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公开(公告)号：US20090321389A1
公开(公告)日：2009-12-31
申请号：US12491741
申请日：2009-06-25
Applicant: Nobuto Yasui , Shinji Sasaki , Kazuhito Miyata , Mineaki Kodama
Inventor： Nobuto Yasui , Shinji Sasaki , Kazuhito Miyata , Mineaki Kodama
IPC: B44C1/22
CPC classification number: G11B5/3163 , G11B5/102 , G11B5/3169 , G11B5/3173
Abstract: A magnetic head suitable for high-density recording is provided at a high yield by a method that suppresses a reduction in reproducing output signal due to ion-beam irradiation. After an air-bearing surface of a read element, a magnetic-head element, or a row bar is mechanically polished, the air-bearing surface is irradiated with an ion beam, such that an orthographic projection of an ion-beam incidence direction onto the air-bearing surface forms an in-plane incidence angle of 30 degrees to 150 degrees or of 210 degrees to 330 degrees with respect to a track-width direction. Thereby, the formation of a short circuit due to ion-beam irradiation may be hindered.
Abstract translation: 通过抑制由离子束照射引起的再现输出信号的降低的方法，以高产率提供了适合于高密度记录的磁头。 在读取元件的空气轴承表面，磁头元件或行杆机械抛光之后，用离子束照射空气轴承表面，使得离子束入射方向的正投影到 空气轴承表面相对于轨道宽度方向形成30度至150度或210度至330度的面内入射角。 由此，可能妨碍由于离子束照射而形成的短路。
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公开(公告)号：US20060134467A1
公开(公告)日：2006-06-22
申请号：US11354085
申请日：2006-02-15
Applicant: Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
Inventor： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
CPC classification number: G11B5/65 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/84
Abstract: Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.
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3.发明申请MAGNETIC RECORDING HEAD WITH LOW-WEAR PROTECTIVE FILM HAVING HYDROGEN AND/OR WATER VAPOR THEREIN 审中-公开具有低湿保护膜的磁性记录头，具有氢和/或水蒸气公开(公告)号：US20130070366A1
公开(公告)日：2013-03-21
申请号：US13239244
申请日：2011-09-21
Applicant: Mineaki Kodama , Kazuhito Miyata , Hiroshi Ishizaki , Atsuko Okawa
Inventor： Mineaki Kodama , Kazuhito Miyata , Hiroshi Ishizaki , Atsuko Okawa
CPC classification number: C23C14/0605 , C23C14/325 , G11B5/102 , G11B5/3106 , Y10T428/11
Abstract: According to one embodiment, a method for manufacturing a magnetic device includes forming a protective film above a structure, wherein at least one of hydrogen and water vapor are introduced into a formation chamber during formation of the protective film. In-another embodiment, a magnetic head includes at least one of: a read element, a write element, a heater element, and a resistance detector element above a substrate, conductive terminals for each of the at least one of: the read element, the write element, and the heater element, and a protective film above the at least one of: the read element, the write element, and the heater element, wherein the protective film comprises at least one of hydrogen and water vapor.
Abstract translation: 根据一个实施例，一种用于制造磁性装置的方法包括在结构之上形成保护膜，其中在形成保护膜期间，将氢和水蒸汽中的至少一种引入到形成室中。 在另一个实施例中，磁头包括以下中的至少一个：读取元件，写入元件，加热器元件和基板上方的电阻检测器元件中的至少一个，用于读取元件中的至少一个的导电端子， 写入元件和加热器元件，以及保护膜，其包括以下至少一个：读取元件，写入元件和加热器元件，其中保护膜包括氢和水蒸气中的至少一种。
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公开(公告)号：US20110032638A1
公开(公告)日：2011-02-10
申请号：US12907943
申请日：2010-10-19
Applicant: Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
Inventor： Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
Abstract: Embodiments of the invention provide a perpendicular magnetic recording medium improved for fly ability, high in read signal quality, and capable of suppressing magnetic decay of recorded magnetization to be caused by stray fields. In one embodiment, a perpendicular recording layer is formed over a substrate with a soft magnetic underlayer therebetween, then an amorphous or nano-crystalline layer is formed between the substrate and the soft magnetic underlayer. The soft magnetic underlayer includes first and second amorphous soft magnetic layers, as well as a nonmagnetic layer formed between those first and second amorphous soft magnetic layers. The first and second amorphous soft magnetic layers are given uniaxial anisotropy in the radial direction of the substrate respectively and coupled with each other antiferromagnetically.
