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1. 发明授权

US4760481A Thin film magnetic head having an improved coil 失效
标题翻译：具有改进线圈的薄膜磁头
公开(公告)号：US4760481A
公开(公告)日：1988-07-26
申请号：US888116
申请日：1986-07-22
申请人： Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Keiko Shiokawa , Yoshihiro Hamakawa , Saburo Suzuki , Harunobu Saito
发明人： Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Keiko Shiokawa , Yoshihiro Hamakawa , Saburo Suzuki , Harunobu Saito
IPC分类号： B07B13/02 , B07B13/18 , G11B5/31 , G11B5/20 , G11B5/12
CPC分类号： G11B5/3163
摘要： 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.
摘要翻译：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。

2. 发明授权

US4881144A Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：US4881144A
公开(公告)日：1989-11-14
申请号：US142697
申请日：1988-01-11
申请人： Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Yoshihiro Hamakawa , Hisashi Takano
发明人： Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Yoshihiro Hamakawa , Hisashi Takano
IPC分类号： G11B5/31
CPC分类号： G11B5/3163
摘要： In a thin film magnetic head of the type wherein a lower magnetic pole, a gap layer, a first insulating layer, a coil, a second insulating layer and an upper magnetic pole are formed sequentially on a substrate, the present invention provides a thin film magnetic head characterized in that a surface active layer made of aluminum oxide, for example, is disposed between the first insulating layer and the second insulating layer except where the coil is formed on the first insulating layer so that the surface active layer is disposed between the coil and the second insulating layer. According to the present invention, it is possible to prevent the occurrence of bubbles between coil conductors, and eventually to improve flatness of the surface of the second insulating layer and to prevent degradation of the characteristics of the upper magnetic pole.
摘要翻译：在基板上依次形成下列磁极，间隙层，第一绝缘层，线圈，第二绝缘层和上磁极的薄膜磁头，本发明提供一种薄膜磁头，其特征在于，例如在第一绝缘层和第二绝缘层之间设置由氧化铝制成的表面有源层，除了在第一绝缘层上形成线圈之外，表面活性层设置在第一绝缘层之间线圈和第二绝缘层。根据本发明，能够防止线圈导体之间产生气泡，最终提高第二绝缘层的表面的平坦性，防止上磁极的特性劣化。

3. 发明授权

US5126907A Thin film magnetic head having at least one magnetic core member made at least partly of a material having a high saturation magnetic flux density 失效
标题翻译：薄膜磁头具有至少部分地由具有高饱和磁通密度的材料制成的至少一个磁芯构件
公开(公告)号：US5126907A
公开(公告)日：1992-06-30
申请号：US525666
申请日：1990-05-21
申请人： Yoshihiro Hamakawa , Isamu Yuito , Hisashi Takano , Naoki Koyama , Eijin Moriwaki , Shinobu Sasaki , Kazuo Shiiki
发明人： Yoshihiro Hamakawa , Isamu Yuito , Hisashi Takano , Naoki Koyama , Eijin Moriwaki , Shinobu Sasaki , Kazuo Shiiki
IPC分类号： G11B5/31
CPC分类号： G11B5/3153 , G11B5/3113
摘要： A thin film magnetic head has a first magnetic core member carried by a substrate, a gap layer formed on the first magnetic core member, and a second magnetic core member formed in a spaced relation with the first magnetic core member. The second magnetic core member is coupled to the first magnetic core member to form a magnetic path and to have an end portion of the gap layer sandwiched by gap defining portions of the first and second magnetic core members. A coil conductor is wound about the magnetic path. In one embodiment, the first magnetic core member includes a first magnetic layer made of a magnetic material having stable magnetic properties during heat treatment and the second magnetic core member includes a second magnetic layer made of a material having a saturation flux density higher than that of the material of the first magnetic core member.
摘要翻译：薄膜磁头具有由基板承载的第一磁芯构件，形成在第一磁芯构件上的间隙层和与第一磁芯构件间隔开地形成的第二磁芯构件。第二磁芯部件耦合到第一磁芯部件以形成磁路，并且间隙层的端部夹在第一和第二磁芯部件的间隙限定部分之间。线圈导体缠绕在磁路上。在一个实施例中，第一磁芯构件包括由在热处理期间具有稳定磁特性的磁性材料制成的第一磁性层，第二磁芯构件包括由饱和磁通密度高于第一磁芯构件的材料。

