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31. 发明授权

US06493197B2 Magneto-resistance effect type head and information reproducing apparatus 失效
标题翻译：垂直偏置底层和磁阻效应型头
公开(公告)号：US06493197B2
公开(公告)日：2002-12-10
申请号：US09955358
申请日：2001-09-18
申请人： Junichi Ito , Michiaki Kanamine , Hitoshi Kanai
发明人： Junichi Ito , Michiaki Kanamine , Hitoshi Kanai
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/3113 , G11B5/3903 , G11B5/3932 , G11B2005/3996
摘要： The present invention provides a magneto-resistance effect type head for reproducing, with a high sensitivity, information recorded at a high recording density on a recording medium while inhibiting occurrence of the Barkhausen noise, including a magneto-resistance effect element comprised of a multi-layer film containing a free magnetic layer having its magnetization direction changing in correspondence with an external magnetic field, an insulating film, a non-magnetic underlying layer formed on the insulating film, and one pair of magnetic domain-wall control layers formed on the underlying layer in its in-face direction with a predetermined spacing therebetween, for inhibiting movement of magnetic domain wall of the free magnetic layer, in such a configuration that the free magnetic layer has its both ends directly stacked on the pair of the magnetic domain-wall control layers and also has its middle part directly stacked on the underlying layer.
摘要翻译：本发明提供了一种用于以高灵敏度将以高记录密度记录在信息记录介质上的信息同时抑制巴克豪森噪声的发生的磁阻效应型磁头，包括由多声道组成的磁阻效应元件，其包含其磁化方向与外部磁场相对应地变化的自由磁性层，绝缘膜，形成在绝缘膜上的非磁性下层，以及形成在底层上的一对磁畴壁控制层层之间以预定的间隔在其面内方向上，用于抑制自由磁性层的磁畴壁的移动，使得自由磁性层的两端直接堆叠在一对磁畴壁上控制层并且其中间部分直接堆叠在下层上。

32. 发明授权

US06483674B1 Spin valve head, production process thereof and magnetic disk device 失效
标题翻译：旋转阀头，其生产工艺和磁盘装置
公开(公告)号：US06483674B1
公开(公告)日：2002-11-19
申请号：US09707179
申请日：2000-11-06
申请人： Hitoshi Kanai , Junichi Ito
发明人： Hitoshi Kanai , Junichi Ito
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3163 , G11B5/3903 , G11B5/3932 , G11B5/3967 , H01F10/3268
摘要： A spin valve head comprises a spin valve film comprising a regular antiferromagnetic layer, a pinned magnetic layer, an intermediate layer and a free magnetic layer; a pair of electrodes arranged at both ends of the spin valve film; and a pair of exchange bias magnetic field impressing layers arranged at both ends of the free magnetic layer of the spin valve film, wherein the exchange bias magnetic field impressing layers are made of antiferromagnetic material, and the spin valve film extends over the exchange bias magnetic field impressing layers. The spin valve head is characterized in that the abutted junction region is extended so that the occurrence of Barkhausen noise can be more effectively suppressed; and the abutted junction region is stably formed without being affected by the film formation process.
摘要翻译：自旋阀头包括自旋阀膜，其包括规则反铁磁层，钉扎磁性层，中间层和自由磁性层; 布置在自旋阀膜两端的一对电极; 以及布置在自旋阀膜的自由磁性层的两端的一对交换偏置磁场施加层，其中交换偏置磁场施加层由反铁磁材料制成，并且自旋阀膜延伸超过交换偏压磁现场打印层。自旋阀头的特征在于，邻接接合区域延伸，从而可以更有效地抑制巴克豪森噪声的发生; 并且在不受膜形成过程的影响的情况下稳定地形成邻接接合区域。

33. 发明授权

US5850323A Magnetoresistive head and magnetic recording drive 失效
标题翻译：磁阻头和磁记录驱动器
公开(公告)号：US5850323A
公开(公告)日：1998-12-15
申请号：US630116
申请日：1996-04-08
申请人： Hitoshi Kanai
发明人： Hitoshi Kanai
IPC分类号： G11B5/00 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3925 , G11B5/3977 , G11B2005/3996 , G11B5/00
摘要： This invention concerns a magnetoresistive head for converting a change in magnetic field into a change in resistance by virtue of a spin valve magnetoresistive effect. This magneto-resistive transducer has superposed sequentially on a substrate an underlayer formed of two layers consisting of a tantalum film and a nickel iron based alloy film, an antiferromagnetic layer, a first soft magnetic layer, a nonmagnetic metal layer, and a second soft magnetic layer in the order mentioned.
摘要翻译：本发明涉及一种用于通过自旋阀磁阻效应将磁场变化转换为电阻变化的磁阻头。该磁阻换能器依次叠加在基板上，由由钽膜和镍铁基合金膜，反铁磁层，第一软磁性层，非磁性金属层和第二软磁体层中提到的顺序。

