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    Magnetic recording medium and method of producing the same
    1.
    发明授权
    Magnetic recording medium and method of producing the same 有权
    磁记录介质及其制造方法

    公开(公告)号：US06316062B1

    公开(公告)日：2001-11-13

    申请号：US09508836

    申请日：2000-03-17

    申请人： Ryuji Sakaguchi ,  Kazuo Kobayashi ,  Hiroshi Sakai ,  Mikio Suzuki ,  Kenichi Yoneyama ,  Kazunori Ohnami

    发明人： Ryuji Sakaguchi ,  Kazuo Kobayashi ,  Hiroshi Sakai ,  Mikio Suzuki ,  Kenichi Yoneyama ,  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。

    Method of manufacturing a magnetic recording medium
    2.
    发明授权
    Method of manufacturing a magnetic recording medium 有权
    制造磁记录介质的方法

    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。

    Process of producing a magnetic recording medium
    3.
    发明授权
    Process of producing a magnetic recording medium 失效
    制造磁记录介质的方法

    公开(公告)号：US06582758B2

    公开(公告)日：2003-06-24

    申请号：US09810193

    申请日：2001-03-19

    申请人： Akira Sakawaki ,  Masato Kokubu ,  Ryuji Sakaguchi ,  Hiroshi Sakai

    发明人： Akira Sakawaki ,  Masato Kokubu ,  Ryuji Sakaguchi ,  Hiroshi Sakai

    IPC分类号： B05D512

    CPC分类号： G11B5/8404 ,  G11B5/851 ,  Y10T428/12944 ,  Y10T428/24355 ,  Y10T428/265

    摘要： An object of the present invention is to provide a process for easily producing a magnetic recording medium exhibiting excellent magnetic characteristics. In the present invention, an orientation-determining film is formed on a non-metallic substrate which has undergone texturing, the orientation-determining film is subjected to oxidation or nitridation, and a non-magnetic undercoat film and a magnetic film are formed on the film.

    摘要翻译： 本发明的目的是提供一种易于制造表现出优异的磁特性的磁记录介质的方法。 在本发明中，在经过纹理化的非金属基材上形成取向决定膜，取向决定膜进行氧化或氮化，在该金属基材上形成非磁性底涂膜和磁性膜 电影。

    MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING SAME, AND MAGNETIC RECORDING REPRODUCING APPARATUS USING THE MAGNETIC RECORDING MEDIUM
    5.
    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

    申请人： Ryuji Sakaguchi ,  Gouhei Kurokawa ,  Yuzo Sasaki ,  Tatsu Komatsuda ,  Amarendra Singh

    发明人： Ryuji Sakaguchi ,  Gouhei Kurokawa ,  Yuzo Sasaki ,  Tatsu Komatsuda ,  Amarendra Singh

    IPC分类号： G11B5/127 ,  G11B5/66 ,  G11B5/667 ,  B05D5/12

    CPC分类号： G11B5/65 ,  G11B5/66

    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。

    Lifting and drying device and method of manufacturing magnetic recording medium substrate or magnetic recording medium using the same
    6.
    发明授权
    Lifting and drying device and method of manufacturing magnetic recording medium substrate or magnetic recording medium using the same 有权
    提升干燥装置及使用其的磁记录介质基板或磁记录介质的制造方法

    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

    IPC分类号： B08B1/02 ,  G11B5/84

    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。

    Propylene block copolymer, process for producing the same, and resin composition comprising the same
    8.
    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

    申请人： Kazuyuki Watanabe ,  Hisayoshi Yanagihara ,  Ryuji Sakaguchi

    发明人： Kazuyuki Watanabe ,  Hisayoshi Yanagihara ,  Ryuji Sakaguchi

    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％。

    FLOW-THROUGH WASHING METHOD AND FLOW-THROUGH WASHING APPARATUS
    9.
    发明申请
    FLOW-THROUGH WASHING METHOD AND FLOW-THROUGH WASHING APPARATUS 审中-公开
    流通式洗涤方法和流动洗涤装置

    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

    IPC分类号： B08B7/04 ,  B08B7/02 ,  B08B3/02

    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。