4. 发明授权

US6111723A Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer 失效
标题翻译：适用于高密度记录和再现操作的窄轨道薄膜磁头及其制造方法，其中空气轴承表面具有至少一个含有非磁性导电层
公开(公告)号：US6111723A
公开(公告)日：2000-08-29
申请号：US84321
申请日：1998-05-26
申请人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
发明人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
IPC分类号： G11B5/11 , G11B5/127 , G11B5/187 , G11B5/31 , G11B5/39
CPC分类号： G11B5/3903 , G11B5/1278 , G11B5/1871 , G11B5/3103 , G11B5/3106 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/3967 , G11B5/112
摘要： In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film between them through a non-magnetic insulation layer, an induction type write head including poles formed in a moving direction of a medium and a conductor crossing the poles, and disposed in the proximity of the magnetoresistive head, and a substrate supporting these heads, the present invention discloses a composite magnetic head characterized in that part of a floating surface inclusive of the magnetic head constituent members has recesses and the read/write operations to and from the medium are effected by the portion interposed by these recesses.
摘要翻译：在包括具有磁阻效应的磁性薄膜的磁阻读头的复合磁头和通过非磁性绝缘层将它们插入在它们之间的软磁性部件的感应型写头，包括在移动方向上形成的磁极的介质和导体，并且设置在磁阻头附近以及支撑这些磁头的基板上，本发明公开了一种复合磁头，其特征在于，包括磁头构成部件的浮动面的一部分具有凹槽，并且来自介质的读/写操作由这些凹槽插入的部分实现。

5. 发明申请

US20060152862A1 Magnetoresistance effect elements, magnetic heads and magnetic storage apparatus 失效
标题翻译：磁阻效应元件，磁头和磁存储装置
公开(公告)号：US20060152862A1
公开(公告)日：2006-07-13
申请号：US11371244
申请日：2006-03-09
申请人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
发明人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
IPC分类号： G11B5/33
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/3909 , G11B5/3929 , G11B5/3967 , G11B2005/0002 , G11B2005/0016 , G11B2005/3996 , H01F10/324 , H01F10/3254 , H01F10/3268 , H01L43/08 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49155
摘要： The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a current flows in the intermediate layer. The film surfaces of all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.
摘要翻译：磁阻效应元件是至少具有磁性层和抵抗磁性层的绝缘材料，半导体或反铁磁材料的中间层的多层结构，并且磁阻效应元件至少在相对的磁性层上形成端子，从而电流在中间层中流动。构成磁阻效应元件的所有磁性层的膜表面基本上与磁记录介质的记录表面成直角相对。因此，能够极大地降低与磁记录介质的记录面对置的磁性层的面积，因此能够通过电流检测来自高密度记录磁记录介质的非常窄的区域的磁场穿透特性，穿过中间层。

6. 发明授权

US5850326A Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer 失效
标题翻译：适用于高密度记录和再现操作的窄轨道薄膜磁头及其制造方法，其中空气轴承表面具有至少一个含有非磁性导电层
公开(公告)号：US5850326A
公开(公告)日：1998-12-15
申请号：US192794
申请日：1994-02-07
申请人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
发明人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
IPC分类号： G11B5/11 , G11B5/127 , G11B5/187 , G11B5/31 , G11B5/39 , G11B5/147
CPC分类号： G11B5/3903 , G11B5/1278 , G11B5/1871 , G11B5/3103 , G11B5/3106 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/3967 , G11B5/112
摘要： In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film between them through a non-magnetic insulation layer, an induction type write head including poles formed in a moving direction of a medium and a conductor crossing the poles, and disposed in the proximity of the magnetoresistive head, and a substrate supporting these heads, part of a floating surface inclusive of the magnetic head constituent members has recesses and the read/write operations to and from the medium are effected by the portion interposed by these recesses.
摘要翻译：在包括具有磁阻效应的磁性薄膜的磁阻读头的复合磁头和通过非磁性绝缘层将它们插入在它们之间的软磁性部件的感应型写头，包括在移动方向上形成的磁极并且设置在磁阻头附近的基板和支撑这些磁头的基板，包括磁头构成部件在内的浮动表面的一部分具有凹部和从/ 介质由插入这些凹部的部分实现。

7. 发明授权

US07054120B2 Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect 失效
标题翻译：具有垂直记录介质和头部的磁性装置具有使用隧道效应的多层再现元件
公开(公告)号：US07054120B2
公开(公告)日：2006-05-30
申请号：US10700500
申请日：2003-11-05
申请人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
发明人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
IPC分类号： G11B5/39
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/3909 , G11B5/3929 , G11B5/3967 , G11B2005/0002 , G11B2005/0016 , G11B2005/3996 , H01F10/324 , H01F10/3254 , H01F10/3268 , H01L43/08 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49155
摘要： The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a current flows in the intermediate layer. The film surfaces of all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.
摘要翻译：磁阻效应元件是至少具有磁性层和抵抗磁性层的绝缘材料，半导体或反铁磁材料的中间层的多层结构，并且磁阻效应元件至少在相对的磁性层上形成端子，使得电流在中间层中流动。构成磁阻效应元件的所有磁性层的膜表面基本上与磁记录介质的记录表面成直角相对。因此，能够极大地降低与磁记录介质的记录面对置的磁性层的面积，因此能够通过电流检测来自高密度记录磁记录介质的非常窄的区域的磁场穿透特性，穿过中间层。

