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21. 发明授权

US6010795A Magnetic recording medium comprising a nickel aluminum or iron aluminum underlayer and chromium containing intermediate layer each having (200) dominant crystalographic orientation 失效
标题翻译：磁记录介质包括镍铝或铁铝底层和含铬中间层，每层具有（200）显性结晶取向
公开(公告)号：US6010795A
公开(公告)日：2000-01-04
申请号：US945084
申请日：1997-10-17
申请人： Qixu Chen , Jyh-Kau Chang , Charles Leu , Ga-Lane Chen
发明人： Qixu Chen , Jyh-Kau Chang , Charles Leu , Ga-Lane Chen
IPC分类号： G11B5/73 , G11B5/84 , G11B5/704
CPC分类号： G11B5/732 , G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10T428/12465 , Y10T428/12854
摘要： A magnetic recording medium is formed by depositing a Cr-containing sub-underlayer on a surface oxidized seed layer, such as NiP, with direct current (DC) magnetron sputtering, depositing a NiAl or FeAl underlayer on the sub-underlayer, and depositing a Cr-containing intermediate layer on the NiAl or FeAl underlayer. The medium features high coercivity, low noise, and (200)-dominant underlayer crystallographic orientation, even with sub-underlayer deposition at temperatures as low as about 25.degree. C. The medium is suitable for high density longitudinal magnetic recording.
摘要翻译： PCT No.PCT / US97 / 02169 Sec。 371日期1997年10月17日第 102（e）日期1997年10月17日PCT 1997年2月26日PCT PCT。第WO98 / 16923号公报日期：1998年4月23日磁性记录介质是通过在直流（DC）磁控溅射上沉积NiAl或FeAl底层的表面氧化种子层（例如NiP）上沉积含Cr的亚底层形成的，底层，并在NiAl或FeAl底层上沉积含Cr的中间层。该介质具有高矫顽力，低噪声和（200）优势的底层结晶取向，即使在低至约25℃的低底层沉积下也是如此。该介质适用于高密度纵向磁记录。

22. 发明授权

US08338005B2 Recording layer and multilayered soft underlayer 有权
标题翻译：记录层和多层软底层
公开(公告)号：US08338005B2
公开(公告)日：2012-12-25
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： G11B5/667
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在硬记录层中的一个或多个点上建构性地干扰，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。

23. 发明授权

US07247396B2 Highly oriented perpendicular magnetic recording media 有权
标题翻译：高取向垂直磁记录介质
公开(公告)号：US07247396B2
公开(公告)日：2007-07-24
申请号：US10764602
申请日：2004-01-27
申请人： Thomas Patrick Nolan , Erol Girt , Chunghee Chang , Qixu Chen , Li-Lien Lee
发明人： Thomas Patrick Nolan , Erol Girt , Chunghee Chang , Qixu Chen , Li-Lien Lee
IPC分类号： G11B5/738
CPC分类号： G11B5/667 , G11B5/656 , G11B5/7325 , Y10T428/12778 , Y10T428/12812 , Y10T428/12833 , Y10T428/12868 , Y10T428/12875 , Y10T428/12882 , Y10T428/12889 , Y10T428/12896 , Y10T428/12903 , Y10T428/1291 , Y10T428/12917 , Y10T428/24942 , Y10T428/265
摘要： A perpendicular magnetic recording medium including an interlayer structure for crystallographically orienting a layer of a hexagonal close-packed (hcp) perpendicular magnetic recording material formed thereon, comprising in overlying sequence from a surface of a magnetically soft underlayer: (1) a first crystalline layer of a material having a first lattice parameter and a strong preferred growth orientation; (2) a second crystalline layer of a material having a second lattice parameter and the same strong preferred growth orientation as the first crystalline layer; and (3) a third crystalline layer of an hcp material, having a [0002] lattice parameter similar to or different from that of the second lattice parameter of the second crystalline layer and a strong preferred growth orientation, wherein: the second crystalline layer has a lower interfacial energy with the first crystalline layer and a higher interfacial energy with the third crystalline layer, owing to a lower surface energy of the first crystalline layer and a higher surface energy of the second crystalline layer.
摘要翻译：一种垂直磁记录介质，包括用于晶体取向形成在其上的六方密堆积（hcp）垂直磁记录材料的层的层间结构，其包括从软磁性底层的表面起的顺序：（1）第一结晶层具有第一晶格参数和强优选生长方向的材料; （2）具有第二晶格参数并且与第一晶体层相同的强优选生长取向的材料的第二晶体层; 和（3）hcp材料的第三晶体层，其具有与第二晶体层的第二晶格参数相似或不同的[0002]晶格参数和强的优选生长方向，其中：第二由于第一晶体层的较低的表面能和第二晶体层的更高的表面能，结晶层与第一结晶层具有较低的界面能和与第三晶体层的较高的界面能。

