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公开(公告)号：US5585983A
公开(公告)日：1996-12-17
申请号：US747849
申请日：1991-08-20
CPC分类号： G11B5/332
摘要： A magnetic head comprises a substrate, a soft magnetic thin film, whose magnetic permeability varies according to the intensity of an external magnetic field applied thereto, formed over the surface of the substrate, means for supplying a high-frequency current to the soft magnetic thin film, and means for applying a bias magnetic field to the soft magnetic thin film. The magnetic permeability of the soft magnetic thin film varies according to the variation of the intensity of the external magnetic field and hence the potential difference between the opposite ends of the soft magnetic thin film with respect to the direction of flow of the high-frequency current varies accordingly. The variation of the potential difference is detected for magnetic signal reading. The soft magnetic thin film is formed of a material having a large magnetic permeability, such as amorphous CO.sub.75 Ta.sub.11 Zr.sub.14.
摘要翻译： 磁头包括基板，软磁薄膜，其磁导率根据施加到其上的外部磁场的强度而变化，形成在基板的表面上;用于向软磁薄层提供高频电流的装置 膜和用于向软磁薄膜施加偏置磁场的装置。 软磁性薄膜的磁导率根据外部磁场的强度的变化而变化，因此软磁性薄膜的相反端部相对于高频电流的流动方向的电位差 因此而变化。 磁信号读取检测电位差的变化。 软磁性薄膜由具有大磁导率的材料形成，例如无定形CO75Ta11Zr14。
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2.发明授权Magnetic reproducing head having a distributed-constant circuit type magnetic field detector 失效具有分布常数电路型磁场检测器的磁性再现头
公开(公告)号：US5365391A
公开(公告)日：1994-11-15
申请号：US842924
申请日：1992-02-27
摘要： A distributed-constant circuit type magnetic field detector which includes a magnetic member whose permeability varies with changes in a magnetic field applied thereto disposed at a point where a magnetic field is produced in a distributed-constant circuit excited with an electromagnetic wave and a detector for detecting a change in electromagnetic field distribution in the distributed-constant circuit produced by a variation in permeability of the magnetic member upon application thereto of a magnetic field to be detected.
摘要翻译： 一种分布常数电路式磁场检测器，包括磁性部件，该磁性部件的磁导率随施加于其上的磁场的变化而变化，所述磁场设置在由电磁波激发的分布常数电路中产生磁场的点处， 检测在应用待检测的磁场时由磁性部件的磁导率的变化产生的分布常数电路中的电磁场分布的变化。
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3.发明授权Magnetic head assembly having two heads with the magnetic layer of one head angled between 80 to 100 relative to the gap of the other head, and method and apparatus using same 失效具有两个磁头的磁头组件，其中一个磁头的磁性层相对于另一个磁头的间隙成角度在80到100之间，以及使用其的方法和装置
公开(公告)号：US5654844A
公开(公告)日：1997-08-05
申请号：US440490
申请日：1995-05-12
IPC分类号： G11B5/265 , G11B5/008 , G11B5/147 , G11B5/187 , G11B5/23 , G11B5/29 , G11B5/48 , G11B5/53 , G11B5/027
CPC分类号： G11B5/1872 , G11B5/00865 , G11B5/187 , G11B5/29 , G11B5/488 , G11B5/531 , G11B5/534
摘要： A magnetic head assembly having two heads with the magnetic layer of one angled between 80.degree. to 100.degree. of the gap of the other, and method and apparatus using same. The angle formed on a magnetic tape by side surfaces of a laminated magnetic film of the first magnetic head and the surfaces of a magnetic gap of the second magnetic head are between 80.degree. and 100.degree..
摘要翻译： 一种磁头组件，其具有两个磁头，磁层的一个角度在另一个的间隙的80°至100°之间，以及使用其的方法和装置。 第一磁头的叠层磁性膜的表面和第二磁头的磁隙表面在磁带上形成的角度为80°〜100°。
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公开(公告)号：US5331491A
公开(公告)日：1994-07-19
申请号：US847923
申请日：1992-03-09
CPC分类号： G11B5/33 , G11B5/1278
摘要： A magnetic recording and reproducing head records a signal from and reproduces a signal from a magnetic recording medium having a perpendicularly magnetizable film. The magnetic recording and reproducing head includes a magnetic sensing section comprising a slender needle of a soft magnetic material, and an exciting coil wound around the slender needle for magnetizing the slender needle to record a signal on the magnetic recording medium. To reproduced the recorded signal, high-frequency electric energy is applied to the magnetic sensing section to produce a reflected wave, and a change in the reflected wave caused by a leakage magnetic field produced by a signal recorded on the magnetic recording medium is detected as representing the recorded signal.
