公开(公告)号：WO1988004093A1

公开(公告)日：1988-06-02

申请号：PCT/FR1987000455

申请日：1987-11-18

Applicant: COMPAGNIE EUROPEENNE DE COMPOSANTS ELECTRONIQUES ... ,  CHABROLLE, Jacques

Inventor： COMPAGNIE EUROPEENNE DE COMPOSANTS ELECTRONIQUES ...

IPC: G11B05/127

CPC classification number: G11B5/21 ,  G11B5/187 ,  G11B5/255

Abstract: Magnetic monotrack or multitrack reading and/or writing head. The magnetic head comprises, for one magnetic track, two polar pieces separated by an air gap (15), each polar piece being housed in a lining made of non-magnetic material, the polar pieces and the lining having a common plane defining the active face of the head. The magnetic head also comprises a closing element (26) for closing the magnetic circuit supporting at least one coil (27).

Abstract translation: 磁单轨道或多轨阅读和/或书写头。 磁头包括一个磁道，由气隙（15）分开的两个极片，每个极片都容纳在由非磁性材料制成的衬里中，极片和衬里具有一个共同的平面，该平面限定有源 脸的头。 磁头还包括用于封闭支撑至少一个线圈（27）的磁路的闭合元件（26）。

公开(公告)号：EP0198120A3

公开(公告)日：1988-11-17

申请号：EP85115768

申请日：1985-12-11

Applicant: GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG.

Inventor： Eberle, Karl ,  Eckstein, Karl-Heinz ,  Kotter, Karl-Heinz Dipl.-Ing. Dipl.-Wirtsch.-Ing.

IPC: G11B05/127 ,  G11B05/147

CPC classification number: G11B5/127 ,  G11B5/187

Abstract: Es wird vorgeschlagen, bei einem Magnetkopf mit ei nem aus zwei Kernhälften bestehenden Kern, wobei die Kernhälften aus mehreren, voneinander isolierten weich magnetischen Schichten aufgebaut sind, und mit Kernträ gern, die jeweils beidseits der Kernhälften zur Stützung derselben angeordnet sind, die Kernträger aus weichma gnetischem Material aufzubauen und im Spaltbereich durch Einsetzen von nichtmagnetischen Materialien magnetische Nebenschlüsse zu vermeiden. Dadurch wird erreicht, daß es bei der Fertigung der Magnetköpfe unerheblich ist, ob die Kernhälften auch im Rückschlußbereich exakt zur Deckung kommen oder nicht.

Abstract translation: 对于具有包括两个半芯的芯的磁头，所述半芯由彼此绝缘的多个软磁层组成，并且具有芯支撑件，每个壳体布置在半芯的两侧以支撑 他们建议使用软磁材料的核心支撑，并通过在那里使用非磁性材料避免间隙区域的磁分流。 因此，即使在回磁区域中，半芯是否完全一致，磁头的制造是不重要的。

公开(公告)号：EP0179269A3

公开(公告)日：1988-07-06

申请号：EP85111724

申请日：1985-09-17

Applicant: Hitachi Maxell Ltd. ,  HITACHI, LTD.

Inventor： Inagoya, Osamu ,  Fujiwara, Hideo ,  Tottori, Takeshi ,  Yamano, Minoru ,  Kumasaka, Noriyuki ,  Otomo, Shigekazu ,  Kudo, Mitsuhiro ,  Morikawa, Juiti ,  Ishihara, Kiyoshi ,  Usui, Akira ,  Hayashi, Masashi

IPC: G11B05/127 ,  G11B05/187 ,  G11B05/21 ,  G11B05/265

CPC classification number: G11B5/3103 ,  G11B5/127 ,  G11B5/1878 ,  G11B5/21 ,  G11B5/265

Abstract: In a magnetic head having a pair of core halves each combined through a magnetic gap, each of the core halves comprising a core base having slanted side surfaces on the side opposing to the magnetic gap and a magnetic thin layer formed on the surfaces of the core base on the side opposing to the magnetic gap with magnetic material of high saturation magnetic flux density, the minimum value of sum of products of vertical cross sectional areas of the respective magnetic paths of each of the core halves except for the path of the magnetic gap and the respective saturation magnetic flux densities of the respective parts is greater than the product of the area of the magnetic gap and the saturation magnetic flux density of the magnetic thin layer.

公开(公告)号：EP0195628A3

公开(公告)日：1988-03-30

申请号：EP86301921

申请日：1986-03-17

Applicant: HITACHI, LTD.

