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71. 发明授权

US06780530B2 Magnetic material having a high saturation magnetic flux density and a low coercive force 有权
标题翻译：具有高饱和磁通密度和低矫顽力的磁性材料
公开(公告)号：US06780530B2
公开(公告)日：2004-08-24
申请号：US10428836
申请日：2003-05-05
申请人： Mikiko Saito , Nobuyuki Ishiwata , Tsutomu Ishi , Hiroaki Honjo , Tamaki Toba , Shinsaku Saito , Yoshihiro Nonaka
发明人： Mikiko Saito , Nobuyuki Ishiwata , Tsutomu Ishi , Hiroaki Honjo , Tamaki Toba , Shinsaku Saito , Yoshihiro Nonaka
IPC分类号： B32B900
CPC分类号： B82Y25/00 , C22C30/00 , G11B5/3109 , G11B5/3967 , H01F10/007 , H01F10/16 , Y10S428/90 , Y10T428/1121 , Y10T428/115
摘要： A magnetic material includes a main component expressed by a general formula CoNiFeX, wherein X is at least one element selected from the group consisting of Cr, Ti, V, Ru, Rh, Pd, Os, Ir and Pt, and wherein weight percentages a, b, c and d of Co, Ni, Fe and X contents, respectively, in the main component are such that 40%≦a≦10%, 5%≦b≦20%, 10%≦c≦30%, and 0%
摘要翻译：磁性材料包括由通式CoNiFeX表示的主要成分，其中X是选自Cr，Ti，V，Ru，Rh，Pd，Os，Ir和Pt中的至少一种元素，其中重量百分数a 主成分中Co，Ni，Fe，X含量的b，c，d分别为40％<= a <= 10％，5％<= b <= 20％，10％<= c <= 30％，0％

72. 发明申请

US20050219772A1 Magnetoresistive effect transducer having longitudinal bias layer directly connected to free layer 有权
公开(公告)号：US20050219772A1
公开(公告)日：2005-10-06
申请号：US11139680
申请日：2005-05-31
申请人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Tsutomu Ishi , Hiroaki Honjou , Kunihiko Ishihara , Jun-Ichi Fujikata , Hisao Matsutera , Hisanao Tsuge , Atsushi Kamijo
发明人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Tsutomu Ishi , Hiroaki Honjou , Kunihiko Ishihara , Jun-Ichi Fujikata , Hisao Matsutera , Hisanao Tsuge , Atsushi Kamijo
IPC分类号： G01R33/09 , G11B5/00 , G11B5/127 , G11B5/33 , G11B5/39
CPC分类号： G01R33/093 , B82Y10/00 , B82Y25/00 , G11B5/00 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967
摘要： In a magnetoresistive effect transducer including a pinning layer, a pinned layer, a free layer and a non-magnetic layer inserted between the pinned layer and the free layer, a longitudinal bias layer is connected directly to a part of the free layer to apply a bias magnetic field to the free layer, thus biasing a magnetization direction of the free layer so that the magnetization direction of the free layer coincides with that of the longitudinal bias layer.

