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1.发明授权Magnetic recording medium utilizing a recording layer having more and less concentrated parts of a nonmagnetic element in an in-plane direction and a nonmagnetic layer 有权利用记录层的磁记录介质，其具有在面内方向上具有越来越少的非磁性元件的集中部分和非磁性层公开(公告)号：US08257845B2
公开(公告)日：2012-09-04
申请号：US12378120
申请日：2009-02-10
申请人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
发明人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
IPC分类号： G11B5/66
摘要： Embodiments of the present invention help to produce discrete track media and bit patterned media having both excellent recording and reproducing performance and reliability. According to one embodiment, a manufacturing method forms a nonmagnetic layer mainly composed of the same element as a nonmagnetic element contained in magnetic recording layers and on the magnetic recording layers and a mask layer having apertures for forming more concentrated parts of the nonmagnetic element in the magnetic recording layers on the nonmagnetic layer. The method implants ions of the nonmagnetic element through the nonmagnetic layer masked by the mask layer to form the more concentrated parts of the nonmagnetic element in the magnetic recording layer.
摘要翻译： 本发明的实施例有助于产生具有优异的记录和再现性能和可靠性的离散轨道介质和位图案化介质。 根据一个实施例，制造方法形成主要由与磁记录层中包含的非磁性元件相同的元件和磁记录层的非磁性层和具有用于形成非磁性元件的更集中部分的孔的掩模层 非磁性层上的磁记录层。 该方法通过由掩模层掩蔽的非磁性层注入非磁性元件的离子，以形成磁记录层中的非磁性元件的更集中的部分。
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公开(公告)号：US20090214898A1
公开(公告)日：2009-08-27
申请号：US12378120
申请日：2009-02-10
申请人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
发明人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
摘要： Embodiments of the present invention help to produce discrete track media and bit patterned media having both excellent recording and reproducing performance and reliability. According to one embodiment, a manufacturing method forms a nonmagnetic layer mainly composed of the same element as a nonmagnetic element contained in magnetic recording layers and on the magnetic recording layers and a mask layer having apertures for forming more concentrated parts of the nonmagnetic element in the magnetic recording layers on the nonmagnetic layer. The method implants ions of the nonmagnetic element through the nonmagnetic layer masked by the mask layer to form the more concentrated parts of the nonmagnetic element in the magnetic recording layer.
摘要翻译： 本发明的实施例有助于产生具有优异的记录和再现性能和可靠性的离散轨道介质和位图案化介质。 根据一个实施例，制造方法形成主要由与磁记录层中包含的非磁性元件相同的元件和磁记录层的非磁性层和具有用于形成非磁性元件的更集中部分的孔的掩模层 非磁性层上的磁记录层。 该方法通过由掩模层掩蔽的非磁性层注入非磁性元件的离子，以形成磁记录层中的非磁性元件的更集中的部分。
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公开(公告)号：US20090214895A1
公开(公告)日：2009-08-27
申请号：US12378777
申请日：2009-02-18
申请人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
发明人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
CPC分类号： G11B5/855 , C23C14/3414 , C23C30/00 , G11B5/66 , H01F41/34
摘要： Embodiments of the present invention produce discrete track media and bit patterned media having both excellent read/write performance and reliability. According to one embodiment, the medium comprises a magnetic layers formed by at least two ferromagnetic alloy layers with different compositions on a substrate. The ferromagnetic alloy layer located closest to the medium surface has more concentrated parts and less concentrated parts of nonmagnetic element in the in-plane direction. The more concentrated parts of the nonmagnetic element contain more nonmagnetic elements than the other parts except for an intermediate layer in the magnetic recording layer. The more concentrated parts and the less concentrated parts of the nonmagnetic element in the ferromagnetic alloy layer located closest to the medium surface are formed substantially concentric. The more concentrated parts of the nonmagnetic element is formed by being doped with ions of nonmagnetic element.
