公开(公告)号：US4506220A

公开(公告)日：1985-03-19

申请号：US317386

申请日：1981-11-02

申请人： Takeshi Sawada ,  Kou Yoneda ,  Akira Shinmi ,  Hiroshi Takagi ,  Shuzo Abiko ,  Hirokazu Goto

发明人： Takeshi Sawada ,  Kou Yoneda ,  Akira Shinmi ,  Hiroshi Takagi ,  Shuzo Abiko ,  Hirokazu Goto

IPC分类号： G01R33/09 ,  G01R33/06 ,  H01L43/08

CPC分类号： G01R33/09

摘要： A magnetoresistive effect thin film magnetic sensor has a temperature compensating magnetoresistive effect (MR) element arranged non-parallel to a signal detecting MR element to prevent the temperature compensating MR element from being influenced by an external magnetic signal field. Alternatively, it has an L-shaped temperature compensating MR element arranged closely to the signal detecting MR element to prevent the temperature compensating MR element from being influenced by the external magnetic signal field. It further has a magnet member arranged closely to or in contact with the temperature compensating MR element to enhance a positional precision of the temperature compensation and reduce a time lag.

摘要翻译： 磁阻效应薄膜磁传感器具有与信号检测MR元件不平行布置的温度补偿磁阻效应（MR）元件，以防止温度补偿MR元件受外部磁信号场的影响。 或者，其具有与信号检测MR元件紧密配置的L形温度补偿MR元件，以防止温度补偿MR元件受外部磁信号场的影响。 它还具有与温度补偿MR元件紧密接触或与温度补偿MR元件接触的磁体，以提高温度补偿的位置精度并减少时滞。

公开(公告)号：US4443826A

公开(公告)日：1984-04-17

申请号：US314417

申请日：1981-10-23

申请人： Takeshi Sawada ,  Ko Yoneda ,  Akira Shinmi ,  Hiroshi Takagi ,  Shuzo Abiko ,  Hirokazu Goto

发明人： Takeshi Sawada ,  Ko Yoneda ,  Akira Shinmi ,  Hiroshi Takagi ,  Shuzo Abiko ,  Hirokazu Goto

IPC分类号： G11B5/127 ,  G11B5/39 ,  G11B5/12 ,  G11B5/25 ,  G11B5/30

CPC分类号： G11B5/3954 ,  G11B5/1278

摘要： The present invention is directed to improvements in a perpendicular magnetic recording-reproducing head. One of the improvements comprises the use of a magneto-resistive effect element to form the main pole of the magnetic head. This feature of the invention enables a stable and faithful reproduction of information recorded in a magnetic recording medium up to the shortest wavelength and to obtain a sufficiently large reproducing output signal. Another improvement comprises the use of such magneto-resistive effect elements in layers. The multilayer structure permits production of a large reproducing output and also an optimum S/N ratio even if the width of track is small.

摘要翻译： 本发明涉及垂直磁记录再现头的改进。 其中一个改进包括使用磁阻效应元件来形成磁头的主极。 本发明的这一特征使得能够稳定和忠实地再现记录在最短波长的磁记录介质中的信息并获得足够大的再现输出信号。 另一个改进包括在层中使用这种磁阻效应元件。 即使轨道的宽度小，多层结构也允许产生大的再现输出和最佳的S / N比。

公开(公告)号：US4438470A

公开(公告)日：1984-03-20

申请号：US284708

申请日：1981-07-20

申请人： Takeshi Sawada ,  Ko Yoneda ,  Akira Shinmi ,  Hirokazu Goto ,  Shuzo Abiko

发明人： Takeshi Sawada ,  Ko Yoneda ,  Akira Shinmi ,  Hirokazu Goto ,  Shuzo Abiko

IPC分类号： G11B5/39 ,  G11B5/12 ,  G11B5/30 ,  G11B5/42 ,  H01F7/06

CPC分类号： G11B5/3964 ,  G11B5/398 ,  Y10T29/49046

摘要： A process for making magnetic reluctance effect type magnetic heads comprises forming the magnetic sensor, first lead and second lead sections in series by use of the same material. The noise in the magnetic head is reduced, yet the output is increased by making the first lead section of a width larger than that of the magnetic sensor and second lead sections. The reproducing sensitivity of the magnetic head is increased by forming a plurality of magnetic sensor sections in series within a rectangular area. The control of the magnetic characteristics of the head are controlled for providing less dispersion by providing a substrate on which a magnetic reluctance effect type material varying in electric resistance in response to any magnetic field is formed into a film, the substrate being optionally etched by the use of photolithography to form the magnetic sensor sections, the first lead section and the second lead section on the substrate in given configurations.