摘要翻译： 磁记录和再现头记录来自具有垂直磁化膜的磁记录介质的信号并再现信号。 磁记录和重放头包括一个磁感应部分，它包括一个软磁材料的细针，以及一个缠绕在细针上的激励线圈，用于磁化细针以在磁记录介质上记录信号。 为了再现记录的信号，将高频电能施加到磁感测部分以产生反射波，并且由记录在磁记录介质上的信号产生的泄漏磁场引起的反射波的变化被检测为 表示记录的信号。
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公开(公告)号：US5734534A
公开(公告)日：1998-03-31
申请号：US762721
申请日：1996-12-10
CPC分类号： G11B5/10 , G11B5/127 , G11B5/1272 , G11B5/147 , G11B5/17
摘要： A magnetic head is made by fixing together two head halves 9 and 39. Recesses 10 and 40 are formed in glass layers 4 and 34 on the substrates 1 and 31 respectively of the head halves, and spiral coil patterns 11 and 41 are formed in the recesses. Apart from their inner end portions 11a and 41a the coil patterns are covered by insulating protective films 23 and 53. A plurality of sloping surfaces 4b, 34b are formed on the glass layers 4 and 34 at the locations of the inner end portions of the coil patterns, whereby a plurality of projections 4a, 34a are formed. The angle of slope .theta. of the sloping surfaces is above 30.degree. and below 90.degree.. The coil patterns 11 and 41 comprise copper plating layers 19 and 39; because the coil pattern inner end portions lie on the projections 4a, 34a their surfaces are high and exposed at the surfaces of the insulating protective films 23, 53, and gold films 16 and 46 are formed thereon. These gold films connect to each other and connect the coil patterns 11 and 41 to form one coil.
摘要翻译： 磁头通过将两个半部分9和39固定在一起而形成。凹部10和40分别形成在前半部分的基板1和31上的玻璃层4和34中，螺旋线圈图案11和41形成在 凹槽 除了它们的内端部11a和41a之外，线圈图案被绝缘保护膜23和53覆盖。在线圈的内端部分的位置处，在玻璃层4和34上形成多个倾斜表面4b，34b 由此形成多个突起4a，34a。 倾斜面的倾角θ在30°以上，90°以下。 线圈图案11和41包括镀铜层19和39; 由于线圈图案内端部位于突出部4a，34a上，所以表面高，露出在绝缘保护膜23,53的表面，金膜16,46形成在其上。 这些金膜彼此连接并且连接线圈图案11和41以形成一个线圈。
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6.发明授权
公开(公告)号：US5796564A
公开(公告)日：1998-08-18
申请号：US578630
申请日：1996-01-05
CPC分类号： G11B5/3106 , G11B5/10 , G11B5/1475 , G11B5/17 , G11B5/3113
摘要： This invention has a principal object to eliminate, in a magnetic head and a method of manufacturing the same, the necessity of filling glass, etc. onto a magnetic film to thereby improve reliability of the magnetic head. This invention resides in a method of manufacturing a magnetic head including a pair of magnetic core half bodies opposite to each other, each of the magnetic core half bodies being such that a magnetic film is formed on a base, in which a thin film coil is formed at least at one surface of butting plane surfaces between these magnetic core half bodies, characterized in that, in forming the magnetic film on the base, recessed portions are formed in advance by ion milling, etc. at the base to form the magnetic film at the recessed portions. In this case, it is desirable that the magnetic film consists of a magnetic film having axis of easy magnetization in the depth direction of the magnetic gap and a magnetic film having axis of easy magnetization perpendicular to the axis of easy magnetization.
摘要翻译： PCT No.PCT / JP95 / 00884 Sec。 371日期1996年1月5日 102（e）日期1996年1月5日PCT提交1995年5月9日PCT公布。 公开号WO95 / 30984 日期：1995年11月16日本发明的主要目的是在磁头及其制造方法中消除将玻璃等填充到磁性膜上的必要性，从而提高磁头的可靠性。 本发明在于一种制造磁头的方法，所述磁头包括一对彼此相对的磁芯半体，每个磁芯半体使得在基底上形成磁性膜，其中薄膜线圈是 至少在这些磁芯半体之间的对接平面的一个表面上形成，其特征在于，在基底上形成磁性膜时，通过在基底处的离子铣削等预先形成凹部以形成磁性膜 在凹部处。 在这种情况下，理想的是，磁性膜由在磁隙的深度方向上容易磁化的轴的磁性膜和容易磁化的轴与容易磁化的轴垂直的磁性膜构成。
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7.发明授权Magnetic head assembly having two heads with the magnetic layer of one head angled between 80.degree. to 100.degree. relative to the gap of the other head 失效磁头组件具有两个磁头，一个磁头的磁性层相对于另一个磁头的间隙在80°至100°之间变化
公开(公告)号：US5844745A
公开(公告)日：1998-12-01
申请号：US828529
申请日：1997-03-31
IPC分类号： G11B5/265 , G11B5/008 , G11B5/147 , G11B5/187 , G11B5/23 , G11B5/29 , G11B5/48 , G11B5/53 , G11B5/027
CPC分类号： G11B5/1872 , G11B5/00865 , G11B5/187 , G11B5/29 , G11B5/488 , G11B5/531 , G11B5/534
摘要： A magnetic head assembly having two heads with the magnetic layer of one angled between 80 to 100.degree. of the gap of the other, and method and apparatus using same. The angle formed on a magnetic tape by side surfaces of a laminated magnetic film of the first magnetic head and the surfaces of a magnetic gap of the second magnetic head are between 80 and 100.degree..
