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1. 发明授权

US06238731B1 Method of manufacturing a magnetic head 失效
标题翻译：制造磁头的方法
公开(公告)号：US06238731B1
公开(公告)日：2001-05-29
申请号：US09390854
申请日：1999-09-07
申请人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag , Wiepke Folkerts , Lambertus Postma , Ronald M. Wolf , Johannes F. M. Cillessen
发明人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag , Wiepke Folkerts , Lambertus Postma , Ronald M. Wolf , Johannes F. M. Cillessen
IPC分类号： B05D512
CPC分类号： G11B5/3919 , G11B5/3922
摘要： Thin-film magnetic head having a head face (103) and comprising a magnetoresistive element (109) oriented transversely to the head face and a flux-guiding element (107) of a magnetically permeable material terminating in the head face. A peripheral area (109a) of the magnetoresistive element extending parallel to the head face is present opposite the flux-guiding element for forming a magnetic connection between the magnetoresistive element and the flux-guiding element. The flux-guiding element and the peripheral area of the magnetoresistive element constitute a common magnetic contact face (111), while the magnetically permeable material of the flux-guiding element is electrically insulating.
摘要翻译：具有头表面（103）并且包括横向于头部表面定向的磁阻元件（109）的薄膜磁头和终止于头部表面的导磁材料的磁通引导元件（107）。与磁头表面平行延伸的磁阻元件的周边区域（109a）与磁通元件相对地形成，用于在磁阻元件和磁通引导元件之间形成磁连接。磁导元件和磁阻元件的周边区域构成公共磁性接触面（111），而导磁元件的导磁材料是电绝缘的。

2. 发明授权

US06205007B1 Thin-film magnetic head and method of manufacturing the magnetic head 失效
标题翻译：薄膜磁头及制造磁头的方法
公开(公告)号：US06205007B1
公开(公告)日：2001-03-20
申请号：US08156146
申请日：1993-11-22
申请人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag , Wiepke Folkerts , Lambertus Postma , Ronald M. Wolf , Johannes F. M. Cillessen
发明人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag , Wiepke Folkerts , Lambertus Postma , Ronald M. Wolf , Johannes F. M. Cillessen
IPC分类号： G11B5127
CPC分类号： G11B5/3919 , G11B5/3922
摘要： Thin-film magnetic head having a head face (103) and comprising a magnetoresistive element (109) oriented transversely to the head face and a flux-guiding element (107) of a magnetically permeable material terminating in the head face. A peripheral area (109a) of the magnetoresistive element extending parallel to the head face is present opposite the flux-guiding element for forming a magnetic connection between the magnetoresistive element and the flux-guiding element. The flux-guiding element and the peripheral area of the magnetoresistive element constitute a common magnetic contact face (111), while the magnetically permeable material of the flux-guiding element is electrically insulating.
摘要翻译：具有头表面（103）并且包括横向于头部表面定向的磁阻元件（109）的薄膜磁头和终止于头部表面的导磁材料的磁通引导元件（107）。与磁头表面平行延伸的磁阻元件的周边区域（109a）与磁通元件相对地形成，用于在磁阻元件和磁通引导元件之间形成磁连接。磁导元件和磁阻元件的周边区域构成公共磁性接触面（111），而导磁元件的导磁材料是电绝缘的。