73. 发明授权

US06687082B1 Magnetic head and manufacturing method thereof and magnetic recording and reproducing apparatus 有权
标题翻译：磁头及其制造方法以及磁记录和再现装置
公开(公告)号：US06687082B1
公开(公告)日：2004-02-03
申请号：US09676788
申请日：2000-10-02
申请人： Nobuyuki Ishiwata , Tsutomu Ishi , Mikiko Saito , Hiroaki Honjo , Shinsaku Saito , Tamaki Toba , Yoshihiro Nonaka
发明人： Nobuyuki Ishiwata , Tsutomu Ishi , Mikiko Saito , Hiroaki Honjo , Shinsaku Saito , Tamaki Toba , Yoshihiro Nonaka
IPC分类号： G11B5147
CPC分类号： G11B5/3153 , G11B5/3163 , Y10T29/49044
摘要： A magnetic head and a manufacturing method of the magnetic head and a magnetic recording and reproducing apparatus used this head, in which the following problem is solved, are provided. A plated film realizing large saturation magnetization Bs about 2T can not realize a high resistivity at the same time, therefore, when this plated film is applied to a magnetic head, the high frequency characteristic is deteriorated. This problem is solved at the present invention. Further, the present invention provides a magnetic head that is low cost and has large saturation magnetization Bs, and has a excellent high frequency characteristic suitable for a high density recording. A magnetic head, in which a coil insulated by insulation layers is disposed between a first magnetic core for recording and a second magnetic core for recording that is disposed to face the first magnetic core for recording via a recording gap, and which executes recording by that a magnetic flux of the first and second magnetic cores for recording excited by the coil is generated from the recording gap, is provided. And at least one of the first and second magnetic cores for recording is composed of a first plated magnetic layer and a second plated magnetic layer in a state that the first plated magnetic layer is disposed at the near side of the recording gap, and saturation magnetization of the first plated magnetic layer is 1.7 T (tesla) or more. And when resistivity of the first plated magnetic layer is defined as &rgr;1 and the thickness of the first plated magnetic layer is defined as &dgr;1, and resistivity of the second plated magnetic layer is defined as &rgr;2, and the thickness of the second plated magnetic layer is defined as &dgr;2, &rgr;1
摘要翻译：提供了磁头和磁头的制造方法以及使用该磁头的磁记录和再现装置，其中解决了以下问题。实现大约2T的饱和磁化强度Bs的电镀膜不能同时实现高电阻率，因此当将该镀膜施加到磁头时，高频特性劣化。在本发明中解决了这个问题。此外，本发明提供一种低成本，饱和磁化强度高的磁头，并且具有优良的高密度记录特性。一种磁头，其中通过绝缘层绝缘的线圈被设置在用于记录的第一磁芯和用于记录的第二磁芯之间，用于记录的第二磁芯经由记录间隙设置成面对第一磁芯进行记录，并且执行记录提供了从记录间隙产生由线圈激发的记录的第一和第二磁芯的磁通量。并且，第一和第二记录用磁芯中的至少一个由第一镀层磁性层和第二镀覆磁性层构成，第一镀层磁性层设置在记录间隙的近侧，饱和磁化强度的第一镀层磁性层为1.7T（特斯拉）或更高。并且，将第一镀层磁性层的电阻率定义为rho1，将第一镀覆磁性层的厚度定义为δ1，将第二镀覆磁性层的电阻率定义为rho2，将第二镀覆磁性层的厚度设为定义为δ2，rho1

74. 发明授权

US07023659B2 Magnetic head having an antistripping layer for preventing a magnetic layer from stripping 有权
公开(公告)号：US07023659B2
公开(公告)日：2006-04-04
申请号：US10815069
申请日：2004-03-31
申请人： Hiroaki Honjo , Tsutomu Ishi , Mikiko Saito , Shinsaku Saito , Tamaki Toba , Yoshihiro Nonaka , Kazuhiko Hayashi , Nobuyuki Ishiwata
发明人： Hiroaki Honjo , Tsutomu Ishi , Mikiko Saito , Shinsaku Saito , Tamaki Toba , Yoshihiro Nonaka , Kazuhiko Hayashi , Nobuyuki Ishiwata
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/3103 , G11B5/3109 , G11B5/3116 , G11B5/3133 , G11B5/314 , G11B5/3143 , G11B5/3163 , G11B5/3967 , G11B5/40 , G11B2005/3996 , Y10T29/49044
摘要： By inserting a first antistripping layer comprising a first non-magnetic layer 22 and a first conductive layer 23 between a first magnetic layer 16 and a magnetic separation layer 13, adhesion between the first conductive layer 23 and the magnetic separation layer 13 is improved to prevent the first magnetic layer 16 from stripping. In addition, by inserting a second antistripping layer comprising a second non-magnetic layer 24 and a second conductive layer 25 between a second magnetic layer 21 and a magnetic gap layer 17, adhesion between the second conductive layer 24 and the magnetic gap layer 17 is improved to prevent the second magnetic layer 25 from stripping.

