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公开(公告)号：US4997796A
公开(公告)日：1991-03-05
申请号：US461131
申请日：1990-01-04
申请人： Fumitoshi Toyoshima , Noriyo Nagumo
发明人： Fumitoshi Toyoshima , Noriyo Nagumo
摘要： A kind of glass for magnetic head having a property of absorption of light and a property of adhesion in the molten state is produced as follows: CuO and Cr.sub.2 O.sub.3 are added to the glass of PbO-B.sub.2 O.sub.3 -SiO phase in order to increase the absorption rate from a laser beam. TeO.sub.2 is added in order to decrease the viscosity of the molten material and to increase the molten viscosity and the wettability to ceramics and ferrite which are bonded. It can be used in the fabrication of the magnetic head and the floating magnetic head. In particular the glass melts easily when irradiated by a xenon arc beam and other lasser beams.
摘要翻译： 产生具有吸收光和熔融状态下的粘附性的磁头的一种玻璃，为了增加吸收，向PbO-B 2 O 3 -SiO相玻璃中添加CuO和Cr2O3 从激光束的速率。 添加TeO 2以降低熔融材料的粘度，并且增加熔融粘度和粘结的陶瓷和铁素体的润湿性。 它可用于制造磁头和浮动磁头。 特别地，当用氙弧光束和其他拉索光束照射时，玻璃容易熔化。
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公开(公告)号：US4831481A
公开(公告)日：1989-05-16
申请号：US886205
申请日：1986-07-15
申请人： Fumitoshi Toyoshima
发明人： Fumitoshi Toyoshima
CPC分类号： G11B5/2651
摘要： A composite magnetic head is integrally formed with a recording/reproducing head section having a recording/reproducing gap and an erasing head section having two erasing gaps. The magnetic head has formed in its surface facing a magnetic recording medium two parallel diagonal grooves extending across the two head sections which are inclined with respect to the gaps and spaced apart so as to define the outer ends of the recording/reproducing gap and respective inner ends of each of the erasing gaps.
摘要翻译： 复合磁头与具有记录/再现间隙的记录/再现头部和具有两个擦除间隙的擦除头部整体形成。 磁头在其面向磁记录介质的表面上形成了两个平行的对角槽，两个平行的对角槽相对于两个头部部分延伸，这些凹槽相对于间隙倾斜并间隔开，以限定记录/再现间隙的外端， 每个擦除间隙的末端。
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