3. 发明授权

US06233126B1 Thin film magnetic head having low magnetic permeability layer, and method of manufacturing the magnetic head 失效
标题翻译：具有低磁导率层的薄膜磁头和制造磁头的方法
公开(公告)号：US06233126B1
公开(公告)日：2001-05-15
申请号：US08698193
申请日：1996-08-15
申请人： Pieter J. Van der Zaag , Jacobus J. M. Ruigrok , Harald Van Kampen
发明人： Pieter J. Van der Zaag , Jacobus J. M. Ruigrok , Harald Van Kampen
IPC分类号： G11B539
CPC分类号： G11B5/3922
摘要： Thin film magnetic head has magnetoresistive element (23) and flux-guiding elements (117a,117b) of a material having a relatively high magnetic permeability, and an intermediate layer between the magnetoresistive element and the flux-guiding elements, the intermediate layer (21) being electrically insulating, and having a relatively low magnetic permeability of between 1.1 and 25. The low permeability intermediate layer increases the magnetic flux between the magnetoresistive element and the flux-guiding elements, and thereby improves the efficiency of the magnetic head.
摘要翻译：薄膜磁头具有磁阻元件（23）和具有较高磁导率的材料的磁通导向元件（117a，117b）和磁阻元件与磁通引导元件之间的中间层，中间层（21 ）电绝缘，并且具有介于1.1和25之间的相对低的磁导率。低磁导率中间层增加了磁阻元件和导磁元件之间的磁通量，从而提高了磁头的效率。

4. 发明授权

US5914838A Magnetic head with magnetoresistive sensor, and scanning device provided with the magnetic head 失效
标题翻译：具有磁阻传感器的磁头和配有磁头的扫描装置
公开(公告)号：US5914838A
公开(公告)日：1999-06-22
申请号：US792316
申请日：1997-01-31
申请人： Jacobus J. M. Ruigrok , Pieter J. van der Zaag
发明人： Jacobus J. M. Ruigrok , Pieter J. van der Zaag
IPC分类号： G11B5/39 , G11B5/127
CPC分类号： G11B5/3916 , G11B5/3925 , G11B5/3932
摘要： Magnetic head having a head face (1) and comprising a multilayer structure with a flux guide (7a, 7b), a magnetoresistive sensor (9) and an intermediate layer (13) present between the flux guide and said sensor. The intermediate layer comprises an anti-ferromagnetic oxide which insulates the sensor from the flux guide and also magnetically biases the sensor.
摘要翻译：具有磁头表面（1）并且包括具有通量引导件（7a，7b）的多层结构，磁阻传感器（9）和存在于所述磁通引导件和所述传感器之间的中间层（13）的磁头。中间层包括使传感器与磁通引导件绝缘的反铁磁氧化物，并且还使传感器发生磁偏置。

5. 发明授权

US06486662B1 Magnetic field sensor comprising a spin-tunnel junction 失效
标题翻译：磁场传感器包括自旋隧道结
公开(公告)号：US06486662B1
公开(公告)日：2002-11-26
申请号：US09179166
申请日：1998-10-26
申请人： Jacobus J. M. Ruigrok , Reinder Coehoorn , Pieter J. Van Der Zaag
发明人： Jacobus J. M. Ruigrok , Reinder Coehoorn , Pieter J. Van Der Zaag
IPC分类号： G11B539
CPC分类号： B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/332 , G11B5/3903 , G11B5/3919 , G11B5/3922
摘要： A magnetic field sensor comprises a transducer element, which: transducer element is a Spin Tunnel Junction, comprising a first and second magnetic layer which are sandwiched about an interposed electrical insulator layer; the sensor comprises a yoke having two arms; and the first magnetic layer is in direct contact with a first portion of a first arm of the yoke.
摘要翻译：磁场传感器包括换能器元件，换能器元件是旋转隧道结，包括被夹在电介质绝缘层之间的第一和第二磁性层; 传感器包括具有两个臂的轭; 并且第一磁性层与磁轭的第一臂的第一部分直接接触。

6. 发明授权

US06266217B1 Magnetic head having an anti-ferromagnetic oxide layer between a flux guide and a magneto-resistive sensor 失效
标题翻译：在磁通导向器和磁阻传感器之间具有反铁磁氧化物层的磁头
公开(公告)号：US06266217B1
公开(公告)日：2001-07-24
申请号：US09259955
申请日：1999-03-01
申请人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag
发明人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag
IPC分类号： G11B539
CPC分类号： G11B5/3916 , G11B5/3925 , G11B5/3932
摘要： a magnetic head with a head face includes a multilayer structure with a flux guide, a magnetoresistive sensor, and an intermediate layer present between the flux guide and the sensor. The intermediate layer includes an anti-ferromagnetic oxide which insulates the sensor from the flux guide and also magnetically biases the sensor.
摘要翻译：具有头部面的磁头包括具有磁通引导件的多层结构，磁阻传感器以及存在于磁通引导件和传感器之间的中间层。中间层包括使传感器与磁通引导件绝缘的反铁磁氧化物，并且还使传感器发生磁偏置。