75. 发明授权

US06392851B1 Magnetoresistance effect type complex head and method for manufacturing the same 失效
标题翻译：磁阻效应型复合头及其制造方法
公开(公告)号：US06392851B1
公开(公告)日：2002-05-21
申请号：US09400543
申请日：1999-09-21
申请人： Nobuyuki Ishiwata , Tsutomu Ishi
发明人： Nobuyuki Ishiwata , Tsutomu Ishi
IPC分类号： G11B5187
CPC分类号： G11B5/3903 , G11B5/3116 , G11B5/3163 , G11B5/3967
摘要： Disclosed is a magnetroresistance effect type complex head including: (1) a magnetroresistance effect head including: a magnetroresistance effect element 15 which includes a central region 12 for detecting a magnetic field from a record medium and a pair of terminal portions 13, 14 for supplying a bias magnetic field and a current to the central region; a pair of magnetic separators 11, 16 confronting each other, sandwiching the magnetroresistance effect element, and each including an insulator; and a first and second magnetic shield films 10, 17 confronting each other, and sandwitching the magnetroresistance effect element and the pair of magnetic separators; (2) an inductive head including: a first magnetic pole film 17 which is also used as the second magnetic shield; a magnetic gap 18 piled up on the first magnetic pole; a second magnetic pole film 19 piled up on the magnetic gap; and a coil pattern for generating a magnetic flux which flows through the first and second magnetic pole films; (3) a pair of pits 20 recessed in a direction perpendicular to an air bearing surface and disposed on both lateral sides of the second magnetic pole film to determine a width of the second magnetic pole film; and (4) a pattern 8 for determining a position of the pair of recesses.
摘要翻译：公开了一种磁阻效应型复合磁头，其包括：（1）磁阻效应磁头，包括：磁阻效应元件15，其包括用于检测来自记录介质的磁场的中心区域12和用于供给的一对端子部分13,14 偏置磁场和到中心区域的电流; 相互面对的一对磁性分离器11,16，夹持磁阻效应元件，并且各自包括绝缘体; 以及彼此面对的第一和第二磁屏蔽膜10,17，以及对磁阻效应元件和一对磁选机进行开锁; （2）感应头，包括：还用作第二磁屏蔽的第一磁极膜17; 堆积在第一磁极上的磁隙18; 堆叠在磁隙上的第二磁极膜19; 以及用于产生流过第一和第二磁极膜的磁通的线圈图案; （3）在与空气轴承面垂直的方向上凹陷的一对凹坑20，设置在第二磁极膜的两侧，确定第二磁极膜的宽度; 和（4）用于确定该对凹部的位置的图案8。

76. 发明授权

US07372673B2 Magnetoresistive effect transducer having longitudinal bias layer and control layer directly connected to free layer 有权
标题翻译：具有纵向偏置层和控制层的磁阻效应传感器直接连接到自由层
公开(公告)号：US07372673B2
公开(公告)日：2008-05-13
申请号：US11139680
申请日：2005-05-31
申请人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Tsutomu Ishi , Hiroaki Honjou , Kunihiko Ishihara , Jun-Ichi Fujikata , Hisao Matsutera , Hisanao Tsuge , Atsushi Kamijo
发明人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Tsutomu Ishi , Hiroaki Honjou , Kunihiko Ishihara , Jun-Ichi Fujikata , Hisao Matsutera , Hisanao Tsuge , Atsushi Kamijo
IPC分类号： G11B5/39
CPC分类号： G01R33/093 , B82Y10/00 , B82Y25/00 , G11B5/00 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967
摘要： In a magnetoresistive effect transducer including a pinning layer, a pinned layer, a free layer and a non-magnetic layer inserted between the pinned layer and the free layer, a longitudinal bias layer is connected directly to a part of the free layer to apply a bias magnetic field to the free layer, thus biasing a magnetization direction of the free layer so that the magnetization direction of the free layer coincides with that of the longitudinal bias layer.
摘要翻译：在包括插入层和自由层之间的钉扎层，钉扎层，自由层和非磁性层的磁阻效应传感器中，纵向偏置层直接连接到自由层的一部分以施加偏置磁场到自由层，从而偏置自由层的磁化方向，使得自由层的磁化方向与纵向偏置层的磁化方向一致。

