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1. 发明授权

US4636897A Perpendicular magnetic recording and reproducing thin film head 失效
标题翻译：垂直磁记录和再现薄膜头
公开(公告)号：US4636897A
公开(公告)日：1987-01-13
申请号：US539386
申请日：1983-10-06
申请人： Hitoshi Nakamura , Kasuo Shiiki , Isamu Yuito , Yoshihiro Shiroishi , Hideo Fujiwara , Kiminari Shinagawa , Akemi Iijima
发明人： Hitoshi Nakamura , Kasuo Shiiki , Isamu Yuito , Yoshihiro Shiroishi , Hideo Fujiwara , Kiminari Shinagawa , Akemi Iijima
IPC分类号： G11B5/31 , G11B5/127 , G11B5/23 , G11B5/147 , G11B5/187 , G11B5/235
CPC分类号： G11B5/1278
摘要： A perpendicular magnetic recording and reproducing thin film head of a structure excellent in magnetic characteristics and easy of fabrication, wherein a lower magnetic layer disposed on a flat nonmagnetic substrate is used as a main magnetic pole, a first insulator layer is formed on the main magnetic pole, a conductor for a coil and a second insulator layer are disposed on the first insulator layer, and an upper magnetic layer which lies in contact with the lower magnetic layer through the first insulator layer at one end thereof and directly at the other end thereof and which overlies the second insulator layer in a part thereof other than both the ends is disposed and used as an auxiliary magnetic pole.
摘要翻译：磁性特性优良，制造容易的结构的垂直磁记录再生薄膜头，其特征在于，使用设置在平面非磁性基板上的下部磁性层作为主磁极，在主磁体上形成第一绝缘体层极，用于线圈的导体和第二绝缘体层设置在第一绝缘体层上，并且上磁性层通过第一绝缘体层在其一端直接与下磁性层接触，并且在另一端处并且在除了两端的部分中的第二绝缘体层之外的位置被布置并用作辅助磁极。

2. 发明授权

US4631612A Magnetic recording and reproducing system 失效
标题翻译：磁记录和再现系统
公开(公告)号：US4631612A
公开(公告)日：1986-12-23
申请号：US513615
申请日：1983-07-14
申请人： Kazuo Shiiki , Yoshihiro Shiroishi , Isamu Yuito , Kiminari Shinagawa , Yasutaro Uesaka , Hideo Fujiwara , Hitoshi Nakamura
发明人： Kazuo Shiiki , Yoshihiro Shiroishi , Isamu Yuito , Kiminari Shinagawa , Yasutaro Uesaka , Hideo Fujiwara , Hitoshi Nakamura
IPC分类号： G11B5/31 , G11B5/00 , G11B5/02 , G11B5/127 , G11B5/62
CPC分类号： G11B5/1278 , G11B5/00 , G11B5/127 , G11B5/62
摘要： A magnetic recording and reproducing system comprising (i) a magnetic head including a first magnetic pole whose saturation flux density is at least 7 kG and whose edge face is 0.15-0.5 .mu.m thick, and a second magnetic pole which lies on the same side as the first magnetic pole with respect to a recording medium and whose edge face is at least 10 times thicker than that of the first magnetic pole, and (ii) the perpendicular magnetic recording medium including a perpendicular magnetization layer which has a coercive force of 250-600 Oe. in a direction perpendicular to a plane thereof and which is 0.1-0.5 .mu.m thick.
摘要翻译：一种磁记录和再现系统，包括（i）磁头，其包括饱和磁通密度至少为7kG并且其边缘面为0.15-0.5μm厚的第一磁极，以及位于同一侧的第二磁极作为相对于记录介质的第一磁极并且其边缘面比第一磁极的边缘面厚至少10倍，以及（ii）垂直磁记录介质包括矫顽力为250的垂直磁化层 -600 Oe 在垂直于其平面的方向上，厚度为0.1-0.5μm。

