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1. 发明专利

JPS62103820A MAGNETIC HEAD AND ITS PRODUCTION 失效
公开(公告)号：JPS62103820A
公开(公告)日：1987-05-14
申请号：JP24318385
申请日：1985-10-30
申请人： HITACHI METALS LTD
发明人： TONERI HACHIMINE , FURUICHI SHINJI
IPC分类号： G11B5/29 , G11B5/60
摘要： PURPOSE:To make effective use of a disk by forming a slider part so as to have recording and reproducing gaps respectively at both ends. CONSTITUTION:C-shaped cores 2, 3 made of the same material as the material of a slider 1 consisting of Mn-Zn or Ni-Zn ferrite are adhered by a nonmagnetic material such as glass to the right and left of the above-memtioned slider 1. The core parts 2, 3 are formed by working after adhering the two blocks by the nonmagnetic material such as glass and therefore, the formation of double gaps is easy in the case of a monolithic type core slider. The core parts 7, 8 are cut out of one block and are adhered and fixed by the glass, etc., to the integral structure, then the block is separated to two cores by cutting in the stage of working after adhering in the case of forming the double gaps to a composite type core slider. As a result, the variance in the gap depth and spacing of the right and left cores is governed by the working accuracy for cutting out the cores and is reduced within several mum. The effective use of a magnetic disk is thereby made possible.

2. 发明专利

JPH03279236A COMPLEX MAGNETIC HEAD AND GLASS FOR ASSEMBLY 失效
公开(公告)号：JPH03279236A
公开(公告)日：1991-12-10
申请号：JP7775390
申请日：1990-03-27
申请人： HITACHI METALS LTD
发明人： YAMAZAKI MASANOBU , TONERI HACHIMINE
IPC分类号： C03C3/072 , G11B5/127 , G11B5/60
摘要： PURPOSE:To improve weather resistance, water resistance and acid resistance of glass for assembly by using bonding glass comprising SiO2, B2O3, Al2O3, PbO and Bi2O3. CONSTITUTION:10-17wt.% SiO2 is blended with 3-8wt.% B2O3, 1-8wt.% Al2O3, 57-69wt.% PbO and 10-20wt.% Bi2O3 and melted under heating to give bonding glass 24 for assembly having 451-486 deg.C softening point. Then a cut part 25 for controlling truck width Tw attached to a magnetic core 21 is pushed to one end part 26 of a slider 22, gaps 27 and 28 are maintained between the magnetic core and the inside of the slit part 23 and the magnetic core is temporarily fixed by a spring material 29. Then the bonding glass 24 is placed on the top of the slider 22, heat-treated and the core 21 is fixed to the slit part 23 to give a complex magnetic head.

3. 发明专利

JP2530617B2 失效
公开(公告)号：JP2530617B2
公开(公告)日：1996-09-04
申请号：JP14023186
申请日：1986-06-18
申请人： HITACHI METALS LTD
发明人： FURUICHI SHINJI , TAKADA YOSHIAKI , TONERI HACHIMINE
IPC分类号： G11B5/17 , G11B5/127 , G11B5/60

4. 发明专利

JPH08203052A GRINDING DEVICE FOR SIDE TAPER PART OF MAGNETIC HEAD SLIDER 失效
公开(公告)号：JPH08203052A
公开(公告)日：1996-08-09
申请号：JP2750895
申请日：1995-01-24
申请人： HITACHI METALS LTD
发明人： ENDO MICHIO , FUKUDA TORU , KURODA MASANOBU , KONDO YOSHIO , TONERI HACHIMINE
IPC分类号： G11B5/60 , G11B21/21
摘要： PURPOSE: To exactly and stably form a side taper part by providing a grinding device with a pad capable of mounting a slider formed from an elastic material on the pad with both protruded parts of the slider upward. CONSTITUTION: A magnetic head slider 7 with its both protruded parts 7a upward is fitted in a fixing frame 6 on a pad 5 and a lower base plate 1 is raised until a grinding tape 8 and the both protruded parts 7a of the slider are pressed on each other. Then, the protruded parts 7a are abutted on the grinding tape 8 and presses the grinding tape 8. The slider 7 is slightly inclined. Thereafter, when an upper base plate 11 is oscillated laterally in the drawing by means of a vibration excitor and, at the same time, the lower base plate 1 is moved perpendicular to the plane of the figure, both protruded parts 7a are ground by the grinding tape 8 and a side taper part 7b is formed on the respective sides of both protruded parts 7a.

5. 发明专利

JPS61100360A Grooving method 失效
标题翻译：覆盖方法
公开(公告)号：JPS61100360A
公开(公告)日：1986-05-19
申请号：JP22020384
申请日：1984-10-19
申请人： Hitachi Metals Ltd
发明人： TONERI HACHIMINE , KUROI YASUYUKI
IPC分类号： B24B19/02
摘要： PURPOSE: To get rid of unevenness in aquareness as well as to improve efficiency ever so better, by sticking a blockish floppy head tip fast to the slide surface in turning a vertical surface to horizontality, while rotating it by 90° in time of grooving, and using a stairlike jig in time of multi-row grooving.
CONSTITUTION: A vertical surface of a floppy head tip 1 made up in block-form on an inner surface of a tiered working jig 2 is stuck fast to the slide surface and, after a work is stuck to the jig, set to a machine after rotating the jig by 90°. Next, positioning for a grinding wheel takes place after setting, and each row is ground, in order with an automatic indexing device for a spindle position.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了摆脱方便性的不均匀性以及提高效率，通过在将垂直表面转为水平面的同时，将滑动表面快速粘贴到滑动表面，同时将其旋转90度。在切槽时，在多排开槽的时候使用阶梯式夹具。构成：在分层工作夹具2的内表面上以块状形成的软头头1的垂直表面被快速地卡在滑动表面上，并且在将工件粘贴到夹具上之后，将其设置在机器之后将夹具旋转90度。接下来，在设置后进行砂轮定位，并将每一列进行研磨，以便使用主轴位置的自动分度装置。

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