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1. 发明授权

US06908689B1 Ruthenium-aluminum underlayer for magnetic recording media 失效
标题翻译：用于磁记录介质的钌铝底层
公开(公告)号：US06908689B1
公开(公告)日：2005-06-21
申请号：US10022728
申请日：2001-12-20
申请人： Qixu Chen , Zhong Wu , Samuel D. Harkness, IV , Rajiv Y. Ranjan
发明人： Qixu Chen , Zhong Wu , Samuel D. Harkness, IV , Rajiv Y. Ranjan
IPC分类号： G11B5/64 , G11B5/73 , G11B5/66
CPC分类号： G11B5/7325 , G11B5/656 , Y10T428/12465 , Y10T428/12743 , Y10T428/1275 , Y10T428/12931 , Y10T428/26 , Y10T428/31
摘要： A magnetic recording medium containing a B-2 structured ruthenium-aluminum underlayer comprising a (200) crystallographic orientation with a thickness from about 50 Å to about 800 Å, and a magnetic layer with a Co(11.0) crystallographic orientation, and a method of making the same are disclosed. The medium deposited on mechanically textured and surface-oxidized NiP film has a relatively high remanent coercivity and a relatively high signal to medium noise ratio even at low OR-Mrt.
摘要翻译：一种含有B层结构的钌 - 铝底层的磁记录介质，其包含厚度为约至约800埃的（200）结晶取向和具有Co（11.0）结晶取向的磁性层，以及一种做出相同的披露。沉积在机械织构和表面氧化的NiP膜上的介质具有相对较高的残余矫顽力和甚至在低OR-Mrt时相对较高的信噪比。

2. 发明授权

US06432562B1 Magnetic recording medium with a nialru seedlayer 有权
标题翻译：具有nialru种子层的磁记录介质
公开(公告)号：US06432562B1
公开(公告)日：2002-08-13
申请号：US09393328
申请日：1999-09-10
申请人： Stella Z. Wu , Qixu Chen , Samuel D. Harkness, IV , Rajiv Y. Ranjan
发明人： Stella Z. Wu , Qixu Chen , Samuel D. Harkness, IV , Rajiv Y. Ranjan
IPC分类号： G11B566
CPC分类号： G11B5/732 , G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10T428/265
摘要： High areal density magnetic recording media exhibiting high magnetic performance, e.g., narrow PW50, and high OW, and high SNR, are formed with a NiAlRu seedlayer. Embodiments of the present invention include sputter depositing a NiAlRu seedlayer on a non-magnetic substrate and sequentially depositing thereon a Cr or Cr alloy underlayer, e.g., CrMo, CrMn, CrV or CrW, a magnetic layer, e.g., a Co—Cr-containing magnetic alloy layer, and a protective overcoat, e.g., a carbon-containing protective overcoat.
摘要翻译：使用NiAlRu种子层形成表现出高磁性能的高密度磁记录介质，例如窄PW50，高OW，高SNR。本发明的实施例包括在非磁性衬底上溅射沉积NiAlRu种子层并且在其上依次沉积Cr或Cr合金底层，例如CrMo，CrMn，CrV或CrW，磁性层，例如含Co-Cr 磁性合金层和保护性外涂层，例如含碳保护性外涂层。

3. 发明授权

US06759149B1 Laminated medium with antiferromagnetic stabilization layers 失效
标题翻译：具有反铁磁稳定层的层压介质
公开(公告)号：US06759149B1
公开(公告)日：2004-07-06
申请号：US09906835
申请日：2001-07-18
申请人： Qixu Chen , Zhong Wu , Rajiv Y. Ranjan
发明人： Qixu Chen , Zhong Wu , Rajiv Y. Ranjan
IPC分类号： G11B566
CPC分类号： G11B5/732 , G11B5/656 , G11B5/66 , G11B5/7325 , Y10S428/90 , Y10T428/265
摘要： Laminated magnetic recording medium with two Co-containing layers separated by a non-magnetic interlayer is stablished by Ru-containing layers between the recording layers and Co-containing stablization layers through antiferromagnetic coupling.
摘要翻译：通过非磁性中间层分离的具有两个含Co层的层叠磁记录介质通过反铁磁耦合在记录层和含Co稳定层之间的含Ru层保持稳定。

