公开(公告)号：US06916955B2

公开(公告)日：2005-07-12

申请号：US10632723

申请日：2003-07-31

申请人： Qing Dai ,  Paul Haruo Kasai ,  Wing Tsang Tang

发明人： Qing Dai ,  Paul Haruo Kasai ,  Wing Tsang Tang

IPC分类号： C10M107/38 ,  G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  G11B5/725 ,  C07C59/00

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  C10M107/38 ,  G11B5/3106 ,  G11B5/3903 ,  G11B5/40 ,  G11B5/725 ,  G11B2005/3996 ,  Y10T428/30 ,  Y10T428/3154 ,  Y10T428/31544

摘要： A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.

摘要翻译： 提供一种合成含有至少一个羧酸基的全氟化聚醚的金属盐的方法。 所提供的聚合物盐作为抗湿润和防腐蚀剂是有效的。 全氟化聚醚酸的金属盐可用于制备防腐蚀衬底，包括磁记录盘和磁记录头。

公开(公告)号：US20050084621A1

公开(公告)日：2005-04-21

申请号：US10687584

申请日：2003-10-20

申请人： Jianwei Liu ,  Michael Stirniman ,  Jing Gui

发明人： Jianwei Liu ,  Michael Stirniman ,  Jing Gui

IPC分类号： G11B5/725 ,  G11B5/84 ,  H01F1/00

CPC分类号： G11B5/8408 ,  G11B5/725 ,  Y10T428/265

摘要： A magnetic recording medium having a lubricant film containing a non-phase separated additive and a lubricant a base layer, wherein the additive is bonded to the base layer, for better and faster mobility of a lubricant to ensure rapid healing of areas of the medium that have been depleted of the lubricant, and a method of manufacturing thereof, is disclosed.

摘要翻译： 一种具有含有非相分离添加剂的润滑剂膜和基础层的润滑剂的磁记录介质，其中添加剂结合到基底层，以便更好和更快地润滑剂的移动性，以确保介质区域的快速愈合， 已经耗尽了润滑剂，并且公开了其制造方法。

公开(公告)号：US06875492B1

公开(公告)日：2005-04-05

申请号：US10269292

申请日：2002-10-11

申请人： Shahid A. Pirzada ,  Ian L. Sanders ,  Jia-Jay Liu ,  Kenneth E. Johnson

发明人： Shahid A. Pirzada ,  Ian L. Sanders ,  Jia-Jay Liu ,  Kenneth E. Johnson

IPC分类号： G11B5/64 ,  G11B5/72

CPC分类号： G11B5/72 ,  G11B5/656 ,  G11B5/725 ,  Y10T428/24975 ,  Y10T428/30

摘要： Magnetic recording media having a protective carbon overcoat adapted to protect the magnetic recording layer from surface contact events and corrosion. The carbon overcoat includes at least two layers. A first layer is adapted to protect the magnetic recording layer from surface contact events and corrosion. The second layer is disposed on the first layer and is adapted to enhance the bonding of a lubricant to the carbon overcoat and to minimize head degradation. The magnetic recording media of the present invention advantageously enables the use of thin carbon overcoats, enhancing areal density, while maintaining good tribological properties.

摘要翻译： 具有保护性碳覆盖层的磁记录介质，其适于保护磁记录层免受表面接触事件和腐蚀。 碳覆盖层包括至少两层。 第一层适于保护磁记录层免受表面接触事件和腐蚀。 第二层设置在第一层上并且适于增强润滑剂与碳外涂层的结合并且使头部退化最小化。 本发明的磁记录介质有利地能够使用薄碳外涂层，增强面密度，同时保持良好的摩擦学性能。

公开(公告)号：US06861653B2

公开(公告)日：2005-03-01

申请号：US10411114

申请日：2003-04-11

申请人： Jianwei Liu ,  Michael J. Stirniman ,  John S. Bujak

发明人： Jianwei Liu ,  Michael J. Stirniman ,  John S. Bujak

IPC分类号： G21K5/10 ,  B29D11/00

CPC分类号： G11B5/725

摘要： An equipment and method for inline infrared (IR) ultraviolet (UV) irradiation of recording media is disclosed. The components of the equipment include a saddle for holding a recording medium such as a disc, a conveyor that travels the saddle through a tunnel in which one or more IR and UV lamps are positioned to direct IR and UV light on the recording media traveling through the tunnel. The efficacy of the bonding of the lubricant to the recording medium by UV light is substantially enhanced by exposing the recording medium to IR light prior to exposure to UV light.

