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1.发明授权
公开(公告)号：US4672496A
公开(公告)日：1987-06-09
申请号：US400596
申请日：1982-07-22
申请人： Kenji Kanai , Nobuyuki Kaminaka , Noboru Nomura , Yuuji Omata
发明人： Kenji Kanai , Nobuyuki Kaminaka , Noboru Nomura , Yuuji Omata
CPC分类号： G11B5/4907 , G11B5/1278
摘要： A thin magnetic film is deposited over a nonmagnetic or piezoelectric substrate. When a shock wave is propagated through this substrate from its one end to the other end, the permeability of the thin magnetic film is locally increased and a portion or region having a high permeability also travels from one end to the other end of the thin magnetic film in unison with the shock wave. A magnetic core with a signal winding is disposed and magnetically coupled with the thin magnetic film. The signal can be recorded or reproduced while the recording medium is scanned.
摘要翻译： 薄磁膜沉积在非磁性或压电衬底上。 当冲击波从其一端传播到另一端时，薄磁性膜的磁导率局部增加，并且具有高磁导率的部分或区域也从薄磁体的一端到另一端传播 电影与冲击波一致。 具有信号绕组的磁芯被设置并与薄磁膜磁耦合。 可以在扫描记录介质时记录或再现信号。
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公开(公告)号：US4477794A
公开(公告)日：1984-10-16
申请号：US406894
申请日：1982-08-10
申请人： Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Yuji Omata
发明人： Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Yuji Omata
CPC分类号： G11B5/3903 , H01L43/08
摘要： The invention provides a magnetoresistive element which magnetostatically has magnetic anisotropy to control a domain structure and which eliminates Barkhousen noise that will cause abrupt movement of domain walls and irregular magnetization due to a change in the signal magnetic field, wherein a grating pattern is formed on at least one surface of a magnetoresistive film by a process in which a grating pattern is unidirectionally formed on the surface of a substrate and the magnetoresistive film of a ferromagnetic body is deposited thereon. Further, various magnetoresistive elements to which a novel bias method is applied are provided.
摘要翻译： 本发明提供一种磁阻元件，其磁静态地具有磁各向异性以控制畴结构，并且消除了由于信号磁场的变化引起的畴壁突然移动和不规则磁化的巴克霍森噪声，其中光栅图案形成在 通过在基板的表面上单向形成光栅图案并且在其上沉积铁磁体的磁阻膜的工艺，形成磁阻膜的至少一个表面。 此外，提供了应用了新的偏置方法的各种磁阻元件。
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公开(公告)号：US4068272A
公开(公告)日：1978-01-10
申请号：US632761
申请日：1975-11-17
申请人： Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi , Noboru Nomura
发明人： Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi , Noboru Nomura
CPC分类号： G11B5/3925 , G11B5/3903 , G11B5/3977 , G11B5/398
摘要： This invention provides a high sensitivity magnetic head using magneto-resistive effect elements consisting of ferromagnetic thin plates and allows construction of a high precision multi-track head by using thin film and photo-etching techniques. The magnetic head comprises a base, two flux converging cores forming a magnetic gap, a detecting portion provided between the two flux converging cores and extending at right angles to the end of the base, one end of the detecting portion being located in the neighborhood of the gap and having a smaller sectional area than the other portions, and detecting electrodes provided at the opposite ends of the detecting portion. At least one of the two cores is of a ferromagnetic material and integrally formed on the base.
摘要翻译： 本发明提供了使用由铁磁薄板构成的磁阻效应元件的高灵敏度磁头，并且通过使用薄膜和光蚀刻技术来构造高精度多轨头。 磁头包括基座，形成磁隙的两个磁通会聚磁芯，设置在两个磁通会聚磁芯之间并与基座的端部成直角延伸的检测部分，检测部分的一端位于 所述间隙具有比其他部分更小的截面面积，以及设置在所述检测部分的相对端的检测电极。 两个芯中的至少一个是铁磁材料并且一体地形成在基部上。
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公开(公告)号：US4354212A
公开(公告)日：1982-10-12
申请号：US166808
申请日：1980-07-08
申请人： Norimoto Nouchi , Kenji Kanai , Nobuyuki Kaminaka , Noboru Nomura
发明人： Norimoto Nouchi , Kenji Kanai , Nobuyuki Kaminaka , Noboru Nomura
CPC分类号： G11B5/3932
摘要： A magnetic head and a production method therefore in which permanent magnet films for applying a DC bias magnetic field Hd h to a magnetoresistive effect element film (MR element film) is arranged on both sides of the thickness dimension of the MR element film through at least a non-magnetic film therebetween. In making the MR element film thicker in order to reduce distortion, the DC bias magnetic field Hd b to be applied to the MR element film is also required to be increased. Unlike the prior art in which the above-mentioned requirement is met by increasing the thickness of the permanent magnet film under the thickness of the MR element film resulting in the problem of breakage of a film member above or under the thickness of the permanent magnet film, the invention further comprises a second permanent magnet film above the thickness of the MR element film without increasing the thickness of the first permanent magnet film. In the case of a magnetic head with a shield members of soft magnetic material holding the MR element film from both sides of the thickness thereof, the MR element film is made thicker to make reproduction possible without any distortion or without substantially increasing the gap. For this purpose, the MR element film is held on the sides above and under the thickness thereof by first and second permanent magnet films which in turn are held by the shield members. To minimize distribution of the MR element film, a comparatively high-temperature process after forming of the MR element film i.e., forming of the second permanent magnet film is effected at optimum temperature, and a magnetic field is applied along the magnetic easy axis of the MR element film.