77. 发明授权

US06950290B2 Magnetoresistive effect transducer having longitudinal bias layer directly connected to free layer 失效
标题翻译：磁阻效应传感器具有直接连接到自由层的纵向偏置层
公开(公告)号：US06950290B2
公开(公告)日：2005-09-27
申请号：US10241520
申请日：2002-09-12
申请人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Tsutomu Ishi , Hiroaki Honjou , Kunihiko Ishihara , Jun-Ichi Fujikata , Hisao Matsutera , Hisanao Tsuge , Atsushi Kamijo
发明人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Tsutomu Ishi , Hiroaki Honjou , Kunihiko Ishihara , Jun-Ichi Fujikata , Hisao Matsutera , Hisanao Tsuge , Atsushi Kamijo
IPC分类号： G01R33/09 , G11B5/00 , G11B5/127 , G11B5/33 , G11B5/39
CPC分类号： G01R33/093 , B82Y10/00 , B82Y25/00 , G11B5/00 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967
摘要： In a magnetoresistive effect transducer including a pinning layer, a pinned layer, a free layer and a non-magnetic layer inserted between the pinned layer and the free layer, a longitudinal bias layer is connected directly to a part of the free layer to apply a bias magnetic field to the free layer, thus biasing a magnetization direction of the free layer so that the magnetization direction of the free layer coincides with that of the longitudinal bias layer.
摘要翻译：在包括插入层和自由层之间的钉扎层，钉扎层，自由层和非磁性层的磁阻效应传感器中，纵向偏置层直接连接到自由层的一部分以施加偏置磁场到自由层，从而偏置自由层的磁化方向，使得自由层的磁化方向与纵向偏置层的磁化方向一致。

78. 发明申请

US20050185339A1 Recording head, recording head manufacturing method, combined head and magnetic recording/reproduction apparatus 有权
标题翻译：记录头，记录头制造方法，组合头磁记录/再现装置
公开(公告)号：US20050185339A1
公开(公告)日：2005-08-25
申请号：US10911578
申请日：2004-08-05
申请人： Nobuyuki Ishiwata , Hiroaki Honjo , Tamaki Toba , Shinsaku Saito , Yoshihiro Nonaka , Tsutomu Ishi , Mikiko Saito , Keishi Ohashi
发明人： Nobuyuki Ishiwata , Hiroaki Honjo , Tamaki Toba , Shinsaku Saito , Yoshihiro Nonaka , Tsutomu Ishi , Mikiko Saito , Keishi Ohashi
IPC分类号： G11B5/127 , G11B5/31 , G11B5/147
CPC分类号： G11B5/3109 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/3163
摘要： A recording head is a magnetic head in which ends on one side of opposed first and second magnetic cores form a recording gap, said other ends form a magnetic joint, coils insulated by an insulating material are provided between said first and second magnetic cores, magnetic fluxes of said first and second magnetic cores excited by said coils leak from said recording gap so that recording onto a recording medium is carried out. In said recording head, a distance from said end of said recording gap close to said magnetic medium to a contact point of said magnetic joint (hereinafter, yoke length) is not more than 20 μm. A magnetic recording/reproduction apparatus has this head.
摘要翻译：记录头是磁头，其中在相对的第一和第二磁芯的一侧上的端部形成记录间隙，所述另一端形成磁性接头，在所述第一和第二磁芯之间设置由绝缘材料绝缘的线圈，磁性由所述线圈激励的所述第一和第二磁芯的磁通从所述记录间隙泄漏，从而进行到记录介质上的记录。在所述记录头中，从所述记录间隙的接近所述磁介质的端部到所述磁性接头的接触点（以下称为磁轭长度）的距离不大于20微米。磁记录/再现装置具有该磁头。

