专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明公开

EP0105460A2 Method of bonding ceramic bodies together with glass 失效
标题翻译： Verfahren zum Verbinden von Keramikteilen miteinander durch Glas。
公开(公告)号：EP0105460A2
公开(公告)日：1984-04-18
申请号：EP83109670.6
申请日：1983-09-28
申请人： International Business Machines Corporation
发明人： Argumedo, Armando Jesus , Gniewek, John James , Powell, Jimmie Lee , Rigby, Eugene Bertrand
IPC分类号： C04B37/00 , G11B5/235
CPC分类号： G11B5/105 , C04B37/005 , C04B2235/6565 , C04B2237/10 , C04B2237/34 , C04B2237/64 , C04B2237/84 , G11B5/1335 , G11B5/232
摘要： In a method of bonding ceramic bodies together by causing molten glass to flow between the surfaces to be bonded and cooling the glass to ambient temperature, the glass is heated to a temperature in excess of a low stress anneal temperature of the glass, and the glass is quickly cooled from the low stress anneal temperature to ambient temperature at a rate greater than about 5°C/minute.
摘要翻译：在通过使熔融玻璃在待接合的表面之间流动并将玻璃冷却至环境温度的方法将陶瓷体接合在一起，将玻璃加热到超过玻璃的低应力退火温度的温度，并且玻璃以大于5℃/分钟的速率从低应力退火温度快速冷却至环境温度。

22. 发明公开

EP0030625A3 Ferrite core magnetic head assembly 失效
标题翻译：铁素体磁头组件
公开(公告)号：EP0030625A3
公开(公告)日：1981-08-26
申请号：EP80107023
申请日：1980-11-14
申请人： International Business Machines Corporation
发明人： Argumedo, Armando Jesus , Brock, George William , Losee, Paul Dee
IPC分类号： G11B05/14 , G11B05/42 , G11B05/60
CPC分类号： G11B5/255 , G11B5/1335 , G11B5/193 , Y10T29/49041 , Y10T29/49055 , Y10T29/49057
摘要： A magnetic head assembly includes a ferrite core (10) sandwiched between two ceramic layers (12, 14). Alumina films (11, 13, 15, 17) are deposited by sputtering on the sides of the ferrite core and on the ceramic layers in one embodiment, and on the ferrite core only in another embodiment, which are then bonded to form an integral head assembly. Slots (20, 22, 24, 26) to provide flying height control are formed in the air bearing surface of the ceramic layers. The process of making the assembly includes the steps of sputter etching the ferrite and ceramic prior to the deposition of the alumina.
摘要翻译：磁头组件包括夹在两个陶瓷层之间的铁氧体磁芯。氧化铝膜通过溅射沉积在铁氧体磁芯的侧面和陶瓷层的一个结构中，并且在铁氧体磁芯上仅在另一结构中沉积，然后将其结合以形成一体的磁头组件。在陶瓷层的空气轴承表面形成有提供飞行高度控制的槽。制造组件的过程包括在氧化铝沉积之前溅射刻蚀铁素体和陶瓷的步骤。

23. 发明授权

KR1019900000628B1 자기 헤드 失效
标题翻译：磁头
公开(公告)号：KR1019900000628B1
公开(公告)日：1990-02-01
申请号：KR1019850008736
申请日：1985-11-20
申请人： 닛폰 비구타 가부시키가이샤
发明人： 고야마마사다까
IPC分类号： G11B5/147 , G11B5/235
CPC分类号： G11B5/193 , G11B5/127 , G11B5/1335 , G11B5/232 , Y10T29/49048 , Y10T29/49055
摘要： A magnetic head is useful for recording and/or playing back signals on/from a magnetic recording medium and has two magnetic core halves, which are placed in a holder with a spacer to fix the head gap, and an elongated area, transverse to the gap, over which the tape passes. The novel feartures are that the spacer has the same crystal structure as the two halves of the magnetic head and consists of a nonmagnetic material, which contains the same main components as these. The spacer is welded to the first and second halves by a solid state reaction by a recrystallisation welding process. The magnetic head has excellent durability and good operating properties and its magnetic properties are not impared.
摘要翻译：磁头可用于在/从磁记录介质上记录和/或重放信号，并且具有两个磁芯半部，这两个磁芯半部被放置在具有间隔件的固定器中以固定磁头间隙，并且延伸区域横向于间隙，磁带通过。新颖的优点是间隔物具有与磁头的两半相同的晶体结构，并且由非磁性材料组成，其包含与这些相同的主要组分。间隔件通过再结晶焊接工艺通过固态反应焊接到第一和第二半部。磁头具有优异的耐久性和良好的操作性能，并且其磁性不受影响。

24. 发明申请

US20190221229A1 SELECTABLE WRITERS FOR REDUCED PERFORMANCE VARIANCE, AND SELECTION METHOD THEREOF 审中-公开
公开(公告)号：US20190221229A1
公开(公告)日：2019-07-18
申请号：US16360770
申请日：2019-03-21
申请人： Seagate Technology LLC
发明人： Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
IPC分类号： G11B5/127 , G11B27/36 , G11B7/00
CPC分类号： G11B5/1272 , G11B5/012 , G11B5/1278 , G11B5/1335 , G11B5/265 , G11B5/3116 , G11B5/3163 , G11B5/4886 , G11B5/50 , G11B7/00 , G11B20/10388 , G11B27/36
摘要： A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.

