公开(公告)号：US20040174628A1

公开(公告)日：2004-09-09

申请号：US10793502

申请日：2004-03-04

Inventor： Theodore A. Schwarz ,  Matthew P. Dugas

IPC: G11B005/09 ,  G11B021/02 ,  G11B020/20

CPC classification number: G11B5/2651 ,  G11B5/00813 ,  G11B5/23 ,  G11B5/2652 ,  G11B5/3103 ,  G11B5/313 ,  G11B5/4893 ,  G11B5/54 ,  G11B5/5504 ,  G11B5/5513 ,  G11B20/1205

Abstract: Large angle azimuth recording methods and devices. In one aspect of the invention methods of recording one or data tracks having data transitions oriented at a large azimuth angle are provided. In another aspect of the invention methods of reading a data track having data transitions oriented at a large azimuth angle are provided. Such methods include steps of suppressing a side track signal. In other aspects of the invention, head modules and devices for writing and/or reading large azimuth angle data tracks are provided.

Abstract translation: 大角度方位记录方法和装置。 在本发明的一个方面，提供了记录具有朝向大方位角的数据转换的一个或数据轨道的方法。 在本发明的另一方面，提供了读取具有以大方位角定向的数据转换的数据轨道的方法。 这样的方法包括抑制侧轨道信号的步骤。 在本发明的其他方面，提供了用于写入和/或读取大方位角数据轨道的头模块和装置。

公开(公告)号：US06624969B2

公开(公告)日：2003-09-23

申请号：US09824058

申请日：2001-04-03

Applicant: Motoji Egawa ,  Shigeyuki Oishi

Inventor： Motoji Egawa ,  Shigeyuki Oishi

IPC: G11B5133

CPC classification number: G11B5/2651 ,  G11B5/016 ,  G11B5/105 ,  G11B5/1272 ,  G11B5/295 ,  G11B5/4886

Abstract: A magnetic head which can improve workability in coil formation, prevent wiring errors and is compatibly applicable to recording media having respective recording densities different from each other. Twelve cut-outs (11) are formed on four walls (10) at respective edges of a back yoke (5) and lead wires (15a, 15b) of a read/write coil (15) and lead wires (16a, 16b) of a read/write coil (16) are let separately through the respective cut-outs (11), whereby the lead wires (15a, 15b and 16a, 16b) are not mistaken for each other in wiring. Since first and second magnetic cores (2 and 3) and the read/write coils (15 and 16) corresponding thereto are provided, the magnetic head is capable of reading and writing on two recording media having respective recording densities different from each other, thereby providing compatibility for magnetic recording.

Abstract translation: 一种可以提高线圈形成中的可加工性的磁头，防止布线错误，并且兼容地适用于具有彼此不同的记录密度的记录介质。 十二个切口（11）形成在后磁轭（5）的各个边缘的四个壁（10）和读/写线圈（15）和引线（16a，16b）的引线（15a，15b） 读取/写入线圈（16）分别通过相应的切口（11），由此引线（15a，15b和16a，16b）在布线中彼此不相互错误。 由于提供了与其对应的第一和第二磁芯（2和3）和读/写线圈（15和16），磁头能够在具有彼此不同的记录密度的两个记录介质上进行读写，从而 提供磁记录的兼容性。

公开(公告)号：US20010026418A1

公开(公告)日：2001-10-04

申请号：US09824058

申请日：2001-04-03

Applicant: MINEBEA CO., LTD.

Inventor： Motoji Egawa ,  Shigeyuki Oishi

IPC: G11B005/127

CPC classification number: G11B5/2651 ,  G11B5/016 ,  G11B5/105 ,  G11B5/1272 ,  G11B5/295 ,  G11B5/4886

Abstract: A magnetic head which can improve workability in coil formation, prevent wiring errors and is compatibly applicable to recording media having respective recording densities different from each other. Twelve cut-outs (11) are formed on four walls (10) at respective edges of a back yoke (5) and lead wires (15a, 15b) of a read/write coil (15) and lead wires (16a, 16b) of a read/write coil (16) are let separately through the respective cut-outs (11), whereby the lead wires (15a, 15b and 16a, 16b) are not mistaken for each other in wiring. Since first and second magnetic cores (2 and 3) and the read/write coils (15 and 16) corresponding thereto are provided, the magnetic head is capable of reading and writing on two recording media having respective recording densities different from each other, thereby providing compatibility for magnetic recording.

