专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08605555B1 Recording media with multiple bi-layers of heatsink layer and amorphous layer for energy assisted magnetic recording system and methods for fabricating the same 有权
标题翻译：具有用于能量辅助磁记录系统的多个散热层和非晶层的双层记录介质及其制造方法
公开(公告)号：US08605555B1
公开(公告)日：2013-12-10
申请号：US13451380
申请日：2012-04-19
申请人： Alexander S. Chernyshov , Hua Yuan , Bogdan Valcu , Antony Ajan , B. Ramamurthy Acharya
发明人： Alexander S. Chernyshov , Hua Yuan , Bogdan Valcu , Antony Ajan , B. Ramamurthy Acharya
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： An energy assisted magnetic recording (EAMR) system includes a magnetic recording medium including a plurality of bi-layers and a magnetic recording layer on the plurality of bi-layers, a magnetic transducer configured to write information to the magnetic recording medium, and a light source positioned proximate the magnetic transducer and configured to heat the magnetic recording medium. Each of the plurality of bi-layers includes a heatsink layer and an amorphous under-layer on the heatsink layer.
摘要翻译：能量辅助磁记录（EAMR）系统包括在多个双层上包括多个双层和磁记录层的磁记录介质，配置成将信息写入磁记录介质的磁传感器，以及光源位于靠近磁换能器并被配置为加热磁记录介质。多个双层中的每一个在散热层上包括散热层和无定形底层。

2. 发明授权

US08941950B2 Underlayers for heat assisted magnetic recording (HAMR) media 有权
标题翻译：用于热辅助磁记录（HAMR）介质的底层
公开(公告)号：US08941950B2
公开(公告)日：2015-01-27
申请号：US13479217
申请日：2012-05-23
申请人： Hua Yuan , Antony Ajan , Alexander S. Chernyshov , B. Ramamurthy Acharya
发明人： Hua Yuan , Antony Ajan , Alexander S. Chernyshov , B. Ramamurthy Acharya
IPC分类号： G11B5/73 , G11B5/82
CPC分类号： G11B5/7325 , G11B5/65
摘要： Various embodiments provide for a heat assisted magnetic recording (HAMR) media comprising: a magnetic recording layer; a barrier layer disposed under the magnetic recording layer; a first underlayer disposed under the barrier layer; and an amorphous seedlayer disposed under the first underlayer. For some embodiments, the recording medium may comprise: a magnetic recording layer including FePt alloy, a CoPt alloy, or a FePd alloy; a barrier layer including MgO, TiC, TiN, CrN, TiCN, β-WC, TaC, HfC, ZrC, VC, NbC, or NiO; a first underlayer including RuAl-oxide, NiAl, FeAl, AlMn, CuBe, or AlRe; or an amorphous seedlayer including a Cr—X alloy, where X comprises Al, B, C, Cu, Hf, Ho, Mn, Mo, Ni, Ta, Ti, V, W, or Ru.
摘要翻译：各种实施例提供了一种热辅助磁记录（HAMR）介质，包括：磁记录层; 设置在所述磁记录层下方的阻挡层; 设置在所述阻挡层下方的第一底层; 以及设置在所述第一底层下方的无定形种子层。对于一些实施例，记录介质可以包括：包括FePt合金，CoPt合金或FePd合金的磁记录层; 包含MgO，TiC，TiN，CrN，TiCN，...，WC，TaC，HfC，ZrC，VC，NbC或NiO的阻挡层; 包括RuAl-氧化物，NiAl，FeAl，AlMn，CuBe或AlRe的第一底层; 或包含Cr-X合金的无定形籽晶层，其中X包括Al，B，C，Cu，Hf，Ho，Mn，Mo，Ni，Ta，Ti，V，W或Ru。

