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1. 发明专利

JPS5783074A Magneto-resistive effect type thin film magnetic sensor 失效
标题翻译：磁阻效应型薄膜磁传感器
公开(公告)号：JPS5783074A
公开(公告)日：1982-05-24
申请号：JP15882380
申请日：1980-11-13
申请人： Canon Electronics Inc , Canon Inc
发明人： ABIKO SHIYUUZOU , GOTOU HIROICHI , NIIMI AKIRA , TAKAGI HIROTSUGU , SAWADA TAKESHI , YONEDA HIROSHI
IPC分类号： H01L43/08 , G01R33/09
CPC分类号： G01R33/09
摘要： PURPOSE:To improve accuracy for temperature compensation by disposing a permanent magnet in a close contact with a magneto-resistance effect sencor in a compensating region for temperature. CONSTITUTION:A magneto-resistive element 2 in a sensing region and a magneto resistive element 3 in a compensating region for temperature are so arragned that their axes are perpendicular to each other. By a permanent magnet 9 disposed above the element 3 and by a strong magnetic field 10 of the magnet 9 applied on the element 3, a current flowing in the element 3 is confined in a direction 8 far from the axial line. Accordingly with a resistance of the element 3 being kept constant by an external signal magnetic field, a thin film magnetic sensor which has a good temperature compensation and linearity is obtained. Besides when a permanent magnet 11 is formed by thin film deposition method on the magneto resistive element 3 of the temperature compensation region so as to take a same form, a magnetic flux leaking outside is made very low. Besides, when a magnetized direction of the permanent magnet 11 and an axis of easy magnetization of the element 3 are brought into a coincidence, a magnetization direction of the element 3 is stabilized and confined referring to a magnetization signal, and a bias magnetic field is unnecessary for the element 2.
摘要翻译：目的：通过在温度补偿区域中设置与磁阻效应传感器紧密接触的永磁体来提高温度补偿的精度。构成：感测区域中的磁阻元件2和用于温度的补偿区域中的磁阻元件3被定位成使得它们的轴线彼此垂直。通过设置在元件3上方的永磁体9和施加在元件3上的磁体9的强磁场10，流入元件3的电流被限制在远离轴线的方向8上。因此，通过外部信号磁场保持元件3的电阻，得到具有良好的温度补偿和线性的薄膜磁传感器。此外，当通过薄膜沉积方法将永磁体11形成在温度补偿区域的磁阻元件3上以形成相同的形式时，使外部泄漏的磁通非常低。此外，当使永磁体11的磁化方向和元件3的易磁化轴一致时，元件3的磁化方向被稳定并且参照磁化信号进行限制，偏置磁场为不需要元素2。

2. 发明专利

JPS5782224A Magnetic resistance effect type thin film magnetic head 失效
标题翻译：磁阻效应型薄膜磁头
公开(公告)号：JPS5782224A
公开(公告)日：1982-05-22
申请号：JP15584380
申请日：1980-11-07
申请人： Canon Electronics Inc , Canon Inc
发明人： NIIMI AKIRA , TAKAGI HIROTSUGU , SAWADA TAKESHI , YONEDA HIROSHI , ABIKO SHIYUUZOU , GOTOU HIROICHI
IPC分类号： G11B5/127 , G11B5/39
CPC分类号： G11B5/3954 , G11B5/1278
摘要： PURPOSE:To increase the playback output voltage with the increase in the degree of circuit integration at multichannel thin film head and to improve the S/N, by laminating a MR head element in layer through clipping an insulating layer and connecting each layer in series. CONSTITUTION:MR head elements 11-13 are formed via insulation layers 14, 15 at the side of a substrate 10 and at the side of magnetic recording medium sliding surface, conductive layers 16-19 are formed alternately left and right and vertically between the ends of the MR head elements 11-13, and the MR head elements 11-13 are connected in series. The conducting layers 16, 19 play a role of leads and the conductive layers 17, 18 play a role of jumpers. The playback track width can be determined with the windth (l) between the conductive layers 16, 17, and the gap width is determined with the total thickness of the three layers of MR elements 11-13 and two layers of insulation layers 14, 15.
摘要翻译：目的：通过在多通道薄膜磁头上集成电路的程度增加来提高播放输出电压，并提高S / N，通过将绝缘层夹在一层并将每一层串联连接在一起，层叠MR磁头元件。构成：MR头元件11-13通过绝缘层14,15在衬底10的侧面和在磁记录介质滑动表面的侧面上形成，导电层16-19交替地形成在两端之间的左右垂直方向 MR头元件11-13和MR头元件11-13串联连接。导电层16,19发挥引线的作用，并且导电层17,18发挥跳线的作用。可以用导电层16,17之间的风（l）来确定重放轨道宽度，并且间隙宽度由MR层11-13的三层和绝缘层14,15的三层的总厚度确定。