摘要翻译： 本发明的实施例产生具有优异的读/写性能和可靠性的离散轨道介质和位图案化介质。 根据一个实施例，介质包括由衬底上具有不同组成的至少两个铁磁性合金层形成的磁性层。 位于最靠近介质表面的铁磁合金层在面内方向具有更多的集中部分和更少的非磁性元件的集中部分。 除了磁记录层中的中间层之外，非磁性元件的集中部分比其他部分含有更多的非磁性元件。 位于最靠近介质表面的铁磁性合金层中的非磁性元件的集中部分和较不集中的部分基本上是同心的。 通过掺杂非磁性元素的离子形成非磁性元件越集中的部分。
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4.发明授权Magnetic recording medium utilizing a recording layer having more and less concentrated parts of a nonmagnetic element in an in-plane direction and manufacturing method thereof 有权利用在面内方向上具有越来越少的非磁性元件集中部分的记录层的磁记录介质及其制造方法公开(公告)号：US08383253B2
公开(公告)日：2013-02-26
申请号：US12378777
申请日：2009-02-18
申请人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
发明人： Tatsuya Hinoue , Hiroshi Kanai , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba
IPC分类号： G11B5/65
CPC分类号： G11B5/855 , C23C14/3414 , C23C30/00 , G11B5/66 , H01F41/34
摘要： Embodiments of the present invention produce discrete track media and bit patterned media having both excellent read/write performance and reliability. According to one embodiment, the medium comprises a magnetic layers formed by at least two ferromagnetic alloy layers with different compositions on a substrate. The ferromagnetic alloy layer located closest to the medium surface has more concentrated parts and less concentrated parts of nonmagnetic element in the in-plane direction. The more concentrated parts of the nonmagnetic element contain more nonmagnetic elements than the other parts except for an intermediate layer in the magnetic recording layer. The more concentrated parts and the less concentrated parts of the nonmagnetic element in the ferromagnetic alloy layer located closest to the medium surface are formed substantially concentric. The more concentrated parts of the nonmagnetic element is formed by being doped with ions of nonmagnetic element.
摘要翻译： 本发明的实施例产生具有优异的读/写性能和可靠性的离散轨道介质和位图案化介质。 根据一个实施例，介质包括由衬底上具有不同组成的至少两个铁磁性合金层形成的磁性层。 位于最靠近介质表面的铁磁合金层在面内方向具有更多的集中部分和更少的非磁性元件的集中部分。 除了磁记录层中的中间层之外，非磁性元件的集中部分比其他部分含有更多的非磁性元件。 位于最靠近介质表面的铁磁性合金层中的非磁性元件的集中部分和较不集中的部分基本上是同心的。 通过掺杂非磁性元素的离子形成非磁性元件越集中的部分。
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5.发明申请Magnetic Recording Media Having Recording Regions and Separation Regions That Have Different Lattice Constants and Manufacturing Methods Thereof 审中-公开具有记录区域和具有不同晶格常数的分离区域的磁记录介质及其制造方法公开(公告)号：US20100302682A1
公开(公告)日：2010-12-02
申请号：US12777982
申请日：2010-05-11
申请人： Tatsuya Hinoue , Hiroshi Yakushiji , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba , Masae Suzuki
发明人： Tatsuya Hinoue , Hiroshi Yakushiji , Toshinori Ono , Hiroyuki Suzuki , Hiroshi Inaba , Masae Suzuki
IPC分类号： G11B5/82
摘要： According to one embodiment, a magnetic recording medium includes a magnetic recording layer formed above a substrate, the magnetic recording layer being comprised of an alloy having a crystal structure, recording tracks formed on the magnetic recording layer in nearly concentric circular shapes, wherein the recording tracks are comprised of a first alloy composition having a crystal structure, and track separation regions formed between the recording tracks on the magnetic recording layer, wherein the track separation regions are comprised of a second alloy composition having a crystal structure, the second alloy composition comprising the first alloy composition and a non-magnetic element, wherein a lattice constant of the second alloy composition is greater than a lattice constant of the first alloy composition. In other embodiments, methods of manufacturing magnetic recording media and systems using magnetic recording media are described.
