相对的表面区域处与磁记录介质相对，并且使得第二磁性材料层在位于所述相对表面之外的磁头的区域中逐渐地远离磁记录介质延伸区。

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