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1. 发明专利

JP2006155858A Magnetic recording disk drive with data written and read as cross-track magnetization 审中-公开
标题翻译：磁记录磁盘驱动器，具有数据写入功能，可作为交叉轨迹读取
公开(公告)号：JP2006155858A
公开(公告)日：2006-06-15
申请号：JP2005305587
申请日：2005-10-20
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： NIKITIN VLADIMIR
IPC分类号： G11B5/02 , G11B5/31 , G11B5/65
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/02 , G11B5/127 , G11B5/2655 , G11B5/31 , G11B5/3909 , G11B5/3912 , G11B5/3967 , G11B5/743 , G11B2005/0005 , G11B2005/3996
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording disk drive in which no problem exists related to the demagnetizing field along data tracks and the data recording density can be increased.
SOLUTION: A disk 212 has concentric circular data tracks 230 to 233 which are mutually and magnetically separated by guard bands 220 to 224. An inductive write head has write magnetic poles P1 and P2 and a write gap 330 which are arranged to generate magnetic field along the cross-track direction. A free-layer magnetization direction 411 of a magnetoresistive read head 400 is perpendicular to the disk surface and a fixed layer magnetization direction 407 is parallel to the disk surface and orthogonal to the free-layer magnetization direction 411. The read head may have magnetic side shields SS1 and SS2 spaced from the cross-track direction to prevent magnetic flux from adjacent data tracks to reach the read head.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种磁记录盘驱动器，其中不存在与沿着数据轨道的去磁场有关的问题，并且可以增加数据记录密度。解决方案：磁盘212具有同心的圆形数据磁道230至233，它们被保护带220至224相互和磁性地分开。感应写入头具有写入磁极P1和P2以及写入间隙330，沿着磁道方向的磁场。磁阻读取头400的自由层磁化方向411垂直于盘表面，并且固定层磁化方向407平行于盘表面并与自由层磁化方向411正交。读取头可具有磁性侧屏蔽与交叉轨道方向间隔的SS1和SS2，以防止来自相邻数据轨的磁通到达读头。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JPS6168709A Compound magnetic head 失效
标题翻译：复合磁头
公开(公告)号：JPS6168709A
公开(公告)日：1986-04-09
申请号：JP18964784
申请日：1984-09-12
申请人： Hitachi Maxell Ltd
发明人： FUJIWARA HIDEO , HAYASHI MASASHI , OSANAWA NOBUHIKO , YAMANO MINORU
IPC分类号： G11B5/245 , G11B5/17 , G11B5/187 , G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To decrease the gap interval extremely and to make outer and inner peripheral tracks nearly equal in pitch by constituting the 2nd core half bodies of a recording ad playback head and awn erasing head by using magnetic thin films formed at both sides of an intermediate nonmagnetic thin plate. CONSTITUTION:The recording and playback head 31 consists of the 1st core half body 35 and the 2nd core half body 36, and the erasing head 32 is composed of the 1st core half body 41 and the 2nd core half body 42, which are joined together with glass, etc., across the nonmagnetic thin plate 33. The 2nd core half bodies 36 and 42 are formed at both sides of the thin plate 33 during manufacture, and gap spacers 37 and 43 are vapor-deposited thereupon. For the purpose, those layers are handled as one thin plate member and the 1st core half bodies 35 and 41 are joined therewith the constitute the head. Consequently, the gap interval between both heads is made extremely small, so inner and outer tracks are nearly equalized in pitch.
摘要翻译：目的：通过使用形成在中间非磁性的两侧的磁性薄膜，通过构成记录广告播放头和扫描头的第二核半体，使外周和内周的轨道几乎相等，薄板。构成：记录再现头31由第一芯半体35和第二芯半体36组成，擦除头32由第一芯半体41和第二芯半体42组成，它们连接在一起玻璃等穿过非磁性薄板33.第二芯半体36和42在制造期间形成在薄板33的两侧，间隙间隔件37和43在其上气相沉积。为此，这些层被作为一个薄板构件处理，并且第一芯半体35和41与其连接构成头部。因此，两个头部之间的间隙间隔非常小，因此内部和外部轨道在间距上几乎相等。

