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1. 发明授权

US07092225B2 Magnetic tunnel effect type magnetic head, and method of producing same 失效
公开(公告)号：US07092225B2
公开(公告)日：2006-08-15
申请号：US11091084
申请日：2005-03-28
申请人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
发明人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B2005/3996 , Y10T29/49041 , Y10T29/49043
摘要： A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.

2. 发明授权

US07092224B2 Magnetic tunnel effect type magnetic head, and method of producing same 失效
标题翻译：磁隧道效应型磁头及其制造方法
公开(公告)号：US07092224B2
公开(公告)日：2006-08-15
申请号：US11091040
申请日：2005-03-28
申请人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
发明人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B2005/3996 , Y10T29/49041 , Y10T29/49043
摘要： A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.
摘要翻译：一种磁隧道效应型磁头，包括形成在第一软磁性导电层上的第一软磁性导电层，该第一软磁性导电层提供下部屏蔽层24，金属氧化物层25和第一非磁性导电层，以提供较低的间隙层26，形成在第一非磁性导电层上以提供磁性隧道结元件27的磁性隧道结层34，形成在磁性隧道结层34上以提供上间隙层28的第二非磁性导电层; 以及形成在第二非磁性导电层上以提供上屏蔽层29的第二软磁导电层，下间隙层26中的金属氧化物层25形成在至少磁性隧道结层27下面。

3. 发明申请

US20050168884A1 Magnetic tunnel effect type magnetic head, and method of producing same 失效
标题翻译：磁隧道效应型磁头及其制造方法
公开(公告)号：US20050168884A1
公开(公告)日：2005-08-04
申请号：US11091084
申请日：2005-03-28
申请人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
发明人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
IPC分类号： G01R33/09 , G11B5/39 , H01L43/08 , H01L43/12 , G11B5/33 , G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B2005/3996 , Y10T29/49041 , Y10T29/49043
摘要： A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the:magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.
摘要翻译：一种磁隧道效应型磁头，包括形成在第一软磁性导电层上的第一软磁性导电层，该第一软磁性导电层提供下部屏蔽层24，金属氧化物层25和第一非磁性导电层，以提供较低的间隙层26，形成在第一非磁性导电层上以提供磁性隧道结元件27的磁性隧道结层34，形成在磁性隧道结层34上以提供上间隙层28的第二非磁性导电层; 以及形成在第二非磁性导电层上以提供上屏蔽层29的第二软磁导电层，下间隙层26中的金属氧化物层25形成在至少磁性隧道结层27下面。

4. 发明授权

US06678126B2 Magnetoresistance-effect magnetic head 失效
标题翻译：磁阻效应磁头
公开(公告)号：US06678126B2
公开(公告)日：2004-01-13
申请号：US10046501
申请日：2001-10-19
申请人： Toru Katakura , Takuji Matsuo , Eiji Nakashio , Junichi Sugawara , Seiji Onoe
发明人： Toru Katakura , Takuji Matsuo , Eiji Nakashio , Junichi Sugawara , Seiji Onoe
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3909 , G11B5/3916 , G11B2005/3996
摘要： The part of an MR element 25 which lies close to a medium-facing surface 10a overlaps that part of a flux-guiding element 24 which lies remote from the medium-facing surface 10a, with a second gap film 23b interposed between the elements 24 and 25. Further, the MR element 25 overlaps the flux-guiding element 24 for a distance that falls within a range of 15 to 25% of the length of the MR height of the element 25 as measured in a direction perpendicular to the medium-facing surface 10a.
摘要翻译：靠近中间面10a的MR元件25的部分与远离中介面10a的磁通引导元件24的一部分重叠，第二间隙膜23b置于元件24和此外，MR元件25与磁通引导元件24重叠一段距离，该距离落在元件25的MR高度的长度的15至25％的范围内，在与中间面向垂直的方向上测量表面10a。

5. 发明申请

US20050168883A1 Magnetic tunnel effect type magnetic head, and method of producing same 失效
标题翻译：磁隧道效应型磁头及其制造方法
公开(公告)号：US20050168883A1
公开(公告)日：2005-08-04
申请号：US11091040
申请日：2005-03-28
申请人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
发明人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
IPC分类号： G01R33/09 , G11B5/39 , H01L43/08 , H01L43/12 , G11B5/33 , G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B2005/3996 , Y10T29/49041 , Y10T29/49043
摘要： A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.
摘要翻译：一种磁隧道效应型磁头，包括形成在第一软磁性导电层上的第一软磁性导电层，该第一软磁性导电层提供下部屏蔽层24，金属氧化物层25和第一非磁性导电层，以提供较低的间隙层26，形成在第一非磁性导电层上以提供磁性隧道结元件27的磁性隧道结层34，形成在磁性隧道结层34上以提供上间隙层28的第二非磁性导电层; 以及形成在第二非磁性导电层上以提供上屏蔽层29的第二软磁导电层，下间隙层26中的金属氧化物层25形成在至少磁性隧道结层27下面。

