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1. 发明授权

US06783435B1 Method of manufacturing magnetic head, and magnetic recording and reproducing apparatus 失效
标题翻译：制造磁头的方法以及磁记录和重放装置
公开(公告)号：US06783435B1
公开(公告)日：2004-08-31
申请号：US10130776
申请日：2002-05-21
申请人： Shinya Ogasawara , Mitsuhisa Fujiki , Satoshi Yamabayashi , Tetsuya Okana
发明人： Shinya Ogasawara , Mitsuhisa Fujiki , Satoshi Yamabayashi , Tetsuya Okana
IPC分类号： B24B100
CPC分类号： G11B5/531 , G11B5/1335 , G11B5/1871
摘要： A magnetic head is manufactured by grinding a head chip (2) with a gap depth (GD 1) to remove its margin (6) until the gap depth becomes a final gap depth (GD 2). The gap depth (GD 1) is 25 microns or thinner. The method increases yield and productivity in the manufacture of a high performance magnetic head with a decreased gap depth (GD 2), which satisfies the standards of both the gap depth (GD 2) and the distance between the head gap and the outermost point of the chip front.
摘要翻译：通过研磨具有间隙深度（GD 1）的头部芯片（2）以去除其边缘（6）直到间隙深度变为最终间隙深度（GD 2）来制造磁头。间隙深度（GD 1）为25微米或更薄。该方法在间隙深度减小（GD 2）的高性能磁头的制造中提高了产量和生产率，其满足了间隙深度（GD 2）和磁头间隙与最外点之间的距离芯片前端。

2. 发明授权

US06640418B2 Method of manufacturing a head unit 有权
标题翻译：制造头单元的方法
公开(公告)号：US06640418B2
公开(公告)日：2003-11-04
申请号：US09890476
申请日：2001-07-31
申请人： Tetsuya Okana , Mitsuhisa Fujiki , Satoshi Yamabayashi , Shinya Ogasawara
发明人： Tetsuya Okana , Mitsuhisa Fujiki , Satoshi Yamabayashi , Shinya Ogasawara
IPC分类号： G11B5127
CPC分类号： G11B5/48 , G11B5/1871 , G11B5/488 , G11B5/4893 , G11B5/531 , G11B5/60 , G11B15/61 , G11B15/64 , Y10T29/49039 , Y10T29/4913 , Y10T29/49133 , Y10T29/49135
摘要： In processing a head unit in which a head relative height Y is Y′ with a grinding amount &Dgr;GD of &Dgr;GD′, the relationship between distances Bo between a vertex of a curved surface as a front face of a head chip and a head gap before and after grinding the front face of the head chip and a gap depth dimension GD, is predetermined with respect to a head unit in which the head relative height is substantially equal to Y′, through which Bo1 as the value of Bo before grinding corresponding to a target value of the value of Bo after grinding is determined and used as Bo1 of the head unit in which the head relative height Y is Y′. Thus, grinding of the front face of the head chip is conducted after Bo1 corresponding to the target value is determined. Hence, a head unit with the value of Bo after grinding falling within the range of standard values can be manufactured efficiently, and accordingly the yield can be improved.
摘要翻译：在处理头部相对高度Y为具有DeltaGD'的磨削量DeltaGD的头部单元的情况下，作为头部芯片的前表面的曲面的顶点与前面的头部间隙之间的曲面顶点之间的距离Bo之间的关系，以及在研磨头芯片的前表面和间隙深度尺寸GD之后，相对于头部相对高度基本上等于Y'的头单元是预定的，通过该头部单元，Bo1作为磨削前的Bo值对应于确定研磨后的Bo值的目标值，并将其用作头部相对高度Y为Y'的头部单元的Bo1。因此，在确定与目标值对应的Bo1之后，进行头芯片的正面的磨削。因此，可以有效地制造研磨后的Bo值在标准值的范围内的头单元，从而可以提高成品率。

3. 发明授权

US06233812B1 Rotary head device, magnetic head unit and manufacturing method thereof 失效
标题翻译：旋转头装置，磁头单元及其制造方法
公开(公告)号：US06233812B1
公开(公告)日：2001-05-22
申请号：US09034354
申请日：1998-03-04
申请人： Mitsuhisa Fujiki , Hiroshi Yoda , Tetsuya Okana , Masayuki Hino , Suekazu Kugioka
发明人： Mitsuhisa Fujiki , Hiroshi Yoda , Tetsuya Okana , Masayuki Hino , Suekazu Kugioka
IPC分类号： G11B5127
CPC分类号： G11B5/3173 , G11B5/1871 , G11B5/531 , G11B15/61 , Y10T29/49021 , Y10T29/4903 , Y10T29/49032 , Y10T29/49043
摘要： A method of manufacturing the front surface shape of plural magnetic heads precisely in batch in a desired dimension After fixing plural magnetic heads 1, 2 and preliminarily processing curved surfaces along the sliding direction S on a rotary member 4, the curved surfaces Ts along the thickness direction T orthogonal to the sliding direction S of the magnetic heads 1, 2 are formed in batch by finish polishing process by means of abrasive tape or the like.
摘要翻译：以期望的尺寸准确地批量制造多个磁头的前表面形状的方法在将多个磁头1,2固定在旋转部件4上之后，沿着滑动方向S预先处理弯曲表面，沿着厚度通过研磨带等的精加工抛光处理，分批地形成与磁头1,2的滑动方向S正交的方向T.

4. 发明授权

US5761008A Magnetic head device having an intermediate member for adjusting a magnetic head and method of manufacture 失效
标题翻译：具有用于调节磁头的中间部件和制造方法的磁头装置
公开(公告)号：US5761008A
公开(公告)日：1998-06-02
申请号：US669532
申请日：1996-07-12
申请人： Mitsuhisa Fujiki , Takeshi Omiya
发明人： Mitsuhisa Fujiki , Takeshi Omiya
IPC分类号： G11B5/48 , G11B5/49 , G11B5/53 , G11B5/52
CPC分类号： G11B5/53 , G11B5/531 , G11B5/48 , G11B5/4893 , G11B5/4976
摘要： A magnetic head device includes a rotary drum, a plurality of intermediate members fixed on the rotary drum, and a plurality of magnetic heads fixed on the respective intermediate members. Each magnetic head is secured on the rotary drum through an associated intermediate member. A combined thickness of the magnetic head and the intermediate member is set so that variation of track heights of the magnetic heads can be offset. Therefore, it is not necessary to provide a head base or connecting parts, which results in a magnetic head device which is suitable for multiple-magnetic-head devices and small-sized magnetic-head devices. A high-precision magnetic head device can be effectively produced because the variations of track heights of the magnetic heads is offset by the thickness of the intermediate members interposed therebetween.
摘要翻译： PCT No.PCT / JP95 / 02319 Sec。 371日期：1996年7月12日 102（e）日期1996年7月12日PCT提交1995年11月14日PCT公布。出版物WO96 / 日期1996年5月23日磁头装置包括旋转滚筒，固定在旋转滚筒上的多个中间构件和固定在各个中间构件上的多个磁头。每个磁头通过相关联的中间构件固定在旋转鼓上。设置磁头和中间构件的组合厚度，使得可以偏移磁头的磁道高度的变化。因此，不需要设置适用于多磁头装置和小型磁头装置的磁头装置的磁头基座或连接部件。由于磁头的磁道高度的变化被插入其间的中间构件的厚度所抵消，所以可以有效地制造高精度磁头装置。

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