79. 发明授权

US06791794B2 Magnetic head having an antistripping layer for preventing a magnetic layer from stripping 有权
标题翻译：具有用于防止磁性层剥离的抗转移层的磁头
公开(公告)号：US06791794B2
公开(公告)日：2004-09-14
申请号：US10113608
申请日：2002-04-01
申请人： Hiroaki Honjo , Tsutomu Ishi , Mikiko Saito , Shinsaku Saito , Tamaki Toba , Yoshihino Nonaka , Kazuhiko Hayashi , Nobuyuki Ishiwata
发明人： Hiroaki Honjo , Tsutomu Ishi , Mikiko Saito , Shinsaku Saito , Tamaki Toba , Yoshihino Nonaka , Kazuhiko Hayashi , Nobuyuki Ishiwata
IPC分类号： G11B5147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/3103 , G11B5/3109 , G11B5/3116 , G11B5/3133 , G11B5/314 , G11B5/3143 , G11B5/3163 , G11B5/3967 , G11B5/40 , G11B2005/3996 , Y10T29/49044
摘要： By inserting a first antistripping layer comprising a first non-magnetic layer 22 and a first conductive layer 23 between a first magnetic layer 16 and a magnetic separation layer 13, adhesion between the first conductive layer 23 and the magnetic separation layer 13 is improved to prevent the first magnetic layer 16 from stripping. In addition, by inserting a second antistripping layer comprising a second non-magnetic layer 24 and a second conductive layer 25 between a second magnetic layer 21 and a magnetic gap layer 17, adhesion between the second conductive layer 24 and the magnetic gap layer 17 is improved to prevent the second magnetic layer 25 from stripping.
摘要翻译：通过在第一磁性层16和磁分离层13之间插入包括第一非磁性层22和第一导电层23的第一抗锯齿层，改善了第一导电层23和磁性分离层13之间的粘附，以防止来自剥离的第一磁性层16。此外，通过在第二磁性层21和磁隙层17之间插入包括第二非磁性层24和第二导电层25的第二抗锯齿层，第二导电层24和磁隙层17之间的粘附是改进以防止第二磁性层25剥离。

80. 发明授权

US06592811B1 Magnetic material having a high saturation magnetic flux density and a low coercive force 有权
标题翻译：具有高饱和磁通密度和低矫顽力的磁性材料
公开(公告)号：US06592811B1
公开(公告)日：2003-07-15
申请号：US09680256
申请日：2000-10-05
申请人： Mikiko Saito , Nobuyuki Ishiwata , Tsutomu Ishi , Hiroaki Honjo , Tamaki Toba , Shinsaku Saito , Yoshihiro Nonaka
发明人： Mikiko Saito , Nobuyuki Ishiwata , Tsutomu Ishi , Hiroaki Honjo , Tamaki Toba , Shinsaku Saito , Yoshihiro Nonaka
IPC分类号： C22C1907
CPC分类号： B82Y25/00 , C22C30/00 , G11B5/3109 , G11B5/3967 , H01F10/007 , H01F10/16 , Y10S428/90 , Y10T428/1121 , Y10T428/115
摘要： A magnetic material includes a main component expressed by a general formula CoNiFeX, wherein X is at least one element selected from the group consisting of Cr, TI, V, Ru, Rh, Os, Ir and Pt, and wherein weight percentages a, b, c and d of Co, Ni, Fe and X contents, respectively, in the main component are such that 40%≦a≦75%, 5%≦b≦20%, 10%≦c≦30%, and 0%≦d≦10%.
摘要翻译：磁性材料包括由通式CoNiFeX表示的主要成分，其中X是选自Cr，TI，V，Ru，Rh，Os，Ir和Pt中的至少一种元素，其中重量百分比a，b 主要成分中的Co，Ni，Fe和X含量的c，d分别为40％<= a <= 75％，5％<= b <= 20％，10％<= c < 30％，0％<= d <= 10％。

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