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1. 发明公开

EP0332320A3 Method for fabricating magnetic recording poles 失效转让
标题翻译：制造磁记录棒的方法
公开(公告)号：EP0332320A3
公开(公告)日：1993-10-06
申请号：EP89301755.8
申请日：1989-02-23
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L. , Stander, Richard A.
IPC分类号： G11B5/31 , G11B5/187
CPC分类号： G11B5/3163 , G11B5/31 , G11B5/3103 , G11B5/313 , G11B5/3183
摘要： The poles are suited for mounting on the side of a slider carrying a magnetic head. The method allows very narrow gaps between poles. In one embodiment of the invention, a magnetic pole is deposited on a substrate. A nonmagnetic material such as Al₂O₃ is deposited from the side onto the pole and substrate. A preselected pattern of photoresist is next deposited on the nonmagnetic layer and a second magnetic material is deposited. The photoresist is removed and excess magnetic material is removed by ion milling from the side opposite to that of the nonmagnetic material deposition. Another embodiment is disclosed for making two- and three-pole heads.

2. 发明公开

EP0520656A2 Transducer with improved inductive coupling 失效
标题翻译： Wandler mit verbesserter induktiver Kopplung。
公开(公告)号：EP0520656A2
公开(公告)日：1992-12-30
申请号：EP92305406.8
申请日：1992-06-12
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L.
IPC分类号： G11B5/31
CPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B5/3113 , G11B5/313 , G11B5/3163 , Y10T29/49034 , Y10T29/49055
摘要： A thin film magnetic transducer (30) is formed in a plurality of layers and comprises a yoke (32) with at least one arm (36,38) having segments respectively lying in separate said layers and connected through a transition layer (B), and one or more coils; the coil (34) or (coils) and the yoke are intertwined to provide more than two flux interactions therebetween. In one aspect, the segments of the arm are oriented obliquely to each other and have easy axes of magnetization respectively transverse to the directions of flux conduction through said segments, and the segments are joined together so that flux can pass between them without flowing parallel to the easy axis of any of the segments.
摘要翻译：薄膜磁换能器形成为多层，并且包括具有至少一个臂的轭，所述至少一个臂具有分别位于分离的所述层中并且通过过渡层和一个或多个线圈连接的段; 线圈（或线圈）和磁轭相互缠绕以在它们之间提供多于两个的磁通相互作用。在一个方面，臂的部分彼此倾斜地定向，并且容易的磁化轴分别横穿通过所述段的通量传导方向，并且这些段被连接在一起，使得焊剂可以在它们之间通过而不流动平行于任何段的容易轴。

3. 发明公开

EP0403076A3 Magnetic medium for longitudinal recording 失效转让
标题翻译：用于长时间记录的磁性介质
公开(公告)号：EP0403076A3
公开(公告)日：1991-07-03
申请号：EP90305149.8
申请日：1990-05-14
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L.
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , Y10S428/90 , Y10T428/12465 , Y10T428/2495 , Y10T428/265
摘要： The magnetic medium includes a magnetic under image layer which may be separated from the hard magnetic recording layer by a nonmagnetic buffer layer. Virtual magnetic images induced in the magnetic image layer reduce off-track magnetization seen by the recording head. Thus, interference caused by tracks adjacent to the track being read is reduced.

4. 发明授权

EP0612060B1 Transducer with improved inductive coupling 失效
标题翻译：传感器改进了电感耦合
公开(公告)号：EP0612060B1
公开(公告)日：1998-01-21
申请号：EP94201115.6
申请日：1991-10-25
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L.
IPC分类号： G11B5/31 , G11B5/33
CPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B5/3113 , G11B5/313 , G11B5/3163 , Y10T428/265

5. 发明授权

EP0463765B1 Thin film head slider fabrication process 失效
标题翻译：用于薄膜磁头滑动器的制造工艺
公开(公告)号：EP0463765B1
公开(公告)日：1997-03-12
申请号：EP91305226.2
申请日：1991-06-11
申请人： QUANTUM CORPORATION
发明人： Hussinger, Keith R. , Mallary, Michael L.
IPC分类号： G11B5/127 , G11B5/187 , G11B5/31
CPC分类号： G11B5/3106 , G11B5/1272 , G11B5/1871 , G11B5/3163 , G11B5/6005 , Y10T29/49032 , Y10T29/4905 , Y10T29/4981 , Y10T29/49998

6. 发明授权

EP0401983B1 Thin film device for rotational magnetic flux conduction 失效转让
标题翻译：薄膜器件的磁通的旋转方向。
公开(公告)号：EP0401983B1
公开(公告)日：1995-11-15
申请号：EP90305150.6
申请日：1990-05-14
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L.
IPC分类号： G11B5/31 , G11B5/127 , G11B5/187 , H01F10/08
CPC分类号： B82Y25/00 , B82Y40/00 , G01R33/02 , G11B5/3113 , G11B5/3143 , G11B5/3153 , G11B5/3156 , G11B5/3179 , G11B5/332 , G11B5/66 , G11C11/14 , G11C11/15 , H01F10/30 , H01F10/32 , H01F27/24 , H01F27/365 , H01F41/302 , Y10S428/90 , Y10S428/928 , Y10T428/1186 , Y10T428/265 , Y10T428/31678