24. 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。

25. 发明授权

US07169488B2 Granular perpendicular media with surface treatment for improved magnetic properties and corrosion resistance 有权
标题翻译：具有表面处理的颗粒垂直介质，用于改善磁性能和耐腐蚀性
公开(公告)号：US07169488B2
公开(公告)日：2007-01-30
申请号：US10705069
申请日：2003-11-10
申请人： Qixu Chen , Tom Nolan , Raj Nagappan Thangaraj , Zhong (Stella) Wu , Samuel Dacke Harkness
发明人： Qixu Chen , Tom Nolan , Raj Nagappan Thangaraj , Zhong (Stella) Wu , Samuel Dacke Harkness
IPC分类号： G11B5/66 , G11B5/70
CPC分类号： G11B5/732 , G11B5/65 , G11B5/667 , G11B5/72 , G11B5/8408 , G11B5/851 , G11B2005/0029
摘要： A granular perpendicular magnetic recording medium having a surface treated magnetic layer comprising an oxidized or nitrogenized boundary layer formed on the surface of the magnetic layer, wherein the magnetic layer comprises granular magnetic regions having oxygen and/or nitrogen-containing grain boundaries. In one embodiment, the granular perpendicular recording medium further comprises a soft magnetic layer below the surface treated granular magnetic layer and a protective overcoat over the surface treated granular magnetic layer. A method of manufacturing a granular perpendicular magnetic recording medium includes depositing a magnetic layer having granular structure over a substrate and subsequently surface treating the granular magnetic layer in an oxygen and/or nitrogen-containing atmosphere to produce an oxidized and/or nitrogenized boundary layer formed on the surface of the granular magnetic layer. The granular perpendicular magnetic recording medium of the present invention exhibits high Hc and SNR while exhibiting improved corrosion resistance and contact start-stop performance.
摘要翻译：一种具有表面处理的磁性层的颗粒状垂直磁记录介质，包括形成在磁性层的表面上的氧化或氮化的边界层，其中磁性层包括具有氧和/或含氮晶界的颗粒状磁性区域。在一个实施例中，粒状垂直记录介质还包括在表面处理的颗粒磁性层下方的软磁性层和在表面处理过的颗粒状磁性层上的保护性外涂层。一种制造粒状垂直磁记录介质的方法包括在衬底上沉积具有粒状结构的磁性层，随后在氧和/或含氮气氛中表面处理粒状磁性层，以形成形成的氧化和/或氮化的边界层在粒状磁性层的表面上。本发明的粒状垂直磁记录介质表现出高的Hc和SNR，同时具有改进的耐腐蚀性和接触起止性能。

