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1.发明授权公开(公告)号：US08512100B2
公开(公告)日：2013-08-20
申请号：US12488223
申请日：2009-06-19
申请人： Ryuji Sakaguchi , Kazuya Niwa
发明人： Ryuji Sakaguchi , Kazuya Niwa
摘要： There are provided an abrasive tape capable of suppressing contamination of a magnetic disk due to shattered abrasive particles and smoothing the surface of the magnetic disk; a method for producing an abrasive tape; and a varnishing process. An abrasive tape 1 produced according to the method for producing an abrasive tape of the invention is used in a process for varnishing a magnetic disk and produced according to a process for preparing a slurry by kneading and dispersing abrasive particles 5 and a binding agent 6; a process for forming a coating film by applying the slurry on a support 2; a process for forming an abrasive particle layer 3 by hardening the coating film; and a process for forming a coating layer 4 on the surface of the abrasive particle layer 3.
摘要翻译： 提供了能够抑制由于粉碎的磨粒引起的磁盘的污染并使磁盘的表面平滑的砂带; 砂带的制造方法; 和上漆过程。 根据本发明的砂带的制造方法制造的砂带1用于通过捏合和分散磨料颗粒5和粘合剂6而根据制备浆料的方法来制造磁盘的上漆方法; 通过将浆料涂布在载体2上形成涂膜的方法; 通过使涂膜硬化形成磨粒颗粒层3的方法; 以及在磨粒3的表面形成被覆层4的工序。
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2.发明申请公开(公告)号：US20100003900A1
公开(公告)日：2010-01-07
申请号：US12488223
申请日：2009-06-19
申请人： Ryuji Sakaguchi , Kazuya Niwa
发明人： Ryuji Sakaguchi , Kazuya Niwa
摘要： There are provided an abrasive tape capable of suppressing contamination of a magnetic disk due to shattered abrasive particles and smoothing the surface of the magnetic disk; a method for producing an abrasive tape; and a varnishing process. An abrasive tape 1 produced according to the method for producing an abrasive tape of the invention is used in a process for varnishing a magnetic disk and produced according to a process for preparing a slurry by kneading and dispersing abrasive particles 5 and a binding agent 6; a process for forming a coating film by applying the slurry on a support 2; a process for forming an abrasive particle layer 3 by hardening the coating film; and a process for forming a coating layer 4 on the surface of the abrasive particle layer 3.
摘要翻译： 提供了能够抑制由于粉碎的磨粒引起的磁盘的污染并使磁盘的表面平滑的砂带; 砂带的制造方法; 和上漆过程。 根据本发明的砂带的制造方法制造的砂带1用于通过捏合和分散磨料颗粒5和粘合剂6而根据制备浆料的方法来制造磁盘的上漆方法; 通过将浆料涂布在载体2上形成涂膜的方法; 通过使涂膜硬化形成磨粒颗粒层3的方法; 以及在磨粒3的表面形成被覆层4的工序。
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3.发明申请MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING SAME, AND MAGNETIC RECORDING REPRODUCING APPARATUS USING THE MAGNETIC RECORDING MEDIUM 审中-公开磁记录介质，其制造方法以及使用磁记录介质的磁记录重现装置公开(公告)号：US20100079911A1
公开(公告)日：2010-04-01
申请号：US12597699
申请日：2008-04-28
摘要： A perpendicular magnetic recording medium is provided, which has a backing layer, a primer layer, an intermediate layer and at least one perpendicular magnetic recording layer, and is characterized in that the perpendicular magnetic recording layer contains Co and Cr, and at least one of the perpendicular magnetic recording layer or layers has a granular structure comprising ferromagnetic crystal grains and grain boundaries comprised of non-magnetic tungsten oxide. The perpendicular magnetic recording layer may be a double-layered structure comprising the tungsten oxide grain boundary-containing layer and a Cr oxide, Si oxide, Ta oxide or Ti oxide grain boundary-containing layer formed on the tungsten oxide grain boundary-containing layer. The perpendicular magnetic recording medium exhibits good perpendicular orientation and has ferromagnetic crystal grains with extremely small grain size, and thus, is superior in high recording density characteristic.