7. 发明授权

US5600297A Magnetic field sensor 失效
标题翻译：磁场传感器
公开(公告)号：US5600297A
公开(公告)日：1997-02-04
申请号：US517156
申请日：1995-08-21
申请人： Jacobus J. M. Ruigrok , Martinus A. M. Gijs , Jacques C. S. Kools , Reinder Coehoorn , Wiepke Folkerts
发明人： Jacobus J. M. Ruigrok , Martinus A. M. Gijs , Jacques C. S. Kools , Reinder Coehoorn , Wiepke Folkerts
IPC分类号： G01P3/488 , G01R33/09 , G11B5/39 , G11B5/465 , H01F10/32 , H01L43/08 , H01L43/00
CPC分类号： B82Y25/00 , G01P3/488 , G01R33/093 , G11B5/3903 , H01F10/3268 , G11B5/3925 , G11B5/465
摘要： A device for detecting a magnetic field, which device comprises a magneto-resistive multilayer structure comprising a first magnetic layer (1) which is separated from a second magnetic layer by an interposed non-magnetic layer, the multilayer structure having a first in-plane reference axis (R.sub.1) coinciding with the direction in which magnetic flux is offered to the multilayer structure during operation, and a second in-plane reference axis (R.sub.2) which is perpendicular to the first reference axis (R.sub.1), whereby the magnetic easy axis (E.sub.1) of the first magnetic layer (1) is canted through an acute in-plane angle .alpha. with respect to the second reference axis (R.sub.2), and the magnetic easy axis (E.sub.2) of the second magnetic layer is canted in the opposite sense through an acute in-plane angle .beta. with respect to the second reference axis (R.sub.2). Such a device lends itself to application in a magnetic head, for sensitive retrieval of magnetically-encoded data from a carrier in the form of a tape, disc or card.
摘要翻译：一种用于检测磁场的装置，该装置包括磁阻多层结构，该磁阻多层结构包括通过插入的非磁性层与第二磁性层分离的第一磁性层（1），所述多层结构具有第一平面参考轴（R1）与在操作期间向多层结构提供磁通的方向一致，以及垂直于第一参考轴线（R1）的第二面内参考轴线（R2），由此磁性容易轴第一磁性层（1）的第一磁性层（E1）通过相对于第二参考轴线（R2）的锐角的平面角α倾斜，并且第二磁性层的易磁化轴（E2）倾斜于相反的通过相对于第二参考轴线（R2）的锐角平面角β来感测。这种设备本身适用于磁头，用于以磁带，光盘或卡片形式从载体敏感地检索磁编码数据。

8. 发明授权

US5531016A Method of manufacturing a thin-film magnetic head 失效
标题翻译：制造薄膜磁头的方法
公开(公告)号：US5531016A
公开(公告)日：1996-07-02
申请号：US216575
申请日：1994-03-22
申请人： Lambertus Postma , Henricus G. R. Maas , Jan Haisma , Jacobus J. M. Ruigrok , Gerardus H. J. Somers
发明人： Lambertus Postma , Henricus G. R. Maas , Jan Haisma , Jacobus J. M. Ruigrok , Gerardus H. J. Somers
IPC分类号： G11B5/31 , G11B5/39
CPC分类号： G11B5/3916 , G11B5/3919 , G11B5/3925 , Y10T29/49048
摘要： Method of manufacturing a thin-film magnetic head in which a main layer (5) of a non-magnetic material is formed on a support, which layer is recessed by removing material from a side remote from the support, said recess being subsequently filled up with a soft-magnetic material for forming a flux guide (17a, 17b), whereafter the main layer provided with the filled recess is mechanochemically polished for forming a main surface (19) at which subsequently a layer of a magnetoresistive material is provided for forming a magnetoresistive element (23).
摘要翻译：一种制造薄膜磁头的方法，其中在支撑体上形成非磁性材料的主层（5），所述层通过从远离支撑体的一侧移除材料而凹陷，所述凹槽随后被填充用于形成磁通引导件（17a，17b）的软磁性材料，然后将设置有填充凹部的主层机械化学研磨以形成主表面（19），随后提供用于形成的磁阻材料层磁阻元件（23）。