26. 发明授权

US06572958B1 Magnetic recording media comprising a silicon carbide corrosion barrier layer and a c-overcoat 失效
标题翻译：磁记录介质包括碳化硅腐蚀阻挡层和c覆盖层
公开(公告)号：US06572958B1
公开(公告)日：2003-06-03
申请号：US09621530
申请日：2000-07-21
申请人： Kueir-Weei Chour , Liji Huang , Jie-Ming Yu , Kuo-Hsing Hwang , Chung Shih , Lin Huang , Charles Leu , Qixu Chen , Rajiv Yadav Ranjan
发明人： Kueir-Weei Chour , Liji Huang , Jie-Ming Yu , Kuo-Hsing Hwang , Chung Shih , Lin Huang , Charles Leu , Qixu Chen , Rajiv Yadav Ranjan
IPC分类号： G11B572
CPC分类号： G11B5/8408 , G11B5/72 , Y10T428/2495 , Y10T428/265
摘要： A magnetic recording medium is provided with a dual layer protective overcoat system comprising a SiC corrosion barrier layer and a carbon-containing protective overcoat thereon. The SiC layer effectively prevents or significantly reduces Co and Ni diffusion to the medium surface. Embodiments include magnetic recording media comprising a SiC corrosion barrier layer over a magnetic layer, an overlying protective layer of amorphous hydrogenated carbon, amorphous nitrogenated carbon or amorphous hydrogen-nitrogenated carbon, and a lubricant topcoat thereon. Embodiments of the present invention further include magnetic recording media comprising Ni—P plated aluminum, Ni-plated glass or non-conductive substrates including glass, glass-ceramic and ceramic materials. Embodiments of the present invention further include a dual protective overcoat system having a combined thickness less than about 100 Å, such as less than about 75 Å, e.g., less than about 50 Å, with the SiC corrosion barrier layer having a thickness ranging from 1 Å to 40 Å.
摘要翻译：磁记录介质设置有双层保护外涂层系统，其包括SiC腐蚀阻挡层和其上的含碳保护外涂层。 SiC层有效地防止或显着减少Co和Ni扩散到介质表面。实施例包括在磁性层上包含SiC腐蚀阻挡层的磁记录介质，无定形氢化碳的上覆保护层，无定形氮化碳或无定形氢化氮，以及其上的润滑剂面涂层。本发明的实施例还包括包含Ni-P镀铝，镀Ni玻璃或包括玻璃，玻璃 - 陶瓷和陶瓷材料的非导电衬底的磁记录介质。本发明的实施方案还包括双重保护外涂层系统，其具有小于约，例如小于约，例如小于约50埃的组合厚度，其中SiC腐蚀阻挡层的厚度范围为1 Å至40Å。

27. 发明授权

US06509083B2 High coercivity magnetic recording medium comprising a sputter textured layer 失效
公开(公告)号：US06509083B2
公开(公告)日：2003-01-21
申请号：US09768357
申请日：2001-01-25
申请人： Xing Song , Ga-Lane Chen , Charles Leu , Qixu Chen
发明人： Xing Song , Ga-Lane Chen , Charles Leu , Qixu Chen
IPC分类号： G11B566
CPC分类号： G11B5/7325 , C23C14/024 , C23C14/185 , C23C14/568 , G11B5/8404 , Y02T50/67 , Y10S428/90 , Y10T428/12465 , Y10T428/12861 , Y10T428/12896 , Y10T428/12903 , Y10T428/24355 , Y10T428/265 , Y10T428/30 , Y10T428/31678
摘要： Reproducible texturing of magnetic recording media is enhanced by sputtering a buffer layer, such as Ni-P, on a nonmagnetic substrate, prior to sputtering a textured bump layer. A magnetic recording medium comprising a sputter textured metal layer and high coercivity is achieved by employing an underlayer, such as NiAl or FeAl, preferably a composite underlayer containing a chromium or chromium-alloy layer and a NiAl layer, on the sputter textured layer. Advantageously, the buffer layer, underlayer, textured bump layer, magnetic layer and carbon overcoat can be sputter deposited in a single apparatus.