3. 发明授权

US08609263B1 Systems and methods for forming magnetic media with an underlayer 有权
标题翻译：用底层形成磁性介质的系统和方法
公开(公告)号：US08609263B1
公开(公告)日：2013-12-17
申请号：US13112959
申请日：2011-05-20
申请人： Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya , Antony Ajan
发明人： Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya , Antony Ajan
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/8404
摘要： Systems and methods for forming magnetic media with an underlayer are provided. One such method includes providing a non-magnetic substrate, forming a seed layer above the substrate, the seed layer including MgO, forming an underlayer on the seed layer, the underlayer including a material selected from the group consisting of Pd, Pt, W, Fe, V, Cu, and Ag, and forming a magnetic recording layer on the underlayer, the recording layer including FePt oxide.
摘要翻译：提供了用于形成具有底层的磁性介质的系统和方法。一种这样的方法包括提供非磁性基底，在基底上形成种子层，种子层包括MgO，在种子层上形成底层，底层包括选自Pd，Pt，W， Fe，V，Cu和Ag，并且在底层上形成磁记录层，记录层包括FePt氧化物。

4. 发明授权

US09269480B1 Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording 有权
标题翻译：用于形成磁记录介质的系统和方法，具有改善的晶体柱状生长用于能量辅助磁记录
公开(公告)号：US09269480B1
公开(公告)日：2016-02-23
申请号：US13436596
申请日：2012-03-30
申请人： Antony Ajan , Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya
发明人： Antony Ajan , Alexander Chernyshov , Hua Yuan , B. Ramamurthy Acharya
IPC分类号： H01F1/00
CPC分类号： G11B5/733 , G11B5/647 , G11B5/65 , G11B5/653 , G11B5/732 , G11B5/7325 , G11B5/855 , H01F1/0027 , H01F10/123 , H01F41/30
摘要： Systems and methods for forming magnetic recording media with improved columnar growth for energy assisted magnetic recording are provided. In one such method, a first sub-layer of a magnetic layer is formed on a substrate, the magnetic layer including a magnetic material and a plurality of non-magnetic segregants, a top surface of the first sub-layer is etched to substantially remove the non-magnetic segregants accumulated on the top surface, and a second sub-layer of the magnetic layer is formed on the first sub-layer.
摘要翻译：提供了用于形成用于能量辅助磁记录的具有改进的柱状生长的磁记录介质的系统和方法。在一种这样的方法中，磁性层的第一子层形成在衬底上，磁性层包括磁性材料和多个非磁性分离器，第一子层的顶表面被蚀刻以基本上除去聚集在顶表面上的非磁性分离体和磁性层的第二子层形成在第一子层上。

5. 发明授权

US08993134B2 Electrically conductive underlayer to grow FePt granular media with (001) texture on glass substrates 有权
标题翻译：导电底层，在玻璃基板上生长具有（001）纹理的FePt颗粒介质
公开(公告)号：US08993134B2
公开(公告)日：2015-03-31
申请号：US13537379
申请日：2012-06-29
申请人： Bollapragada Varaprasad , Yukiko Takahashi , Kazuhiro Hono , Antony Ajan , Hua Yuan , Alexander S. Chernyshov
发明人： Bollapragada Varaprasad , Yukiko Takahashi , Kazuhiro Hono , Antony Ajan , Hua Yuan , Alexander S. Chernyshov
IPC分类号： G11B5/66 , G11B5/73 , G11B5/84 , G11B5/851
CPC分类号： G11B5/8404 , G11B5/7325 , G11B5/851 , Y10T428/1121
摘要： A perpendicular magnetic recording medium, comprising: a substrate; a buffer layer deposited in a first orientation on top of the substrate; an underlayer deposited in a second orientation on top of the buffer layer, the underlayer comprising an electrically conductive oxide; and a magnetic recording layer deposited on top of the underlayer and having an axis of magnetic anisotropy substantially perpendicular to the surface thereof.
摘要翻译：一种垂直磁记录介质，包括：基板; 在衬底的顶部上以第一取向沉积的缓冲层; 在所述缓冲层顶部以第二取向沉积的底层，所述底层包含导电氧化物; 以及沉积在底层的顶部上且具有基本上垂直于其表面的磁各向异性轴的磁记录层。