摘要翻译： 因此，磁头及其制造方法，其中用于将DC偏置磁场Hd h施加到磁阻效应元件膜（MR元件膜）的永磁体膜至少布置在MR元件膜的厚度尺寸的两侧 它们之间的非磁性膜。 为了使MR元件膜变厚以减少畸变，还需要增加施加到MR元件膜的DC偏置磁场Hd b。 不同于通过在MR元件膜的厚度下增加永磁体膜的厚度来满足上述要求的现有技术，导致膜构件在永磁体膜的厚度以上或以下的厚度的断裂的问题 本发明还包括在MR元件膜的厚度之上的第二永磁体膜，而不增加第一永磁体膜的厚度。 在具有从其厚度的两侧保持MR元件膜的软磁材料的屏蔽构件的磁头的情况下，将MR元件膜制成更厚以使得再现成为可能而没有任何变形或基本上不增加间隙。 为此，MR元件膜通过第一和第二永磁体膜保持在其厚度的上方和下方，该永磁体膜又由屏蔽部件保持。 为了最小化MR元件膜的分布，在形成MR元件膜之后进行比较高温处理，即形成第二永久磁铁膜，在最佳温度下进行，沿着磁性容易轴施加磁场 MR元件膜。
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公开(公告)号：US4072993A
公开(公告)日：1978-02-07
申请号：US629981
申请日：1975-11-07
申请人： Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi
发明人： Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi
CPC分类号： G11B5/17 , G11B5/31 , G11B5/313 , H01L25/10 , H01L2924/0002
摘要： A multi-element magnetic head having a plurality of magnetic heads, in which a common electrode common to the coils of the individual heads is provided. By this construction the number of electrodes is reduced and also the area required for contact between leads from an external circuit and electrodes are reduced. Thus, it is made possible to reduce the head pitch of the magnetic heads.
摘要翻译： 一种具有多个磁头的多元件磁头，其中设置有各个磁头的线圈共用的公共电极。 通过这种结构，电极的数量减少，并且还减少了来自外部电路和电极的引线之间接触所需的面积。 因此，可以减小磁头的磁头间距。
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公开(公告)号：US4422117A
公开(公告)日：1983-12-20
申请号：US254662
申请日：1981-04-16
申请人： Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi
发明人： Noboru Nomura , Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi
CPC分类号： G11B5/3903 , G11B5/3106 , G11B5/3163
摘要： A thin film magnetic head has a substrate with thin film layers deposited thereon and a protector layer bonded by a bonding layer to the substrate, with the thin film layers interposed therebetween. The thin film layers includes components of an electromagnetic transducing means. The bonding layer is a glass having a working temperature at which a magnetic layer included in the thin film layers does not have the magnetic characteristics deteriorated to any substantial degree.The fusing of the glass for making the bonding layer is performed at a temperature below 450.degree. C.
摘要翻译： 薄膜磁头具有沉积有薄膜层的基板和通过粘结层粘合到基板上的保护层，其间插入有薄膜层。 薄膜层包括电磁换能装置的部件。 接合层是具有工作温度的玻璃，其中包括在薄膜层中的磁性层的磁特性不会在任何程度上劣化。 用于制造粘合层的玻璃的熔合在450℃以下进行。
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公开(公告)号：US4409632A
公开(公告)日：1983-10-11
申请号：US208480
申请日：1980-11-19
申请人： Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi , Noboru Nomura
发明人： Kenji Kanai , Nobuyuki Kaminaka , Norimoto Nouchi , Noboru Nomura
CPC分类号： G11B5/313
摘要： A magnetic head arrangement includes a spiral coil made of a thin layer and having a central opening. The spiral coil is deposited on a first layer of magnetic material in an electrically insulated manner. The arrangement further includes a second layer of magnetic material having a width wider than that of the central opening of the spiral coil and deposited on the spiral coil in an electrically insulated manner. A portion of the second layer located in the central opening of the spiral coil is magnetically connected with the first layer and another portion of the second layer located outside the spiral coil is held above the first layer to form a predetermined gap.
