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21. 发明专利

JP4600794B2 Method for producing a magnetic recording medium 有权
公开(公告)号：JP4600794B2
公开(公告)日：2010-12-15
申请号：JP2001016257
申请日：2001-01-24
申请人：富士電機デバイステクノロジー株式会社
发明人：誠磯崎
IPC分类号： G11B5/84 , G11B5/725
CPC分类号： G11B5/8408 , G11B5/725

22. 发明专利

JP2010108592A Glass substrate for magnetic disk, and magnetic disk 有权
标题翻译：用于磁盘和磁盘的玻璃基板
公开(公告)号：JP2010108592A
公开(公告)日：2010-05-13
申请号：JP2009228169
申请日：2009-09-30
申请人： Hoya Corp , Hoya株式会社
发明人： EDA SHINJI , ISONO HIDEKI , MAEDA TAKASHI , TSUCHIYA HIROSHI , MARUMO YOSHINORI
IPC分类号： G11B5/73 , C03C19/00 , C03C21/00
CPC分类号： C03C23/009 , C03C19/00 , C03C21/008 , C03C23/0075 , C03C2204/08 , C09G1/02 , G11B5/7315 , G11B5/8404 , G11B5/8408
摘要： PROBLEM TO BE SOLVED: To provide a glass substrate for a magnetic disk which has very few defects existing on a surface in a level of proximity of 0.1 nm in arithmetic average roughness (Ra), and is suitable as a substrate for a magnetic disk of high recording density, and to provide a magnetic disk.
SOLUTION: In the glass substrate for magnetic disk, arithmetic average roughness (Ra) on a main surface of the glass substrate is 0.12 nm or less measured in resolution of 256×256 pixels by 2 μm×2 μm square using an atomic force microscope, and the number of defects of a size of 0.1-0.6 μm in plan view and a depth of 0.5-2 nm detected using a difference of wavelengths between incidence light and return light in sweeping over while irradiating the main surface of the glass substrate with HeNe laser light of wavelength of 632 nm is less than ten per 24 cm
2 .
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：为了提供在算术平均粗糙度（Ra）为0.1nm附近的表面上存在非常少的缺陷的磁盘用玻璃基板，适合作为高记录密度的磁盘，并提供磁盘。解决方案：在用于磁盘的玻璃基板中，玻璃基板的主表面上的算术平均粗糙度（Ra）为0.12nm以下，分辨率为256×256像素×2μm×2μm的正方形，使用原子力显微镜，平面图中尺寸为0.1-0.6μm的缺陷的数量和使用入射光和返回光之间的波长的差异检测的深度为0.5-2nm，同时照射玻璃的主表面波长632nm的HeNe激光的衬底小于每24cm 2 10。版权所有（C）2010，JPO＆INPIT

23. 发明专利

JP2010092531A Method for manufacturing magnetic disk and apparatus for cleaning magnetic disk 审中-公开
标题翻译：用于制造磁盘的方法和用于清洁磁盘的装置
公开(公告)号：JP2010092531A
公开(公告)日：2010-04-22
申请号：JP2008260296
申请日：2008-10-07
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： ENDO NAOTO , SHODA MITSUHIRO , ONO TOSHINORI , MATSUMOTO HIROYUKI , TAKAHASHI FUMIHITO
IPC分类号： G11B5/84
CPC分类号： G11B5/8408
摘要： PROBLEM TO BE SOLVED: To solve the problem that in a process of checking errors of recording and reproduction output signals using a magnetic head for checking after deposition of a multilayer film of a magnetic disk, reproduction output is deteriorated due to accumulated magnetic disks to be checked, an error check pass rate is deteriorated when the reproduction output of the magnetic head for checking is deteriorated, thereby reducing the yield. SOLUTION: After forming a magnetic recording film 1, protective film 6 and lubricant film 7 on a substrate 10, wiping cloth 50 is arranged facing the lubricant film 7. The lubricating film 7 is wiped while rotating the substrate 10 at 3.0-3.5 m/s by pressing a pad 37 having a convexly curved surface in contact with the wiping cloth 50, against the wiping cloth 50 at a loading speed of 12-36 mm/min under a pressure of about 3-9 gf/mm 2 (wiping). Then, a cleaning tape on which polishing abrasive grains are fixed is pressed against the substrate side, and a projection part is removed while rotating the substrate 10 (tape cleaning). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题为了解决在使用磁头进行记录和再现输出信号的错误的处理的过程中，用于在磁盘的多层膜沉积之后检查的再现输出由于累积磁性而劣化的问题要检查的磁盘，当用于检查的磁头的再现输出劣化时，错误检查合格率恶化，从而降低产量。解决方案：在基板10上形成磁记录膜1，保护膜6和润滑膜7之后，将擦拭布50布置成面对润滑剂膜7。在将基板10旋转3.0圈的同时擦拭润滑膜7，通过将具有与擦拭布50接触的凸曲面的垫37按大约3-9gf / mm 2的压力以12-36mm / min的加载速度压靠在擦拭布50上， SP> 2 （擦拭）。然后，将固定有研磨磨粒的清洁带压在基板侧，并且在旋转基板10的同时移除突起部（带清洗）。版权所有（C）2010，JPO＆INPIT