3. 发明授权

US4651248A Thin-film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：US4651248A
公开(公告)日：1987-03-17
申请号：US500907
申请日：1983-06-03
申请人： Kazuo Shiiki , Yoshihiro Shiroishi , Isamu Yuito , Kiminari Shinagawa , Hideo Fujiwara
发明人： Kazuo Shiiki , Yoshihiro Shiroishi , Isamu Yuito , Kiminari Shinagawa , Hideo Fujiwara
IPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B5/23 , G11B5/147 , G11B5/187
CPC分类号： G11B5/3143 , G11B5/1278 , G11B5/31
摘要： A thin-film magnetic head which has a structure wherein a spiral conductor coil having a plurality of turns is disposed between first and second magnetic layers being substantially in parallel with each other, through upper and lower inorganic insulator layers, and in which a part of the outermost turn of the conductor coil is exposed on a face opposite a magnetic recording medium along with the upper and lower inorganic insulator layers, to form a magnetic gap. This head can be readily manufactured by a manufacturing method including the step of forming the outermost turn of the conductor coil on the side of the face opposite the magnetic recording medium so as to be wider than any other part of the conductor coil, and the step of thereafter machining the face opposite the magnetic recording medium so as to expose the outermost turn of the conductor coil on the face opposite the magnetic recording medium. The magnetic head of the present invention is suited to high-density recording, and is high in recording and reproducing efficiencies and also in reliability.
摘要翻译：具有以下结构的薄膜磁头：其中具有多个匝的螺旋导体线圈通过上下无机绝缘体层彼此基本上彼此平行地设置在第一和第二磁性层之间，并且其中一部分导体线圈的最外圈与上下无机绝缘体层一起在与磁记录介质相对的面上露出，形成磁隙。该头可以容易地通过制造方法制造，该方法包括以下步骤：在与磁记录介质相对的面的一侧形成导体线圈的最外圈，以便比导体线圈的任何其它部分宽，并且步骤之后加工与磁记录介质相对的面，以便暴露在与磁记录介质相对的表面上的导体线圈的最外圈。本发明的磁头适用于高密度记录，记录和再现效率高，可靠性高。

4. 发明授权

US4539616A Thin film magnetic head and fabricating method thereof 失效
标题翻译：薄膜磁头及其制造方法
公开(公告)号：US4539616A
公开(公告)日：1985-09-03
申请号：US400019
申请日：1982-07-20
申请人： Isamu Yuito , Kazuo Shiiki , Atsushi Saiki , Yoshio Homma , Noriyuki Kumasaka , Yoshihiro Shiroishi , Mitsuhiro Kudo
发明人： Isamu Yuito , Kazuo Shiiki , Atsushi Saiki , Yoshio Homma , Noriyuki Kumasaka , Yoshihiro Shiroishi , Mitsuhiro Kudo
IPC分类号： G11B5/17 , G11B5/31 , G11B5/22 , G11B5/20
CPC分类号： G11B5/313 , G11B5/17 , Y10T29/49064
摘要： Herein disclosed is a thin film magnetic head which is so constructed that a conductor layer arranged in a non-magnetic insulating layer isolating two magnetic poles and adapted to form a coil of plural turns has a height made larger than the width and gap thereof. A method of fabricating that head includes the step of forming a non-magnetic insulating layer, the step of etching the insulating layer by using a mask layer formed thereover as a mask, the step of depositing a metal for providing a conductor layer, the step of removing the mask layer together with the metal thereover, and the step forming a coating of a non-magnetic insulating layer thereover, thereby to form the conductor layer. The head thus fabricated has its magnetic recording and reproducing characteristics improved.
摘要翻译：这里公开了一种薄膜磁头，其结构使得布置在隔离两个磁极并适于形成多个匝的线圈的非磁性绝缘层中的导体层具有比其宽度和间隙大的高度。制造该头的方法包括形成非磁性绝缘层的步骤，通过使用其上形成的掩模层作为掩模蚀刻绝缘层的步骤，沉积用于提供导体层的金属的步骤，步骤与金属一起除去掩模层，以及在其上形成非磁性绝缘层的涂层的步骤，从而形成导体层。如此制造的磁头具有改善的磁记录和再现特性。

5. 发明授权

US4907114A Mangeto-resistive type read head 失效
标题翻译：电阻型读头
公开(公告)号：US4907114A
公开(公告)日：1990-03-06
申请号：US201739
申请日：1988-06-03
申请人： Kazuo Shiiki , Masahiro Kitada , Hideo Tanabe , Hitoshi Nakamura , Isamu Yuito , Hisashi Takano
发明人： Kazuo Shiiki , Masahiro Kitada , Hideo Tanabe , Hitoshi Nakamura , Isamu Yuito , Hisashi Takano
IPC分类号： G11B5/39
CPC分类号： G11B5/3932 , G11B5/3987
摘要： A magneto-resistive type read head has a substrate, a magnetic film exhibiting a magneto-resistive effect arranged in the widthwise direction of the track of a magnetic writing disk, and lead electrodes for feeding an electric current to the track width portion of the magnetic film for reading the signals written in the magnetic writing disk. The magneto-resistive film extends over a width wider than the track width portion and a soft magnetic thin film is formed over the magneto-resistive film on either side of the track width portion to absorb the domain wall so that the magneto-resistive film takes the single domain structure.
摘要翻译：磁阻型读取头具有衬底，在磁性写盘的轨道的宽度方向上布置的磁阻效应的磁性膜和用于将电流馈送到磁性磁道的磁道宽度部分的引线电极用于读取写入磁性写入盘的信号的胶片。磁阻薄膜的宽度大于轨道宽度部分的宽度，并且在磁道宽度部分两侧的磁阻膜上方形成软磁性薄膜，以吸收畴壁，使得磁阻薄膜单域结构。