3. 发明专利

JPS5775413A Manufacture of magnetic thin film 失效
标题翻译：磁薄膜的制造
公开(公告)号：JPS5775413A
公开(公告)日：1982-05-12
申请号：JP15064480
申请日：1980-10-29
申请人： Canon Electronics Inc , Canon Inc
发明人： GOTOU HIROICHI , ABIKO SHIYUUZOU , NIIMI KOU , TAKAGI HIROTSUGU , SAWADA TAKESHI , YONEDA HIROSHI
IPC分类号： H01F10/08 , H01F10/32 , H01F41/18
CPC分类号： H01F41/18
摘要： PURPOSE:To stabilize the generation of magnetic field and to form magnetic thin films uniformly and having favorable reproducibility without enlarging the device by a method wherein a current is made to flow in substrates themselves, and magnetic field is made to be generated therewith. CONSTITUTION:Supporting plates 17 are arranged in parallel on a substrate holder 16 being separated for the prescribed interval, substrate pressers 18 to be used both as electrodes are fixed on the right and left sides as to cover the supporting plates 17, and respective adjoining substrate pressers are connected with each other with lead wires 19. Namely they are arranged as to make a current i to flow in the same direction in the conductive substrates 12, 12 being pinched between respective substrate pressers 18, 18. Accordingly magnetic field can be generated in uniform and in stabilized condition, the magnetic thin film can be formed having superior reproducibility, and adhering condition and magnetic characteristic of the magnetic film can be enhanced.
摘要翻译：目的：为了稳定磁场的产生和均匀地形成磁性薄膜，并且具有良好的再现性，而不会通过使电流在衬底本身中流动的方法扩大器件，并且产生磁场。构成：支撑板17平行地布置在分隔规定间隔的基板支架16上，用作电极的基板按压件18固定在左右两侧以覆盖支撑板17，并且相邻的基板按压件通过导线19彼此连接。即它们被布置成使得电流i沿相同的方向流动在导电基板12,12中，该导电基板12,12被夹在相应的基板按压件18,18之间。因此可以产生磁场在均匀且稳定的状态下，可以形成具有优异的再现性的磁性薄膜，并且可以提高磁性膜的粘附条件和磁特性。