Abstract translation: 一种可以提高线圈形成中的可加工性的磁头，防止布线错误，并且兼容地适用于具有彼此不同的记录密度的记录介质。 十二个切口（11）形成在后磁轭（5）的各个边缘的四个壁（10）和读/写线圈（15）和引线（16a，16b）的引线（15a，15b） 读取/写入线圈（16）分别通过相应的切口（11），由此引线（15a，15b和16a，16b）在布线中彼此不相互错误。 由于提供了与其对应的第一和第二磁芯（2和3）和读/写线圈（15和16），磁头能够在具有彼此不同的记录密度的两个记录介质上进行读写，从而 提供磁记录的兼容性。

公开(公告)号：US06094806A

公开(公告)日：2000-08-01

申请号：US236875

申请日：1999-01-26

Applicant: Michael McNeil ,  Harlan Mathews

Inventor： Michael McNeil ,  Harlan Mathews

IPC: G11B5/012 ,  G11B5/024 ,  G11B5/23 ,  G11B5/265 ,  G11B5/31 ,  G11B5/39 ,  G11B5/48 ,  G11B5/55 ,  G11B21/00 ,  G11B5/42

CPC classification number: G11B5/3967 ,  G11B21/00 ,  G11B5/012 ,  G11B5/2651 ,  G11B5/3103 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/4886 ,  G11B5/024 ,  G11B5/23 ,  G11B5/313 ,  G11B5/553 ,  Y10T29/49044 ,  Y10T29/49046

Abstract: A method for fabricating a dual element head is disclosed. One embodiment includes first depositing a first head element upon a substrate and second depositing a second head element upon the first head element. Each of the depositing steps includes a tolerance that is independent of the other. In the second depositing step, the functional width of the second head element (i.e., the write width if the second head element is a write element) is made wider than a desired functional width for the second head element. The second head element is then trimmed to substantially achieve the desired functional width while using a portion of the first head element as a reference to reduce errors associated with the independent nature of the first and second tolerances. For instance, the portion of the first head element used as a reference can be an edge of a magnetoresistive (MR) read element that defines the read width of the read element. Preferably, the trimming step includes creating erase notches on a portion of the write element that are capable of erasing data from a recording medium. Thereafter, second notches that are deeper than the erase notches and hence less capable of erasing data than the erase notches are created next to the erase notches to adjust the width of the erase notches. It is also preferred that the first head element and the second head element include an air bearing surface that resides substantially in the x-z plane, and that the second head element is trimmed by a focussed ion beam from a direction that includes a y-component to adjust the width of the second head element in the z-direction.

Abstract translation: 公开了一种用于制造双元件头的方法。 一个实施例包括首先将第一头部元件沉积在基底上，并且将第二头部元件第二沉积在第一头部元件上。 每个沉积步骤包括独立于另一个的公差。 在第二沉积步骤中，使得第二头元件的功能宽度（即，如果第二头元件是写元件的写入宽度）比第二头元件的期望功能宽度宽。 然后修剪第二头元件以基本上实现期望的功能宽度，同时使用第一头元件的一部分作为参考，以减少与第一和第二公差的独立性质相关联的误差。 例如，用作参考的第一头元件的部分可以是限定读取元件的读宽度的磁阻（MR）读取元件的边缘。 优选地，修剪步骤包括在写入元件的能够从记录介质擦除数据的部分上产生擦除陷波。 此后，在擦除凹口旁边创建比擦除凹口更深的第二凹口，因此比擦除凹口更少能够擦除数据，以调整擦除凹口的宽度。 还优选的是，第一头元件和第二头元件包括基本上位于xz平面中的空气支承表面，并且第二头元件由聚焦离子束从包括y分量的方向修剪到 调整第二头元件在z方向上的宽度。

公开(公告)号：US5624730A

公开(公告)日：1997-04-29

申请号：US414716

申请日：1995-05-17

Applicant: Makoto Wakasugi ,  Chiaki Hara

Inventor： Makoto Wakasugi ,  Chiaki Hara

IPC: G11B5/10 ,  G11B5/105 ,  G11B5/265

CPC classification number: G11B5/10 ,  G11B5/105 ,  G11B5/2651 ,  Y10S428/90 ,  Y10T29/49037 ,  Y10T29/49041 ,  Y10T428/24298 ,  Y10T428/24314 ,  Y10T428/24479

Abstract: A magnetic head is manufactured by the steps of accommodating a core chip blank into an elongated hole provided in a slider blank, joining the core chip blank and the slider blank together with glass and then grinding the surface to form a surface which makes sliding-contact with a recording medium. Glass for joining the core chip blank and the slider blank together is obtained by melting a glass rod mounted in a predetermined position on the slider blank. In order to prevent the core chip from being positionally moved by surface tension of the molten glass when the glass rod is melted, the edges of the elongated hole are partially provided with protrusions for positioning the glass rod so as to prevent surface tension of the molten glass from positionally moving the core chip.

