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11. 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。

12. 发明授权

US07876530B2 Magnetic recording medium having a cobalt-based alloy film for high density recording and magnetic storage device using same 有权
标题翻译：具有用于高密度记录的钴基合金膜和使用它的磁存储装置的磁记录介质
公开(公告)号：US07876530B2
公开(公告)日：2011-01-25
申请号：US12387164
申请日：2009-04-28
申请人： Tatsuya Hinoue , Yotsuo Yahisa , Tomoo Yamamoto , Jo Inagaki , Hiroyuki Suzuki , Masae Suzuki, legal representative , Hidekazu Kashiwase
发明人： Tatsuya Hinoue , Yotsuo Yahisa , Tomoo Yamamoto , Jo Inagaki , Hiroyuki Suzuki , Hidekazu Kashiwase
IPC分类号： G11B5/66 , B32B3/02
CPC分类号： G11B5/65 , G11B5/656 , G11B5/66 , H01F10/16 , H01F10/265
摘要： In one embodiment, a magnetic recording medium comprises an underlying film, a magnetic film and a protective film formed in this order on a substrate. The magnetic film is a cobalt-base alloy film containing chromium and has a plurality of magnetic layers stacked without interposition of any non-magnetic layer. The plural magnetic layers comprise first, second and third magnetic layers. The first magnetic layer is disposed between the underlying film and the second magnetic layer. The second magnetic layer is disposed between the first magnetic layer and the third magnetic layer. The third magnetic layer is disposed between the second magnetic layer and the protective film. The concentration of chromium contained in the first magnetic layer is lower than that of chromium contained in the second magnetic layer. The thickness of the first magnetic layer is smaller than that of the second magnetic layer. The magnetic layers which overlie the first magnetic layer further contain platinum and boron. The concentration of chromium contained in the third magnetic layer is lower than that of chromium contained in the second magnetic layer.
摘要翻译：在一个实施例中，磁记录介质包括在衬底上依次形成的下面的膜，磁性膜和保护膜。磁性膜是含有铬的钴基合金膜，并且具有堆叠而不插入任何非磁性层的多个磁性层。多个磁性层包括第一，第二和第三磁性层。第一磁性层设置在下面的膜和第二磁性层之间。第二磁性层设置在第一磁性层和第三磁性层之间。第三磁性层设置在第二磁性层和保护膜之间。第一磁性层中含有的铬的浓度低于第二磁性层中含有的铬的浓度。第一磁性层的厚度小于第二磁性层的厚度。覆盖在第一磁性层上的磁性层还含有铂和硼。第三磁性层中含有的铬的浓度低于第二磁性层中含有的铬的浓度。

13. 发明授权

US07267894B2 Magnetic recording medium and magnetic recording apparatus 失效
标题翻译：磁记录介质和磁记录装置
公开(公告)号：US07267894B2
公开(公告)日：2007-09-11
申请号：US10656746
申请日：2003-09-04
申请人： Tetsuya Kanbe , Tatsuya Hinoue , Yotsuo Yahisa , Hidekazu Kashiwase , Hiroyuki Suzuki
发明人： Tetsuya Kanbe , Tatsuya Hinoue , Yotsuo Yahisa , Hidekazu Kashiwase , Hiroyuki Suzuki
IPC分类号： G11B5/66 , G11B5/70
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66
摘要： A magnetic recording apparatus including a drive unit to drive the magnetic recording medium, a compound-type magnetic head, a means to move the magnetic head relative to the magnetic recording medium, and a means to process recording and retrieving signals generated by the magnetic head. The magnetic recording medium comprises a non-magnetic substrate and a magnetic layer formed thereon with three underlayers interposed inbetween. The magnetic layer is composed of a plurality of layers of Co-based alloy of hexagonal close-packed structure which are antiferromagnetically coupled to one another through a non-magnetic intermediate layer, said three underlayers including an amorphous alloy layer, a Ta layer, and a Cr-based alloy layer of body-centered cubic structure.
摘要翻译：一种磁记录装置，包括驱动磁记录介质的驱动单元，复合型磁头，磁头相对于磁记录介质移动的装置，以及处理由磁头产生的信号的记录和检索装置。磁记录介质包括非磁性基底和形成在其上的三层底层之间的磁性层。磁性层由多层通过非磁性中间层反铁磁耦合的六方密堆积结构的Co基合金层构成，所述三个底层包括非晶合金层，Ta层和体心立方结构的Cr基合金层。