Inventor： Ohta, Norio ,  Okamine, Shigenori ,  Sugita, Yutaka ,  Seo, Yosuke ,  Tamura, Takashi

IPC: G11B11/10 ,  G11B05/127

CPC classification number: G11B5/1278 ,  G11B11/10534 ,  G11B11/10547

Abstract: A magnetic head for magnetic writing and optical read-out has a main pole and an auxiliary pole (16) which are located adjacent a magnetic recording medium (14). The main pole is formed by first and second magnetic thin films (11,12), the first (11) of which has a high permeability and the second (12) has a magneto-optic effect (Faraday effect, Kerr effect). Furthermore, the second film (12) is positioned so as to be capable of being magnetized by the leakage magnetic field from the recording medium (14) and has an easy-magnetization axis parallel to its surface. In this way a magnetic head may be produced which has a high magneto-optical conversion efficiency, and hence good writing/ reproduction characteristics.

Abstract translation: 用于磁写和光读出的磁头具有位于磁记录介质（14）附近的主磁极和辅助磁极（16）。 主磁极由第一和第二磁性薄膜（11,12），其中第一个所述（11）具有高磁导率和第二（12）形成具有磁光效应（法拉第效应，克尔效应）。 此外，第二薄膜（12）被定位成能够被来自记录介质（14）的泄漏磁场磁化，并具有平行于其表面的易磁化轴。 以这种方式可以制造具有高磁 - 光转换效率，因此具有良好的写入/再现特性的磁头。

公开(公告)号：EP0175050A3

公开(公告)日：1987-07-29

申请号：EP85105348

申请日：1985-05-02

Applicant: GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG.

Inventor： Eckstein, Karlheinz ,  Kotter, Karl-Heinz, Dipl.-Ing. Dipl.-Wirtsch.-Ing.

IPC: G11B05/127

CPC classification number: G11B5/10 ,  G11B5/1272

Abstract: Es wird ein Magnetkopf und ein Verfahren zu seiner Herstellung beschrieben, bei dem Teilflächen zweier weich magnetischer Kernhälften aus amorphem Metall und ein weichmagnetischer Kernträger mit einer Glaseinlage im Spaltbereich Bandkontakt haben, und bei dem ein Verbin dungskörper (6) die Kernhälften (2a, 2b) mit dem Kernträ ger, der aus unterschiedlichen Kernträgerhälften (4, 5) be steht, vorspannungsfrei verbindet, wobei der Verbindungs körper mit dem Band nicht in Berührung gelangt.

公开(公告)号：EP0173977A3

公开(公告)日：1987-05-27

申请号：EP85110942

申请日：1985-08-30

Applicant: HONEYWELL INC.

Inventor： Ballinger, Dale O. ,  Chynoweth, William R. ,  Wade, Gerald J.

IPC: G11B05/127

CPC classification number: G11B5/4907 ,  G11B5/31

Abstract: A magnetostrictive record and playback head is disclosed which utilizes an acoustic wave (23) travelling along the surface (11) of piezoelectric material (10) so as to distort the surface thereof and to change the stress in a layer of magnetostrictive material (30, 50) along that surface at a point which depends upon the position of the travelling acoustic wave. At the point where the magnetostrictive material (30, 50) is changed, the material is magnetic so that a pulse in an adjacent conductor (40) will cause a flux to form that can deposit a magnetic signal on adjacent magnetic tape (70) (Fig. 1).

Abstract translation: 公开了一种磁致伸缩记录和重放头，其利用沿着压电材料表面行进的声波，以使其表面变形并改变沿着该表面的磁致伸缩材料层中的应力，该点取决于 行波声波。 在磁致伸缩材料被改变的地方，材料是磁性的，使得相邻导体中的脉冲将导致形成磁通以在相邻磁带上沉积磁信号。

公开(公告)号：WO1995015553A1

公开(公告)日：1995-06-08

申请号：PCT/RU1994000194

申请日：1994-08-18

Applicant: ENILENIS, Roman Igorevich ,  ENILENIS, Igor Stanislavovich

IPC: G11B05/127

CPC classification number: G11B5/00834 ,  G11B5/4915 ,  G11B5/493 ,  G11B15/1825

Abstract: The invention relates to data storage. The proposed method of writing data onto and reading them from a magnetic carrier (6) involves allowing a directional beam of electromagnetic radiation to act on the section (5) of the magnetic circuit (2) of the head which faces the carrier (6) to create a local reversible disturbance in the magnetic conductivity in the form of a virtual gap. The proposed head for carrying out this method comprises an electromagnetic radiation source (7) and a closed magnetic circuit (2) made of a magnetic substance with pronounced thermomagnetic properties. One section (3) of the magnetic circuit (2) has an electric winding (4) around it, while the other (5) faces the carrier (6) and is connected by means of a waveguide (7) to the electromagnetic radiation source (7).