25. 发明授权

US09865301B1 Selectable magnetic writers of different target geometries for reducing performance variance 有权
公开(公告)号：US09865301B1
公开(公告)日：2018-01-09
申请号：US14996833
申请日：2016-01-15
申请人： Seagate Technology LLC
发明人： Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
IPC分类号： G11B21/02 , G11B20/18 , G11B27/36 , G11B5/127 , G11B5/31 , G11B5/133
CPC分类号： G11B5/1272 , G11B5/1335 , G11B5/3116 , G11B5/3163 , G11B7/00 , G11B20/10388 , G11B27/36
摘要： A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.

26. 发明授权

US5764455A Magnetic head 失效
标题翻译：磁头
公开(公告)号：US5764455A
公开(公告)日：1998-06-09
申请号：US789381
申请日：1997-01-28
申请人： Toru Matsunaga , Astushi Suzuki , Takashi Tamura , Akira Urai
发明人： Toru Matsunaga , Astushi Suzuki , Takashi Tamura , Akira Urai
IPC分类号： G11B5/133 , G11B5/187 , H01F10/20
CPC分类号： G11B5/1335
摘要： This invention provides a magnetic head suitably used for replay because of its giving a high output with a low noise. A magnetic head suitable for replay is provided which is made of a pair of magnetic cores 1 and 2 facing each other with a magnetic gap g.sub.1, in between and composed of composite ferrites consisting of monocrystal ferrites 9 and 11, and polycrystal ferrites 10 and 12 each containing 52-54 mol % of Fe.sub.2 O.sub.3, 24-26 mol % of ZnO and 20-24 mol % of MnO. Further, the monocrystal ferrites 9 and 11 are allowed to take the same orientation with a so-called VHS direction. Furthermore, the fusion glass 3 to bond the magnetic cores 1 and 2 is allowed to have a linear thermal expansion coefficient less by 20.times.l0.sup.-7 -26.times.10.sup.-7 than that of the composite ferrites composing the magnetic cores 1 and 2, at temperatures from 100.degree. to 350.degree. C.
摘要翻译：本发明提供了一种适于用于重放的磁头，因为它具有低噪声的高输出。提供一种适用于重放的磁头，它由一对磁芯1和2组成，磁芯1和2之间由磁隙g1组成，由单晶铁氧体9和11组成的复合铁氧体和多晶铁氧体10和12组成每个含有52-54mol％的Fe2O3，24-26mol％的ZnO和20-24mol％的MnO。此外，允许单晶铁氧体9和11以所谓的VHS方向取相同的取向。此外，使粘合磁芯1和2的熔融玻璃3的线性热膨胀系数比构成磁芯1和2的复合铁氧体的线性热膨胀系数小20×10 -7〜26×10 -7，在100℃ DEG至350℃

27. 发明授权

US5576912A Floating magnetic head with reduced magnetostriction vibration noise 失效
标题翻译：具有降低的磁致伸缩振动噪声的浮动磁头
公开(公告)号：US5576912A
公开(公告)日：1996-11-19
申请号：US240813
申请日：1994-05-11
申请人： Chiharu Mitsumata , Masanobu Yamazaki , Ryo Goto
发明人： Chiharu Mitsumata , Masanobu Yamazaki , Ryo Goto
IPC分类号： G11B5/127 , G11B5/105 , G11B5/133 , G11B5/187 , G11B5/48 , G11B5/60
CPC分类号： G11B5/105 , G11B5/133 , G11B5/1335 , G11B5/4886 , G11B5/6005 , Y10S428/90 , Y10T428/1171
摘要： In a floating magnetic head, noises produced at the time of reproduction are reduced, thereby enhancing the precision of detection of a track position. The floating magnetic head uses a monocrystal magnetic material constituting an electromagnetic transducer element, and a crystal orientation of the monocrystal magnetic material in the electromagnetic transducer element is parallel to a direction of travel of a medium. In the case of .vertline..lambda..sub.111 .vertline.+2.times.10.sup.-6 .ltoreq..vertline..lambda..sub.100 .vertline., the crystal orientation is in the range of a solid angle of 3.multidot.sin.theta..multidot.cos.phi. which satisfies 0.ltoreq..theta. and . The monocrystal magnetic material is a monocrystal MnZn ferrite whose chemical composition is represented by 20.ltoreq.MnO.ltoreq.40, 10.ltoreq.ZnO.ltoreq.25 50.ltoreq.Fe.sub.2 O.sub.3 .ltoreq.65 in terms of mol. %.
摘要翻译：在浮动磁头中，在再现时产生的噪声减小，从而提高轨道位置的检测精度。浮动磁头使用构成电磁换能器元件的单晶磁性材料，并且电磁换能器元件中的单晶磁性材料的晶体取向平行于介质的行进方向。在|的情况下 lambda 111 | + 2x10-6 / = | λ100 | + 2x×10-6，晶体取向在满足0 <θ<10度且0 <= = phi <360度[100]周围的sinθxcos phi的立体角范围内，其中λ111和λ100分别表示单晶磁性材料沿方向<111>和<100>的线性磁致伸缩常数。单晶磁性材料是一种单晶MnZn铁氧体，其化学成分以摩尔计，以20摩尔表示为20≤n≤40,10≤Zu≤2550 = Fe 2 O 3 65。％。

