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51. 发明申请

US20090059423A1 Magnetic recording head and magnetic recording apparatus 有权
标题翻译：磁记录头和磁记录装置
公开(公告)号：US20090059423A1
公开(公告)日：2009-03-05
申请号：US12153490
申请日：2008-05-20
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
IPC分类号： G11B5/33
CPC分类号： G11B5/02 , G11B5/1278 , G11B5/314 , G11B5/3153 , G11B2005/0002
摘要： A magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes operable to pass a current through the laminated body. The laminated body includes a first magnetic layer, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. A lamination direction of the laminated body is substantially parallel to a medium moving direction. In a first direction parallel to an air bearing surface and perpendicular to the lamination direction, the laminated body has a protruding portion that protrudes beyond an end of a surface of the main magnetic pole facing the laminated body.
摘要翻译：磁记录头包括：主磁极; 层压体; 以及可操作以使电流通过层叠体的一对电极。层叠体包括第一磁性层，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。层叠体的层叠方向大致平行于介质移动方向。在平行于空气轴承面并与层叠方向垂直的第一方向上，层叠体具有突出部，该突出部突出超过面对层叠体的主磁极的表面的端部。

52. 发明授权

US07336454B2 Magnetoresistance effect device having a bi-crystal structure composed of main grains each having a plurality of sub-grains 有权
标题翻译：具有由具有多个亚晶粒的主晶粒组成的双晶结构的磁阻效应器件
公开(公告)号：US07336454B2
公开(公告)日：2008-02-26
申请号：US11417195
申请日：2006-05-04
申请人： Hideaki Fukuzawa , Shin-ichi Nakamura , Yuzo Kamiguchi , Hitoshi Iwasaki , Akio Hori , Susumu Hashimoto
发明人： Hideaki Fukuzawa , Shin-ichi Nakamura , Yuzo Kamiguchi , Hitoshi Iwasaki , Akio Hori , Susumu Hashimoto
IPC分类号： G11B5/33
CPC分类号： G11B5/3932 , B82Y25/00 , H01F10/132 , H01F10/16 , H01F10/3281 , H01L43/08
摘要： A base film of a hard magnetic film containing Co as a structural element has a crystal metal base film such as a Cr film formed on the main surface of a substrate and a reactive base film (mixing layer) formed between the substrate and the crystal metal base film and having a reactive amorphous layer containing a structural element of the substrate and a structural element of the crystal metal base film. A hard magnetic film containing Co as a structural element is formed on the crystal metal base film. With the crystal metal base film such as the Cr film formed on an amorphous layer, a hard magnetic film with a bi-crystal structure can be obtained with high reproducibility. With the hard magnetic film, magnetic characteristics such as coercive force Hc, residual magnetization Mr, saturated magnetization Ms, and square ratio S can be improved without need to use a thick base film. The hard magnetic film containing Co as a structural element is applied to a bias magnetic field applying film of a magnetoresistance effect device and a record layer of a magnetic record medium.
摘要翻译：含有Co作为结构元件的硬磁性膜的基膜具有形成在基板的主表面上的Cr膜等晶体金属基膜和在基板和结晶金属之间形成的反应性基膜（混合层）并且具有包含基板的结构元件的反应性非晶层和晶体金属基膜的结构元件。在晶体金属基膜上形成含有Co作为结构元素的硬磁性膜。利用在非晶层上形成的Cr膜等晶体金属基膜，可以以高再现性获得具有双晶结构的硬磁性膜。对于硬磁性膜，可以提高矫顽力Hc，剩余磁化强度Mr，饱和磁化强度Ms和平方比S等磁特性，而无需使用厚基膜。含有Co作为结构元件的硬磁性膜被施加到磁阻效应装置的偏磁场施加膜和磁记录介质的记录层。