7. 发明公开

EP0520656A3 Transducer with improved inductive coupling 失效
标题翻译：具有改进的感应耦合的传感器
公开(公告)号：EP0520656A3
公开(公告)日：1993-09-01
申请号：EP92305406.8
申请日：1992-06-12
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L.
IPC分类号： G11B5/31
CPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B5/3113 , G11B5/313 , G11B5/3163 , Y10T29/49034 , Y10T29/49055
摘要： A thin film magnetic transducer (30) is formed in a plurality of layers and comprises a yoke (32) with at least one arm (36,38) having segments respectively lying in separate said layers and connected through a transition layer (B), and one or more coils; the coil (34) or (coils) and the yoke are intertwined to provide more than two flux interactions therebetween. In one aspect, the segments of the arm are oriented obliquely to each other and have easy axes of magnetization respectively transverse to the directions of flux conduction through said segments, and the segments are joined together so that flux can pass between them without flowing parallel to the easy axis of any of the segments.

8. 发明公开

EP0463753A1 Magnetic pole configuration for high density thin film recording head 失效
标题翻译： Dünnfilmaufzeichnungskopfmit Magnetpolkonfiguration zur Aufzeichnung mit hoher Dichte。
公开(公告)号：EP0463753A1
公开(公告)日：1992-01-02
申请号：EP91305094.4
申请日：1991-06-05
申请人： QUANTUM CORPORATION
发明人： Shukovsky, Harold B. , Batra, Sharat , Mallary, Michael L.
IPC分类号： G11B5/127 , G11B5/31 , G11B5/21 , G11B5/147
CPC分类号： G11B5/3153 , G11B5/3113 , G11B5/3163
摘要： A thin film magnetic recording head for high-density recording applications. The head includes a pole formed from at least two ferromagnetic material layers with one layer having high anisotropy (H k ) and low permeability (µ), and the other layer having low H k and high µ. The high H k layer provides the lower magnetic impedance flux path in the tip region and the low H k layer provides the lower magnetic impedance path in the yoke region of the head. A non-magnetic film may be disposed between the layers, with a thickness chosen to minimize domain flux coupling of the two magnetic layers, while allowing magnetic signal flux transfer between layers at an appropriate point between the tip and the yoke. The pole may be sculpted so that the low H k layer extends only partially into the tip region, or so that the high H k layer extends only partially into the yoke. Alternatively, the invention may use a laminated, high permeability layer and a homogeneous layer in place of the high H k and low H k layers.
摘要翻译：一种用于高密度记录应用的薄膜磁记录头。头包括由至少两个具有高各向异性（Hk）和低磁导率（μ）的一层的铁磁材料层形成的极，另一层具有低的Hk和高的mu。高Hk层在尖端区域中提供较低的磁阻抗通量，而低Hk层在头部磁轭区域提供较低的磁阻抗路径。可以在层之间设置非磁性膜，其厚度被选择为最小化两个磁性层的磁通量耦合，同时允许在尖端和磁轭之间的适当点处的层之间的磁信号磁通传递。极可以被雕刻，使得低Hk层仅部分地延伸到尖端区域，或者使得高Hk层仅部分地延伸到轭中。或者，本发明可以使用层叠的高透过性层和均匀层代替高Hk和低Hk层。

9. 发明授权

EP0482956B1 Transducer with improved inductive coupling 失效
标题翻译：转换器具有改进的电感耦合
公开(公告)号：EP0482956B1
公开(公告)日：1998-01-21
申请号：EP91309904.0
申请日：1991-10-25
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L.
IPC分类号： G11B5/31 , G11B5/33
CPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B5/3113 , G11B5/313 , G11B5/3163 , Y10T428/265

10. 发明公开

EP0612060A1 Transducer with improved inductive coupling 失效
标题翻译： Wandler mit verbesserter induktiver Kopplung。
公开(公告)号：EP0612060A1
公开(公告)日：1994-08-24
申请号：EP94201115.6
申请日：1991-10-25
申请人： QUANTUM CORPORATION
发明人： Mallary, Michael L.
IPC分类号： G11B5/31 , G11B5/33
CPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B5/3113 , G11B5/313 , G11B5/3163 , Y10T428/265
摘要： A thin film magnetic transducer formed in multiple layers and comprising a yoke having a plurality of arms, at least one of which has segments lying in separate layers and connected through a transition layer, and a multiturn coil intertwined with the yoke to provide at least two flux interactions between the yoke and coil. The transducer is constructed to enhance flux conduction by rotation and minimize flux conduction by wall motion in the yoke.
摘要翻译：一种形成为多层的薄膜磁换能器，包括具有多个臂的磁轭，所述磁轭具有多个臂，其中至少一个具有位于分开的层中并通过过渡层连接的部分，以及与所述磁轭缠绕的多圈线圈，以提供至少两个磁轭和线圈之间的磁通相互作用。传感器被构造为通过旋转来增强磁通传导，并且通过磁轭中的壁运动来最小化磁通传导。

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