3. 发明专利

JPS6157019A Side erase magnetic head 失效
标题翻译：侧消磁头
公开(公告)号：JPS6157019A
公开(公告)日：1986-03-22
申请号：JP17753784
申请日：1984-08-28
申请人： Hitachi Metals Ltd
发明人： NISHIYAMA SHUNICHI , IWATA HITOSHI , NOGUCHI KAZUMI
IPC分类号： G11B5/127 , G11B5/23 , G11B5/245 , G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To improve the evenness of leakage magnetic flux and to erase effectively the magnetic flux by projecting partially an erase core in the read/ write direction. CONSTITUTION:Each core 6 and 7 has projected divisions 8 and 9 formed in a circular arc shape respectively. In this side erase magnetic head, the leakage magnetic flux is concentrated on the projected divisions 8 and 9 by installing them facing to the read/write core 1 of the erase core 6 and 7. In such a way 1 the generation of the magnetic flux which can perform the enough erasing with small erase current is made possible, providing effective erasing.
摘要翻译：目的：为了提高泄漏磁通的均匀性，并通过在读/写方向上部分地擦除一个擦除磁芯来有效地擦除磁通量。构成：每个芯6和7分别具有以圆弧形状形成的突出部分8和9。在该侧擦除磁头中，通过将它们安装在与擦除芯6和7的读/写磁芯1相对的位置上，泄漏磁通集中在投影部分8和9上。以这种方式1产生磁通量可以用小的擦除电流执行足够的擦除，从而提供有效的擦除。

4. 发明专利

JPS59142721A Magnetic head 失效
标题翻译：磁头
公开(公告)号：JPS59142721A
公开(公告)日：1984-08-16
申请号：JP1653383
申请日：1983-02-03
申请人： Seiko Epson Corp
发明人： MATSUYAMA HIROSHI
IPC分类号： G11B5/23 , G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To make the magnetic flux generated by magnetism in a medium insensible in an erasing head by a recording and reproducing head, and to reduce erasure crosstalk greatly by making depth-directional angles of the recording and reproducing head and erasing head different. CONSTITUTION:When a recording current flows through a coil 1, cores 13 and 15 are excited to produce a recording magnetic field by an R/W gap 18. In a figure, 12 is the distribution of the produced magnetic field. Then, magnetism shown by 21 is left on the medium. The erasing head erases both sides of a recorded track for trimming. The gap 19 of the erasing head is opposite in direction to the gap 18 of the recording and reproducing head in the gap depth direction, so magnetic flux originating from magnetism in a direction 21 is made insensible. Therefore, the erasure crosstalk is made less in an off-track state than that of a conventional head.
摘要翻译：目的：通过记录和再现头使在擦除头中不敏感的介质中的磁性产生磁通，并通过使记录和再现头的深度方向角度和擦除头不同而大大减少擦除串扰。构成：当记录电流流过线圈1时，激励芯13和15通过R / W间隙18产生记录磁场。在图中，12是所产生的磁场的分布。然后，将21所示的磁力留在介质上。擦除头擦除记录轨道的两边进行修整。擦除头的间隙19在间隙深度方向上与记录和再现头的间隙18相反，因此使得从方向21的磁性起源的磁通变得不可见。因此，在偏离磁道状态下，擦除串扰比常规磁头更小。

