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11. 发明申请

US20060292401A1 Magnetic recording medium for high density recording 有权
标题翻译：用于高密度记录的磁记录介质
公开(公告)号：US20060292401A1
公开(公告)日：2006-12-28
申请号：US11415604
申请日：2006-05-01
申请人： Hiroyuki Suzuki , Hidekazu Kashiwase , Akira Morinaga , Tatsuya Hinoue
发明人： Hiroyuki Suzuki , Hidekazu Kashiwase , Akira Morinaga , Tatsuya Hinoue
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。

12. 发明授权

US08257845B2 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
标题翻译：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
CPC分类号： G11B5/66 , G11B5/855
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。

13. 发明授权

US07704613B2 Magnetic recording medium for high density recording 有权
标题翻译：用于高密度记录的磁记录介质
公开(公告)号：US07704613B2
公开(公告)日：2010-04-27
申请号：US11415604
申请日：2006-05-01
申请人： Hiroyuki Suzuki , Hidekazu Kashiwase , Akira Morinaga , Tatsuya Hinoue
发明人： Hiroyuki Suzuki , Hidekazu Kashiwase , Akira Morinaga , Tatsuya Hinoue
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。

14. 发明申请

US20090214898A1 MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF 有权
标题翻译：磁记录介质及其制造方法
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
IPC分类号： G11B5/62 , G11B5/84
CPC分类号： G11B5/66 , G11B5/855
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。

15. 发明申请

US20090214895A1 Magnetic recording medium and manufacturing method thereof 有权
标题翻译：磁记录介质及其制造方法
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
IPC分类号： G11B5/66 , C23C14/04
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。

16. 发明申请

US20060269793A1 Magnetic recording medium for longitudinal recording 审中-公开
标题翻译：用于纵向记录的磁记录介质
公开(公告)号：US20060269793A1
公开(公告)日：2006-11-30
申请号：US11440504
申请日：2006-05-24
申请人： Tatsuya Hinoue , Koji Sakamoto , Hiroyuki Suzuki , Takuya Kojima
发明人： Tatsuya Hinoue , Koji Sakamoto , Hiroyuki Suzuki , Takuya Kojima
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66
摘要： A longitudinal magnetic recording medium having high medium S/N ratio, no problem for overwriting characteristics, excellent bit error rate and also sufficient thermal stability is provided. In one embodiment, a medium has a substrate, an underlayer film formed above the substrate, a magnetic film formed by stacking a first magnetic layer, a second magnetic layer, a third magnetic layer, a non-magnetic intermediate layer and a fourth magnetic layer over the underlayer film, and a protective film formed over the magnetic film, in which each of the magnetic layers of the magnetic film comprises a cobalt-based alloy containing chromium, the first magnetic layer has the least thickness among all the magnetic layers, the second, the third and the fourth magnetic layer each further contain platinum and boron, Brt of the second magnetic layer is smaller than Brt of the third magnetic layer, Brt of the third magnetic layer is smaller than Brt of the fourth magnetic layer, and the ratio of Brt of the fourth magnetic layer to Brt of the entire magnetic film is within a range from about 40% to about 55%.
摘要翻译：提供具有高介质S / N比的纵向磁记录介质，不存在重写特性问题，优异的误码率和足够的热稳定性。在一个实施例中，介质具有衬底，在衬底上形成的下层膜，通过层叠第一磁性层，第二磁性层，第三磁性层，非磁性中间层和第四磁性层形成的磁性膜以及形成在磁性膜上的保护膜，其中磁性膜的每个磁性层包含含有铬的钴基合金，第一磁性层在所有磁性层中的厚度最小，第二磁性层的第三磁性层和第四磁性层的每一个都含有铂和硼，第二磁性层的Brt小于第三磁性层的Brt，第三磁性层的Brt小于第四磁性层的Brt，第四磁性层的Brt与整个磁性膜的Brt的比例在约40％至约55％的范围内。