Abstract translation: 通过以下步骤制造磁头：将芯片坯件容纳在设置在滑块坯件中的长孔中，将芯片坯料和滑块坯件与玻璃一起接合，然后研磨表面以形成滑动接触 与记录介质。 通过熔化安装在滑块坯件上的预定位置的玻璃棒来获得用于将芯片坯料和滑块坯件连接在一起的玻璃。 为了防止当玻璃棒熔化时芯片由于熔融玻璃的表面张力而位置移动，细长孔的边缘部分地设置有用于定位玻璃棒的突起，以防止熔融玻璃的表面张力 从位置移动核心芯片的玻璃。

公开(公告)号：US4854036A

公开(公告)日：1989-08-08

申请号：US231826

申请日：1988-08-12

Applicant: Germano DiGregorio

Inventor： Germano DiGregorio

IPC: G11B5/105 ,  G11B5/265 ,  G11B5/48

CPC classification number: G11B5/48 ,  G11B5/105 ,  G11B5/2651 ,  Y10T29/4903 ,  Y10T29/49901 ,  Y10T29/49902 ,  Y10T29/53196 ,  Y10T29/53261

Abstract: The apparatus and method for assembling magnetic tape drive read/write head modules of the present invention uses an assembly fixture that enables a worker to completely assemble and align the read/write head module in a single step process. This is accomplished by providing an assembly fixture that securely holds the rectangular shaped read/write head frame in a fixed position. A read head and write head alignment tool is pivotally attached to the assembly fixture for magnetically suspending the read head and write head in the rectangular shaped opening in the read/write head frame in a predetermined position. This alignment tool includes an aperture such that the worker can view the transducing gaps on the read head and the write head for alignment purposes. Two sets of threaded rods are included in this assembly apparatus to modify the lateral position of the read head and the write head such that the transducing gaps on these two heads are in exact alignment with respect to each other. Once the alignment process is completed, a leaf spring is inserted between one inner wall of the rectangular shaped read/write head frame and the read/write heads and the read and write heads are adhesively secured to each other to maintain the alignment of their transducing gaps.

Abstract translation: 本发明的磁带驱动器读/写头模块的组装装置和方法采用组装夹具，使工作人员可以在一个单一步骤中完全组装和对准读/写模块。 这是通过提供一种将矩形读/写头框牢固地保持在固定位置的装配夹具来实现的。 读头和写头对准工具枢转地附接到组装夹具，用于将读头和写头磁头悬挂在读/写头框架中的矩形开口中在预定位置。 该对准工具包括孔，使得工作人员可以观察读取头和写入头上的换能间隙用于对准目的。 该组装装置中包括两组螺纹杆，以改变读头和写头的横向位置，使得这两个头上的换能间隙相对于彼此精确对准。 一旦对准过程完成，将板簧插入在矩形读/写头框架的一个内壁和读/写头之间，并且读写头被彼此粘合地固定以保持它们的转换 差距

公开(公告)号：US4831481A

公开(公告)日：1989-05-16

申请号：US886205

申请日：1986-07-15

Applicant: Fumitoshi Toyoshima

Inventor： Fumitoshi Toyoshima

IPC: G11B5/29 ,  G11B5/265

CPC classification number: G11B5/2651

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4769728A

公开(公告)日：1988-09-06

申请号：US5827

申请日：1987-01-21

Applicant: Humitoshi Toyoshima ,  Shoichi Koyama

Inventor： Humitoshi Toyoshima ,  Shoichi Koyama

IPC: G11B5/147 ,  G11B5/265 ,  G11B5/12 ,  G11B5/25 ,  G11B5/251

CPC classification number: G11B5/2651

Abstract: A magnetic head comprising a pair of erasing cores, a coupling body coupling the pair of erasing cores together, the coupling body having a groove, and a recording and reproducing core fitted into the groove in the coupling body so as to form an erasing gap on each side of the recording and reproducing core. At least the periphery of the groove is formed by a nonmagnetic material having a glass erosion resistance.

