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公开(公告)号：EP0538856A3
公开(公告)日：1993-11-10
申请号：EP92118081.6
申请日：1992-10-22
发明人： Mitani, Satoru , Ryonai, Hiroshi , Nagata, Yuji , Nakamura, Kazuo
CPC分类号： G11B5/3903
摘要： In a head, in which an inductive thin film recording head and a magneto-resistive effect type thin film reproducing head are formed as one unit (41), an integral structure with less false pulse is provided. The magnetic head includes a magnetic or non-magnetic substrate (1), and a recording thin film magnetic head having a lower record yoke (1), a recording coil (3) and an upper record yoke (5), and a reproducing thin film magnetic head having an upper reproduce yoke (15), a lower reproduce yoke (9) and a magneto-resistive effect element (13) replacing part of the upper reproduce yoke which are laminated on the substrate, and the thickness of the lower reproduce yoke (9) is set to be larger than that of the upper reproduce yoke (15).
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公开(公告)号：EP0519674A2
公开(公告)日：1992-12-23
申请号：EP92305493.6
申请日：1992-06-16
发明人： Nagata, Yuji , Fukazawa, Toshio , Mitani, Satoru
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/3951 , G11B5/3977 , G11B5/4893
摘要： The head (100) used for a magnetic reproducing apparatus is structured by laminating 2 magneto-resistive heads (100a,101b), at least with the position of 2 magneto-resistive elements (123a,123b) substantially shifted each other for lamination and also enabling a plurality of track formats to be conformed, thus making it possible to assure stable outputs up to a low frequency range.
摘要翻译： 用于磁再现装置的层叠型磁阻头通过层压2个磁阻头而构成，至少两个磁阻元件的位置基本上彼此相互偏移以进行层叠，并且还使得多个轨道格式成为 因此可以确保稳定的输出达到低频范围。
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公开(公告)号：EP0518649A2
公开(公告)日：1992-12-16
申请号：EP92305332.6
申请日：1992-06-10
发明人： Nagata, Yuji , Fukazawa, Toshio , Wada, Kumiko , Tozaki, Yoshihiro , Mitani, Satoru , Yanagi, Terumi
CPC分类号： G11B5/3103 , G11B5/4893 , G11B15/125
摘要： A device to be equipped on a magnetic recording and reproducing system can meet a plurality of recording formats and carry out stabilized recording/reproducing without depending on the running direction (A,B) of the magnetic tape (51). There are combined either of at least two thin film magnetic heads (81a,81b) for recording each having on a substrate a recording transducer for recording information on a magnetic tape or two thin film magnetic heads for reproducing each (71a,71b) having a reproducing transducer for reading out information recorded on a magnetic tape or two thin magnetic heads (50a,50b) for recording and reproducing in which the recording converter and the reproducing transducer exist in mixture. According to the running direction of the magnetic tape, only the thin film magnetic head (50a) which is situated at the downstream side in the running direction (A) of the magnetic tape is activated to be always in an operating condition.
摘要翻译： 配备在磁记录和再现系统上的薄膜磁头装置可以满足多种记录格式，并且不依赖于磁带的运行方向执行稳定的记录/再现。 至少两个用于记录的薄膜磁头中的至少两个，用于记录每个具有在基板上的记录换能器，用于在磁带上记录信息或两个薄膜磁头用于再现，每个薄膜磁头具有用于读出记录在磁体上的信息的再现换能器 磁带或两个用于记录和再现的薄磁头，其中记录覆盖器和再现换能器存在于混合中。 根据磁带的运行方向，只有位于磁带运行方向下游侧的薄膜磁头被激活才能始终处于运行状态。
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公开(公告)号：EP0516022B1
公开(公告)日：1998-08-12
申请号：EP92108793.8
申请日：1992-05-25
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/3967
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公开(公告)号：EP0519674B1
公开(公告)日：1997-04-16
申请号：EP92305493.6
申请日：1992-06-16
发明人： Nagata, Yuji , Fukazawa, Toshio , Mitani, Satoru
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/3951 , G11B5/3977 , G11B5/4893
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公开(公告)号：EP0518649A3
公开(公告)日：1994-04-27
申请号：EP92305332.6
申请日：1992-06-10
发明人： Nagata, Yuji , Fukazawa, Toshio , Wada, Kumiko , Tozaki, Yoshihiro , Mitani, Satoru , Yanagi, Terumi
CPC分类号： G11B5/3103 , G11B5/4893 , G11B15/125
摘要： A device to be equipped on a magnetic recording and reproducing system can meet a plurality of recording formats and carry out stabilized recording/reproducing without depending on the running direction (A,B) of the magnetic tape (51). There are combined either of at least two thin film magnetic heads (81a,81b) for recording each having on a substrate a recording transducer for recording information on a magnetic tape or two thin film magnetic heads for reproducing each (71a,71b) having a reproducing transducer for reading out information recorded on a magnetic tape or two thin magnetic heads (50a,50b) for recording and reproducing in which the recording converter and the reproducing transducer exist in mixture. According to the running direction of the magnetic tape, only the thin film magnetic head (50a) which is situated at the downstream side in the running direction (A) of the magnetic tape is activated to be always in an operating condition.