14. 发明申请

US20050053805A1 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US20050053805A1
公开(公告)日：2005-03-10
申请号：US10856094
申请日：2004-05-28
申请人： Tatsuya Hinoue , Tetsuya Kanbe , Hiroyuki Suzuki , Tomoo Yamamoto
发明人： Tatsuya Hinoue , Tetsuya Kanbe , Hiroyuki Suzuki , Tomoo Yamamoto
IPC分类号： G11B5/64 , G11B5/65 , G11B5/66 , G11B5/73 , G11B5/738
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/66 , Y10T428/12931 , Y10T428/265
摘要： A magnetic recording medium capable of attaining high in-plane recording density of 100 Mbits or more per 1 mm2 is provided. Magnetic recording medium is provided in which underlayers, a first magnetic layer, a first intermediate layer, a second magnetic layer, a second intermediate layer, a third magnetic layer, a protection layer and lubrication layer are formed in this order above a substrate. Each of the third magnetic layer and the second magnetic layer comprises a Co-based alloy containing at least Pt, Cr and B. The concentration of Pt contained in the second magnetic layer is not more than that in the third magnetic layer.
摘要翻译：提供能够获得每1mm 2的100Mb以上的高面内记录密度的磁记录介质。提供磁性记录介质，其中在衬底上方依次形成底层，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，保护层和润滑层。第三磁性层和第二磁性层中的每一个包含至少含有Pt，Cr和B的Co基合金。第二磁性层中所含的Pt的浓度不大于第三磁性层中的浓度。

15. 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。

16. 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。

17. 发明授权

US07532436B2 Magnetic recording medium and magnetic memory device for high density recording 有权
标题翻译：用于高密度记录的磁记录介质和磁存储器件
公开(公告)号：US07532436B2
公开(公告)日：2009-05-12
申请号：US11223603
申请日：2005-09-09
申请人： Tatsuya Hinoue , Hidekazu Kashiwase , Hiroyuki Suzuki , Tomoo Yamamoto
发明人： Tatsuya Hinoue , Hidekazu Kashiwase , Hiroyuki Suzuki , Tomoo Yamamoto
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/31 , G11B5/656 , G11B5/66
摘要： A longitudinal magnetic recording medium having a high medium S/N, with no problems in view of the overwrite characteristic, excellent in the bit error rate and sufficiently stable also to thermal fluctuations is provided. In one embodiment, a first underlayer, second underlayer, and a third underlayer are formed on a substrate and, further, a first magnetic layer, a spacer layer including Ru as a main ingredient, a second magnetic layer, and a third magnetic layer are formed in adjacent with each other in this order. The thickness of the second magnetic layer is made larger than the thickness of the third magnetic layer and the total for the concentrations of cobalt and platinum obtained in the second magnetic layer is not more than the total for the concentrations of cobalt and platinum contained in the third magnetic layer.
摘要翻译：提供具有高介质S / N的纵向磁记录介质，考虑到重写特性没有问题，具有优异的误码率和足够稳定的热波动。在一个实施例中，在基板上形成第一底层，第二底层和第三底层，此外，第一磁性层，包括Ru作为主要成分的间隔层，第二磁性层和第三磁性层是以这种顺序彼此相邻地形成。使第二磁性层的厚度大于第三磁性层的厚度，并且在第二磁性层中获得的钴和铂的浓度的总和不超过包含在第二磁性层中的钴和铂的浓度的总和第三磁性层。

18. 发明授权

US07163756B2 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US07163756B2
公开(公告)日：2007-01-16
申请号：US10733928
申请日：2003-12-10
申请人： Tomoo Yamamoto , Yotsuo Yahisa , Tatsuya Hinoue , Hidekazu Kashiwase , Tetsuya Kanbe , Hiroyuki Suzuki
发明人： Tomoo Yamamoto , Yotsuo Yahisa , Tatsuya Hinoue , Hidekazu Kashiwase , Tetsuya Kanbe , Hiroyuki Suzuki
IPC分类号： G11B5/66
CPC分类号： G11B5/732 , G11B5/66 , G11B5/7325
摘要： A large-capacity, low-cost, longitudinal magnetic recording medium capable of ultra-high-density recording of 70 Gigabits or more per square inch is disclosed. The longitudinal magnetic recording medium of the present invention comprises a first seed layer, a second seed layer, a first underlayer, a second underlayer, and a magnetic layer, which are formed on a nonmagnetic substrate in this order. A material containing at least Al and any one of Ru and Re is used to form the second seed layer, and a material containing at least any one of Co and Ni and one or both of Al and Ti is used to form the first underlayer. It is also possible to use Cr or a Cr alloy containing Cr and at least one element selected from the constituent element group A consisting of Ti, Mo, and W for forming the second seed layer.
摘要翻译：公开了能够以每平方英寸70吉比特或更多的超高密度记录的大容量，低成本的纵向磁记录介质。本发明的纵向磁记录介质包括依次形成在非磁性基板上的第一种子层，第二籽晶层，第一底层，第二底层和磁性层。使用至少包含Al和Ru和Re中的任何一种的材料来形成第二种子层，并且使用包含Co和Ni中的至少一种以及Al和Ti中的一种或两种的材料来形成第一底层。也可以使用含有Cr的Cr或Cr合金和选自由Ti，Mo和W构成的构成元素组A中的至少一种元素来形成第二种子层。