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5.发明申请AIR BEARING SURFACE OVERCOAT WITH SOFT INTERMEDIATE FILM, AND METHODS OF PRODUCING THE SAME 有权具有软中间膜的空气轴承表面过滤器及其生产方法公开(公告)号：US20130033779A1
公开(公告)日：2013-02-07
申请号：US13196067
申请日：2011-08-02
Applicant: Mineaki Kodama , Hiroshi Ishizaki , Atsuko Okawa , Hiroshi Inaba
Inventor： Mineaki Kodama , Hiroshi Ishizaki , Atsuko Okawa , Hiroshi Inaba
CPC classification number: G11B5/3106 , G11B5/1278 , G11B5/3163 , Y10T428/1164
Abstract: In one embodiment, a magnetic head includes at least one magnetic head element for reading from and/or writing to a magnetic medium, the element having an air bearing surface (ABS) facing toward a magnetic medium, an adhesive film including silicon nitride above the ABS having a characteristic of being formed under a water vapor partial pressure, and a protective film above the adhesive film, the protective film including carbon. Also, in another embodiment, a method includes forming an ABS of a magnetic head, the ABS being a surface of the magnetic head which is closest to a magnetic medium when in use, forming an adhesive film above the ABS of the magnetic head, the adhesive film being formed under a water vapor partial pressure, and forming a protective film above the adhesive film, the protective film including carbon.
Abstract translation: 在一个实施例中，磁头包括用于从磁介质读取和/或写入磁介质的至少一个磁头元件，所述元件具有面向磁介质的空气轴承表面（ABS），包括位于 具有在水蒸气分压下形成的特征的ABS和在粘合膜上方的保护膜，保护膜包括碳。 此外，在另一实施例中，一种方法包括形成磁头的ABS，ABS是在使用时最靠近磁介质的磁头的表面，在磁头的ABS的上方形成粘合剂膜， 粘合剂膜在水蒸气分压下形成，并且在粘合剂膜上方形成保护膜，保护膜包括碳。
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Patent Agency Ranking
公开(公告)号：US08354034B2
公开(公告)日：2013-01-15
申请号：US12491741
申请日：2009-06-25
Applicant: Nobuto Yasui , Shinji Sasaki , Kazuhito Miyata , Mineaki Kodama
Inventor： Nobuto Yasui , Shinji Sasaki , Kazuhito Miyata , Mineaki Kodama
IPC: B44C1/22
CPC classification number: G11B5/3163 , G11B5/102 , G11B5/3169 , G11B5/3173
Abstract: A magnetic head suitable for high-density recording is provided at a high yield by a method that suppresses a reduction in reproducing output signal due to ion-beam irradiation. After an air-bearing surface of a read element, a magnetic-head element, or a row bar is mechanically polished, the air-bearing surface is irradiated with an ion beam, such that an orthographic projection of an ion-beam incidence direction onto the air-bearing surface forms an in-plane incidence angle of 30 degrees to 150 degrees or of 210 degrees to 330 degrees with respect to a track-width direction. Thereby, the formation of a short circuit due to ion-beam irradiation may be hindered.