34. 发明申请

US20070160674A1 Method for producing calcium component powder containing oil-soluble substance 审中-公开
标题翻译：含有油溶性物质的钙成分粉末的制造方法
公开(公告)号：US20070160674A1
公开(公告)日：2007-07-12
申请号：US10598894
申请日：2005-03-16
申请人： Masaaki Nakahara , Akihiko Kurosaki , Hiroshi Otake , Hitoshi Kanai , Hiroshi Yokokawa , Kiyoshi Kumabe , Hiroyuki Yanaka
发明人： Masaaki Nakahara , Akihiko Kurosaki , Hiroshi Otake , Hitoshi Kanai , Hiroshi Yokokawa , Kiyoshi Kumabe , Hiroyuki Yanaka
IPC分类号： A61K9/14
CPC分类号： A23K20/24 , A23D7/0053 , A23D7/0056 , A23D9/05 , A23K20/158 , A23K40/10 , A23L33/16 , A23P10/47
摘要： The present invention provides a method for producing a powder containing an oil-soluble substance, fromn which substantially no oil-soluble substances are eluted upon application of pressure, heat, or water. The present invention relates to a method for producing a powder containing an oil-soluble substance, which comprises, dispersing an oil-soluble substance and a calcium component in an aqueous solution in the presence of a surfactant, and then drying the thus obtained liquid mixture.
摘要翻译：本发明提供一种含有油溶性物质的粉末的制造方法，其在施加压力，热量或水时基本上不溶解油溶性物质。本发明涉及一种含有油溶性物质的粉末的制造方法，其特征在于，在表面活性剂的存在下，将油溶性物质和钙成分分散在水溶液中，然后干燥所得到的液体混合物。

35. 发明授权

US07197813B2 Method of accurate evaluation on magnetoresistive read element 失效
标题翻译：磁阻读取元件的精确评估方法
公开(公告)号：US07197813B2
公开(公告)日：2007-04-03
申请号：US09951290
申请日：2001-09-12
申请人： Naoki Mukoyama , Kenichiro Yamada , Hitoshi Kanai , Manabu Watanabe , Norikazu Ozaki , Kazuaki Satoh
发明人： Naoki Mukoyama , Kenichiro Yamada , Hitoshi Kanai , Manabu Watanabe , Norikazu Ozaki , Kazuaki Satoh
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： B82Y25/00 , B82Y40/00 , G11B5/3166 , G11B5/3903 , G11B5/455 , G11B2005/0008 , H01F41/302 , Y10T29/49032 , Y10T29/49036 , Y10T29/49043 , Y10T29/49044 , Y10T29/49128
摘要： The magnetoresistance is measured for a magnetoresistive layered-structure, such as a spin valve film, prior to formation of an upper shield layer as well as patterning of a lower shield layer. The magnetic influence of the upper and lower shield layers can completely be eliminated during the measurement of the magnetoresistance. The magnetoresistive layered-structure is allowed to reliably receive the magnetic field over a wider range including a lower magnetic field range. It is accordingly possible to measure the magnetoresistance properly reflecting the magnetic characteristic of the magnetoresistive layered-structure. It is possible to find deficiency of a magnetoresistive read element at an earlier stage of the method.
摘要翻译：在形成上屏蔽层之前测量磁电阻，例如自旋阀膜等磁阻层状结构以及下屏蔽层的图案化。在磁阻测量期间，可以完全消除上下屏蔽层的磁影响。允许磁阻分层结构在包括较低磁场范围的更宽范围内可靠地接收磁场。因此，可以测量适当地反映磁阻分层结构的磁特性的磁阻。在该方法的较早阶段可以发现磁阻读取元件的缺陷。