4. 发明专利

JPS5782778A Measuring method for magnetic anisotropy of magnetic thin film 失效
标题翻译：磁薄膜电磁异相测量方法
公开(公告)号：JPS5782778A
公开(公告)日：1982-05-24
申请号：JP15882280
申请日：1980-11-13
申请人： Canon Electronics Inc , Canon Inc
发明人： TAKAGI HIROTSUGU , NIIMI AKIRA , SAWADA TAKESHI , YONEDA HIROSHI , ABIKO SHIYUUZOU , GOTOU HIROICHI
IPC分类号： G01R33/12 , G11B5/39
CPC分类号： G01R33/12
摘要： PURPOSE:To measure the magnetic anisotropy of an MR element easily and securely by flowing a constant current to each magnetic thin film deposited on one substrate, and measuring a difference between resistance values before and after a DC magnetic field is applied. CONSTITUTION:A current (i) is flowed in the lengthwise direction of a rectangular MR element 1, and a DC magnetic field large enough to magnetize the MR element 1 to saturation is applied at an angle alpha to the current. In this case, magnetic thin films 3 are formed rectangularly by vapor deposition, sputtering, etc., while facing in every direction, and resistance values of each thin film 3 before and after the DC magnetic field is applied in the current direction are compare mutually. Then, the direction of the strip 3 having no resistance variation is an easy magnetization direction.
摘要翻译：目的：通过将恒定电流流向沉积在一个基板上的每个磁性薄膜，并测量施加直流磁场之前和之后的电阻值之间的差异，从而容易且可靠地测量MR元件的磁各向异性。构成：电流（i）在矩形MR元件1的长度方向上流动，并且以与电流成α角的方式施加足以使MR元件1磁化至饱和的DC磁场。在这种情况下，磁性薄膜3通过气相沉积，溅射等在每个方向上形成为矩形，并且在当前方向上施加直流磁场前后的每个薄膜3的电阻值相互比较。然后，没有电阻变化的条3的方向是容易的磁化方向。

5. 发明专利

JPS5780713A Manufacture of magnetic thin film by sputtering 失效
标题翻译：通过溅射制造磁薄膜
公开(公告)号：JPS5780713A
公开(公告)日：1982-05-20
申请号：JP15706580
申请日：1980-11-10
申请人： Canon Electronics Inc , Canon Inc
发明人： TAKAGI HIROTSUGU , NIIMI HIKARI , SAWADA TAKESHI , YONEDA HIROSHI , ABIKO SHIYUUZOU , GOTOU HIROICHI
IPC分类号： H01F41/18
CPC分类号： H01F41/18
摘要： PURPOSE:To coat a thin magnetic film by applying a DC magnetic field during sputtering to control magnetic anisotropic direction, thereby obtaining locally uniform magnetic field. CONSTITUTION:A substrate 14 is mounted in an opening 13a formed at the center of a ssubstrate holder 13, and square permanent magnets 15 are respectively engaged with grooves 13b formed at both right and left sides of the holder 13. These magnets 15 are secured with clamping screws 16. A magnetic field 17 is produced in a direction designated by an arrow by the magnets 15, which are so disposed that the polarities become opposite at both sides and made of material such as barium ferrite or the like. On the other hand, the magnetic fields becomes in parallel in the vicinity of a substrate 14 with the magnets 15, 15. In this manner, a DC magnetic field is generated by the permanent magnets, locally uniform magnetic field can be produced in the vicinity of the substrate 14, and a film can be coated without disordering the plasma of material to be sputtered.
摘要翻译：目的：通过在溅射过程中施加直流磁场来控制磁各向异性方向涂覆薄磁膜，从而获得局部均匀的磁场。构成：将衬底14安装在形成在硫化物保持器13的中心的开口13a中，并且方形永磁体15分别与形成在保持器13的左右两侧的槽13b接合。这些磁体15固定有夹紧螺钉16.由磁铁15以箭头所示的方向产生磁场17，磁体15被设置为极性在两侧变得相反并且由诸如钡铁氧体等的材料制成。另一方面，磁体在与磁体15,15相对的基板14的附近成为平行的方式。以这种方式，通过永久磁铁产生直流磁场，可以在附近产生局部均匀的磁场的衬底14，并且可以涂覆膜而不使待溅射的材料的等离子体无序。