6. 发明授权

US06873502B2 Magnetic tunnel effect type magnetic head, and method of producing same 失效
标题翻译：磁隧道效应型磁头及其制造方法
公开(公告)号：US06873502B2
公开(公告)日：2005-03-29
申请号：US09898259
申请日：2001-07-03
申请人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
发明人： Eiji Nakashio , Seiji Onoe , Junichi Sugawara , Toru Katakura
IPC分类号： G01R33/09 , G11B5/39 , H01L43/08 , H01L43/12 , G11B5/127 , G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B2005/3996 , Y10T29/49041 , Y10T29/49043
摘要： A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.
摘要翻译：一种磁隧道效应型磁头，包括形成在第一软磁性导电层上的第一软磁性导电层，该第一软磁性导电层提供下部屏蔽层24，金属氧化物层25和第一非磁性导电层，以提供较低的间隙层26，形成在第一非磁性导电层上以提供磁性隧道结元件27的磁性隧道结层34，形成在磁性隧道结层34上以提供上间隙层28的第二非磁性导电层; 以及形成在第二非磁性导电层上以提供上屏蔽层29的第二软磁导电层，下间隙层26中的金属氧化物层25形成在至少磁性隧道结层27下面。

7. 发明授权

US06781950B2 Slider for an optical head with a terminal groove having an inclined bottom surface 失效
标题翻译：用于具有具有倾斜底表面的端子槽的光学头的滑块
公开(公告)号：US06781950B2
公开(公告)日：2004-08-24
申请号：US09782274
申请日：2001-02-14
申请人： Akio Mishima , Toru Katakura
发明人： Akio Mishima , Toru Katakura
IPC分类号： G11B700
CPC分类号： G11B11/10554 , G11B7/122 , G11B7/1384 , G11B7/1387 , G11B7/22 , G11B11/10534 , G11B11/1058 , Y10T29/49032 , Y10T29/49034 , Y10T29/49041 , Y10T29/49043 , Y10T29/49046 , Y10T29/49798
摘要： A slider for an optical head for signal recording and/or reproduction on or from a recording medium which, even if reduced in size, assures optimum signal recording and/or reproduction on or from a recording medium, and which may be produced readily. The slider for the optical head includes a slider member for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium, an optical lens bonded to the slider member and a magnetic field generating unit provided on a surface of the slider member carrying the optical lens facing the recording medium. The slider member is formed with a terminal groove opened in a its surface facing the recording medium and in its lateral surface, with an electrically conductive material being charged in the terminal groove. The electrically conductive material charged forms a terminal electrically connected to the magnetic field generating unit. One end of the terminal faces to outside of the slider member from a lateral surface of the slider member.
摘要翻译：用于在记录介质上或从记录介质上进行信号记录和/或再现的光学头的滑动器，即使减小了尺寸，确保了在记录介质上或从记录介质上的最佳信号记录和/或再现，并且可容易地制造。用于光学头的滑块包括用于在用于记录介质的信息信号的记录和/或再现期间浮动并在记录介质上运行的滑块构件，结合到滑块构件的光学透镜和设置在滑动构件上的磁场产生单元所述滑动构件承载面向所述记录介质的所述光学透镜。滑块构件形成有在面向记录介质的表面上开口的端子槽，并且在其侧表面中，导电材料被充入端子槽中。充电的导电材料形成电连接到磁场产生单元的端子。端子的一端从滑动构件的侧面面向滑动构件的外侧。

8. 发明申请

US20050213437A1 Magneto-optical head and magneto-optical read/write apparatus 审中-公开
标题翻译：磁光头和磁光读写装置
公开(公告)号：US20050213437A1
公开(公告)日：2005-09-29
申请号：US11135913
申请日：2005-05-24
申请人： Toru Katakura , Kenjiro Watanabe
发明人： Toru Katakura , Kenjiro Watanabe
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/1058 , G11B11/10534 , G11B11/10554
摘要： There is provided a magneto-optical head including a magnetic field applying means having optimum electromagnetic conversion efficiency and capable of applying a magnetic field having favorable distribution to a recording medium, and a magneto-optical read/write apparatus which has the magneto-optical head allowing reduction of power consumption of a disk drive. The magneto-optical head includes a light transmitting section for transmitting light provided to a slider floating over a recording medium, and a magnetic field applying means arranged around the light transmitting section. The magnetic field applying means includes a thin film coil and a magnetic material serving as a magnetic field generating yoke having a portion disposed on the side of the recording medium and another portion disposed on the opposite side to the recording medium. The magneto-optical read/write apparatus has the magneto-optical head for reading/writing information stored in the recording medium.
摘要翻译：提供了一种磁光头，其包括具有最佳电磁转换效率并且能够将具有良好分布的磁场施加到记录介质的磁场施加装置，以及具有磁光头的磁光读/写装置允许减少磁盘驱动器的功耗。磁光头包括用于透射提供到浮动在记录介质上的滑块的光的光发射部分和布置在光传输部分周围的磁场施加装置。磁场施加装置包括薄膜线圈和用作磁场产生磁轭的磁性材料，其具有设置在记录介质侧的部分和设置在与记录介质相反的一侧的另一部分。磁光读/写装置具有用于读/写存储在记录介质中的信息的磁光头。