9. 发明授权

US5483735A Method of manufacturing a thin-film magnetic head 失效
标题翻译：制造薄膜磁头的方法
公开(公告)号：US5483735A
公开(公告)日：1996-01-16
申请号：US216573
申请日：1994-03-22
申请人： Lambertus Postma , Jan Haisma , Jacobus J. M. Ruigrok , Gerardus H. J. Somers
发明人： Lambertus Postma , Jan Haisma , Jacobus J. M. Ruigrok , Gerardus H. J. Somers
IPC分类号： G11B5/31 , G11B5/39 , G11B5/127
CPC分类号： G11B5/3916 , G11B5/3919 , G11B5/3925 , Y10T29/49048
摘要： Method of manufacturing a magnetoresistive magnetic head in which a first insulation layer (5) of a non-magnetic material is formed on a support face (3a), on which insulation layer a soft-magnetic layer having an upper face remote from the first insulation layer is formed by deposition of a soft-magnetic material. Subsequently a layer portion is removed for forming the flux-guiding elements (17a, 17b) and an aperture extending between said elements, and non-magnetic material for forming a second insulation layer (18) having an upper face remote from the soft-magnetic layer is deposited on the soft-magnetic layer and in the aperture formed therein, which second insulation layer has such a thickness that, viewed in a direction transverse to the support face, the smallest distance between the support face and the upper face of the second insulation layer is larger than the largest distance between the support face and the upper face of the soft-magnetic layer. Subsequently, a mechanochemical polishing treatment is performed as from the upper face of the second insulation layer for forming a main surface (19) at which magnetoresistive material is subsequently deposited for forming a magnetoresistive element (23).
摘要翻译：一种制造磁阻磁头的方法，其中在支撑面（3a）上形成非磁性材料的第一绝缘层（5），绝缘层上具有远离第一绝缘体的上表面的软磁层层通过沉积软磁材料形成。随后，去除层部分以形成磁通引导元件（17a，17b）和在所述元件之间延伸的孔，以及用于形成具有远离软磁体的上表面的第二绝缘层（18）的非磁性材料层沉积在软磁层上和形成在其中的孔中，该第二绝缘层具有从横向于支撑面的方向观察的厚度，即在支撑面与第二绝缘层的上表面之间的最小距离绝缘层大于软磁层的支撑面和上表面之间的最大距离。随后，从第二绝缘层的上表面进行机械化学抛光处理，以形成随后沉积磁阻材料以形成磁阻元件（23）的主表面（19）。

10. 发明授权

US4764832A Magnetic transducing head having clad core faces 失效
标题翻译：具有包层芯面的磁传感头
公开(公告)号：US4764832A
公开(公告)日：1988-08-16
申请号：US53163
申请日：1987-05-21
申请人： Ulrich E. Enz , Cornelis W. M. P. Sillen , Jacobus J. M. Ruigrok
发明人： Ulrich E. Enz , Cornelis W. M. P. Sillen , Jacobus J. M. Ruigrok
IPC分类号： G11B5/133 , G11B5/127 , G11B5/187 , G11B5/23 , G11B5/235
CPC分类号： G11B5/1878 , G11B5/1874
摘要： Magnetic transducing head comprising a magnetic core having two core limbs (1, 3) formed from a ferrite, a non-magnetizable gap (11) extending between two core faces (1B, 3B) of the core limbs and an electric coil (7) passing through a winding aperture (5). A cladding consisting of a first layer (13) of an Ni-Fe-based alloy is provided on at least one of the core faces, and a second layer (15) of an Fe-Si-Al-based alloy which is provided on the first layer.

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