5. 发明专利

JPS59139123A Magnetic head 失效
标题翻译：磁头
公开(公告)号：JPS59139123A
公开(公告)日：1984-08-09
申请号：JP1030083
申请日：1983-01-25
申请人： Seiko Epson Corp
发明人： HANDA SHIYUNJI
IPC分类号： G11B5/23 , G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To reduce the production cost of a magnetic head satisfying ordinary functions and having an extremely simple constitution by forming upside-down U-shaped erasing gaps connected to a recording/reproducing gap on both sides of the latter gap and using a coil as a recording/reproducing coil and an erasing coil in common. CONSTITUTION:In the gap part 23, a part 11 is the recording/reproducing gap, parts 12, 13 are erasing gaps and the angle of these gaps is 45 deg.. The coil 22 is used as a recording/reproducing coil and an erasing coil in common. The figure (a) shows the n-th recorded track 31 and the (n+1)th recorded track 32. A part 33 shows the direction of the gap of a head and becomes the azimuth of a recording pattern as it is. A relative position when the recorded disk is inserted into another device is shown in (b). Namely, the head is shifted to the (n+1)th track side. In this invention, the relative angle of azimuth between the width part 36 recorded in the figure (a) and the width part 36 of the head gap to be reproduced in the figure (b) is about 90 deg. and the part 36 is not reproduced. Therefore, the noises of an adjacent track are not mixed into an off track included within allowance.
摘要翻译：目的：为了降低满足普通功能的磁头的制造成本，并且通过形成连接到后一间隙的两侧的记录/再现间隙的倒置的U形擦除间隙，并且使用线圈作为记录/再现线圈和消除线圈。构成：在间隙部分23中，部分11是记录/再现间隙，部分12,13消除间隙，这些间隙的角度为45度。线圈22用作记录/再现线圈和擦除线圈共同点。图（a）示出了第n个记录的轨道31和第（n + 1）个记录轨道32.部分33示出了头部的间隙的方向，并且成为记录图案的方位角。（b）中记录了记录盘插入另一装置时的相对位置。即，头部移动到第（n + 1）个轨迹侧。在本发明中，在图（a）中记录的宽度部分36和要在图（b）中再现的头部间隙的宽度部分36之间的方位角的相对角度约为90度。并且部分36不被再现。因此，相邻轨道的噪声不会混合到包含在允许范围内的偏离轨道上。

6. 发明专利

JPS59129921A Magnetic head 失效
标题翻译：磁头
公开(公告)号：JPS59129921A
公开(公告)日：1984-07-26
申请号：JP385483
申请日：1983-01-13
申请人： Seiko Epson Corp
发明人： HANDA TSUNEO , YOKOYAMA OSAMU , KAWACHI AKIHIKO , INAZUMI MITSUHIRO
IPC分类号： G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To record and reproduce to and from a recording medium whose disk diameter is small with high track density, by forming an erasing gap of an erasing head core by a high magnetic permeability thin film and a high magnetic permeability bulk material. CONSTITUTION:An I-bar of an erasing core is constituted of a high magnetic permeability thin film instead of a bulk material, and a high magnetic permeability thin film 15 is formed to about 1mum-50mum film thickness by means of spattering, vapor-deposition, etc. on a non-magnetic supporting body 13. According to such a constitution, it can be considered that the I-bar of the erasing core does not exist, therefore, even if a distance between a recording and reproducing gap and an erasing gap becomes small, there is room for placing a head core, and a saturation magnetization of the high magnetic permeability thin film 15 is remarkably larger than a saturation magnetization of ferrite, therefore, a recording medium of a high coercive force can also be erased exactly, the erasing capacity is also high, and also it can cope enough with converting a disk to a small diameter.
摘要翻译：目的：通过高磁导率薄膜和高磁导率散装材料形成擦除磁头芯的擦除间隙，来记录和重现磁盘直径小，轨道密度高的记录介质。构成：擦除芯的I形棒由高磁导率薄膜代替块状材料构成，高磁导率薄膜15通过溅射，气相沉积形成为约1μm-50μm的薄膜厚度等等。根据这样的结构，可以认为擦除芯的I条不存在，因此即使记录和再现间隙之间的距离与擦除间隙变小，存在放置头芯的空间，高磁导率薄膜15的饱和磁化强度明显大于铁素体的饱和磁化强度，因此，高矫顽磁力的记录介质也可以精确地擦除，擦除能力也很高，也可以将光盘转换成小直径来应付。