摘要翻译： 公开了用于记录介质的在线红外（IR）紫外（UV）照射的设备和方法。 设备的部件包括用于保持诸如盘的记录介质的鞍座，通过隧道行进鞍座的输送机，其中定位一个或多个IR和UV灯以将IR和UV光引导到行进的记录介质上 隧道。 通过在暴露于UV光之前将记录介质暴露于IR光，通过UV光将润滑剂粘合到记录介质上的功效大大提高。

公开(公告)号：US20040241380A1

公开(公告)日：2004-12-02

申请号：US10854256

申请日：2004-05-27

申请人： HOYA CORPORATION ,  HOYA MAGNETICS SINGAPORE PTE. LTD.

发明人： Masafumi Ishiyama

IPC分类号： G11B005/72

CPC分类号： G11B5/72 ,  G11B5/725 ,  G11B5/8408

摘要： A magnetic disk includes a substrate on which a nonmagnetic metal layer, a magnetic layer, a carbon-based protection layer, an alcohol-based coupling layer, and a lubrication layer successively formed thereon. The lubrication layer contains a hydroxyl- or a carboxyl-modified compound as a lubricating material. The alcohol-based coupling layer contains, for example, lower alcohol as a main component and is deposited on the carbon-based protection layer, for example, by vapor deposition. The alcohol-based coupling layer may be replaced by a layer containing lower alcohol. The carbon-based protection layer may be deposited by plasma CVD.

摘要翻译： 磁盘包括在其上依次形成有非磁性金属层，磁性层，碳基保护层，醇类结合层和润滑层的基板。 润滑层含有作为润滑材料的羟基或羧基改性化合物。 醇系结合层例如以低级醇为主要成分，例如通过蒸镀法沉积在碳系保护层上。 醇类偶联层可以由含有低级醇的层代替。 碳基保护层可以通过等离子体CVD沉积。

公开(公告)号：US20040206450A1

公开(公告)日：2004-10-21

申请号：US10838469

申请日：2004-05-04

申请人： Fujitsu Limited

发明人： Yuichiro Itai ,  Yoshiharu Kasamatsu

IPC分类号： B05B001/00

CPC分类号： G11B5/725 ,  G11B5/8408

摘要： A method of manufacturing a magnetic recording medium which includes a bonding sub-layer substantially and forms a lubricant layer having its enough width. A method of manufacturing a magnetic recording medium includes the steps of: a) laminating an underlayer, a magnetic layer for recording, and a protection layer of amorphous carbon on a substrate of the magnetic recording medium in turn, and b) repeating a progress to said protection layer of amorphous carbon comprising an application process of applying a lubricant, a subsequent ultraviolet rays treatment process, and a subsequent washing process for removing the lubricant which is not connected to the protection layer of amorphous carbon plural times.

摘要翻译： 一种制造磁记录介质的方法，其包括基本上形成具有足够宽度的润滑剂层的接合子层。 一种制造磁记录介质的方法包括以下步骤：a）依次层叠底层，用于记录的磁性层和非磁性碳保护层在磁记录介质的基板上，以及b）重复进行到 所述无定形碳保护层包括施加润滑剂的应用过程，随后的紫外线处理工艺和随后的洗涤过程，用于多次除去未连接到无定形碳保护层的润滑剂。

公开(公告)号：US06773784B2

公开(公告)日：2004-08-10

申请号：US10364501

申请日：2003-02-12

申请人： Kouji Sonoda ,  Hiroshi Tani ,  Hiroyuki Matsumoto ,  Mitsuhiro Shoda ,  Toshinori Ono

发明人： Kouji Sonoda ,  Hiroshi Tani ,  Hiroyuki Matsumoto ,  Mitsuhiro Shoda ,  Toshinori Ono

IPC分类号： G11B5725

CPC分类号： C03C17/40 ,  G11B5/725 ,  G11B5/732 ,  G11B5/7325 ,  Y10T428/24942 ,  Y10T428/265

摘要： The object of this invention is to provide a magnetic disk which has an excellent durability even with a protective film having a small film thickness of 4 nm or less. The magnetic disk of this invention is a magnetic disk comprising a non-magnetic substrate and, provided thereon, a magnetic metal film, carbon protective film and fluorine-containing lubricant film, wherein the carbon protective film is a DLC film having a film thickness of 4 nm or less and the ratio of infrared absorption intensity resulting from the C—H bond near 2,920 cm−1 determined by FT-IR using ATR to infrared absorption intensity resulting from the C—F bond of the lubricant film is 0.035-0.060.