36. 发明授权

US07095591B2 Head slider having microactuator 失效
标题翻译：头滑块具有微致动器
公开(公告)号：US07095591B2
公开(公告)日：2006-08-22
申请号：US10643267
申请日：2003-08-19
申请人： Takahiro Imamura , Yukihiro Uematsu , Hitoshi Kanai , Shinji Koganezawa , Ryosuke Koishi , Takeaki Shimanouchi
发明人： Takahiro Imamura , Yukihiro Uematsu , Hitoshi Kanai , Shinji Koganezawa , Ryosuke Koishi , Takeaki Shimanouchi
IPC分类号： G11B5/60
CPC分类号： G11B5/5552 , G11B5/6082
摘要： A pair of slits are defined in a slider body of a head slider so as to extend from a trailing end surface to the leading end on the slider body. A movable block is established in the slider body between the slits. The slits ensure the extent of movement for the movable block. Elongated plates enable a relative displacement between the movable block and a stationary block. A head element is mounted on a trailing end surface of the movable block. The thickness of a non-magnetic layer corresponds to the gap length of the head element. The gap length of the head element can easily be controlled based on deposition of the non-magnetic layer. The thickness of the non-magnetic layer can be reduced in a relatively facilitated manner, so that the gap length of the head element can easily be minimized.
摘要翻译：一个狭缝被限定在头部滑动件的滑块体中，以便从滑动件主体的后端表面延伸到前端。在滑块体之间在狭缝之间建立可动块。狭缝确保可移动块的移动程度。细长的板使得可移动块和固定块之间的相对位移。头元件安装在可移动块的后端表面上。非磁性层的厚度对应于头元件的间隙长度。基于非磁性层的沉积可以容易地控制头元件的间隙长度。可以以相对便利的方式减小非磁性层的厚度，使得头元件的间隙长度可以容易地最小化。

37. 发明申请

US20060119989A1 SPIN VALVE MAGNETORESISTIVE SENSOR HAVING CPP STRUCTURE 失效
标题翻译：具有CPP结构的旋转阀磁传感器
公开(公告)号：US20060119989A1
公开(公告)日：2006-06-08
申请号：US11327676
申请日：2006-01-06
申请人： Yoshihiko Seyama , Atsushi Tanaka , Keiichi Nagasaka , Yutaka Shimizu , Shin Eguchi , Hitoshi Kanai , Reiko Kondo , Hitoshi Kishi , Junya Ikeda
发明人： Yoshihiko Seyama , Atsushi Tanaka , Keiichi Nagasaka , Yutaka Shimizu , Shin Eguchi , Hitoshi Kanai , Reiko Kondo , Hitoshi Kishi , Junya Ikeda
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3903 , G11B2005/3996 , H01F10/3259 , H01F10/3268 , H01F10/3295
摘要： Disclosed herein is a spin valve magnetoresistive sensor including a first conductor layer, a free ferromagnetic layer provided on the first conductor layer, a nonmagnetic intermediate layer provided on the free ferromagnetic layer, a pinned ferromagnetic layer provided on the nonmagnetic intermediate layer, an antiferromagnetic layer provided on the pinned ferromagnetic layer, and a second conductor layer provided on the antiferromagnetic layer. At least one of the free ferromagnetic layer and the pinned ferromagnetic layer has a thickness larger than that providing a maximum resistance change rate or resistance change amount in the case of passing a current in an in-plane direction of the at least one layer. That is, the thickness of at least one of the free ferromagnetic layer and the pinned ferromagnetic layer falls in the range of 3 nm to 12 nm.
摘要翻译：本文公开了一种自旋阀磁阻传感器，其包括第一导体层，设置在第一导体层上的自由铁磁层，设置在自由铁磁层上的非磁性中间层，设置在非磁性中间层上的钉扎铁磁层，反铁磁层设置在被钉扎的铁磁层上，以及设置在反铁磁层上的第二导体层。自由铁磁层和被钉扎的铁磁层中的至少一个具有大于在通过至少一个层的面内方向的电流的情况下提供最大电阻变化率或电阻变化量的厚度的厚度。也就是说，自由铁磁层和被钉扎铁磁层中的至少一个的厚度落在3nm至12nm的范围内。

