公开(公告)号：US5157569A

公开(公告)日：1992-10-20

申请号：US704226

申请日：1991-05-22

申请人： Noriyuki Kumasaka ,  Kenkichi Inada ,  Ikuo Shinta ,  Sigeo Imai ,  Souzou Sasajima

发明人： Noriyuki Kumasaka ,  Kenkichi Inada ,  Ikuo Shinta ,  Sigeo Imai ,  Souzou Sasajima

IPC分类号： G11B5/127 ,  G11B5/187

CPC分类号： G11B5/1871

摘要： A magnetic head having a pair of nonmagnetic core base bodies coupled to each other in such a manner that amorphous magnetic alloy films are applied to their abutment surfaces and a gap layer is interposed in a magnetic gap of the head, the films applied to the bodies being made abut against each other at their end edge surfaces each of which has a width larger than its film thickness, and at least one of the bodies having a coil winding groove formed at a portion at which the bodies are coupled to each other. Surface layer portions of each of the bodies, with which a magnetic tape comes into contact, are removed along a direction in which the magnetic tape moves, to a depth which is substantially the same as the depth of the gap while leaving a widthwise portion, which is the same as the track width defined by the width of contact between the two end edge surfaces of the films, at the widthwise center of the bodies, two recesses which are formed by removing the surface layer portions being filled with 2MgO--SiO.sub.2 or MgO--SiO.sub.2, and another amorphous magnetic alloy film is applied to the inner surface of the coil winding groove which defines a coil winding aperture and the latter film is integrally continued to the former films.

摘要翻译： 一种具有一对非磁性芯基体的磁头，其以非磁性合金膜施加到其邻接表面并且将间隙层插入到磁头的磁隙中的方式彼此连接，所述膜施加到主体 在它们的端部边缘表面彼此抵接，每个端部边缘具有大于其膜厚度的宽度，并且至少一个主体具有形成在主体彼此连接的部分处的线圈缠绕槽。 磁带接触的每个主体的表面层部分沿着磁带移动的方向被移除到与间隙的深度基本相同的深度，同时留下宽度方向部分， 其与由膜的两个端边缘表面之间的接触宽度限定的轨道宽度相同，在主体的宽度方向中心处，通过去除填充有2MgO-SiO 2的表面层部分形成的两个凹部 MgO-SiO 2和另一种非晶磁性合金膜施加到限定线圈卷绕孔的线圈卷绕槽的内表面，并且后者的膜与前一个膜一体地连续。