28. 发明授权

US5895712A Magnetic recording medium with improved coercivity 失效
标题翻译：具有改善矫顽力的磁记录介质
公开(公告)号：US5895712A
公开(公告)日：1999-04-20
申请号：US712705
申请日：1996-09-12
申请人： Qixu Chen , Ga-Lane Chen
发明人： Qixu Chen , Ga-Lane Chen
IPC分类号： C23C14/56 , G11B5/64 , G11B5/73 , G11B5/84 , G11B5/851 , G11B5/66
CPC分类号： G11B5/7325 , C23C14/568 , G11B5/656 , G11B5/8404 , G11B5/851 , Y10S428/90 , Y10T428/12465 , Y10T428/12639 , Y10T428/12771 , Y10T428/12778 , Y10T428/12812 , Y10T428/12826 , Y10T428/12861 , Y10T428/12931 , Y10T428/265
摘要： The coercivity of a magnetic recording medium is increased without any substantial change in magnetic remanence by depositing a fresh non-magnetic sub-underlayer on an underlayer or composite underlayer comprising a plurality of sub-underlayers, and immediately depositing a magnetic layer on the fresh sub-underlayer. In an embodiment of the present invention, a fresh chromium sub-underlayer having a thickness of about 55 .ANG. to about 135 .ANG. is sputter deposited on a chromium underlayer in the magnetic layer deposition chamber, and a cobalt magnetic layer deposited on and within 1.2 seconds after depositing the fresh sub-underlayer.
摘要翻译：磁性记录介质的矫顽力通过在包含多个亚底层的底层或复合底层上沉积新的非磁性亚底层而增加磁性剩磁的显着变化，并且立即在新鲜的子层上沉积磁性层 -underlayer。在本发明的一个实施方案中，在磁性层沉积室中的铬底层上溅射沉积厚度为约55至约135的新鲜铬亚底层，并在1.2秒内沉积钴磁性层在存储新的子底层之后。

29. 发明授权

US5879783A Low noise magnetic recording medium and method of manufacturing 失效
标题翻译：低噪音磁记录介质及制造方法
公开(公告)号：US5879783A
公开(公告)日：1999-03-09
申请号：US735443
申请日：1997-01-02
申请人： Jyh-Kau Chang , Qixu Chen , Ga-Lane Chen
发明人： Jyh-Kau Chang , Qixu Chen , Ga-Lane Chen
IPC分类号： G11B5/73 , G11B5/84 , G11B5/66
CPC分类号： G11B5/732 , G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10T428/1275 , Y10T428/24355 , Y10T428/265
摘要： A magnetic recording medium exhibiting low medium noise is formed by depositing a seed layer on a glass or a glass-ceramic substrate and oxidizing the deposited seed layer, under controlled conditions to induce controlled surface microroughness. The subsequently sputter deposited underlayer exhibits a fine average grain size, such as less than about 20 nm. The magnetic alloy sputter deposited and epitaxially grown on the underlayer exhibits a fine average grain size, such as less than about 15 nm, and magnetic clusters reduced in size.
摘要翻译：通过在玻璃或玻璃 - 陶瓷基片上沉积种子层并在受控条件下氧化沉积的种子层以形成受控表面微粗糙度，形成表现出低介质噪声的磁记录介质。随后溅射沉积的底层显示出细小的平均晶粒尺寸，例如小于约20nm。溅射沉积并外延生长在底层上的磁性合金表现出细小的平均晶粒尺寸，例如小于约15nm，磁簇尺寸减小。

30. 发明授权

US5830584A Bicrystal cluster magnetic recording medium 失效
标题翻译：双晶簇磁记录介质
公开(公告)号：US5830584A
公开(公告)日：1998-11-03
申请号：US586571
申请日：1996-01-16
申请人： Ga-Lane Chen , Qixu Chen
发明人： Ga-Lane Chen , Qixu Chen
IPC分类号： G11B5/64 , G11B5/73 , G11B5/738 , G11B5/84 , H01F10/08 , H01F10/16 , H01F10/26 , G11B5/66
CPC分类号： G11B5/732 , G11B5/656 , G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10S428/928 , Y10T428/12465 , Y10T428/12819 , Y10T428/12847 , Y10T428/12854 , Y10T428/12944 , Y10T428/24355 , Y10T428/24975 , Y10T428/265 , Y10T428/31678
摘要： A magnetic recording medium having low medium noise and suitable for high density magnetic recording is produced with a bicrystal cluster magnetic layer on a glass or glass-ceramic substrate. An underlayer which is formed with a (200) crystallographic orientation induces the formation of a bicrystal cluster microstructure in a magnetic alloy layer epitaxially grown on the underlayer.
摘要翻译：在玻璃或玻璃陶瓷基板上用双晶簇磁性层制造具有低介质噪声且适用于高密度磁记录的磁记录介质。形成有（200）结晶取向的底层在外底生长在底层上的磁性合金层中形成双晶簇微结构。

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