19. 发明申请

US20060057429A1 Magnetic recording medium and magnetic memory device for high density recording 有权
公开(公告)号：US20060057429A1
公开(公告)日：2006-03-16
申请号：US11223603
申请日：2005-09-09
申请人： Tatsuya Hinoue , Hidekazu Kashiwase , Hiroyuki Suzuki , Tomoo Yamamoto
发明人： Tatsuya Hinoue , Hidekazu Kashiwase , Hiroyuki Suzuki , Tomoo Yamamoto
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/31 , G11B5/656 , G11B5/66
摘要： A longitudinal magnetic recording medium having a high medium S/N, with no problems in view of the overwrite characteristic, excellent in the bit error rate and sufficiently stable also to thermal fluctuations is provided. In one embodiment, a first underlayer, second underlayer, and a third underlayer are formed on a substrate and, further, a first magnetic layer, a spacer layer including Ru as a main ingredient, a second magnetic layer, and a third magnetic layer are formed in adjacent with each other in this order. The thickness of the second magnetic layer is made larger than the thickness of the third magnetic layer and the total for the concentrations of cobalt and platinum obtained in the second magnetic layer is not more than the total for the concentrations of cobalt and platinum contained in the third magnetic layer.

20. 发明授权

US06372367B1 Magnetic recording medium, method for producing the same and magnetic recording apparatus using the same 失效
标题翻译：磁记录介质及其制造方法及使用其的磁记录装置
公开(公告)号：US06372367B1
公开(公告)日：2002-04-16
申请号：US09309580
申请日：1999-05-11
申请人： Yoshibumi Matsuda , Yotsuo Yahisa , Hiroyuki Suzuki , Koji Sakamoto , Yoko Ogawa , Hiroshi Tani , Susumu Funamoto , Akira Kato , Yuzuru Hosoe
发明人： Yoshibumi Matsuda , Yotsuo Yahisa , Hiroyuki Suzuki , Koji Sakamoto , Yoko Ogawa , Hiroshi Tani , Susumu Funamoto , Akira Kato , Yuzuru Hosoe
IPC分类号： B32B302
CPC分类号： G11B5/7325 , B32B3/02 , B32B15/04 , G11B5/656
摘要： A magnetic recording medium having a high reliability of durability against frictional motion can be ensured even in a severe rubbing test, while a low noise characteristic important for achievement of high-density recording is kept. A first underlayer made of an alloy containing Co or Ni as a main component and containing Cr and Zr simultaneously is formed over a base, a second underlayer having a rough surface is formed on the first underlayer, a third underlayer made of an alloy containing Ni as a main component and containing Cr and Zr simultaneously is formed over the second underlayer, a fourth underlayer as a film for controlling crystalline orientation is formed on the third underlayer, a magnetic layer made of an alloy containing cobalt a main component is formed over the fourth underlayer, and a protective film containing carbon as a main component is formed on the magnetic layer.
摘要翻译：即使在严重的摩擦试验中也能够确保具有高摩擦运动耐久性的可靠性的磁记录介质，同时保持对于实现高密度记录重要的低噪声特性。在基体上形成由含有Co或Ni作为主要成分并含有Cr和Zr的合金制成的第一底层，在第一底层上形成具有粗糙表面的第二底层，由含Ni的合金制成的第三底层作为主要成分并且在第二底层上同时形成含有Cr和Zr的第三底层，在第三底层上形成作为用于控制结晶取向的膜的第四底层，在包含主要成分的钴的合金制成的磁性层上形成第四底层，在该磁性层上形成含有碳的保护膜作为主要成分。

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