摘要翻译： 装在磁记录和重放系统上的装置可以满足多种记录格式，并且不依赖于磁带（51）的运行方向（A，B）而进行稳定的记录/重放。 结合至少两个薄膜磁头（81a，81b）用于在基片上记录每个具有用于在磁带上记录信息的记录换能器或用于再现每个（71a，71b）的具有 用于读出记录在磁带上的信息的重放转换器或用于记录和重放的两个薄磁头（50a，50b），其中记录转换器和重放转换器混合存在。 根据磁带的运行方向，只有位于磁带运行方向（A）下游侧的薄膜磁头（50a）被启动，始终处于工作状态。
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公开(公告)号：EP0516022A3
公开(公告)日：1993-11-03
申请号：EP92108793.8
申请日：1992-05-25
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/3967
摘要： In an integrated thin film magnetic head; a write pole or inductive head (I h ) includes a first and a second magnetic cores (1,5) magnetically coupled to form a magnetic circuit and a coil (3) formed between said first and second magnetic cores (1,5); and a MR element read pole or MR head MR h includes a first and a second yoke (14,5), a MR element (12) and a bias conductor (10) for applying a biasing magnetic field on said MR device; wherein said first magnetic core (1) or said second magnetic core (5) of said write pole also constituting said second yoke (5) of said read pole.
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公开(公告)号：EP0538856A2
公开(公告)日：1993-04-28
申请号：EP92118081.6
申请日：1992-10-22
发明人： Mitani, Satoru , Ryonai, Hiroshi , Nagata, Yuji , Nakamura, Kazuo
CPC分类号： G11B5/3903
摘要： In a head, in which an inductive thin film recording head and a magneto-resistive effect type thin film reproducing head are formed as one unit (41), an integral structure with less false pulse is provided. The magnetic head includes a magnetic or non-magnetic substrate (1), and a recording thin film magnetic head having a lower record yoke (1), a recording coil (3) and an upper record yoke (5), and a reproducing thin film magnetic head having an upper reproduce yoke (15), a lower reproduce yoke (9) and a magneto-resistive effect element (13) replacing part of the upper reproduce yoke which are laminated on the substrate, and the thickness of the lower reproduce yoke (9) is set to be larger than that of the upper reproduce yoke (15).
摘要翻译： 在其中感应薄膜记录头和磁阻效应型薄膜重放头形成为一个单元（41）的磁头中，提供了具有较少假脉冲的整体结构。 该磁头包括磁性或非磁性基片（1）和具有下记录磁轭（1），记录线圈（3）和上记录磁轭（5）以及再现薄片 （15），下再现磁轭（9）和磁阻效应元件（13），它们替代了叠加在基片上的上部再现磁轭的一部分，并且下部再现磁道的厚度 轭9被设定为大于上再现轭15的轭。
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公开(公告)号：EP0411915A3
公开(公告)日：1992-01-15
申请号：EP90308446.5
申请日：1990-07-31
发明人： Nagata, Yuji , Fukazawa, Toshio , Mitani, Satoru
CPC分类号： G11B5/3903 , G11B5/245
摘要： There is disclosed a thin film magnetic head which requires less recording current, and is capable of recording and reproducing with a high sensitivity. To achieve this magnetic head, a third yoke (15,21) of a high permeability is bridged across a notched portion of a second yoke (12) between front (10) and back (11) portions of the second yoke constituting part of a magnetic circuit. With this construction, the third yoke serves to extremely reduce a magnetic resistance between the front and back portions of the second yoke, so that the recording current can be smaller, thereby enhancing the recording efficiency.
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公开(公告)号：EP0551603B1
公开(公告)日：1998-12-02
申请号：EP92120454.1
申请日：1992-12-01
发明人： Nagata, Yuji , Mitani, Satoru , Nakamura, Kazuo
IPC分类号： G11B5/39
CPC分类号： G11B5/3903
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