摘要翻译： 本发明的目的是提供一种即使是具有4nm或更小的薄膜厚度的保护膜也具有优异的耐久性的磁盘。 本发明的磁盘是包含非磁性基片的磁盘，其上设置有磁性金属膜，碳保护膜和含氟润滑剂膜，其中碳保护膜是DLC膜，其膜厚度为 4nm以下，由FT-IR使用ATR测定的CH键附近的2,920cm -1处的红外吸收强度与由润滑剂膜的CF键导致的红外吸收强度的比率为0.035〜0.060。

公开(公告)号：US20040101715A1

公开(公告)日：2004-05-27

申请号：US10714854

申请日：2003-11-18

申请人： SEAGATE TECHNOLOGY LLC

发明人： Michael Stirniman ,  Li-Ping Wang ,  Gary Rauch

IPC分类号： C08F002/48

CPC分类号： G11B5/725 ,  G11B5/8408

摘要： A magnetic recording medium is formed with a distribution of servo-marks in the form of pits or indentations with an attendant reduction in potential corrosion and increased tribology. Embodiments providing a protective overcoat, e.g. containing carbon, over a magnetic recording medium having a servo-patterned substrate; applying a fluoropolyether comprising one or more acrylate groups on the protective overcoat by dip coating the magnetic recording medium in a solution of the fluoropolyether and polymerizing the fluoropolyether by ultraviolet radiation.

公开(公告)号：US20040096675A1

公开(公告)日：2004-05-20

申请号：US10613091

申请日：2003-07-07

申请人： Hitachi, Ltd.

发明人： Hiroshi Tani ,  Hiroyuki Matsumoto ,  Mitsuhiro Shyoda ,  Tomonori Kozaki ,  Takayuki Nakakawaji ,  Yoko Ogawa

IPC分类号： B32B015/04

CPC分类号： G11B5/725 ,  Y10T428/24355 ,  Y10T428/265 ,  Y10T428/30 ,  Y10T428/3154 ,  Y10T428/31678

摘要： The present invention provides a magnetic recording media made possible to improve reliability and durability of the magnetic recording media with an extremely thin overcoat. A magnetic recording media made by forming at least a magnetic coat and an overcoat on a substrate of non-magnetic magnetic disk on which surface a liquid lubricant having a structure of perfluoropolyether is coated, wherein average roughness of overcoat surface Ra is less than 0.8 nm, said overcoat being a diamond-like-carbon with a thickness in a range of 1.5-4.5 nm, and said lubricant on said carbon overcoat containing a lubricant component having a structure represented by chemical formula (1): 1 (where, pnull5-36, qnull4-30, xnull1-5)

摘要翻译： 本发明提供一种磁记录介质，其可以改善具有极薄外涂层的磁记录介质的可靠性和耐久性。 一种磁性记录介质，其通过在非磁性磁盘的基板上形成至少一层磁性涂层和外涂层而形成，其中涂覆有具有全氟聚醚结构的液体润滑剂的表面，其中外涂层表面Ra的平均粗糙度小于0.8nm 所述外涂层为厚度为1.5-4.5nm的类金刚石，所述碳外涂层上的所述润滑剂含有具有由化学式（1）表示的结构的润滑剂组分：（其中p = 5 -36，q = 4-30，x = 1-5）

公开(公告)号：US20040092406A1

公开(公告)日：2004-05-13

申请号：US10620773

申请日：2003-07-17

申请人： FUJI ELECTRIC CO., LTD.

发明人： Yoshihito Osawa ,  Shinji Shirai ,  Masayuki Ishkawa

IPC分类号： C10M15/54 ,  C10M175/00

CPC分类号： C10M175/005 ,  C08G65/007 ,  C08G65/30 ,  C08G65/46 ,  C10M2201/16 ,  C10M2213/062 ,  C10N2240/204 ,  G11B5/725 ,  Y02P20/544

摘要： A method refines a lubricant comprising a compound having a perfluoropolyether structure via supercritical extraction. A lubricant is refined using the method and a magnetic recording medium that utilizes the refined lubricant. The refined lubricant exhibits excellent lubrication performance and long term stability in the magnetic recording medium. In one embodiment of the supercritical extraction, the lubricant contacts an extracting medium of supercritical carbon dioxide under a predetermined condition in a pressure vessel to remove ionic impurities and perfluoropolyether compounds having a weak polarity terminal group contained in the lubricant.

摘要翻译： 一种方法通过超临界萃取来提炼含有具有全氟聚醚结构的化合物的润滑剂。 使用该方法精炼润滑剂和利用精制润滑剂的磁记录介质。 精炼润滑剂在磁记录介质中表现出优异的润滑性能和长期稳定性。 在超临界萃取的一个实施方案中，润滑剂在预定条件下在压力容器中与超临界二氧化碳的萃取介质接触以除去润滑剂中含有的极性极性极弱的离子杂质和全氟聚醚化合物。