17. 发明申请

US20060051620A1 Magnetic recording medium with high areal recording density and magnetic recording apparatus 审中-公开
标题翻译：具有高面积记录密度的磁记录介质和磁记录装置
公开(公告)号：US20060051620A1
公开(公告)日：2006-03-09
申请号：US11223407
申请日：2005-09-09
申请人： Tatsuya Hinoue , Jo Inagaki , Hiroyuki Suzuki , Kohei Tozawa
发明人： Tatsuya Hinoue , Jo Inagaki , Hiroyuki Suzuki , Kohei Tozawa
IPC分类号： G11B5/66 , G11B5/23
CPC分类号： G11B5/7325 , G11B5/23 , G11B5/656 , G11B5/66
摘要： A magnetic recording medium for attaining high areal recording density and a magnetic recording apparatus are provided. In one embodiment, a magnetic recording medium is provided which includes underlayers, a first magnetic layer, a first intermediate layer, a second magnetic layer, a second intermediate layer, a third magnetic layer, a protective layer and a lubricant layer formed in sequence on a substrate. The first magnetic layer comprises a cobalt-based alloy, and the second magnetic layer and the third magnetic layer each comprises a Co-based alloy containing platinum, chromium and boron. The concentration of chromium contained in the third magnetic layer is less than that in the second magnetic layer, the concentration of chromium contained in the third magnetic layer is about 15 at. % or less, and the first intermediate layer comprises ruthenium or an alloy having ruthenium as a main ingredient.
摘要翻译：提供了用于实现高面积记录密度的磁记录介质和磁记录装置。在一个实施例中，提供了一种磁记录介质，其包括底层，第一磁性层，第一中间层，第二磁性层，第二中间层，第三磁性层，保护层和润滑剂层，底物。第一磁性层包括钴基合金，第二磁性层和第三磁性层各自包含含有铂，铬和硼的Co基合金。第三磁性层中含有的铬的浓度小于第二磁性层中的铬浓度，第三磁性层中含有的铬的浓度为约15at。％以下，第一中间层包含钌或以钌为主要成分的合金。

18. 发明授权

US08383253B2 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
标题翻译：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。

19. 发明申请

US20100302682A1 Magnetic Recording Media Having Recording Regions and Separation Regions That Have Different Lattice Constants and Manufacturing Methods Thereof 审中-公开
标题翻译：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
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/65 , G11B5/743 , G11B5/855
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。

20. 发明授权

US06887565B2 Magnetic recording medium and magnetic storage device 失效
公开(公告)号：US06887565B2
公开(公告)日：2005-05-03
申请号：US10306361
申请日：2002-11-27
申请人： Tetsuya Kanbe , Yotsuo Yahisa , Hiroyuki Suzuki , Hidekazu Kashiwase
发明人： Tetsuya Kanbe , Yotsuo Yahisa , Hiroyuki Suzuki , Hidekazu Kashiwase
IPC分类号： G11B5/738 , G11B5/64 , G11B5/65 , G11B5/66 , G11B5/73 , G11B5/70
CPC分类号： G11B5/7325 , G11B5/66 , Y10S428/90 , Y10T428/12465 , Y10T428/12854 , Y10T428/265
摘要： An inplane magnetic recording medium having high S/N and thermal stability and a reliable magnetic storage device having surface recording density of 50 megabit/mm2 or more is described. The magnetic recording medium includes magnetic layers formed on a nonmagnetic substrate with a plurality of ground layers therebetween, at least one of the ground layers formed from an alloy of a body-centered cubic structure containing Cr as a main component and B of from 2 atomic % to 12 atomic %. Main components of the magnetic layers include a lower magnetic layer containing Co and Cr of from 10 atomic % to 16 atomic %, with film thickness of from 1.5 nm to 4.5 nm, and an upper magnetic layer containing Co, coupling anti-ferromagnetically with the lower magnetic layer through nonmagnetic intermediate layers.

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