4. 发明授权

US06641936B1 Magnetic media with high Cr content, non-magnetic CoCrPt intermediate layers 失效
标题翻译：具有高Cr含量的磁性介质，非磁性CoCrPt中间层
公开(公告)号：US06641936B1
公开(公告)日：2003-11-04
申请号：US10020847
申请日：2001-12-18
申请人： Qixu Chen , Shanghsien Rou , Samuel D. Harkness, IV , Rajiv Yadav Ranjan
发明人： Qixu Chen , Shanghsien Rou , Samuel D. Harkness, IV , Rajiv Yadav Ranjan
IPC分类号： G11B566
CPC分类号： G11B5/732 , G11B5/656 , G11B5/7325 , G11B5/851 , Y10S428/90 , Y10T428/12465 , Y10T428/12854 , Y10T428/265
摘要： A magnetic recording medium comprises, in overlying sequence from a surface of a non-magnetic substrate: at least one Cr-containing or B2-structured underlayer; a substantially non-magnetic CoCrPt alloy intermediate layer; and at least one CoCrPtB ferromagnetic alloy recording layer; wherein the intermediate layer of substantially non-magnetic CoCrPt alloy has a composition which facilitates Co (11.0) or (10.0) crystallographic orientation of the at least one CoCrPtB ferromagnetic alloy recording layer.
摘要翻译：磁记录介质以非磁性基板的表面叠层：至少一个含Cr或B2结构的底层;基本上非磁性的CoCrPt合金中间层; 和至少一个CoCrPtB铁磁合金记录层;其中基本上非磁性的CoCrPt合金的中间层具有促进至少一种CoCrPtB铁磁性合金记录层的Co（11.0）或（10.0）晶体取向的组成。

5. 发明授权

US07235314B2 Inter layers for perpendicular recording media 有权
标题翻译：用于垂直记录介质的层间
公开(公告)号：US07235314B2
公开(公告)日：2007-06-26
申请号：US10797111
申请日：2004-03-11
申请人： Qixu Chen , Chung-Hee Chang , Li-Lien Lee , Samuel D. Harkness, IV
发明人： Qixu Chen , Chung-Hee Chang , Li-Lien Lee , Samuel D. Harkness, IV
IPC分类号： G11B5/66 , G11B5/70
CPC分类号： G11B5/732 , G11B5/65 , G11B5/667 , G11B5/7325
摘要： A magnetic recording medium, the order of layers in which is the substrate, the soft underlayer, the seedlayer, the 1st RuCrx-containing interlayer, the 2nd RuCrx-containing interlayer and the magnetic recording layer with preferably a oxides or nitrides-containing magnetic layer comprising grains, is disclosed. High-chromium ruthenium-chromium alloy used as inter layers significantly enhances coercivity and SMNR preferably due to the improved lattice match between RuCr inter layers and CoPt-based magnetic recording layers, and the surface energy of RuCr layers contributes to the performance improvement with the high-chromium addition into Ru inter layers.
摘要翻译：磁记录介质，层的顺序为衬底，软底层，种子层，含有CrCrNi x的中间层，2层，并且具有优选含有包含晶粒的含氧化物或含氮化物的磁性层的磁记录层被公开。用作层间的高铬钌 - 铬合金显着提高了矫顽力和SMNR，这主要是由于RuCr层间和CoPt基磁记录层之间的晶格匹配得到改善，RuCr层的表面能有助于提高性能 - 铬添加到Ru层间。