28. 发明授权

US5025343A Magnetic head core utilizing a non-magnetic layer 失效
标题翻译：磁头芯采用非磁性层
公开(公告)号：US5025343A
公开(公告)日：1991-06-18
申请号：US564186
申请日：1990-08-08
申请人： Shinzi Iida , Fuminori Takeya , Shinya Aoki
发明人： Shinzi Iida , Fuminori Takeya , Shinya Aoki
IPC分类号： G11B5/133 , G11B5/193 , G11B5/23
CPC分类号： G11B5/232 , G11B5/1335 , G11B5/193 , Y10T29/49048 , Y10T29/49055
摘要： A magnetic head core having a generally annular structure with an inner coil-winding aperture, and a magnetic gap which has a predetermined width and which is formed so as to extend in a direction across the annulus of the annular structure. The annular structure is formed by a plurality of ferrite core elements bonded together by direct solid-solid reaction bonding, with a non-magnetic layer of SiO or SiO.sub.2 interposed between two opposed portions of the ferrite core elements which define the magnetic gap. The non-magnetic layer defines the width of the magnetic gap.

29. 发明授权

US4878141A Solid-phase welded magnetic head 失效
标题翻译：固相焊磁头
公开(公告)号：US4878141A
公开(公告)日：1989-10-31
申请号：US228679
申请日：1988-08-05
申请人： Masataka Koyama
发明人： Masataka Koyama
IPC分类号： G11B5/235 , G11B5/127 , G11B5/133 , G11B5/147 , G11B5/193 , G11B5/23
CPC分类号： G11B5/193 , G11B5/127 , G11B5/1335 , G11B5/232 , Y10T29/49048 , Y10T29/49055
摘要： Disclosed is a magnetic head comprising first and second magnetic core halves held in abutment against each other and a gap-defining spacer interposed therebetween, and having an elongated tape-contact surface extending across said gap-defining spacer. The gap-defining spacer has the same crystal structure as that of said first and second core halves and is made of a non-magnetic material including the same principal component as those of said first and second cores halves. The gap-defining spacer is welded to said first and second core halves in accordance with a solid-phase welding method based on a solid-phase reaction.
摘要翻译：公开了一种磁头，其包括保持彼此抵接的第一和第二磁性半部以及插入其间的间隙限定衬垫，并且具有延伸穿过所述间隙限定衬垫的细长带状接触表面。间隙限定垫片具有与所述第一和第二芯半部相同的晶体结构，并且由与所述第一和第二芯部半部分相同的主要成分的非磁性材料制成。根据基于固相反应的固相焊接方法将间隙限定间隔件焊接到所述第一和第二半部。

30. 发明授权

US4298899A Magnetic head assembly with ferrite core 失效
标题翻译：磁头组件采用铁氧体磁芯
公开(公告)号：US4298899A
公开(公告)日：1981-11-03
申请号：US103968
申请日：1979-12-17
申请人： Armando J. Argumedo , George W. Brock , Paul D. Losee
发明人： Armando J. Argumedo , George W. Brock , Paul D. Losee
IPC分类号： G11B5/133 , G11B5/193 , G11B5/255 , G11B5/22 , G11B5/42
CPC分类号： G11B5/255 , G11B5/1335 , G11B5/193 , Y10T29/49041 , Y10T29/49055 , Y10T29/49057
摘要： A magnetic head assembly includes a ferrite core sandwiched between two ceramic layers. Alumina films are deposited by sputtering on the sides of the ferrite core and on the ceramic layers in one structure, and on the ferrite core only in another structure, which are then bonded to form an integral head assembly. Slots to provide flying height control are formed in the air bearing surface of the ceramic layers. The process of making the assembly includes the steps of sputter etching the ferrite and ceramic prior to the deposition of the alumina.
摘要翻译：磁头组件包括夹在两个陶瓷层之间的铁氧体磁芯。氧化铝膜通过溅射沉积在铁氧体磁芯的侧面和陶瓷层的一个结构中，并且在铁氧体磁芯上仅在另一结构中沉积，然后将其结合以形成一体的磁头组件。在陶瓷层的空气轴承表面形成有用于提供飞行高度控制的槽。制造组件的过程包括在沉积氧化铝之前溅射刻蚀铁素体和陶瓷的步骤。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式