6. 发明专利

JPS5780578A Magneto resistive thin film magnetic sensor with thermal compensation 失效
标题翻译： MAGNETO电感薄膜磁传感器，具有热补偿功能
公开(公告)号：JPS5780578A
公开(公告)日：1982-05-20
申请号：JP15706680
申请日：1980-11-10
申请人： Canon Electronics Inc , Canon Inc
发明人： SAWADA TAKESHI , YONEDA HIROSHI , NIIMI AKIRA , TAKAGI HIROTSUGU , ABIKO SHIYUUZOU , GOTOU HIROICHI
IPC分类号： G01R33/09 , G01R33/06
CPC分类号： G01R33/09
摘要： PURPOSE:To improve the temperature compensating function by arranging a magneto resistive (MR) element at a temperature compensating section non- parallel to an MR element at a detecting section in a magneto resistive thin film magnetic sensor with temperature compensation. CONSTITUTION:An MR element 3 at a temperature compensating section is arranged non-parallel, for example, roughly at the right angles with an MR element 2 at a detecting section. Both MR elements 2 and 3 have the magnetic anisotropy in the direction as indicated by the arrow 5. With such an arrangement, as the MR element 3 at the temperature compensating section will not be affected by any external signal magnetic field, the MR element 3 at the temperature compensating section is kept from picking up signal magnetic field, however both MR elements 2 and 3 may approach each other. Thus, the MR element 3 at the temperature compensating section has no sensitivity to the signal magnetic field thereby enabling smaller size and a higher temperature compensation accuracy.
摘要翻译：目的：通过在具有温度补偿的磁阻薄膜磁传感器中的检测部分处与MR元件非平行的温度补偿部分设置磁阻（MR）元件来提高温度补偿功能。构成：在温度补偿部分处的MR元件3例如在检测部分处与MR元件2大致成直角地布置成非平行。两个MR元件2和3都具有如箭头5所示的方向上的磁各向异性。通过这样的布置，由于温度补偿部分的MR元件3将不受任何外部信号磁场的影响，所以MR元件3 在温度补偿部分不保持拾取信号磁场，然而两个MR元件2和3可以彼此靠近。因此，温度补偿部分的MR元件3对信号磁场没有灵敏度，从而能够实现更小的尺寸和更高的温度补偿精度。

7. 发明专利

JPS5778612A Thin film magnetic head and its manufacture 失效
标题翻译：薄膜磁头及其制造
公开(公告)号：JPS5778612A
公开(公告)日：1982-05-17
申请号：JP15139280
申请日：1980-10-30
申请人： Canon Electronics Inc , Canon Inc
发明人： GOTOU HIROICHI , ABIKO SHIYUUZOU , NIIMI AKIRA , TAKAGI HIROTSUGU , SAWADA TAKESHI , YONEDA HIROSHI
IPC分类号： G11B5/29 , G11B5/31
CPC分类号： G11B5/3103 , G11B5/3163
摘要： PURPOSE:To make a track pitch dense and also to reduce a dead space on a recording medium, by forming an insulating layer on a part of a magnetic layer constituting a magnetic head, and laminating it like a layer through a winding, on a substrate. CONSTITUTION:Lower magnetic layers M2, M4 constituting a thin film magnetic head for each channel are formed on a substrate 10 by means of vapor-deposition and photoetching. Subsequently, on a part of them, an insulating layer is formed, and on said layer,each winding C2, C4 is formed spirally. Also, on each winding, an insulating layer if formed, and on this insulating layer, upper magnetic layers M2', M4' having the same material quality as th magnetic layers M2, M4 are formed respectively. After the insulating layer 11 has been formed on their whole surface, other magnetic head for each channel is formed on a different stage in the same way. In this way, since the track pitch is controlled to only the width W of each magnetic layer, the track pitch is made dense and a dead space on the recording medium is reduced.
摘要翻译：目的：通过在构成磁头的磁性层的一部分上形成绝缘层，通过绕组将层叠成层的方式，使轨道间距密集并减少记录介质上的死区，在基板上。构成：通过气相沉积和光蚀刻在基板10上形成用于每个沟道的构成薄膜磁头的低磁性层M2，M4。随后，在其一部分上形成绝缘层，并且在所述层上，每个绕组C2，C4被螺旋地形成。此外，在每个绕组上，如果形成绝缘层，并且在该绝缘层上分别形成具有与磁性层M2，M4相同的材料质量的上部磁性层M2'，M4'。在整个表面上形成绝缘层11之后，以相同的方式在不同的台上形成每个通道的其它磁头。以这种方式，由于磁道间距仅被控制到每个磁性层的宽度W，所以磁道间距变得密集，并且记录介质上的死空间减小。