6. 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。

7. 发明授权

US5897969A Method of fabricating a magnetoresistive thin-film magnetic head 失效
标题翻译：制造磁阻薄膜磁头的方法
公开(公告)号：US5897969A
公开(公告)日：1999-04-27
申请号：US975332
申请日：1997-11-20
申请人： Akira Taniyama , Makoto Morijiri , Haruko Tanaka , Isamu Yuito , Eiji Ashida , Hiroaki Koyanagi , Hideo Tanabe , Tetsuo Kobayashi
发明人： Akira Taniyama , Makoto Morijiri , Haruko Tanaka , Isamu Yuito , Eiji Ashida , Hiroaki Koyanagi , Hideo Tanabe , Tetsuo Kobayashi
IPC分类号： G11B5/31 , G11B5/39 , B32B9/00
CPC分类号： G11B5/3906 , G11B5/3163 , G11B5/3903 , G11B5/3932
摘要： A magnetic domain controlling film for controlling the magnetic domain of a magnetoresistive film is formed by the patterning technique on a lower insulating film formed on a lower shield film. The magnetoresistive film is formed on the magnetic domain controlling film for converting a magnetic signal from a magnetic recording medium into an electrical signal using the magnetoresistive effect. A resist pattern is formed by the lift-off method on the magnetoresistive film in such a fashion as to leave a region of the magnetoresistive film corresponding to the tracks of the magnetic recording medium. A magnetoresistive element is formed by ion milling leaving only the portion of the magnetoresistive film corresponding to the tracks.
摘要翻译：通过在下屏蔽膜上形成的下绝缘膜上的图案化技术形成用于控制磁阻膜的磁畴的磁畴控制膜。磁阻膜形成在磁畴控制膜上，用于使用磁阻效应将来自磁记录介质的磁信号转换成电信号。通过剥离方法在磁阻膜上形成抗蚀剂图案，以便留下与磁记录介质的轨道相对应的磁阻膜的区域。通过离子铣削形成磁阻元件，仅留下对应于轨道的磁阻膜的部分。

8. 发明授权

US5371643A Magnetoresistive head structure that prevents under film from undesirable etching 失效
标题翻译：防止膜下不希望腐蚀的磁阻头结构
公开(公告)号：US5371643A
公开(公告)日：1994-12-06
申请号：US927955
申请日：1992-08-11
申请人： Isamu Yuito , Makoto Morijiri , Tooru Takeura , Katsunori Ohwada , Masahiro Kitada
发明人： Isamu Yuito , Makoto Morijiri , Tooru Takeura , Katsunori Ohwada , Masahiro Kitada
IPC分类号： G11B5/39 , G11B5/33
CPC分类号： G11B5/3903 , Y10T29/49052
摘要： A magnetoresistive head is fabricated with a high yield rate by preventing the electrode film from breaking down. An upper shield film is formed with an electrode separation layer and an upper gap film disposed between it and the electrode film. The electrode film is prevented from being etched when the upper shield film is subjected to ion milling as a result. Further, the upper gap film is laid on top of the electrode separation layer, and a lead is satisfactorily protected and prevented from being exposed. Thus, the upper shield film and the lead are prevented from becoming short-circuited as a result of the disconnection of the electrode film and the exposure of the lead.
摘要翻译：通过防止电极膜破裂，以高产率制造磁阻头。上部屏蔽膜形成有电极分离层和设置在其与电极膜之间的上间隙膜。因此，当上屏蔽膜经受离子铣削时，防止电极膜被蚀刻。此外，上间隙膜被放置在电极分离层的顶部，并且引线被令人满意地保护并防止暴露。因此，由于电极膜的断开和引线的暴露，防止了上屏蔽膜和引线的短路。

9. 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。

10. 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。

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