Abstract translation: 一种磁头，包括一对擦除芯，耦合体，该耦合体将一对擦除芯耦合在一起，耦合体具有凹槽，以及记录和再现磁芯，其装配在耦合体中的凹槽中，以便形成擦除间隙 记录和再现核心的每一面。 至少槽的周边由具有耐玻璃侵蚀性的非磁性材料形成。

公开(公告)号：US4748527A

公开(公告)日：1988-05-31

申请号：US791530

申请日：1985-10-25

Applicant: Yoshiharu Fujioka ,  Shoji Tsutaki ,  Mitsuo Katoh ,  Hiroyuki Itou ,  Toshinobu Yoshida

Inventor： Yoshiharu Fujioka ,  Shoji Tsutaki ,  Mitsuo Katoh ,  Hiroyuki Itou ,  Toshinobu Yoshida

IPC: G11B5/10 ,  G11B5/265 ,  G11B5/48 ,  G11B5/11

CPC classification number: G11B5/4826 ,  G11B5/10 ,  G11B5/2651

Abstract: A magnetic head device according to the present invention comprises a head core formed of a magnetic material. The head core includes a sliding portion having a magnetic gap defined therein and adapted to be in sliding contact with a magnetic record medium, and a pair of leg portions formed integrally with the sliding portion. A coil is wound around one of the leg portions of the head core. The head core is held between a pair of holder shells, which each have one end coupled to the sliding portion of the head core and the other end extending toward the other ends of the two leg portions of the head core to be coupled thereto. At least one of the holder shells is formed integrally with a connecting portion which, formed of a magnetic material, constitutes part of the other end of the holder shell, so that the connecting portion and the head core define a closed magnetic path passing through the magnetic gap.

Abstract translation: 根据本发明的磁头装置包括由磁性材料形成的磁头芯。 头芯包括具有限定在其中并适于与磁记录介质滑动接触的磁隙的滑动部分和与滑动部分一体形成的一对腿部。 线圈缠绕在磁头磁芯的一个腿部上。 头部芯部保持在一对保持器壳体之间，每个保持器壳体的一端连接到头部芯部的滑动部分，另一端朝向与其连接的头部芯部的两个腿部的另一端延伸。 保持器壳体中的至少一个与由磁性材料形成的连接部分一体地形成，该连接部分构成保持器壳体的另一端的一部分，使得连接部分和头部芯部限定了通过 磁隙。

公开(公告)号：US4044392A

公开(公告)日：1977-08-23

申请号：US604689

申请日：1975-08-14

Applicant: George W. Brock ,  Frank B. Shelledy ,  Arthur B. Wills

Inventor： George W. Brock ,  Frank B. Shelledy ,  Arthur B. Wills

IPC: G11B5/133 ,  G11B5/265 ,  G11B5/29 ,  G11B5/39 ,  G11B5/221

CPC classification number: G11B5/133 ,  G11B5/2651 ,  G11B5/29 ,  G11B5/39 ,  Y10T29/49055 ,  Y10T29/49064

Abstract: Write windings are deposited on a ferrite half yoke mounted on a titanium body, and magnetoresistive elements are deposited on another ferrite half yoke mounted on another titanium body. A center section comprising a sandwich of silver-copper shielding material between two ferrite sheets has glass-filled slots cut on one side thereof. The center shield is placed between the write and read sides with the write windings placed between pairs of glass-filled slots and with the magnetoresistive elements in contact with the opposite surface of the center shield. The write windings and the magnetoresistive elements are connected to connector blocks prior to final assembly, and the write and read sides and the center section are pressured together by bolts through two end pieces, forming a vise-like structure.

Abstract translation: 写入绕组沉积在安装在钛体上的铁氧体半轭上，并且磁阻元件沉积在另一个安装在另一个钛体上的铁氧体半轭上。 在两个铁氧体片之间包括银 - 铜屏蔽材料夹层的中心部分具有在其一侧切割的玻璃填充槽。 中心屏蔽被放置在写入和读取侧之间，写入绕组位于成对的玻璃填充槽之间，并且磁阻元件与中心屏蔽件的相对表面接触。 写入绕组和磁阻元件在最终组装之前连接到连接器块，并且写入和读取侧面和中心部分通过螺栓通过两个端部件一起加压在一起，形成虎钳状结构。