摘要翻译： 根据一个实施例，磁记录介质包括形成在基板上方的磁记录层，该磁记录层由具有晶体结构的合金组成，在磁记录层上形成为几乎同心圆形的记录道，其中记录 轨道由具有晶体结构的第一合金组合物和在磁记录层上的记录轨道之间形成的轨道分离区域组成，其中轨道分离区域由具有晶体结构的第二合金组合物构成，第二合金组合物包含 所述第一合金组合物和非磁性元素，其中所述第二合金组合物的晶格常数大于所述第一合金组合物的晶格常数。 在其它实施例中，描述了制造使用磁记录介质的磁记录介质和系统的方法。
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公开(公告)号：US20090213497A1
公开(公告)日：2009-08-27
申请号：US12378894
申请日：2009-02-20
摘要： Embodiments of the present invention provide recording area separated magnetic recording media (DTMs, BPMs) allowing magnetic heads to fly lower. According to one embodiment, the recording area separated magnetic recording media are configured so that magnetic recording layers have parts with the relatively higher element ratio of a ferromagnetic material, and parts with the lower element ratio of the ferromagnetic material, occurring periodically in the in-plane direction, and the average height from the substrate surface of the parts with the relatively higher element ratio of a ferromagnetic material is higher than the average height from the substrate surface of the parts with the lower element ratio of the ferromagnetic material. In producing recording area separated magnetic recording media with the element ratio of a ferromagnetic material relatively lowered by ion implantation, preliminarily etching the part to be ion implanted makes the height after ion implantation relatively lower than the non-implanted part.
摘要翻译： 本发明的实施例提供了允许磁头较低飞行的记录区分离的磁记录介质（DTM，BPM）。 根据一个实施例，记录区域分离的磁记录介质被配置为使得磁记录层具有铁磁材料的相对较高的元件比的部件，并且具有铁磁材料的较低元件比的部件在内部周期性地出现， 并且与铁磁材料相对较高的元件比的部件的基板表面的平均高度高于具有铁素体的较低元素比的部件的基板表面的平均高度。 在通过离子注入相对降低的铁磁材料的元素比率的记录区域分离的磁记录介质中，预先蚀刻待离子注入的部分使离子注入后的高度相对低于非注入部分。
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公开(公告)号：US08361640B2
公开(公告)日：2013-01-29
申请号：US12378894
申请日：2009-02-20
IPC分类号： G11B5/66
摘要： Embodiments of the present invention provide recording area separated magnetic recording media (DTMs, BPMs) allowing magnetic heads to fly lower. According to one embodiment, the recording area separated magnetic recording media are configured so that magnetic recording layers have parts with the relatively higher element ratio of a ferromagnetic material, and parts with the lower element ratio of the ferromagnetic material, occurring periodically in the in-plane direction, and the average height from the substrate surface of the parts with the relatively higher element ratio of a ferromagnetic material is higher than the average height from the substrate surface of the parts with the lower element ratio of the ferromagnetic material. In producing recording area separated magnetic recording media with the element ratio of a ferromagnetic material relatively lowered by ion implantation, preliminarily etching the part to be ion implanted makes the height after ion implantation relatively lower than the non-implanted part.
摘要翻译： 本发明的实施例提供了允许磁头较低飞行的记录区分离的磁记录介质（DTM，BPM）。 根据一个实施例，记录区域分离的磁记录介质被配置为使得磁记录层具有铁磁材料的相对较高的元件比的部件，并且具有铁磁材料的较低元件比的部件在内部周期性地出现， 并且与铁磁材料相对较高的元件比的部件的基板表面的平均高度高于具有铁素体的较低元素比的部件的基板表面的平均高度。 在通过离子注入相对降低的铁磁材料的元素比率的记录区域分离的磁记录介质中，预先蚀刻待离子注入的部分使离子注入后的高度相对低于非注入部分。
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公开(公告)号：US20060292401A1
公开(公告)日：2006-12-28
申请号：US11415604
申请日：2006-05-01
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66
摘要： A bit error rate is improved and, at the same time, an aging change due to thermal fluctuation is decreased. In one embodiment, a magnetic recording medium has first, second, third, and fourth magnetic layers stacked over the underlayer film on a substrate. The product (Brt2) of the residual magnetic flux density and film thickness of the second magnetic layer is smaller than the product (Brt3) of the residual magnetic flux density and film thickness of the third magnetic layer. The second magnetic layer has a thickness larger than that of the third magnetic layer and is anti-ferromagnetically coupled with the first magnetic layer by way of the first non-magnetic intermediate layer. The fourth magnetic layer is formed by way of a second non-magnetic intermediate layer above the third magnetic layer. The product (Brt4) of the residual magnetic flux density and film thickness of the fourth magnetic layer is from about 47% to 52% of the product (Brt_total) of the residual magnetic flux density and film thickness of the entire magnetic layers in a state of residual magnetization with the external magnetic field removed.