Abstract translation: 本发明涉及数据存储。 所提出的将数据写入磁载体（6）并将其读取的方法涉及允许电磁辐射的定向波束作用在面向载体（6）的磁头的磁路（2）的部分（5）上， 以虚拟间隙的形式产生磁导率的局部可逆扰动。 所提出的用于执行该方法的头包括电磁辐射源（7）和由具有显着的热磁特性的磁性物质制成的闭合磁路（2）。 磁路（2）的一部分（3）在其周围具有电绕组（4），而另一个（5）面向载体（6）并且通过波导（7）连接到电磁辐射源 （7）。

公开(公告)号：WO1994022136A1

公开(公告)日：1994-09-29

申请号：PCT/US1994002620

申请日：1994-03-11

Applicant: DAS, Shyam, C.

IPC: G11B05/127

CPC classification number: G11B5/3173 ,  G11B5/105 ,  G11B5/127 ,  G11B5/1274 ,  G11B5/1475 ,  G11B5/17 ,  G11B5/1871 ,  G11B5/21 ,  G11B5/39 ,  G11B5/3967

Abstract: A metal in the gap (MIG) and thin film hybrid read/write head utilizes less magnetic material and thus possesses reduced inductance. The hybrid head is also less sensitive to throat height tolerances and better control is obtained over such geometrical parameters as gap and track. The hybrid head consists of an individual core (210), soft magnetic layer (201), non-magnetic layer (202), and C-cut (204). The hybrid head is manufactured by simplified, higher yielding techniques in a batch process.

Abstract translation: 间隙中的金属（MIG）和薄膜混合读/写头使用较少的磁性材料，因此具有降低的电感。 混合头对喉部高度公差也不太敏感，并且在诸如间隙和轨迹的几何参数上获得更好的控制。 混合头包括单个芯（210），软磁层（201），非磁性层（202）和C切割（204）。 混合头通过在批处理中简化的较高产量的技术制造。

公开(公告)号：WO1990009658A1

公开(公告)日：1990-08-23

申请号：PCT/EP1989001331

申请日：1989-11-07

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  DIEPERS, Heinrich

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G11B05/127

CPC classification number: G11B5/1278

Abstract: The magnetic head (2) contains a conducting element (5) which conducts the magnetic flux and which has two magnetic arms (6, 7) that delimit a narrow gap (20). Each magnetic arm has a magnetic pole (P1, P2) at a pole tip (8, 9) and each has a magnetic reinforcing layer (6b, 7b) outside the region of the pole tips. According to the invention, one magnetic arm (6) is provided with an additional pole layer (15) adjacent to the gap (20), and made of a material whose saturation magnetization (Ms') and/or relative permability ( mu ') are/is greater than those of the material of the other parts of the magnetic conducting body (5).

Abstract translation: 磁头（2）包含传导磁通的导电元件（5），并具有限定狭缝（20）的两个磁臂（6,7）。 每个磁臂在极尖（8,9）处具有磁极（P1，P2），并且每个磁极在磁极尖端的区域外均具有磁性增强层（6b，7b）。 根据本发明，一个磁臂（6）设置有与间隙（20）相邻的附加极层（15），并且由饱和磁化强度（Ms'）和/或相对可穿透性（μ'）的材料制成， 大于磁导体（5）的其他部分的材料的尺寸。

公开(公告)号：WO1990007772A1

公开(公告)日：1990-07-12

申请号：PCT/FR1989000657

申请日：1989-12-15

Applicant: THOMSON-CSF ,  MEUNIER, Paul-Louis ,  COUTELLIER, Jean-Marc

Inventor： THOMSON-CSF

IPC: G11B05/127

CPC classification number: G11B5/255 ,  G11B5/127 ,  G11B5/187 ,  G11B5/3163 ,  G11B5/3183 ,  Y10T29/49046 ,  Y10T29/49055

Abstract: Magnetic head produced in the following manner: a groove is formed in a substratum (1); a material (2, 2') having strong magnetic characteristics is deposited on the walls of the groove; a non-magnetic material is deposited in the bottom of the groove; the surface (16) of the substratum is machined until the non-magnetic material is reached in order to create an interstice (15); a part comprising a magnetic layer (40) is bonded against the side (10) of the substratum so as to constitute the magnetic circuit of the head. Applications: recording high-speed reading magnetic head.

Abstract translation: 以下列方式制造的磁头：在基体（1）中形成凹槽; 具有强磁特性的材料（2,2'）沉积在凹槽的壁上; 非磁性材料沉积在凹槽的底部; 基底的表面（16）被加工直到达到非磁性材料以产生间隙（15）; 包括磁性层（40）的部分被粘合在基底的侧面（10）上，以构成磁头的磁路。 应用：记录高速读磁头。