53. 发明授权

US07116527B1 Magnetoresistance effect device having hard magnetic film structural body 失效
标题翻译：具有硬磁性膜结构体的磁阻效应器件
公开(公告)号：US07116527B1
公开(公告)日：2006-10-03
申请号：US08940020
申请日：1997-09-29
申请人： Hideaki Fukuzawa , Shin-ichi Nakamura , Yuzo Kamiguchi , Hitoshi Iwasaki , Akio Hori , Susumu Hashimoto
发明人： Hideaki Fukuzawa , Shin-ichi Nakamura , Yuzo Kamiguchi , Hitoshi Iwasaki , Akio Hori , Susumu Hashimoto
IPC分类号： G11B5/33
CPC分类号： G11B5/3932 , B82Y25/00 , H01F10/132 , H01F10/16 , H01F10/3281 , H01L43/08
摘要： A base film of a hard magnetic film containing Co as a structural element has a crystal metal base film such as a Cr film formed on the main surface of a substrate and a reactive base film (mixing layer) formed between the substrate and the crystal metal base film and having a reactive amorphous layer containing a structural element of the substrate and a structural element of the crystal metal base film. A hard magnetic film containing Co as a structural element is formed on the crystal metal base film. With the crystal metal base film such as the Cr film formed on an amorphous layer, a hard magnetic film with a bi-crystal structure can be obtained with high reproducibility. With the hard magnetic film, magnetic characteristics such as coercive force Hc, residual magnetization Mr, saturated magnetization Ms, and square ratio S can be improved without need to use a thick base film. The hard magnetic film containing Co as a structural element is applied to a bias magnetic field applying film of a magnetoresistance effect device and a record layer of a magnetic record medium.
摘要翻译：含有Co作为结构元件的硬磁性膜的基膜具有形成在基板的主表面上的Cr膜等晶体金属基膜和在基板和结晶金属之间形成的反应性基膜（混合层）并且具有包含基板的结构元件的反应性非晶层和晶体金属基膜的结构元件。在晶体金属基膜上形成含有Co作为结构元素的硬磁性膜。利用在非晶层上形成的Cr膜等晶体金属基膜，可以以高再现性获得具有双晶结构的硬磁性膜。对于硬磁性膜，可以提高矫顽力Hc，剩余磁化强度Mr，饱和磁化强度Ms和平方比S等磁特性，而无需使用厚基膜。含有Co作为结构元件的硬磁性膜被施加到磁阻效应装置的偏磁场施加膜和磁记录介质的记录层。

54. 发明授权

US5552949A Magnetoresistance effect element with improved antiferromagnetic layer 失效
标题翻译：具有改进反铁磁层的磁阻效应元件
公开(公告)号：US5552949A
公开(公告)日：1996-09-03
申请号：US204676
申请日：1994-03-02
申请人： Susumu Hashimoto , Yuzo Kamiguchi , Hitoshi Iwasaki , Atsuhito Sawabe , Masashi Sahashi
发明人： Susumu Hashimoto , Yuzo Kamiguchi , Hitoshi Iwasaki , Atsuhito Sawabe , Masashi Sahashi
IPC分类号： G11B5/39 , H01L43/08
CPC分类号： G11B5/399 , H01L43/08
摘要： An exchange coupled film is presented, which has an antiferromagnetic film being made of N.sub.100-z Mn.sub.z (where N is at least one selected from the group consisting of Cu, Ru, Rh, Re, Pd, Pt, Ag, Au, Os, and Ir; and 24.ltoreq.z.ltoreq.75) and having a tetragonal crystalline structure or being made of Cr.sub.100-x M.sub.x (where M is at least one selected from the group consisting of elements of group 3b of periodic table, Cu, Ru, Rh, Re, Pt, Pd, Ag, Au, Os, Ir, Mn, Fe, Co, and V; and x is in the range of 0
摘要翻译：提出了一种交换耦合膜，其具有由N100-zMnz（其中N是选自由Cu，Ru，Rh，Re，Pd，Pt，Ag，Au，Os和...组成的组中的至少一种）的反铁磁膜 Ir;和24 75），并且具有四方晶系结构或由Cr100-xMx（其中M是选自元素周期表第3b族元素中的至少一种，Cu，Ru ，Rh，Re，Pt，Pd，Ag，Au，Os，Ir，Mn，Fe，Co和V; x在0