38. 发明授权

US06819533B2 Magnetoresistive head in which an interlayer coupling field applied to a free magnetic layer is reduced 失效
标题翻译：其中施加到自由磁性层的层间耦合场减小的磁阻头
公开(公告)号：US06819533B2
公开(公告)日：2004-11-16
申请号：US09729391
申请日：2000-12-04
申请人： Kenji Noma , Hitoshi Kanai
发明人： Kenji Noma , Hitoshi Kanai
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3967 , G11B2005/3996
摘要： 5 There is disclosed a magnetoresistive head in which an interlayer coupling field Hin applied to a free magnetic layer is minimized. The magnetoresistive head is provided with a magnetoresistive film including: a first antiferromagnetic layer 2; a pinned magnetic layer 3 formed on the first antiferromagnetic layer 2 and provided with magnetization whose direction is fixed; a first nonmagnetic layer 4 formed on the pinned magnetic layer 3; a free magnetic layer 5 formed on the first nonmagnetic layer 4 and provided with magnetization whose direction changes in accordance with an external magnetic field; a second nonmagnetic layer 6 formed on the free magnetic layer 5; and a second antiferromagnetic layer 7, formed on the second nonmagnetic layer 6, for applying a bias magnetic field generated by static interlayer coupling and directed in a direction opposite to magnetization direction of the pinned magnetic layer 3 to the free magnetic layer 5.
摘要翻译：公开了一种磁阻头，其中施加到自由磁性层的层间耦合场Hin最小化。磁阻磁头设置有磁阻膜，包括：第一反铁磁层2; 形成在第一反铁磁层2上并具有方向固定的磁化的钉扎磁性层3; 形成在钉扎磁性层3上的第一非磁性层4; 形成在第一非磁性层4上并具有根据外部磁场的方向变化的磁化的自由磁性层5; 形成在自由磁性层5上的第二非磁性层6; 以及形成在第二非磁性层6上的第二反铁磁性层7，用于施加由静态层间耦合产生的偏磁场，并且沿着与被钉扎的磁性层3的磁化方向相反的方向指向自由磁性层5。

39. 发明授权

US06243241B1 Spin valve magneto-resistance effect head and a magnetic storage apparatus using the same 失效
标题翻译：旋转阀磁阻效应头和使用其的磁存储装置
公开(公告)号：US06243241B1
公开(公告)日：2001-06-05
申请号：US09095414
申请日：1998-06-10
申请人： Hitoshi Kanai
发明人： Hitoshi Kanai
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/3903 , G11B5/59683 , G11B2005/0016 , G11B2005/3996
摘要： A spin valve magneto-resistance effect head includes a spin valve film, a pair of magnetic shield members, and a support member. Each of the pair of magnetic shield members is arranged opposite to each surface of the spin valve film. The support member is arranged between the spin valve film and the pair of magnetic shield members for setting the relative position therebetween (D1>D2) in order to form a predetermined gap having non-conductivity therebetween. The change of resistivity based on giant magneto-resistance effect for signal magnetic field applied from a storage medium is output from the spin valve film as voltage drop in response to sense current applied from an outside. The antiferromagnetic layer is provided in order to magnetize the pinned layer to a direction orthogonal to the direction of the sense current by forming magnetic field by an exchange coupling to the pinned layer.
摘要翻译：自旋阀磁阻效应头包括自旋阀膜，一对磁屏蔽构件和支撑构件。所述一对磁屏蔽构件中的每一个与所述自旋阀膜的每个表面相对布置。支撑构件布置在自旋阀膜和一对磁屏蔽构件之间，用于设定它们之间的相对位置（D1> D2），以形成其间具有不导电性的预定间隙。基于从存储介质施加的信号磁场的巨磁阻效应的电阻率的变化从自旋阀膜输出，作为响应于从外部施加的感测电流的电压降。提供反铁磁层，以通过通过与被钉扎层的交换耦合而形成磁场来将钉扎层磁化到与感测电流方向正交的方向。

40. 发明授权

US6046892A Magnetoresistive head with improved underlayer 失效
标题翻译：具有改进底层的磁阻头
公开(公告)号：US6046892A
公开(公告)日：2000-04-04
申请号：US40048
申请日：1998-03-17
申请人： Kenichi Aoshima , Hitoshi Kanai
发明人： Kenichi Aoshima , Hitoshi Kanai
IPC分类号： G11B5/39 , H01F10/08 , H01F10/30 , H01F10/32
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3906 , H01F10/3268 , G11B2005/3996 , G11B5/399 , H01F10/3295
摘要： A magnetoresistive head includes an underlayer composed of one of Ni and NiFe alloy and at least one additive selected from the group consisting of Cr, Nb, Rh, and Pd. An anti-ferromagnetic layer is formed on the underlayer, and a first ferromagnetic layer is formed on the anti-ferromagnetic layer. The magnetic head also includes a nonmagnetic layer formed on the first ferromagnetic layer, and a second ferromagnetic layer formed on the nonmagnetic layer.
摘要翻译：磁阻头包括由Ni和NiFe合金中的一种构成的底层和选自Cr，Nb，Rh和Pd的至少一种添加剂。在底层上形成反铁磁层，在反铁磁层上形成第一铁磁层。磁头还包括形成在第一铁磁层上的非磁性层和形成在非磁性层上的第二铁磁层。

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