摘要翻译： 提供了一种具有背衬层，底漆层，中间层和至少一个垂直磁记录层的垂直磁记录介质，其特征在于垂直磁记录层含有Co和Cr，并且其中至少一个 垂直磁记录层具有包含铁磁晶粒和由非磁性氧化钨构成的晶界的粒状结构。 垂直磁记录层可以是包含形成在氧化钨晶界含有层上的氧化钨晶界层和在氧化钨晶界含有层上形成的Cr氧化物，氧化硅，氧化物或氧化钛晶界的层的双层结构。 垂直磁记录介质具有良好的垂直取向，并且具有极小晶粒尺寸的铁磁晶粒，因此具有优异的高记录密度特性。
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4.发明授权公开(公告)号：US08968484B2
公开(公告)日：2015-03-03
申请号：US13210884
申请日：2011-08-16
申请人： Ryuji Sakaguchi , Ryo Tanaka , Norio Oshima
发明人： Ryuji Sakaguchi , Ryo Tanaka , Norio Oshima
CPC分类号： G11B5/8404
摘要： Provided is a method of manufacturing a magnetic recording mediums comprising employing a lifting and drying device for cleaning substrates by immersing one or more disk-like substrates with a central hole into a cleaning liquid disposed in a cleaning tank and lifting and drying the substrates, the lifting and drying device including: a hanger mechanism that is inserted through the central hole of the substrates and supports a plurality of the substrates while being hung thereon; an elevation mechanism that elevates the hanger mechanism between a position where the substrates are immersed into the cleaning liquid inside the cleaning tank and a position where the substrates are lifted from the cleaning tank; and an ejection mechanism that is disposed in the cleaning tank and ejects the cleaning liquid from the downside of the hanger mechanism toward the substrate.
摘要翻译： 提供了一种制造磁记录介质的方法，包括采用用于清洁基板的提升和干燥装置，将一个或多个具有中心孔的盘状基板浸入设置在清洗槽中的清洗液体中并提升和干燥基板， 提升和干燥装置，包括：吊架机构，其穿过基板的中心孔插入并支撑多个基板; 提升机构，其将所述基板浸入到所述清洗槽内的清洗液中的位置和所述基板从所述清洗槽提升的位置之间提升所述悬挂机构; 以及排出机构，其设置在所述清洗槽中，并且将所述清洗液从所述衣架机构的下侧朝向所述基板排出。
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5.发明申请公开(公告)号：US20050121839A1
公开(公告)日：2005-06-09
申请号：US10953572
申请日：2004-09-30
CPC分类号： G11B5/7315 , G11B5/7325 , G11B5/82 , G11B5/8404 , Y10T428/12993
摘要： A process for producing a magnetic recording medium, which process comprises a texturing step for forming texture grooves having a line density of 7,500 lines/mm or more on the surface of a non-metallic substrate, and a step for forming an orientation-determining film, a non-magnetic undercoat layer, and a magnetic layer on the non-metallic substrate.
摘要翻译： 一种制造磁记录介质的方法，该方法包括在非金属基材的表面上形成线密度为7500线/ mm以上的纹理凹槽的纹理化步骤，以及用于形成取向决定膜的步骤 ，非磁性底涂层和非金属基材上的磁性层。
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公开(公告)号：US06468602B2
公开(公告)日：2002-10-22
申请号：US09944178
申请日：2001-09-04
申请人： Ryuji Sakaguchi , Hiroshi Sakai , Mikio Suzuki , Kazunori Ohnami
发明人： Ryuji Sakaguchi , Hiroshi Sakai , Mikio Suzuki , Kazunori Ohnami
IPC分类号： H05H102
CPC分类号： G11B5/85 , C23C16/26 , G11B5/72 , G11B5/725 , G11B5/8408
摘要： The present invention provides a method for manufacturing a magnetic recording medium comprising the steps of forming a carbon protective film onto a disc, the non-magnetic substrate of which is layered with a non-magnetic base film and magnetic film, using a reactant gas containing carbon atoms as a starting material, according to a plasma CVD method, wherein a mixed gas of hydrocarbon and hydrogen, in which the mixing ratio of hydrocarbon to hydrogen is in the range of 2 to 1˜1 to 100 by volume, is used as a reactant gas, during bias applying to said disc. In addition, the present invention provides a magnetic recording medium comprising a carbon protective film formed onto a disc, the non-magnetic substrate of which is layered with a non-magnetic base film and magnetic film, wherein said carbon protective film is formed according to a plasma CVD method, while applying bias.