55. 发明授权

US5493465A Magnetoresistance effect element and magnetic recording apparatus 失效
标题翻译：磁电阻效应元件和磁记录装置
公开(公告)号：US5493465A
公开(公告)日：1996-02-20
申请号：US209927
申请日：1994-03-14
申请人： Yuzo Kamiguchi , Susumu Hashimoto , Atsuhito Sawabe , Hitoshi Iwasaki , Masashi Sahashi
发明人： Yuzo Kamiguchi , Susumu Hashimoto , Atsuhito Sawabe , Hitoshi Iwasaki , Masashi Sahashi
IPC分类号： G01R33/09 , G11B5/39 , H01L43/08
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3903 , H01L43/08
摘要： A magnetoresistance effect element has a pair of ferromagnetic layers with a middle non-magnetic metallic layer interposed therebetween. The middle non-magnetic metallic layer has lamination structure of non-magnetic metallic thin films formed of at least two kinds of non-magnetic metallic materials. In the lamination structure of the non-magnetic metallic thin film, Fermi energies of the non-magnetic metallic thin films disposed on interface sides of the ferromagnetic layers has a value closer to a Fermi energy in a direction of spin whose electron spin dependent mean free path is long among Fermi energies of the ferromagnetic layers. A non-magnetic metallic thin film is disposed between such two non-magnetic metallic thin films. Difference in Fermi energy between non-magnetic metallic thin films made of two kinds of non-magnetic metallic materials is 0.5 eV or more. By the use of such a middle non-magnetic metallic layer, while the thickness thereof is as thin as possible, exchange coupling between ferromagnetic layers can be small. Thus, resistance change sensitivity can be enhanced.
摘要翻译：磁阻效应元件具有介于其间的中间非磁性金属层的一对铁磁层。中间非磁性金属层具有由至少两种非磁性金属材料形成的非磁性金属薄膜的叠层结构。在非磁性金属薄膜的层压结构中，设置在铁磁层的界面侧上的非磁性金属薄膜的费米能量在旋转方向具有更接近费米能量的值，其电子自旋依赖平均自由度在铁磁层的费米能量之间的路径很长。这种非磁性金属薄膜之间设有非磁性金属薄膜。由两种非磁性金属材料制成的非磁性金属薄膜之间的费米能的差异为0.5eV以上。通过使用这样的中间非磁性金属层，虽然其厚度尽可能薄，铁磁层之间的交换耦合可以很小。因此，可以提高电阻变化灵敏度。

56. 发明授权

US08654480B2 Magnetic head with spin torque oscillator and magnetic recording head 失效
标题翻译：磁头与旋转扭矩振荡器和磁记录头
公开(公告)号：US08654480B2
公开(公告)日：2014-02-18
申请号：US13545601
申请日：2012-07-10
申请人： Mariko Shimizu , Hitoshi Iwasaki , Kenichiro Yamada , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita
发明人： Mariko Shimizu , Hitoshi Iwasaki , Kenichiro Yamada , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita
IPC分类号： G11B5/00
CPC分类号： G11B5/314 , G11B2005/0005 , G11B2005/0024
摘要： An example magnetic head includes a recording pole to generate a recording magnetic field, a spin torque oscillator formed in the vicinity of the recording magnetic pole and a hard bias film provided at both end portions of a bias layer and an oscillation layer of spin torque oscillator. The hard bias film is configured to apply a magnetic field to the bias layer and the oscillation layer.
摘要翻译：示例性磁头包括用于产生记录磁场的记录极，在记录磁极附近形成的自旋转矩振荡器和设置在偏置层的两个端部和旋转扭矩振荡器的振荡层的硬偏置膜。硬偏置膜被配置为向偏置层和振荡层施加磁场。