6. 发明授权

US6132863A Magnetic recording medium with grain size control layer 失效
标题翻译：具有晶粒尺寸控制层的磁记录介质
公开(公告)号：US6132863A
公开(公告)日：2000-10-17
申请号：US161427
申请日：1998-09-24
申请人： Xing Song , Qixu Chen , Charles Leu , Rajiv Y. Ranjan
发明人： Xing Song , Qixu Chen , Charles Leu , Rajiv Y. Ranjan
IPC分类号： G11B5/73 , G11B5/66
CPC分类号： G11B5/7325 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： Simultaneous crystallographic orientation and grain size refinement of the magnetic layer are achieved by depositing a grain size control layer on a underlayer. Embodiments include depositing a CrV grain size control layer on a Cr underlayer at thickness ratio of underlayer to grain size control layer of about 0.5 to about 2. Magnetic layers having a grain size of about 100 .ANG. to about 250 .ANG., e.g. at 180 .ANG. to about 220 .ANG., are achieved.
摘要翻译：通过在底层上沉积晶粒尺寸控制层来实现磁性层的同时晶体取向和晶粒尺寸细化。实施方案包括将CrV晶粒尺寸控制层沉积在Cr底层上，其底层与晶粒尺寸控制层的厚度比为约0.5至约2.具有约100至约250范围内的晶粒尺寸的磁性层。在180 ANGSTROM到约220 ANGSTROM。

7. 发明授权

US06150016A High coercivity magnetic recording medium comprising a thin CoCrTa intermediate layer 有权
标题翻译：包含薄CoCrTa中间层的高矫顽力磁记录介质
公开(公告)号：US06150016A
公开(公告)日：2000-11-21
申请号：US188681
申请日：1998-11-10
申请人： Xing Song , Qixu Chen , Charles Leu , Rajiv Y. Ranjan
发明人： Xing Song , Qixu Chen , Charles Leu , Rajiv Y. Ranjan
IPC分类号： G11B5/66 , G11B5/851
CPC分类号： G11B5/851 , G11B5/66 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A high areal density magnetic recording medium exhibiting high remanent coercivity and high coercivity squareness is formed with a thin CoCrTa intermediate layer to provide appropriate crystalline orientation and surface morphology for nucleation and growth of a magnetic layer thereon. The present invention also enables the use of lower substrate heating temperatures during deposition. Embodiments include depositing an intermediate Co alloy layer comprising about 10 up to about 15 atomic % Cr and about 1 to about 6 atomic % Ta at a thickness of about 1.5 to about 150 .ANG..
摘要翻译：利用薄的CoCrTa中间层形成表现出高剩磁矫顽力和高矫顽力矩形度的高密度磁记录介质，为其上的磁性层的成核和生长提供适当的晶体取向和表面形态。本发明还能够在沉积期间使用较低的基板加热温度。实施方案包括沉积包含约10至约15原子％Cr和约1至约6原子％Ta的中间Co合金层，厚度为约1.5至约150埃。

8. 发明授权

US06596419B1 Medium with a seed layer and a B2-structured underlayer 失效
标题翻译：具有种子层和B2结构的底层的培养基
公开(公告)号：US06596419B1
公开(公告)日：2003-07-22
申请号：US09960538
申请日：2001-09-24
申请人： Qixu Chen , Li-Lien Lee , Rajiv Y. Ranjan
发明人： Qixu Chen , Li-Lien Lee , Rajiv Y. Ranjan
IPC分类号： G11B566
CPC分类号： G11B5/732 , G11B5/7325 , Y10S428/90 , Y10T428/12465 , Y10T428/12854 , Y10T428/265
摘要： A bi-crystal magnetic recording media, i.e., media with Cr(200) and Co(11.0) orientations, comprising non-metallic substrates, CrTi or NiPOx seed layers, B2-structured CoTi first underlayers, Cr-alloy second underlayers, and Co-alloy magnetic layers have high coercivity, high SMNR and high areal recording density.
摘要翻译：双晶磁记录介质，即具有Cr（200）和Co（11.0）取向的介质，包括非金属基底，CrTi或NiPOx种子层，B2结构的CoTi第一底层，Cr合金第二底层和Co 合金磁性层具有高矫顽力，高SMNR和高面积记录密度。

