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公开(公告)号：US4760481A
公开(公告)日：1988-07-26
申请号：US888116
申请日：1986-07-22
Applicant: Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Keiko Shiokawa , Yoshihiro Hamakawa , Saburo Suzuki , Harunobu Saito
Inventor： Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Keiko Shiokawa , Yoshihiro Hamakawa , Saburo Suzuki , Harunobu Saito
CPC classification number: G11B5/3163
Abstract: Disclosed is a thin film magnetic head having a structure wherein the main portion of a coil consists of a copper or copper alloy layer and its upper surface is covered with a thin film mask consisting of titanium, titanium oxide, chromium and/or chromium oxide. The magnetic head of the invention can prevent the occurrence of projecting etching residues at the upper edge portion of the coil and can easily increase the cross-sectional area and the winding density of the coil. Furthermore, when the thin film mask consists of titanium and/or titanium oxide, a titanium diffusion prevention film consisting of chromium, for example, is interposed between the thin film mask and the copper or copper alloy, so that the resistance change of the coil scarcely takes place owing to heat treatment in a production process after the formation of the coil and the head reliability can be further improved.
Abstract translation: 公开了一种薄膜磁头，其结构是线圈的主要部分由铜或铜合金层组成，其上表面被由钛，氧化钛，铬和/或氧化铬组成的薄膜掩模覆盖。 本发明的磁头可以防止在线圈的上边缘部分产生突出的蚀刻残留物，并且可以容易地增加线圈的横截面面积和卷绕密度。 此外，当薄膜掩模由钛和/或氧化钛组成时，例如由铬组成的钛扩散防止膜插入在薄膜掩模和铜或铜合金之间，使得线圈的电阻变化 由于在线圈形成后的生产过程中的热处理几乎不发生，并且可以进一步提高头的可靠性。
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公开(公告)号：US4667260A
公开(公告)日：1987-05-19
申请号：US841654
申请日：1986-03-20
Applicant: Craig M. Perlov , Arthur Calderon, Jr.
Inventor： Craig M. Perlov , Arthur Calderon, Jr.
CPC classification number: G11B5/1278 , G11B5/17
Abstract: A vertical recording head includes a W-shaped core, a substrate carrying a thin film probe supported in one slot of the core, and a shield coil wound in the slots to hold the substrate and assemblage together. A non-magnetic cap forms the surface of the head over the cap, with the arrangement being such that the probe extends through the cap so the magnetic gap is as small as possible.
Abstract translation: 垂直记录头包括W形芯，承载支撑在芯的一个槽中的薄膜探针的基板和缠绕在槽中的屏蔽线圈以将基板夹持在一起。 非磁性盖形成头顶部的表面，其结构使得探头延伸穿过盖，使得磁隙尽可能小。
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公开(公告)号：US4625250A
公开(公告)日：1986-11-25
申请号：US456324
申请日：1983-01-06
Applicant: Norio Shibata
Inventor： Norio Shibata
CPC classification number: G11B5/31 , G11B5/29 , G11B5/3103
Abstract: A multi-track magnetic head comprises a first core half having a plurality of thin film cores made by thin film forming technique, and a second core half having a plurality of block cores and a plurality of block spacers which are stacked in advance. The first and second core halves are assembled so that they face each other. Each of the block cores has a U-shaped recess so that the block core is spaced from the thin film core except for both ends thereof. A coil of each head may be made of spiral coil pattern conductive layer deposited on the thin film core with an interposition of an insulating film, or may be a wire wound around the body of the block core.