9. 发明授权

US06895657B2 Method for producing a slider for an optical head 失效
标题翻译：光头用滑块的制造方法
公开(公告)号：US06895657B2
公开(公告)日：2005-05-24
申请号：US10251773
申请日：2002-09-23
申请人： Akio Mishima , Toru Katakura
发明人： Akio Mishima , Toru Katakura
IPC分类号： G11B21/21 , A61K31/335 , G11B5/127 , G11B7/12 , G11B7/135 , G11B7/22 , G11B11/105 , H04R31/00
CPC分类号： G11B11/10554 , G11B7/122 , G11B7/1384 , G11B7/1387 , G11B7/22 , G11B11/10534 , G11B11/1058 , Y10T29/49032 , Y10T29/49034 , Y10T29/49041 , Y10T29/49043 , Y10T29/49046 , Y10T29/49798
摘要： A method for producing a slider for an optical head includes a slider member adapted for floating and running over a recording medium during recording and/or reproduction of information signals for the recording medium. An optical lens is bonded to the slider member and a magnetic field generator provided on a surface of the slider member carrying the optical lens facing the recording medium. A first step is forming a groove presenting a bottom surface inclined in the depth-wise direction by ejecting a polishing agent dispersed in a compressed gas on a substrate. A second step is charging an electrically conductive material, which proves a terminal electrically connected to the magnetic field generator in the inside of the groove formed in the substrate. A third step is cutting the substrate in the vicinity of an end of the groove to form a plurality of individual slider members.
摘要翻译：一种用于制造用于光学头的滑动器的方法，包括滑动构件，其适于在记录和/或再现记录介质的信息信号期间在记录介质上浮动和运行。光学透镜被结合到滑动构件和设置在承载面向记录介质的光学透镜的滑动构件的表面上的磁场发生器。第一步骤是通过将分散在压缩气体中的抛光剂喷射到基板上而形成沿着深度方向倾斜的底面的凹槽。第二步是对导电材料进行充电，这证明在形成在衬底中的沟槽的内部电连接到磁场发生器的端子。第三步骤是在槽的端部附近切割基板以形成多个独立的滑块构件。

10. 发明授权

US06368519B1 Etching method and a method of manufacturing a magnetic head 失效
标题翻译：蚀刻方法和制造磁头的方法
公开(公告)号：US06368519B1
公开(公告)日：2002-04-09
申请号：US09457135
申请日：1999-12-09
申请人： Toru Katakura , Teiichi Miyauchi , Yuko Takanashi
发明人： Toru Katakura , Teiichi Miyauchi , Yuko Takanashi
IPC分类号： B44C122
CPC分类号： G11B5/3925 , C23F4/00 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3183 , G11B5/53 , Y10T29/49032 , Y10T29/49052
摘要： A magnetic gap is formed to be vertical to the film forming surface of a substrate with high accuracy by a simple method. The method comprises a non-magnetic film forming step of forming a non-magnetic film made of the non-magnetic material on the substrate, a high selectivity film forming step of forming a high selectivity film made of a material which has a higher selectivity ratio with respect to reactive ion etching than the non-magnetic material, on the non-magnetic film formed, a patterning step of patterning the high-selectivity film into a predetermined shape, and an etching step of etching the non-magnetic film by reactive ion etching, using the high selectivity film as a mask.
摘要翻译：通过简单的方法，以高精度将磁隙形成为与基板的成膜面垂直。该方法包括在基板上形成由非磁性材料制成的非磁性膜的非磁性膜形成步骤，形成由具有较高选择比的材料制成的高选择性膜的高选择性膜形成步骤相对于非磁性材料的反应离子蚀刻，在形成的非磁性膜上形成将高选择性膜图案化为规定形状的图案化工序，以及通过反应离子蚀刻非磁性膜的蚀刻工序蚀刻，使用高选择性膜作为掩模。

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