摘要翻译： 本发明提供一种制造磁记录介质的方法，包括以下步骤：在非磁性基板上用非磁性基膜和磁性薄膜层叠形成碳保护膜，使用含有 碳原子作为起始原料，根据等离子体CVD法，其中烃与氢的混合比在烃与氢的混合比在2至1至1至100的范围内的混合气体用作 在施加到所述盘的偏压期间反应气体。 此外，本发明提供一种磁记录介质，其包含形成在盘上的碳保护膜，其非磁性基板与非磁性基膜和磁性膜层叠，其中所述碳保护膜根据 等离子体CVD法，同时施加偏压。
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7.发明授权Propylene block copolymer, process for producing the same, and resin composition comprising the same 失效丙烯嵌段共聚物，其制造方法和含有它们的树脂组合物
公开(公告)号：US5684099A
公开(公告)日：1997-11-04
申请号：US524627
申请日：1995-09-07
IPC分类号： C08F4/06 , C08F4/64 , C08F297/08
CPC分类号： C08F297/083
摘要： A propylene block copolymer comprising: (a) a propylene homopolymer part having (i) an insoluble amount on xylene extraction at 25.degree. C. of 99.0% by weight or more; (ii) an isotactic pentad fraction of 98.0% or more; (iii) an isotactic average chain length of 500 or more; and (iv) a total amount of fractions having an isotactic average chain length of 800 or more obtained in a column chromatographic separation of 10% by weight or more, and (b) a copolymer part comprising propylene and at least one of ethylene and an .alpha.-olefin having from 4 to 12 carbon atoms, the proportion of the propylene homopolymer part (a) being from 50 to 97% by weight based on the total amount of the propylene homopolymer part (a) and the copolymer part (b), and the proportion of the copolymer part (b) being from 3 to 50% by weight based on the total amount of the propylene homopolymer part (a) and the copolymer part (b).
摘要翻译： 丙烯嵌段共聚物，其包含：（a）丙烯均聚物部分，其具有（i）在25℃下二甲苯萃取的不溶量为99.0重量％以上; （ii）全同立构五单元组分数为98.0％以上; （iii）全同立构平均链长为500以上; 和（iv）在柱色谱分离中获得的全同立构平均链长为800以上的馏分的总量为10重量％以上，（b）包含丙烯与乙烯和 基于丙烯均聚物部分（a）和共聚物部分（b）的总量，丙烯均聚物部分（a）的比例为50至97重量％，具有4至12个碳原子的α-烯烃， 共聚物部分（b）的比例相对于丙烯均聚物部分（a）和共聚物部分（b）的总量为3〜50重量％。
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公开(公告)号：US20120118322A1
公开(公告)日：2012-05-17
申请号：US13320400
申请日：2010-05-14
申请人： Ryuji Sakaguchi , Norio Oshima , Zhipeng Wang , Ryo Tanaka
发明人： Ryuji Sakaguchi , Norio Oshima , Zhipeng Wang , Ryo Tanaka
CPC分类号： G11B5/8404 , B08B3/102 , B08B3/12 , H01L21/67057
摘要： Disclosed are a flow-through washing method and a flow-through washing apparatus which efficiently remove dust adhering to the surface of a substrate and prevent dust from adhering to the surface of the substrate again after washing. The flow-through washing method runs washing liquid (L) inside a washing tank (2) in the lateral direction, and applies an ultrasonic vibration to the washing liquid (L) in a state in which an object (W) to be washed is immersed in this washing liquid (L), whilst washing this object (W). By regulating the flow rate of the washing liquid (L) flowing in any of the feed ports (3) and/or discharge ports (5) of a plurality of feed ports (3) which feed the washing liquid (L) to the washing tank (2) and plurality of discharge ports (5) which discharge washing liquid (L) from the washing tank (2), the washing liquid (L) inside the washing tank (2) can be set so as to run in a laminar flow state.