摘要翻译： 一种磁头组件，其具有两个磁头，磁性层的一个角度在另一个的间隙的80至100°之间，以及使用其的方法和装置。 由第一磁头的叠层磁性膜的侧面和第二磁头的磁隙表面在磁带上形成的角度在80°和100°之间。
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公开(公告)号：US5786103A
公开(公告)日：1998-07-28
申请号：US672043
申请日：1996-06-26
IPC分类号： G11B5/31 , C22C38/00 , G11B5/127 , G11B5/147 , H01F10/13 , H01F10/14 , G11B5/66 , B32B9/00 , G11B5/70
CPC分类号： H01F10/131 , G11B5/147 , G11B5/3109 , Y10S428/90 , Y10T428/115
摘要： A soft magnetic film having a high saturation magnetic flux density and superior soft magnetic properties and capable of maintaining superior soft magnetic properties when worked to a magnetic head. The magnetic film is represented by the general formula of Fe.sub.x M.sub.y L.sub.z J.sub.u Q.sub.w, wherein M denotes at least one selected from the group of Ru, Cr, Ti, Mo, W and Rh, L denotes at least one selected from the group of Y, Hf, Zr, Ta and Nb, J denotes at least one of Al and Ga, Q denotes at least one of Si and Ge and x, y, z, u and w denote the proportions of respective atoms in atom %, and wherein the composition is given by 68.ltoreq.x
摘要翻译： 具有高饱和磁通密度和优异的软磁性能的软磁性膜，并且能够在加工到磁头时保持优异的软磁特性。 磁性膜由通式FexMyLzJuQw表示，其中M表示选自Ru，Cr，Ti，Mo，W和Rh中的至少一种，L表示选自Y，Hf，Zr中的至少一种 ，Ta和Nb，J表示Al和Ga中的至少一种，Q表示Si和Ge中的至少一种，x，y，z，u和w表示原子％的各原子的比例，并且其中给出组合物 通过68 10和10
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公开(公告)号：US5666249A
公开(公告)日：1997-09-09
申请号：US640987
申请日：1996-04-22
CPC分类号： G11B5/21 , G11B5/1274 , G11B5/17 , G11B5/29 , G11B5/531
摘要： A magnetic head is disclosed in which a pair of magnetic core halves, each having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, are abutted to each other for defining a magnetic gap between the magnetic metal films, wherein a recess for forming a coil is formed in an abutting surface of at least one of the magnetic core halves and the coil formed by a thin film forming technique is arranged within the recess. A multi-channel magnetic head is also disclosed which includes a plurality of magnetic heads having different azimuth angles of the magnetic gaps, wherein each magnetic head is formed by abutting a pair of magnetic core halves to each other, each of the magnetic core halves having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, for defining a magnetic gap between the magnetic metal films, and wherein a recess for forming a coil is formed in the abutting surface of at least one of the magnetic core halves, and the coil is formed in the recess by thin film forming technique. The methods for producing the magnetic head and the multi-channel magnetic head are also disclosed.
摘要翻译： 公开了一种磁头，其中一对磁芯半部分彼此邻接，以形成在与磁记录介质相对的至少基板表面附近形成的磁性金属膜，以在磁性金属 膜，其中在所述凹部内设置有用于形成线圈的凹部，所述凹部形成在至少一个所述磁芯半部和通过薄膜形成技术形成的所述线圈的邻接表面中。 还公开了一种多通道磁头，其包括具有磁隙的不同方位角的多个磁头，其中每个磁头通过将一对磁芯半体彼此邻接而形成，每个磁芯半部具有 形成在至少面对磁记录介质的基板表面附近的磁性金属膜，用于限定磁性金属膜之间的磁隙，并且其中用于形成线圈的凹部形成在至少一个 磁芯半部，并且通过薄膜形成技术在凹部中形成线圈。 还公开了用于制造磁头和多通道磁头的方法。
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公开(公告)号：US5715122A
公开(公告)日：1998-02-03
申请号：US698769
申请日：1996-08-16
摘要： A magnetic head with which electrical connection between the terminals of the head and other devices is easy, which is suitable for the mass production of magnetic recording/reproducing equipment and which is highly reliable comprises a pair of bases facing each other, a thin film coil formed on at least one of the bases, and a terminal portion connected to the thin film coil formed on the same base; a portion of the other base is cut away and the terminal portion is exposed at this cutaway portion and the terminal portion is formed at the cutaway portion on a surface intersecting the main surface of the magnetic head at an obtuse angle.
摘要翻译： 一种磁头，其头部和其他装置的端子之间的电气连接容易，适用于大量生产磁记录/再现设备并且高可靠性的磁头包括一对彼此相对的基座，薄膜线圈 形成在所述基底中的至少一个上，以及与形成在所述基底上的所述薄膜线圈连接的端子部; 另一个基座的一部分被切掉，并且端子部分在该切口部分露出，并且端子部分以钝角形成在与磁头的主表面相交的表面上的切口部分。
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