7. 发明专利

JPS6196507A Floppy disk device 失效
标题翻译： FLOPPY磁盘设备
公开(公告)号：JPS6196507A
公开(公告)日：1986-05-15
申请号：JP21916584
申请日：1984-10-17
申请人： Nanakomu:Kk
发明人： OKUDA MOTOJI
IPC分类号： G11B5/187 , G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To execute easily working and to realize a low cost a head which is not inferior in respect of its performance by providing in front an erasing head having a track width of one track pitch, and placing a recording and reproducing head whose width is narrower than said width, at a rear side. CONSTITUTION:A magnetic head is constituted of an erasing head A and a recording and reproducing head B, the erasing head A is placed in front with respect to a medium running direction, and its track width is set so as to correspond to about one track pitch. Also, the recording and reproducing head B is set so that its width is narrower than that of the head A, and placed at the rear side. Accordingly, when rewriting a data, it is written by the head B after erasing completely the previous information by the erasing head A, therefore, a residual noise can be eliminated entirely. Also, three cores are not combined as before, and working of a wide width is executed, therefore, working can be executed easily. According, the head which is not inferior in respect of its performance can be formed at a low cost.
摘要翻译：目的：通过在前面提供具有一个轨道间距的轨迹宽度的擦除头，并且放置宽度较窄的记录和再现头，执行易于工作并实现低成本的头，其性能不逊色在所述宽度上，在后侧。构成：磁头由擦除头A和记录和再现头B构成，擦除头A相对于介质运行方向放置在前面，并且其轨道宽度被设置为对应于大约一个轨道沥青。此外，记录和再现头B被设置为使得其宽度比头部A的宽度窄，并且放置在后侧。因此，当重写数据时，由擦除头A完全擦除先前的信息后，由头B写入数据，因此可以完全消除残留噪声。此外，三核不像以前那样组合，并且执行宽宽度的工作，因此可以容易地执行工作。据此，能够以低成本形成对性能不劣的头部。

8. 发明专利

JPS6111911A Magnetic head device 失效
标题翻译：磁头设备
公开(公告)号：JPS6111911A
公开(公告)日：1986-01-20
申请号：JP13243384
申请日：1984-06-27
申请人： Hitachi Metals Ltd
发明人： TAKADA YOSHIAKI , FURUICHI SHINJI
IPC分类号： G11B5/265
CPC分类号： G11B5/2651 , G11B5/2655
摘要： PURPOSE:To easily manufacture the magnetic head device with high track density and high precision by forming an erasing magnetic head component of an erasing magnetic head core made of a metallic magnetic material and a nonmagnetic auxiliary plate, and forming the metallic magnetic material by sputtering, vapor deposition, or plating. CONSTITUTION:A metallic magnetic material 8 is added to the nonmagnetic auxiliary plate 7 by sputtering, vapor deposition, or plating. A nonmagnetic material 10, i.e. glass or resin, etc., is added to the surface of the erasing head core part 8 of the erasing magnetic head component 9 where gap length 3 is formed. This nonmagnetic material 10 controls the gap length (g) of the erasing head core. On the other hand, glass which serves as a joining agent is usable for the nonmagnetic material 10 and fused and flowed to a gap after said control, thus obtaining the magnetic head consisting of the erasing magnetic head component 9 and recording and reproducing magnetic head core 1 in abutting relation similarly.
摘要翻译：目的：通过形成由金属磁性材料和非磁性辅助板制成的擦除磁头芯的擦除磁头部件，并通过溅射形成金属磁性材料，从而容易地制造具有高磁道密度和高精度的磁头装置，气相沉积或电镀。构成：通过溅射，气相沉积或电镀将金属磁性材料8添加到非磁性辅助板7。将非磁性材料10，即玻璃或树脂等添加到形成间隙长度3的擦除磁头部件9的擦除磁头芯部8的表面。该非磁性材料10控制擦除头芯的间隙长度（g）。另一方面，作为接合剂的玻璃可以用于非磁性材料10，并且在所述控制之后熔融并流动到间隙，从而获得由擦除磁头部件9和记录和再现磁头芯构成的磁头 1在邻接关系中类似。