摘要翻译： 改善了误码率，同时由于热波动引起的老化变化也降低。 在一个实施例中，磁记录介质具有层叠在基底上的下层膜上的第一，第二，第三和第四磁性层。 第二磁性层的剩余磁通密度和膜厚的乘积（Brt2）小于第三磁性层的剩余磁通密度和膜厚的乘积（Brt3）。 第二磁性层的厚度大于第三磁性层的厚度，并通过第一非磁性中间层与第一磁性层反铁磁耦合。 第四磁性层通过在第三磁性层上方的第二非磁性中间层形成。 剩余磁通密度和第四磁性层的膜厚的乘积（Brt4）为剩余磁通密度的乘积的约47％至52％（Brt_total）和处于整个状态的整个磁性层的膜厚度 的剩余磁化与外部磁场去除。
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公开(公告)号：US20060228588A1
公开(公告)日：2006-10-12
申请号：US11400736
申请日：2006-04-06
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66
摘要： A magnetic recording material is provided which has high medium S/N, and provides excellent overwriting characteristic, excellent thermal fluctuation and sufficient stability against thermal fluctuation. In one embodiment, a first underlayer comprising one of alloys of a Ti—Co alloy, a Ti—Co—Ni alloy, and an Ni—Ta alloy, a second underlayer comprising a W—Co alloy or Ta, and a third underlayer of a body-centered cubic structure comprising a Cr—Ti—B alloy or a Cr—Ti alloy are disposed over a substrate. A first magnetic layer comprising a Co—Cr—B alloy or a Co—Cr—Ta alloy, a second magnetic layer comprising a Co—Cr—Pt—B—Ta alloy, a third magnetic layer comprising a Co—Cr—Pt—B alloy, and a protective film are disposed further thereover. An intermediate region (Th) is disposed between the second magnetic layer and the third magnetic layer, the intermediate region having a higher oxygen concentration than those of the magnetic layers.
摘要翻译： 提供具有高介质S / N的磁记录材料，并提供优异的重写特性，优异的热波动和对热波动的足够的稳定性。 在一个实施例中，包括Ti-Co合金，Ti-Co-Ni合金和Ni-Ta合金的合金之一的第一底层，包含W-Co合金或Ta的第二底层和第三底层 将包含Cr-Ti-B合金或Cr-Ti合金的体心立方结构设置在基板上。 包含Co-Cr-B合金或Co-Cr-Ta合金的第一磁性层，包含Co-Cr-Pt-B-Ta合金的第二磁性层，包含Co-Cr-Pt- B合金和保护膜进一步配置。 中间区域（Th）设置在第二磁性层和第三磁性层之间，中间区域的氧浓度高于磁性层的氧浓度。
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公开(公告)号：US07704613B2
公开(公告)日：2010-04-27
申请号：US11415604
申请日：2006-05-01
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66
摘要： A bit error rate is improved and, at the same time, an aging change due to thermal fluctuation is decreased. In one embodiment, a magnetic recording medium has first, second, third, and fourth magnetic layers stacked over the underlayer film on a substrate. The product (Brt2) of the residual magnetic flux density and film thickness of the second magnetic layer is smaller than the product (Brt3) of the residual magnetic flux density and film thickness of the third magnetic layer. The second magnetic layer has a thickness larger than that of the third magnetic layer and is anti-ferromagnetically coupled with the first magnetic layer by way of the first non-magnetic intermediate layer. The fourth magnetic layer is formed by way of a second non-magnetic intermediate layer above the third magnetic layer. The product (Brt4) of the residual magnetic flux density and film thickness of the fourth magnetic layer is from about 47% to 52% of the product (Brt_total) of the residual magnetic flux density and film thickness of the entire magnetic layers in a state of residual magnetization with the external magnetic field removed.
摘要翻译： 改善了误码率，同时由于热波动引起的老化变化也降低。 在一个实施例中，磁记录介质具有层叠在基底上的下层膜上的第一，第二，第三和第四磁性层。 第二磁性层的剩余磁通密度和膜厚的乘积（Brt2）小于第三磁性层的剩余磁通密度和膜厚的乘积（Brt3）。 第二磁性层的厚度大于第三磁性层的厚度，并通过第一非磁性中间层与第一磁性层反铁磁耦合。 第四磁性层通过在第三磁性层上方的第二非磁性中间层形成。 剩余磁通密度和第四磁性层的膜厚的乘积（Brt4）为剩余磁通密度的乘积的约47％至52％（Brt_total）和处于整个状态的整个磁性层的膜厚度 的剩余磁化与外部磁场去除。
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