8. 发明授权

US06307707B1 Narrow track thin film head including magnetic poles machined by focused ion beam etching 失效
标题翻译：窄轨道薄膜头，包括通过聚焦离子束蚀刻加工的磁极
公开(公告)号：US06307707B1
公开(公告)日：2001-10-23
申请号：US09598492
申请日：2000-06-22
申请人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
发明人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
IPC分类号： G11B5147
CPC分类号： G11B5/3903 , G11B5/112 , G11B5/1278 , G11B5/1871 , G11B5/3103 , G11B5/3106 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/3967
摘要： In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film between them through a non-magnetic insulation layer, an induction type write head including poles formed in a moving direction of a medium and a conductor crossing the poles, and disposed in the proximity of the magnetoresistive head, and a substrate supporting these heads, the present invention discloses a composite magnetic head characterized in that part of a floating surface inclusive of the magnetic head constituent members has recesses and the read/write operations to and from the medium are effected by the portion interposed by these recesses.
摘要翻译：在包括具有磁阻效应的磁性薄膜的磁阻读头的复合磁头和通过非磁性绝缘层将它们插入在它们之间的软磁性部件的感应型写头，包括在移动方向上形成的磁极的介质和导体，并且设置在磁阻头附近以及支撑这些磁头的基板上，本发明公开了一种复合磁头，其特征在于，包括磁头构成部件的浮动面的一部分具有凹槽，并且来自介质的读/写操作由这些凹槽插入的部分实现。

9. 发明授权

US06278593B1 Magnetoresistance effect elements and magnetic heads using the tunneling magnetoresistive effect 失效
标题翻译：使用隧道磁阻效应的磁阻效应元件和磁头
公开(公告)号：US06278593B1
公开(公告)日：2001-08-21
申请号：US09468309
申请日：1999-12-21
申请人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
发明人： Ryoichi Nakatani , Masahiro Kitada , Naoki Koyama , Isamu Yuito , Hisashi Takano , Eijin Moriwaki , Mikio Suzuki , Masaaki Futamoto , Fumio Kugiya , Yoshibumi Matsuda , Kazuo Shiiki , Yoshinori Miyamura , Kyo Akagi , Takeshi Nakao , Hirotsugu Fukuoka , Takayuki Munemoto , Tokuho Takagaki , Toshio Kobayashi , Hideo Tanabe , Noboru Shimizu
IPC分类号： G11B539
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/3909 , G11B5/3929 , G11B5/3967 , G11B2005/0002 , G11B2005/0016 , G11B2005/3996 , H01F10/324 , H01F10/3254 , H01F10/3268 , H01L43/08 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49155
摘要： The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semicondutor or an antiferromagnetic material against the magnetic layers, and the magneto-resistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a current flows in the intermediate layer. The film surfaces of all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.
摘要翻译：磁阻效应元件是至少具有磁性层和抵抗磁性层的绝缘材料，半导体或反铁磁材料的中间层的多层结构，并且磁阻效应元件具有至少形成在相对的磁体上的端子层，使得电流在中间层中流动。构成磁阻效应元件的所有磁性层的膜表面基本上与磁记录介质的记录表面成直角相对。因此，能够极大地降低与磁记录介质的记录面对置的磁性层的面积，因此能够通过电流检测来自高密度记录磁记录介质的非常窄的区域的磁场穿透特性，穿过中间层。

10. 发明授权

US06839200B2 Combination perpendicular magnetic head having shield material formed at both ends of an upper pole of a write element 失效
标题翻译：具有形成在写入元件的上极两端的屏蔽材料的组合垂直磁头
公开(公告)号：US06839200B2
公开(公告)日：2005-01-04
申请号：US10687754
申请日：2003-10-20
申请人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
发明人： Hisashi Takano , Naoki Koyama , Hideo Tanabe , Eijin Moriwaki , Isamu Yuito , Kazuo Shiiki , Tsuyoshi Ohnishi , Tohru Ishitani , Toshio Kobayashi , Hideo Todokoro , Chiaki Ishikawa
IPC分类号： G11B5/11 , G11B5/127 , G11B5/187 , G11B5/31 , G11B5/39
CPC分类号： G11B5/3903 , G11B5/112 , G11B5/1278 , G11B5/1871 , G11B5/3103 , G11B5/3106 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/3967
摘要： In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film between them through a non-magnetic insulation layer, an induction type write head including poles formed in a moving direction of a medium and a conductor crossing the poles, and disposed in the proximity of the magnetoresistive head, and a substrate supporting these heads, the present invention discloses a composite magnetic head characterized in that part of a floating surface inclusive of the magnetic head constituent members has recesses and the read/write operations to and from the medium are effected by the portion interposed by these recesses.
摘要翻译：在包括具有磁阻效应的磁性薄膜的磁阻读头的复合磁头和通过非磁性绝缘层将它们插入在它们之间的软磁性部件的感应型写头，包括在移动方向上形成的磁极的介质和导体，并且设置在磁阻头附近以及支撑这些磁头的基板上，本发明公开了一种复合磁头，其特征在于，包括磁头构成部件的浮动面的一部分具有凹槽，并且来自介质的读/写操作由这些凹槽插入的部分实现。

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