6. 发明申请

US20140335376A1 ELECTRICALLY CONDUCTIVE UNDERLAYER TO GROW FEPT GRANULAR MEDIA WITH (001) TEXTURE ON GLASS SUBSTRATES 有权
标题翻译：电导电底层生成玻璃基底上（001）纹理的深灰色介质
公开(公告)号：US20140335376A1
公开(公告)日：2014-11-13
申请号：US13537379
申请日：2012-06-29
申请人： BOLLAPRAGADA VALAPRASAD , Yukiko Takahashi , Kazuhiro Hono , Antony Ajan , Hua Yuan , Alexander S. Chernyshov
发明人： BOLLAPRAGADA VALAPRASAD , Yukiko Takahashi , Kazuhiro Hono , Antony Ajan , Hua Yuan , Alexander S. Chernyshov
IPC分类号： G11B5/39 , G11B5/851 , C23C14/18 , C23C14/34 , C23C14/08
CPC分类号： G11B5/8404 , G11B5/7325 , G11B5/851 , Y10T428/1121
摘要： A perpendicular magnetic recording medium, comprising: a substrate; a buffer layer deposited in a first orientation on top of the substrate; an underlayer deposited in a second orientation on top of the buffer layer, the underlayer comprising an electrically conductive oxide; and a magnetic recording layer deposited on top of the underlayer and having an axis of magnetic anisotropy substantially perpendicular to the surface thereof.
摘要翻译：一种垂直磁记录介质，包括：基板; 在衬底的顶部上以第一取向沉积的缓冲层; 在所述缓冲层顶部以第二取向沉积的底层，所述底层包含导电氧化物; 以及沉积在底层的顶部上且具有基本上垂直于其表面的磁各向异性轴的磁记录层。

7. 发明授权

US07264892B2 Magnetic recording medium and magnetic storage apparatus 失效
标题翻译：磁记录介质和磁存储装置
公开(公告)号：US07264892B2
公开(公告)日：2007-09-04
申请号：US10936005
申请日：2004-09-08
申请人： Antony Ajan , Akihiro Inomata , E. Noel Abarra , B. Ramamurthy Acharya
发明人： Antony Ajan , Akihiro Inomata , E. Noel Abarra , B. Ramamurthy Acharya
IPC分类号： G11B5/66
CPC分类号： G11B5/732 , G11B5/012 , G11B5/656 , G11B5/66 , G11B5/7325 , Y10T428/265
摘要： A magnetic recording medium includes a substrate, a magnetic recording layer made of a Co alloy or a CoCr alloy, a seed layer disposed between the substrate and the magnetic recording layer, and an underlayer made of a binary alloy material having a B2 structure and disposed between the seed layer and the magnetic recording layer. The seed layer is made of a material comprising essentially of one of elements forming the binary alloy material of the underlayer.
摘要翻译：磁记录介质包括基板，由Co合金或CoCr合金制成的磁记录层，设置在基板和磁记录层之间的种子层，以及由具有B2结构的二元合金材料制成的底层在种子层和磁记录层之间。种子层由基本上由形成底层的二元合金材料的元素之一组成的材料制成。

8. 发明申请

US20090257147A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING APPARATUS 审中-公开
标题翻译：全磁记录介质和磁记录装置
公开(公告)号：US20090257147A1
公开(公告)日：2009-10-15
申请号：US12488035
申请日：2009-06-19
申请人： Antony Ajan
发明人： Antony Ajan
IPC分类号： G11B5/127 , G11B5/667
CPC分类号： G11B5/667
摘要： A disclosed perpendicular magnetic recording medium includes a substrate; a soft magnetic underlayer disposed on the substrate and having no remanent magnetization; and a ferromagnetic recording layer disposed on the soft magnetic underlayer. The soft magnetic underlayer includes at least three soft magnetic layers laid one above the other with a non-magnetic intermediate layer interposed between every two adjacent soft magnetic layers. Among the (at least) three soft magnetic layers, at least one pair of soft magnetic layers form ferromagnetic coupling. Among the (at least) three soft magnetic layers, at least one pair of soft magnetic layers form antiferromagnetic coupling.
摘要翻译：所公开的垂直磁记录介质包括基板; 设置在基板上并且不具有剩磁的软磁性底层; 以及设置在软磁性底层上的铁磁记录层。所述软磁性底层包括至少三层软磁层，所述至少三层软磁层以介于每两相邻的软磁性层之间的非磁性中间层彼此重叠。在（至少）三个软磁层中，至少一对软磁层形成铁磁耦合。在（至少）三个软磁层中，至少一对软磁层形成反铁磁耦合。