Abstract translation: 多轨磁头包括具有由薄膜形成技术制成的多个薄膜芯的第一芯半体，以及预先堆叠有多个块芯和多个块间隔物的第二芯半部。 第一和第二核心半部组装成使得它们彼此面对。 每个块芯具有U形凹部，使得块芯除了其两端之外与薄膜芯间隔开。 每个头部的线圈可以由沉积在薄膜芯上的螺旋线圈图案导电层制成，其中插入绝缘膜，或者可以是缠绕在块状芯体上的线。
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公开(公告)号：US4402027A
公开(公告)日：1983-08-30
申请号：US293984
申请日：1981-08-18
Applicant: Kazuo Nakamura , Masaru Higashionji
Inventor： Kazuo Nakamura , Masaru Higashionji
Abstract: A construction is disclosed of a magnetic transducer having a built-in step-up transformer. A ring head portion of the transducer consists of a ring head core defining a substantially closed magnetic path including a front non-magnetic gap and an internal winding aperture, and of a signal winding disposed on the ring head core so as to be interlinked with the magnetic path of the ring head core. A transformer portion of the transducer is mounted at a rear plane of the ring head core and consists of a transformer core, a primary winding, a secondary winding and a rear portion of the ring head core. The transformer core includes a central yoke, at least one peripheral yoke and a linkage yoke. The central yoke and the peripheral yoke are connected with each other at one end by the linkage yoke and at the other end by the rear portion of the ring head core. The primary and the secondary windings are disposed on the transformer core encompassing the central yoke in a coaxial manner, so as to form a shell-type transformer. The ring head portion is coupled to the transformer portion by connecting the signal winding to the primary winding.
Abstract translation: 公开了具有内置升压变压器的磁换能器的结构。 换能器的环形头部分由环形磁头芯组成，环形磁芯芯限定包括前部非磁性间隙和内部绕组开口的基本封闭的磁路，以及设置在环形磁芯磁芯上的信号绕组，以便与 环形磁芯的磁路。 换能器的变压器部分安装在环形磁头磁芯的后平面上，由变压器磁芯，初级绕组，次级绕组和环形磁芯磁芯的后部组成。 变压器铁芯包括中心轭，至少一个外围轭和连接轭。 中心轭和周边轭在一端通过联动轭彼此连接，另一端由环形磁芯的后部连接。 初级绕组和次级绕组以同轴方式设置在包围中心磁轭的变压器芯上，以便形成壳型变压器。 环形头部分通过将信号绕组连接到初级绕组而耦合到变压器部分。
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5.发明授权
公开(公告)号：US4385334A
公开(公告)日：1983-05-24
申请号：US168281
申请日：1980-07-10
Applicant: Tuneo Yanagida
Inventor： Tuneo Yanagida
CPC classification number: G11B5/3903 , G11B5/1278 , G11B5/2452 , G11B5/3967
Abstract: A vertical magnetic recording and reproducing head includes a magnetic sensing element for sensing a magnetized pattern recorded in a recording medium which serves as a main magnetic electrode in the reproduction mode, a bias section for biasing the magnetic sensing element, and a main magnetic pole which is disposed adjacent to said magnetic sensing element. The main magnetic pole includes a magnetic member serving as the main magnetic pole for magnetizing the recording medium in the record mode.
Abstract translation: 垂直磁记录和再现头包括用于感测记录在再现模式中用作主磁极的记录介质中的磁化图案的磁感测元件，用于偏置磁感测元件的偏压部分和主磁极， 邻近所述磁感测元件设置。 主磁极包括用作在记录模式下磁化记录介质的主磁极的磁性部件。
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Patent Agency Ranking
公开(公告)号：US4342059A
公开(公告)日：1982-07-27
申请号：US287880
申请日：1981-07-29
Applicant: William R. Wray
Inventor： William R. Wray
CPC classification number: G11B23/0007 , H03G7/002
Abstract: Audio signals with opposite relative phases are recorded on two tracks. A dual track head reproduces the signals from the two tracks and introduces another phase reversal of one signal relative to the other. Noise which was not present in the record circuit, but enters the system at the playback head, is out of phase in the signals which the playback head applies to the playback circuit. Combining the out-of-phase noise components of the two signals substantially cancels the noise.
Abstract translation: 具有相对相位相位的音频信号被记录在两个轨道上。 双轨头再现来自两个轨道的信号，并且相对于另一个引入另一个信号的另一个相位反转。 记录电路中不存在但在回放头处进入系统的噪声在重放头施加到回放电路的信号中是异相的。 组合两个信号的异相噪声分量基本上消除了噪声。
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公开(公告)号：US4316227A
公开(公告)日：1982-02-16
申请号：US83036
申请日：1979-10-09
Applicant: James U. Lemke , William W. French
Inventor： James U. Lemke , William W. French
CPC classification number: G11B5/29 , G11B5/17 , Y10T29/49048 , Y10T29/49055 , Y10T29/4906
Abstract: A multitrack magnetic head is made from an electrically conductive first helix formed on an iron wire that is, in turn, wound to form a second helix. By cutting or lapping a longitudinal flat along one side of the second helix, the first helix is severed into respective discrete coil-wound gapped cores.