摘要翻译： 用于制造磁阻效应型磁头的方法包括使用相同的材​​料串联形成磁传感器，第一引线部分和第二引线部分。 磁头中的噪声减小，但是通过使第一引线部分的宽度大于磁传感器和第二引线部分的宽度来增加输出。 通过在矩形区域内串联形成多个磁传感器部分来提高磁头的再现灵敏度。 控制磁头的磁特性的控制是通过提供一种衬底来提供较少的色散，其中响应于任何磁场而在电阻上变化的磁阻效应型材料形成在膜中，该衬底任选地被 在给定的构造中使用光刻法在基底上形成磁传感器部分，第一引线部分和第二引线部分。

公开(公告)号：US4785241A

公开(公告)日：1988-11-15

申请号：US893215

申请日：1986-08-05

申请人： Shuzo Abiko ,  Hirokazu Goto ,  Masakazu Kuhara ,  Hideto Sano ,  Hisanori Hayashi ,  Takeshi Osato

发明人： Shuzo Abiko ,  Hirokazu Goto ,  Masakazu Kuhara ,  Hideto Sano ,  Hisanori Hayashi ,  Takeshi Osato

IPC分类号： G01D5/14 ,  G01D5/16 ,  G01B7/14

CPC分类号： G01D5/145

摘要： An encoder unit comprising an object to be detected having a track having a first region with a magnetization pattern at a predetermined pitch and a second region having no periodic magnetization pattern, and a detector having a magnetoresistance effect element arranged in the direction which intersects the direction of the magnetic flux of the magnetization pattern and in opposed relationship with the object to be detected. The encoder unit is simple in construction yet capable of detecting the position of the object to be detected with a higher degree of accuracy than conventional encoders.

摘要翻译： 一种编码器单元，包括被检测物体，具有具有预定间距的磁化图案的第一区域和不具有周期性磁化图案的第二区域的轨道，以及具有沿与方向相交的方向布置的方向的磁阻效应元件的检测器 的磁化模式的磁通量和与待检测对象的相对关系。 编码器单元结构简单，能够以比常规编码器更高的精度检测待检测物体的位置。

公开(公告)号：US4775909A

公开(公告)日：1988-10-04

申请号：US697076

申请日：1985-01-31

申请人： Shinichi Inoue ,  Shuzo Abiko ,  Hirokazu Goto ,  Masakazu Kuhara

发明人： Shinichi Inoue ,  Shuzo Abiko ,  Hirokazu Goto ,  Masakazu Kuhara

IPC分类号： G11B5/127 ,  G11B5/29 ,  G11B5/31 ,  G11B5/133 ,  G11B5/147

CPC分类号： G11B5/3176 ,  G11B5/29 ,  G11B5/3116

摘要： Magnetic thin films are formed on two base plates in relation to tracks of a recording medium. After a non-magnetic thin film is disposed on the magnetic thin films, the two base plates are joined via the non-magnetic thin film to form a magnetic gap, so that a magnetic head is fabricated. The magnetic head can be mass-produced in a simple process with uniform quality, and offers a small area of the surface opposite to each other in adjacent recording and/or reproducing portions, so that crosstalk is reduced.

摘要翻译： 磁性薄膜相对于记录介质的轨迹形成在两个基板上。 在磁性薄膜上设置非磁性薄膜之后，通过非磁性薄膜将两个基板接合以形成磁隙，从而制造磁头。 磁头可以以均匀质量的简单工艺进行批量生产，并且在相邻的记录和/或再现部分中提供彼此相对的表面的小面积，从而降低串扰。