9. 发明申请

US20070231609A1 Perpendicular magnetic recording medium and magnetic memory apparatus 审中-公开
标题翻译：垂直磁记录介质和磁存储设备
公开(公告)号：US20070231609A1
公开(公告)日：2007-10-04
申请号：US11505943
申请日：2006-08-18
申请人： Antony Ajan , Toshio Sugimoto , Ryo Kurita
发明人： Antony Ajan , Toshio Sugimoto , Ryo Kurita
IPC分类号： G11B5/66
CPC分类号： G11B5/667 , G11B5/65 , G11B5/66 , G11B5/7325
摘要： A perpendicular magnetic recording medium is disclosed that includes a substrate, and a recording layer formed on the substrate, the recording layer having a magnetic easy axis substantially perpendicular to the surface of the substrate and including three or more magnetic layers containing a Co alloy having a hcp structure. The two of the magnetic layers included in the recording layer form an anti-ferromagnetic exchange coupling structure. The two magnetic layers are anti-ferromagnetically exchange coupled via a non-magnetic coupling layer situated therebetween. The magnetizations of the two magnetic layers are anti-parallel to each other at a remanent magnetization state.
摘要翻译：公开了一种垂直磁记录介质，其包括基板和形成在基板上的记录层，记录层具有基本垂直于基板表面的易磁化轴，并且包括三个或更多个含有Co合金的磁性层， hcp结构。包含在记录层中的两个磁性层形成反铁磁交换耦合结构。两个磁性层经由位于其间的非磁性耦合层进行反铁磁交换耦合。两个磁性层的磁化在剩余磁化状态下彼此反平行。

10. 发明授权

US07074508B2 Magnetic recording medium including at least one superparamagnetic layer and magnetic storage apparatus 失效
标题翻译：包括至少一个超顺磁层和磁存储装置的磁记录介质
公开(公告)号：US07074508B2
公开(公告)日：2006-07-11
申请号：US10914960
申请日：2004-08-10
申请人： Antony Ajan
发明人： Antony Ajan
IPC分类号： G11B5/66
CPC分类号： G11B5/732 , G11B5/656 , G11B5/66 , G11B5/7325
摘要： A magnetic recording medium has a base structure, and a synthetic ferrimagnetic structure which is disposed on the base structure and forms a recording layer. The synthetic ferrimagnetic structure includes at least a bottom magnetic layer and a top magnetic layer which are antiferromagnetically coupled via a nonmagnetic spacer layer. The bottom magnetic layer is made of a superparamagnetic layer, and the top magnetic layer is made of a ferromagnetic material. Magnetic moment orientations of the bottom and top magnetic layers are antiparallel at remanent state where an external applied magnetic field is zero. This is achieved since the bottom magnetic layer is in a reverse saturated state due to exchange coupling at remanence, though coercivity is zero for bottom magnetic layer.
摘要翻译：磁记录介质具有基底结构，以及合成亚铁磁结构，其设置在基底结构上并形成记录层。合成亚铁磁结构至少包括通过非磁性间隔层反铁磁耦合的底部磁性层和顶部磁性层。底部磁性层由超顺磁层制成，顶部磁性层由铁磁材料制成。在外部施加的磁场为零的剩余状态下，底部和顶部磁性层的磁矩取向是反平行的。这是由于底部磁性层由于剩磁时的交换耦合而处于反向饱和状态，尽管底部磁性层的矫顽力为零，但是这是可以实现的。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式