Abstract translation: 多轨磁头由形成在铁丝上的导电第一螺旋制成，铁丝又被缠绕以形成第二螺旋。 通过沿着第二螺旋的一侧切割或研磨纵向平面，第一螺旋被切断成相应的分立的线圈缠绕间隙芯。
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公开(公告)号：US4314298A
公开(公告)日：1982-02-02
申请号：US82847
申请日：1979-10-09
Applicant: William W. French , James U. Lemke , Richard J. McClure
Inventor： William W. French , James U. Lemke , Richard J. McClure
CPC classification number: G11B5/17 , G11B5/29 , Y10T29/49048 , Y10T29/49055 , Y10T29/4906
Abstract: A multitrack magnetic head is made from an electrically conductive first helix formed on an iron wire that is, in turn, wound to form a second helix. By longitudinally cutting along one side of the second helix, the first helix is severed into respective coils on discrete gapped cores.
Abstract translation: 多轨磁头由形成在铁丝上的导电第一螺旋制成，铁丝又被缠绕以形成第二螺旋。 通过沿着第二螺旋的一侧纵向地切割，第一螺旋被切断到离散间隙芯的相应线圈中。
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公开(公告)号：US4295173A
公开(公告)日：1981-10-13
申请号：US83182
申请日：1979-10-18
Applicant: Lubomyr T. Romankiw , David A. Thompson
Inventor： Lubomyr T. Romankiw , David A. Thompson
CPC classification number: G11B5/313 , G11B5/3113 , G11B5/3116
Abstract: A thin film inductive transducer head includes a magnetic circuit with a pair of legs and inductive coils. The legs are thinner near the pole tip than in the back gap region. The legs are also narrower in the pole tip region than in the back gap region. Resolution is enhanced by the thin pole tips and saturation of the yoke structure is avoided by increasing the cross-sectional area of the yoke structure away from the pole tip region.
Abstract translation: 薄膜感应传感器头包括具有一对腿和感应线圈的磁路。 在极尖附近的腿比后隙区域更薄。 腿部在极尖区域中也比在后间隙区域中窄。 通过薄极尖增强分辨率，并且通过增加轭结构远离极尖区域的横截面积来避免轭结构的饱和。
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公开(公告)号：US4210945A
公开(公告)日：1980-07-01
申请号：US939338
申请日：1978-09-05
Applicant: Konstantin A. Lavrentiev , Svyatoslav D. Kretov , Alexandr G. Koshelev
Inventor： Konstantin A. Lavrentiev , Svyatoslav D. Kretov , Alexandr G. Koshelev
Abstract: According to the invention, the rotary magnetic head assembly comprises a current-conducting housing which accommodates magnetic heads and a contactless signal transformer device. The magnetic heads are mounted on a holder secured on a hollow shaft. The contactless signal transformer device comprises a rotor mounted on the holder and a stator spaced at a certain distance from the rotor. The rotor and stator cores are closed magnetic circuits with helical windings. The center of each turn of said windings is on a circumference matched with the center line of each of the closed magnetic circuits. The hollow shaft accommodates a current-conducting element joined to the bottom and the lid of the housing so that the lid, walls and bottom of the housing and said current-conducting element make up a closed spatial coupling loop of the rotor and stator windings. The closed magnetic circuits of the rotor and stator encompass the current-conducting element.
Abstract translation: 根据本发明，旋转磁头组件包括容纳磁头的导电壳体和非接触信号变压器装置。 磁头安装在固定在中空轴上的支架上。 非接触信号变压器装置包括安装在保持器上的转子和与转子隔开一定距离的定子。 转子和定子铁芯是具有螺旋绕组的闭合磁路。 所述绕组的每一圈的中心在与每个闭合磁路的中心线匹配的圆周上。 中空轴容纳连接到壳体的底部和盖子的导电元件，使得壳体的盖，壁和底部以及导电元件构成转子和定子绕组的闭合空间耦合回路。 转子和定子的封闭磁路包括导流元件。
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