9. 发明专利

JPS59154624A Magnetic head 失效
标题翻译：磁头
公开(公告)号：JPS59154624A
公开(公告)日：1984-09-03
申请号：JP2982083
申请日：1983-02-24
申请人： Seiko Epson Corp
发明人： HANDA SHIYUNJI
IPC分类号： G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To improve the reliability by forming a bulk-shaped magnetic substance between a nonmagnetic substance and a thin film magnetic core allow the magnetic head to cope with low cost and high track density. CONSTITUTION:A recording/reproducing gap 13, thin film magnetic cores 14, 16, an erasing gap 18 and a nonmagnetic substance 20 are provided between the bulk-shaped magnetic cores 11 and 12. Bulk-shaped magnetic substances 31, 32 are formed respectively between thin film magnetic cores 15, 16 and a T-shaped nonmagnetic substance 20 along the running direction of a recording medium. The thickness of the nonmagnetic substance 20 is nearly 200-300 microns and nearly 700 microns near a gap. Through the constitution, a magnetic field required for the magnetization of the recording medium having several hundred Oersteds of coercive force is generated at the gap. The lamination of each magnetic head is not required thereby reducing the cost, and the clearance between the recording/reproducing gap and the reasing gap is controlled in the order of several microns.
摘要翻译：目的：为了通过在非磁性物质和薄膜磁芯之间形成体积形状的磁性物质来提高可靠性，磁头可以降低成本和高的轨道密度。构成：在本体磁芯11和12之间设置有记录/再现间隙13，薄膜磁芯14,16，擦除间隙18和非磁性物质20.分别形成体形磁性体31,32 沿着记录介质的运行方向在薄膜磁芯15,16和T形非磁性物质20之间。非磁性物质20的厚度接近200-300微米，并且在间隙附近接近700微米。通过该结构，在间隙产生具有数百矫顽力矫顽力的记录介质的磁化所需的磁场。不需要每个磁头的层压，从而降低了成本，并且记录/再现间隙和放置间隙之间的间隙被控制在几微米的数量级。

10. 发明专利

JPS59144022A Magnetic head 失效
标题翻译：磁头
公开(公告)号：JPS59144022A
公开(公告)日：1984-08-17
申请号：JP1844983
申请日：1983-02-07
申请人： Seiko Epson Corp
发明人： HANDA TSUNEO , YOKOYAMA OSAMU , INAZUMI MITSUHIRO , KAWACHI AKIHIKO
IPC分类号： G11B5/187 , G11B5/265
CPC分类号： G11B5/2655
摘要： PURPOSE:To attain the recording with high track density on a disk recording medium of a small diameter by using a thin band of high permeability at a part of a core to reduce the distance between a record/reproduction gap and an erasion gap. CONSTITUTION:A magnetic head consists of a record/reproduction gap 11, an erasion gap 12, materials 13, 14 and 16 of high permeability, a thin band 15 of high permeability, a nonmagnetic substrate 17, an erasion coil 18, a record/reproduction coil 19, and materials (back bars) 20 and 21 of high permeability respectively. The band 15 of ''Permalloy'', ''Sendust'', etc. is formed on the substrate 17 and then turned into a prescribed shape by a photoetching process. The belt 15 has high saturated magnetic flux density and functions to reduce the distance between gaps 11 and 12. Thus it is possible to perform the recording with high track density of a disk recording medium of a small diameter.
摘要翻译：目的：通过在芯的一部分使用高磁导率的薄带来减小记录/再现间隙与擦除间隙之间的距离，以便在小直径的盘记录介质上实现具有高磁道密度的记录。构成：磁头由高磁导率的记录/再现间隙11，擦除间隙12，材料13,14和16，高磁导率的薄带15，非磁性衬底17，擦除线圈18，记录/ 再生线圈19和分别具有高磁导率的材料（背杆）20和21。 “坡莫合金”，“Sendust”等的带15形成在基板17上，然后通过光刻工艺变成规定的形状。带15具有高的饱和磁通密度，并且具有减小间隙11和12之间的距离的功能。因此，可以执行具有小直径的盘记录介质的高轨道密度的记录。

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