57. 发明授权

US08547662B2 Magnetic recording head and magnetic recording apparatus 有权
标题翻译：磁记录头和磁记录装置
公开(公告)号：US08547662B2
公开(公告)日：2013-10-01
申请号：US13541371
申请日：2012-07-03
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
IPC分类号： G11B5/147 , G11B5/23 , G11B5/187
CPC分类号： G11B5/17 , G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , G11B2005/0024
摘要： An example magnetic writing head includes a main magnetic pole, a coil to generate an ampere magnetic field to magnetize the main magnetic pole to cause the magnetized main magnetic pole to generate a magnetic field, and a laminated body. The laminated body includes a first magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole and a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole.
摘要翻译：磁性写入头包括主磁极，产生安培磁场以磁化主磁极以使磁化的主磁极产生磁场的线圈和层叠体。层叠体包括矫顽力低于由主磁极施加的磁场的矫顽力的第一磁性层和具有低于由主磁极施加的磁场的矫顽力的第二磁性层。

58. 发明申请

US20110300409A1 MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING APPARATUS 有权
标题翻译：磁记录头和磁记录装置
公开(公告)号：US20110300409A1
公开(公告)日：2011-12-08
申请号：US13214012
申请日：2011-08-19
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
IPC分类号： G11B5/187
CPC分类号： G01S19/36 , G01S19/30 , Y10T428/1186
摘要： An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes is operable to pass a current through the laminated body.
摘要翻译：一个示例磁记录头包括：主磁极; 层压体; 和一对电极。层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层层和第二磁性层。该对电极可操作以使电流通过层压体。

59. 发明授权

US07957098B2 Magnetic recording head and magnetic recording apparatus 有权
标题翻译：磁记录头和磁记录装置
公开(公告)号：US07957098B2
公开(公告)日：2011-06-07
申请号：US12155329
申请日：2008-06-02
申请人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
发明人： Kenichiro Yamada , Hitoshi Iwasaki , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu , Shuichi Murakami , Tadashi Kai
IPC分类号： G11B5/147 , G11B5/23 , G11B5/187
CPC分类号： G11B5/17 , G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , G11B2005/0024
摘要： A magnetic writing head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes are operable to pass a current through the laminated body.
摘要翻译：磁头包括：主磁极; 层压体; 和一对电极。层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层层和第二磁性层。该对电极可操作以使电流通过层叠体。

60. 发明申请

US20090225465A1 Magnetic recording head and magnetic recording apparatus 审中-公开
标题翻译：磁记录头和磁记录装置
公开(公告)号：US20090225465A1
公开(公告)日：2009-09-10
申请号：US12232014
申请日：2008-09-09
申请人： Hitoshi Iwasaki , Kenichiro Yamada , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
发明人： Hitoshi Iwasaki , Kenichiro Yamada , Junichi Akiyama , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
IPC分类号： G11B21/02 , G11B5/33
CPC分类号： G11B5/1278 , G11B5/3116 , G11B2005/001
摘要： A magnetic recording head includes a main magnetic pole, and a laminated body. The laminated body includes a first magnetic layer, a second magnetic layer, a first intermediate layer provided between the first magnetic layer and the second magnetic layer, and a third magnetic layer laminated with the first and second magnetic layers and the first intermediate layer. The third magnetic layer exerts a magnetic field on at least any of the first magnetic layer and the second magnetic layer. The third magnetic layer has larger saturation magnetization than at least any of the first magnetic layer and the second magnetic layer.
摘要翻译：磁记录头包括主磁极和层叠体。层叠体包括第一磁性层，第二磁性层，设置在第一磁性层和第二磁性层之间的第一中间层，以及与第一和第二磁性层和第一中间层层叠的第三磁性层。第三磁性层在第一磁性层和第二磁性层中的至少任一个上施加磁场。第三磁性层比第一磁性层和第二磁性层中的至少任意一个具有更大的饱和磁化强度。

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