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105 条记录 (耗时 0.011 秒)

    MULTITRACK MAGNETIC HEAD
    11.
    发明公开
    MULTITRACK MAGNETIC HEAD 失效
    更多曲目磁头。

    公开(公告)号：EP0185657A1

    公开(公告)日：1986-07-02

    申请号：EP84902672.0

    申请日：1984-06-28

    申请人： EASTMAN KODAK COMPANY (a New Jersey corporation)

    发明人： LEMKE, James, Underwood

    IPC分类号： G11B5 ,  G11B15

    CPC分类号： G11B5/31 ,  G11B5/17 ,  G11B5/29 ,  G11B5/3103 ,  G11B5/4907

    摘要： Des techniques de dépôt de film magnétique et de structuration de circuits par lots sont combinées sur un substrat semi-conducteur commun (10) (puce) aussi bien pour le circuit que pour les composants de la tête. Dans chaque tête formée, le substrat est dopé et métallisé de manière à former les circuits électroniques (12, 14) destinés à agir de concert avec la tête; des films minces (16) (noyaux) de matériau magnétique sont ensuite déposés sur le substrat semi-conducteur pour agir de concert avec les circuits électroniques. Après la création d'entrefers appropriés dans les noyaux de la tête à films minces, un joug (commun) (56) est mis en contact avec les noyaux, le substrat étant contourné par la suite à travers son côté inférieur pour exposer les entrefers des noyaux à films minces.

    A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof
    13.
    发明公开
    A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof 失效
    组装用于与多个堆叠和制造工艺的单片多通道磁换能器。

    公开(公告)号：EP0116450A2

    公开(公告)日：1984-08-22

    申请号：EP84300702.2

    申请日：1984-02-03

    申请人： AMPEX CORPORATION

    发明人： Milo, Richard K.

    IPC分类号： G11B5/29 ,  G11B5/127

    CPC分类号： G11B5/295 ,  G11B5/29 ,  Y10T29/49028 ,  Y10T29/49048 ,  Y10T29/49057

    摘要： A plurality of magnetic blocks (10a, 10b, 10c) is integrally joined side-by-side with a nonmagnetic material therebetween to provide an effectively monolithic block (10) defining parallel transducing gap planes, each pertaining to one multichannel transducer stack. A plurality of first parallel slots (21, 22, 23) in the monolithic block intersects the gap planes to define a plurality of partitions, each partition forming pairs of magnetic pole pieces (46, 47) defining respective transducing gaps pertaining to respective stacks. The transducing gaps of each partition define interlaced transducing channels of the multichannel assembly. Second parallel slots (40-42) provided along the gap planes have apexes defining transducing gap depths. The resulting transducing channels have uniform gap azimuth and gap depth while uniform internal stack alignment between all the respective stacks is obtained.

    Magnetic head for high track density
    15.
    发明公开
    Magnetic head for high track density 失效
    磁头高磁道密度。

    公开(公告)号：EP0052392A1

    公开(公告)日：1982-05-26

    申请号：EP81201205.2

    申请日：1981-10-29

    申请人： Philips Electronics N.V.

    发明人： Van Herk, Alfred

    IPC分类号： G11B5/25

    CPC分类号： G11B5/29 ,  G11B5/23 ,  G11B5/488

    摘要： A magnetic head (31) for writing and/or reading information in mutually parallel tracks of a magnetic recording medium (32) with high track density. By causing the transducing gap (34) of the head (31) to be bevelled in the depth, the lateral cross-talk in particular is reduced, at least in a given wavelength range where the wavelength is of the same order of magnitude as the gap depth (d). The transducing gap bevel makes an angle which is not greater than 45° with the face of the head facing the recording medium during operation.

    Multitrack magnetic head and method of manufacture thereof
    16.
    发明公开
    Multitrack magnetic head and method of manufacture thereof 失效
    Vielspur-Magnetkopf und Verfahren zu dessen Herstellung。

    公开(公告)号：EP0047383A1

    公开(公告)日：1982-03-17

    申请号：EP81105738.9

    申请日：1981-07-21

    申请人： International Business Machines Corporation

    发明人： Chow, William Wai-Chung ,  Fields, Davis Stuart, Jr.

    IPC分类号： G11B5/28 ,  G11B5/42

    CPC分类号： G11B5/29 ,  G11B5/295 ,  Y10T29/49048 ,  Y10T29/49055

    摘要： A multipletrack magnetic head (38) has a closure section (26) comprising a ceramic substrate (30) to one surface of which are bonded equal width, closely spaced ferrite blocks (28). The blocks are bonded together and to the substrate by glass (33). A ferrite wafer (32) is bonded to the side of the closure section by cement (34) to form transducing gaps for a multiplicity of spaced magnetic head elements.
    Closure sections for such heads are cut from an assembly comprising a ceramic substrate to which are bonded two interdigitated ferrite pieces with alternating complementary slots and fingers, the fingers of one piece being in the slots of the other piece. The ferrite pieces are bonded together and to the substrate by glass bonding. Each closure section is joined to a ferrite wafer, so that the wafer and closure section define a transducing gap therebetween.

    摘要翻译： 多重磁道磁头（38）具有封闭部分（26），该封闭部分（26）包括陶瓷基板（30），其一个表面被接合在相等的宽度紧密间隔的铁氧体块（28）上。 这些块通过玻璃（33）粘合在一起并附着在基板上。 铁氧体晶片（32）通过水泥（34）结合到封闭部分的侧面，以形成用于多个间隔开的磁头元件的换能间隙。 ...这种头部的封闭部分从包括陶瓷基底的组件切割，陶瓷基底与交替的互补狭缝和指状物接合两个叉指铁氧体片，一件的手指在另一件的槽中。 铁氧体片通过玻璃接合结合在一起并与衬底结合。 每个封闭部分连接到铁氧体晶片，使得晶片和封闭部分在它们之间限定换能间隙。

    Multichannel magnetic
    17.
    发明公开
    Multichannel magnetic 失效
    Mehrkanal-Magnetkopf。

    公开(公告)号：EP0032740A2

    公开(公告)日：1981-07-29

    申请号：EP81100319.3

    申请日：1981-01-16

    申请人： OLYMPUS OPTICAL CO., LTD.

    发明人： Sakurai, Yoshifumi

    IPC分类号： G11B5/37 ,  G11B5/127

    CPC分类号： G11B5/372 ,  G11B5/29 ,  G11B5/4946

    摘要： Disclosed is a multichannel magnetic head having magnetic circuits for respective channels, each positioned to traverse a magnetic flux (φ) to be detected, and a Hall element disposed in the magnetic circuits and used as magnetic-electric converter. The Hall element (14) is an amorphous magnetic thin film which consists essentially of an alloy containing a rare earth element (e.g. Gd) and a transition metal (e.g. Co). To the amorphous magnetic thin film (14) there are connected to a pair of current terminals (20, 22) and Hall voltage terminals (16)-16 4 ). The Hall voltage terminals are provided in the same numbers as the channels or the magnetic circuits (7 1 -7 4 ).

    摘要翻译： 公开了一种具有用于相应通道的磁路的多通道磁头，每个通道定位成穿过待检测的磁通（phi），以及设置在磁路中并用作磁 - 电转换器的霍尔元件。 霍尔元件（14）是非晶磁性薄膜，其基本上由含有稀土元素（例如Gd）和过渡金属（例如Co）的合金组成。 对于非晶磁性薄膜（14），连接有一对电流端子（20,22）和霍尔电压端子（161-164）。 霍尔电压端子以与电路（71-74）相同的编号提供。