9. 发明授权

US06348276B1 Magnetic recording media with a surface-oxidized nial sub-seedlayer 失效
标题翻译：具有表面氧化的Nial子种子层的磁记录介质
公开(公告)号：US06348276B1
公开(公告)日：2002-02-19
申请号：US09382581
申请日：1999-08-25
申请人： Qixu Chen , Zhong Wu , Samuel Dacke Harkness, IV , Charles Leu , Rajiv Yadav Ranjan
发明人： Qixu Chen , Zhong Wu , Samuel Dacke Harkness, IV , Charles Leu , Rajiv Yadav Ranjan
IPC分类号： G11B566
CPC分类号： G11B5/732 , C23C14/025 , G11B5/66 , G11B5/7325 , G11B5/8404
摘要： Magnetic recording media with high coercivity and low noise, suitable for high density longitudinal recording, are formed with a surface oxidized sub-seedlayer between a non-magnetic substrate and seedlayer. Embodiments include depositing a NiAl sub-seedlayer on a glass or glass-ceramic substrate, oxidizing the surface of the NiAl sub-seedlayer, and then sequentially depositing a NiAl seedlayer, Cr or Cr alloy underlayer, e.g., CrMo, an optional intermediate CoCrTa alloy layer, a magnetic layer, e.g., a Co-alloy magnetic layer, and a protective overcoat, e.g., a carbon-containing protective overcoat.
摘要翻译：在非磁性基材和籽晶层之间形成表面氧化亚子层，适用于高密度纵向记录的具有高矫顽力和低噪声的磁记录介质。实施例包括在玻璃或玻璃陶瓷基片上沉积NiAl亚子层，氧化NiAl亚子层的表面，然后依次沉积NiAl种子层，Cr或Cr合金底层，例如CrMo，任选的中间CoCrTa合金层，磁性层，例如Co合金磁性层和保护性外涂层，例如含碳保护性外涂层。

10. 发明申请

US20100177439A1 PERPENDICULAR MEDIA WITH REDUCED SIDE TRACK ERASURE 有权
标题翻译：具有减少侧面跟踪的PERPENDICULAR MEDIA
公开(公告)号：US20100177439A1
公开(公告)日：2010-07-15
申请号：US12353229
申请日：2009-01-13
申请人： Kaizhong Gao , Qixu Chen , Chung-Hee Chang , Thomas Patrick Nolan
发明人： Kaizhong Gao , Qixu Chen , Chung-Hee Chang , Thomas Patrick Nolan
IPC分类号： G11B5/82
CPC分类号： G11B5/82 , G11B5/667
摘要： A media for perpendicular recording and a method of creating the media is provided. The media includes a hard recording layer and a soft underlayer (SUL). The SUL is composed of at least two anti-ferromagnetically coupled (AFC) sub-underlayers. The sub-underlayers respond to a magnetic field established during dynamic reversal with respective magnetic fields. The sub-underlayers are formed and disposed to differ in one or more magnetic moment, anisotropy, and thickness, so that their respective magnetic fields constructively interfere in one or more points in the hard recording layer, thereby reducing a total SUL magnetic field response to the dynamic reversal field approximately to zero at one or more points in the hard recording layer, which reduces side track erasure.
摘要翻译：提供了用于垂直记录的介质和创建介质的方法。介质包括硬记录层和软底层（SUL）。 SUL由至少两个反铁磁耦合（AFC）子底层组成。副底层响应于用相应的磁场在动态反转期间建立的磁场。亚底层被形成和设置为在一个或多个磁矩，各向异性和厚度上不同，使得它们各自的磁场建构性地干扰硬记录层中的一个或多个点，从而减少总SUL磁场响应在硬记录层中的一个或多个点处的动态反转场大致为零，这减少了侧轨道擦除。

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