8. 发明专利

JPS5774807A Reproducing method of magnetic recording signal 失效
标题翻译：磁记录信号的再现方法
公开(公告)号：JPS5774807A
公开(公告)日：1982-05-11
申请号：JP15064580
申请日：1980-10-29
申请人： Canon Electronics Inc , Canon Inc
发明人： SAWADA TAKESHI , YONEDA HIROSHI , NIIMI AKIRA , TAKAGI HIROTSUGU , ABIKO SHIYUUZOU , GOTOU HIROICHI
IPC分类号： G11B5/02 , G11B5/39
CPC分类号： G11B5/39
摘要： PURPOSE:To make a device small-sized, by detecting a variation of amplitude or frequency by a signal magnetic field by use of a magnetic reluctance effect type magnetic head whose detecting current is AC, and reducing a decrease of a reproducing output, in a domestic VTR device, etc. CONSTITUTION:An MR head 20 constituted by use of a magnetic reluctance effect element is connected to one side of an AC bridge circuit 22 to which an AC signal of an AC oscillator 23 is applied, through a rotary transformer 21. To a part of the circut 22, an element 25 constituted of an inductance and a resistance for balancing the bridge is installed. Oscillation frequency of the circuit 23 is selected to about 12MHz since frequency of a magnetic field applied to the head 20 is 2-6MHz. According to such a constitution, a variation of a magnetic field applied to an element of the head 20 executes an amplitude modulation as a variation of AC impedance, and a reproducing signal with fidelity according to a recording signal is outputted from an amplifier 24. Since the amplitude or the frequency modulation is detected in this way, a decrease of a reproducing output is reduced, and a device is small-sized.
摘要翻译：目的：为了通过使用检测电流为AC的磁阻效应型磁头检测信号磁场的振幅或频率的变化，并且减小再现输出的减小，使装置小型化，国产VTR装置等。构成：通过使用磁阻效应元件构成的MR磁头20通过旋转变压器21连接到交流电桥电路22的一侧，交流电压振荡器23的交流信号通过旋转变压器21 对于环路22的一部分，安装由电感和用于平衡桥的电阻构成的元件25。由于施加到头20的磁场的频率为2-6MHz，电路23的振荡频率被选择为约12MHz。根据这样的结构，施加到头20的元件的磁场的变化执行作为AC阻抗的变化的幅度调制，并且从放大器24输出根据记录信号的保真度的再现信号。由于以这种方式检测幅度或频率调制，减少再现输出，并且设备尺寸小。