摘要翻译： 磁头装置包括由薄层制成并具有中心开口的螺旋线圈。 螺旋线圈以电绝缘方式沉积在第一层磁性材料上。 该装置还包括第二层磁性材料，其宽度大于螺旋线圈中心开口的宽度，并以电绝缘方式沉积在螺旋线圈上。 位于螺旋线圈的中心开口中的第二层的一部分与第一层磁性连接，位于螺旋线圈外部的第二层的另一部分被保持在第一层上方以形成预定间隙。
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公开(公告)号：US4246620A
公开(公告)日：1981-01-20
申请号：US8335
申请日：1979-01-31
申请人： Nobuyuki Kaminaka , Kenji Kanai , Norimoto Nouchi , Noboru Nomura
发明人： Nobuyuki Kaminaka , Kenji Kanai , Norimoto Nouchi , Noboru Nomura
CPC分类号： G11B5/3103 , G11B5/3133 , Y10T29/49044 , Y10T29/49062
摘要： A thin film magnetic head having a contact surface which, when such magnetic head is in use, slidingly contacts a magnetic information carrier, such as a magnetic tape, drum or disc, for the information recording or reproduction. The magnetic head comprises a support substrate on which a thin magnetic layer and a non-magnetic layer are deposited in side-by-side relation to each other. The non-magnetic insulating layer has a wear resistance equal to or higher than that of the thin magnetic layer. A method for the manufacture of the thin film magnetic head is also disclosed.
摘要翻译： 一种具有接触表面的薄膜磁头，当这种磁头在使用中时，它可滑动地接触诸如磁带，鼓或盘之类的磁信息载体，用于信息记录或再现。 磁头包括支撑基板，薄壁磁性层和非磁性层彼此并排地沉积在支撑基板上。 非磁性绝缘层的耐磨性等于或高于薄磁性层的耐磨性。 还公开了制造薄膜磁头的方法。
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公开(公告)号：US4127884A
公开(公告)日：1978-11-28
申请号：US782247
申请日：1977-03-28
申请人： Norimoto Nouchi , Kenji Kanai , Nobuyuki Kaminaka , Noboru Nomura
发明人： Norimoto Nouchi , Kenji Kanai , Nobuyuki Kaminaka , Noboru Nomura
CPC分类号： G11B5/3903 , G11B5/31 , Y10S428/90
摘要： A thin film type magnetic head, in which a conductor is accommodated within a groove formed in part of a ferromagnetic substrate constituting part of a magnetic core, and a ferromagnetic film is disposed on the conductor to constitute part of the magnetic core. With this structure, it is possible to reduce the number of steps of layers constituting the magnetic head for reducing damage or breakage of the stepped portions of the layers and also increase the core gap in a central part of the core so as to reduce leakage flux even in the thin film magnetic head as well as bettering dissipation of Joule heat produced in the conductor.
摘要翻译： 导体容纳在形成在构成磁芯的一部分的铁磁性基板的一部分的槽内的铁磁型磁头和铁磁性膜，构成磁芯的一部分。 利用这种结构，可以减少构成磁头的层数，以减少层的阶梯部分的损伤或断裂，并且还增加芯的中心部分的芯间隙，以便减少漏磁通 即使在薄膜磁头中，以及导体中产生的焦耳热的消散也更好。
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公开(公告)号：US4071868A
公开(公告)日：1978-01-31
申请号：US641185
申请日：1975-12-16
申请人： Nobuyuki Kaminaka , Kenji Kanai , Norimoto Nouchi , Noboru Nomura
发明人： Nobuyuki Kaminaka , Kenji Kanai , Norimoto Nouchi , Noboru Nomura
CPC分类号： G11B5/3903 , G11B5/11
摘要： A magnetic head consists of a magnetic flux converging core having a magnetic gap and a magnetoresistive effect element which forms a magnetic circuit and which is arranged in the same plane as the magnetic gap. The direction of thickness of the magnetic circuit is aligned with the direction of width of a track of a record medium, and shielding plates of ferromagnetic material are arranged on both sides of the plane.
摘要翻译： 磁头由具有磁隙的磁通收敛芯和磁阻效应元件组成，磁阻效应元件形成磁路并且被布置在与磁隙相同的平面中。 磁路的厚度方向与记录介质的轨道的宽度方向一致，铁磁材料的屏蔽板布置在平面的两侧。
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