摘要翻译： 公开了一种流通清洗方法和流通式洗涤装置，其有效地去除附着在基材表面上的灰尘，并且在洗涤后再次防止灰尘附着在基材表面上。 流通式洗涤方法在洗涤槽（2）内沿横向运行洗涤液（L），并且在洗涤液体（W）被洗涤的物品（W）为 浸入该清洗液（L）中，同时洗涤该物体（W）。 通过调节流入洗涤液（L）的多个供给口（3）的供给口（3）和/或排出口（5）中的任一个的洗涤液（L）的流量， 罐（2）和从洗涤槽（2）排出洗涤液（L）的多个排出口（5），洗涤槽（2）内部的洗涤液（L）可以设置成在层流 流动状态。
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9.发明申请公开(公告)号：US20100247961A1
公开(公告)日：2010-09-30
申请号：US12525943
申请日：2008-01-16
IPC分类号： G11B5/33
CPC分类号： G11B5/8404 , G11B5/7325
摘要： In a perpendicular magnetic recording medium having at least a soft magnetic back layer, an underlayer, an intermediate layer and a perpendicular magnetic recording layer on a nonmagnetic substrate, at least one layer in the intermediate layer contains Re as a main component element and contains, as a second main component element, an element having an hcp structure or an element having a bcc structure. The concentration of Re as the main component element of the intermediate layer is within the range from 55 to 99.5 atomic percent. The second component element is Co or Cr.
摘要翻译： 在非磁性基板上至少具有软磁性背层，底层，中间层和垂直磁记录层的垂直磁记录介质中，中间层中的至少一层含有Re作为主要成分元素， 作为第二主要元件元件，具有hcp结构的元件或具有bcc结构的元件。 作为中间层的主要成分的Re的浓度在55〜99.5原子％的范围内。 第二组分元素是Co或Cr。
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10.发明申请公开(公告)号：US20100136370A1
公开(公告)日：2010-06-03
申请号：US12530423
申请日：2008-02-19
IPC分类号： G11B5/33
CPC分类号： G11B5/7325 , Y10T428/11
摘要： The present invention provides a magnetic recording medium capable of reducing the diameter of particles of a perpendicular magnetic recording layer and obtaining a high perpendicular orientation to enable information to be recorded or reproduced at a high density, a method of manufacturing the same, and a magnetic recording/reproducing apparatus. A perpendicular magnetic recording medium includes a non-magnetic substrate; and at least a soft magnetic layer, an underlayer, an intermediate layer, and a perpendicular magnetic recording layer that are formed on the non-magnetic substrate in this order. The underlayer is a (111) crystal orientation layer having an fcc structure, and the intermediate layer includes a (110) crystal orientation layer having a bcc structure and a (002) crystal orientation layer having an hcp structure in this order. The (110) crystal orientation layer having the bcc structure includes 60 at % or more of Cr.
摘要翻译： 本发明提供一种磁记录介质，其能够减小垂直磁记录层的颗粒的直径并获得高垂直取向以使信息以高密度记录或再现，其制造方法和磁性 记录/再现装置。 垂直磁记录介质包括非磁性基片; 以及至少形成在非磁性基板上的软磁性层，底层，中间层和垂直磁记录层。 底层是具有fcc结构的（111）晶体取向层，中间层包括具有bcc结构的（110）晶体取向层和具有hcp结构的（002）晶体取向层。 具有bcc结构的（110）结晶取向层包含60原子％以上的Cr。
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