9. 发明专利

JPS5774821A Manufacture of magnetic resistance effect type magnetic head 失效
标题翻译：磁阻效应型磁头的制造
公开(公告)号：JPS5774821A
公开(公告)日：1982-05-11
申请号：JP14834580
申请日：1980-10-24
申请人： Canon Electronics Inc , Canon Inc
发明人： NIIMI AKIRA , TAKAGI HIROTSUGU , SAWADA TAKESHI , YONEDA HIROSHI , ABIKO SHIYUUZOU , GOTOU HIROICHI
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/3903 , G11B5/3106 , G11B5/3163
摘要： PURPOSE:To decrease a spacing loss remarkably, by temporarily joining a substrate and a protective plate, polishing the sliding surface, and after that, separating them, forming a thin film magnetic substance and a conductive material on the substrate side, and after that, joining the protective plate. CONSTITUTION:A protective plate 5 is temporarily joined with a nonmagnetic substance substrate 2 by use of an adhesive agent 10, and the sliding surface against a magnetic recording medium is polished. Subsequently, the protective plate 5 is detached from the substrate 2, is washed, and after that, a thin film magnetic substance 3, for instance, of 80% Ni-Fe alloy, etc. is formed on the substrate 2 by a thin film deposition method. After that, a conductive material such as Al , etc. to be connected to both ends of the magnetic substance 3 is formed, and after that, the protective plate 5 is joined with the substrate 2 by use of an adhesive agent. In the end, tape lapping is performed lightly and the sliding surface is prepared, by which a magnetic head is completed. In this way, no unevenness is caused on the end of the magnetic substance 3 of the sliding surface, a spacing loss against the magnetic recording medium surface is decreased, and it is possible to obtain a head which is excellent in a frequency characteristic and large in an magnetic field.
摘要翻译：目的：为了明显减小间隔损失，通过暂时接合基板和保护板，研磨滑动面，然后将其分离，在基板侧形成薄膜磁性物质和导电材料，之后，加入保护板。构成：通过使用粘合剂10将保护板5与非磁性物质基板2暂时接合，并且对磁性记录介质的滑动面进行抛光。接着，将保护板5与基板2分离，进行清洗，然后在基板2上通过薄膜形成例如80％Ni-Fe合金等的薄膜磁性体3 沉积法。之后，形成与磁性物质3的两端连接的Al等导电材料，之后，利用粘合剂将保护板5与基板2接合。最后，轻轻地进行胶带研磨，并准备滑动表面，由此完成磁头。以这种方式，在滑动面的磁性物质3的端部不产生不均匀性，相对于磁记录介质表面的间隔损失减小，并且可以获得频率特性优异且大的磁头在磁场中。

10. 发明专利

JPS5774820A Magnetic resistance effect type reproducing head 失效
标题翻译：磁阻效应型复制头
公开(公告)号：JPS5774820A
公开(公告)日：1982-05-11
申请号：JP14834480
申请日：1980-10-24
申请人： Canon Electronics Inc , Canon Inc
发明人： GOTOU HIROICHI , ABIKO SHIYUUZOU , NIIMI AKIRA , TAKAGI HIROTSUGU , YONEDA HIROSHI , SAWADA TAKESHI
IPC分类号： G11B5/39
CPC分类号： G11B5/3903
摘要： PURPOSE:To elevate the frequency characteristic, output magnetic field and reliability, by polishing the sliding surface of a recording medium of a head, and after that, plating the end of a thin film magnetic substance on the sliding surface with a magnetic substance having the same quality, and making the polished surface even. CONSTITUTION:In an MR head 1, an MR magnetic material 3 and a conductive material are formed on a nonmagnetic substrate 2, and after that, a protective plate 5 is joined through an adhesive agent 10. Subsequently, the sliding surface of a recording medium is formed by polishing it up to the A-A line. After that, in order to get rid of unevenness of 1-2mu on the polished surface, a magnetic material (NiFe, NiCo, etc.) having the same composition as that of the magnetic material 3 is plated while applying a magnetic field, and a smooth sliding surface having the same magnetic anisotropy as that of the magnetic material 3 is formed. In this way, the space to the magnetic recording medium is made uniform, a spacing loss is reduced, and an MR head which is large in an output magnetic field and excellent in a frequency characteristic is obtained.
摘要翻译：目的：通过抛光头部记录介质的滑动表面，提高频率特性，输出磁场和可靠性，然后用滑动面上的薄膜磁性物质的末端用具有相同的质量，并使抛光表面均匀。构成：在MR磁头1中，MR磁性材料3和导电材料形成在非磁性基板2上，之后通过粘合剂10接合保护板5.随后，记录介质的滑动表面通过将其研磨到AA线而形成。之后，为了在研磨面上除去1-2μm的不均匀性，在施加磁场的同时对与磁性体3相同组成的磁性材料（NiFe，NiCo等）进行电镀，形成具有与磁性材料3相同的磁各向异性的光滑的滑动表面。以这种方式，使磁记录介质的空间均匀，间隔损耗减小，并且获得输出磁场大且频率特性优异的MR磁头。

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