Abstract translation: 通过抑制由离子束照射引起的再现输出信号的降低的方法，以高产率提供了适合于高密度记录的磁头。 在读取元件的空气轴承表面，磁头元件或行杆机械抛光之后，用离子束照射空气轴承表面，使得离子束入射方向的正投影到 空气轴承表面相对于轨道宽度方向形成30度至150度或210度至330度的面内入射角。 由此，可能妨碍由于离子束照射而形成的短路。
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7.发明申请公开(公告)号：US20110151144A1
公开(公告)日：2011-06-23
申请号：US12969351
申请日：2010-12-15
Applicant: Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
Inventor： Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
Abstract: Embodiments of the invention provide a perpendicular magnetic recording medium improved for fly ability, high in read signal quality, and capable of suppressing magnetic decay of recorded magnetization to be caused by stray fields. In one embodiment, a perpendicular recording layer is formed over a substrate with a soft magnetic underlayer therebetween, then an amorphous or nano-crystalline layer is formed between the substrate and the soft magnetic underlayer. The soft magnetic underlayer includes first and second amorphous soft magnetic layers, as well as a nonmagnetic layer formed between those first and second amorphous soft magnetic layers. The first and second amorphous soft magnetic layers are given uniaxial anisotropy in the radial direction of the substrate respectively and coupled with each other antiferromagnetically.
Abstract translation: 本发明的实施例提供了一种改进的飞行能力，高读取信号质量并且能够抑制由杂散场引起的记录磁化的磁衰减的垂直磁记录介质。 在一个实施例中，垂直记录层在其上具有软磁性底层的衬底上形成，然后在衬底和软磁性底层之间形成无定形或纳米晶层。 软磁性底层包括第一和第二非晶软磁性层，以及在这些第一和第二非晶软磁性层之间形成的非磁性层。 第一和第二非晶软磁性层分别在基板的径向方向上具有单轴各向异性，并且彼此反铁磁耦合。
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公开(公告)号：US07625646B2
公开(公告)日：2009-12-01
申请号：US11354085
申请日：2006-02-15
Applicant: Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
Inventor： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
IPC: G11B5/66
CPC classification number: G11B5/65 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/84
Abstract: Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.
Abstract translation: 公开了一种具有较低介质噪声，不易受热波动和高记录分辨率的垂直磁记录介质及其制造方法。 作为通过多个底层在非磁性基板上形成记录层时形成金属层的步骤，重复平均厚度为0.2nm以下的氧化物层的工序，晶粒 磁性隔离，而不会干扰垂直磁记录介质的记录层的晶粒的取向，或不降低记录层的晶粒的磁特性。
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公开(公告)号：US07033686B2
公开(公告)日：2006-04-25
申请号：US10701603
申请日：2003-11-06
Applicant: Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
Inventor： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
CPC classification number: G11B5/65 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/84
Abstract: Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.
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10.发明申请公开(公告)号：US20050244679A1
公开(公告)日：2005-11-03
申请号：US11107588
申请日：2005-04-15
Applicant: Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
Inventor： Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
IPC: G11B5/667 , G11B5/127 , G11B5/66 , G11B5/73 , G11B5/738 , G11B5/84 , G11B5/851 , G11B5/852 , H01F10/13 , H01F10/16 , H01F10/32 , H01F41/18
Abstract: Embodiments of the invention provide a perpendicular magnetic recording medium improved for fly ability, high in read signal quality, and capable of suppressing magnetic decay of recorded magnetization to be caused by stray fields. In one embodiment, a perpendicular recording layer is formed over a substrate with a soft magnetic underlayer therebetween, then an amorphous or nano-crystalline layer is formed between the substrate and the soft magnetic underlayer. The soft magnetic underlayer includes first and second amorphous soft magnetic layers, as well as a nomnagnetic layer formed between those first and second amorphous soft magnetic layers. The first and second amorphous soft magnetic layers are given uniaxial anisotropy in the radial direction of the substrate respectively and coupled with each other antiferromagnetically.
Abstract translation: 本发明的实施例提供了一种改进的飞行能力，高读取信号质量并且能够抑制由杂散场引起的记录磁化的磁衰减的垂直磁记录介质。 在一个实施例中，垂直记录层在其上具有软磁性底层的衬底上形成，然后在衬底和软磁性底层之间形成无定形或纳米晶层。 软磁性底层包括第一和第二非晶软磁性层，以及在第一和第二非晶软磁性层之间形成的正磁性层。 第一和第二非晶软磁性层分别在基板的径向方向上具有单轴各向异性，并且彼此反铁磁耦合。
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