24. 发明专利

JP2010067299A Magnetic disk device 审中-公开
标题翻译：磁盘设备
公开(公告)号：JP2010067299A
公开(公告)日：2010-03-25
申请号：JP2008231232
申请日：2008-09-09
申请人： Toshiba Storage Device Corp , 東芝ストレージデバイス株式会社
发明人： WATABE KEIJI
IPC分类号： G11B5/60 , G11B5/31 , G11B5/65 , G11B5/725 , G11B5/84 , G11B21/21
CPC分类号： G11B5/40 , G11B5/3106 , G11B5/8408
摘要： PROBLEM TO BE SOLVED: To prevent degradation of floating characteristics of a magnetic head and degradation of the magnetic head due to electric discharge accompanying charge transfer by suppressing charge transfer caused when the magnetic head contacts with a magnetic storage medium.
SOLUTION: By covering surfaces of the magnetic head 100 and the magnetic storage medium 200 with materials of coating layers which have the same elemental composition, it is possible to suppress charge transfer caused when the magnetic head 100 contacts with the magnetic storage medium 200, and degradation of floating characteristics of the magnetic head 100 and degradation of the magnetic head 100 due to electric discharge are prevented.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止磁头的浮动特性的劣化，并且通过抑制当磁头与磁存储介质接触时引起的电荷转移，由于伴随电荷转移的放电而导致的磁头的劣化。解决方案：通过用具有相同元素组成的涂层的材料覆盖磁头100和磁性存储介质200的表面，可以抑制当磁头100与磁存储介质接触时引起的电荷转移 200，并且防止磁头100的浮动特性的劣化和由于放电引起的磁头100的劣化。版权所有（C）2010，JPO＆INPIT

25. 发明专利

JP2010061708A Method of manufacturing magnetic recording medium, and magnetic recording/reproducing apparatus 审中-公开
标题翻译：制造磁记录介质的方法和磁记录/再现装置
公开(公告)号：JP2010061708A
公开(公告)日：2010-03-18
申请号：JP2008223725
申请日：2008-09-01
申请人： Showa Denko Kk , 昭和電工株式会社
发明人： FUKUSHIMA MASATO
IPC分类号： G11B5/84
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/82 , G11B5/8408
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a magnetic recording medium having a lubricant layer formed stably even if irregularity remains on the surface and preventing the film thickness of the lubricant layer from being reduced with time.
SOLUTION: The method of manufacturing the magnetic recording medium 30 forms a lubricant layer 12 on the surface of the magnetic recording medium 30 by the steps of:applying, onto the surface of the magnetic recording medium 30, a first lubricant 12a with high wettability of the surface of the magnetic recording medium 30 with respect to the lubricant; and applying a second lubricant 12b onto the surface of the magnetic recording medium 30 onto which the first lubricant 12a has been applied.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造具有稳定形成的润滑剂层的磁记录介质的方法，即使表面上保持不规则性并且防止润滑剂层的膜厚度随时间而减小。解决方案：制造磁记录介质30的方法通过以下步骤在磁记录介质30的表面上形成润滑剂层12：在磁记录介质30的表面上施加第一润滑剂12a，其具有磁记录介质30的表面相对于润滑剂的高润湿性; 并将第二润滑剂12b施加到已经施加有第一润滑剂12a的磁记录介质30的表面上。版权所有（C）2010，JPO＆INPIT

26. 发明专利

JP2010049782A Perfluoropolyether lubricant thin film for thin film storage medium 审中-公开
标题翻译：全氟玻璃薄膜薄膜储存介质
公开(公告)号：JP2010049782A
公开(公告)日：2010-03-04
申请号：JP2009161943
申请日：2009-07-08
申请人： Seagate Technology Llc , シーゲイトテクノロジーリミティドライアビリティーカンパニー
发明人： LIU JIANWEI , STIRNIMAN MICHAEL J , GUI JING
IPC分类号： G11B5/84 , C10M107/38 , C10M177/00 , C10N30/06 , C10N40/18 , C10N70/00 , G11B5/72 , G11B5/725
CPC分类号： G11B5/725 , C08G65/007 , C08G2650/48 , C08L71/02 , G11B5/8408
摘要： PROBLEM TO BE SOLVED: To provide a lubricant film which is excellent in durability for magnetic recording medium, lubricant film adhesion to an underlying layer, and abrasion resistance. SOLUTION: A method of manufacturing the magnetic recording medium includes steps of: forming a magnetic recording layer on a substrate; forming a protection overcoat layer on the magnetic recording layer; exposing the surface of the protection overcoat layer in an ambient atmosphere including perfluorocycloalkane and oxygen; and polymerizing the perfluorocycloalkane using a plasma enhanced chemical vapor deposition to deposit a layer including perfluoropolyether on the protection overcoat layer. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种对于磁记录介质的耐久性优异的润滑剂膜，与下层的润滑剂膜粘附性和耐磨性。解决方案：制造磁记录介质的方法包括以下步骤：在基板上形成磁记录层; 在磁记录层上形成保护层; 在包括全氟环烷和氧的环境气氛中暴露保护外涂层的表面; 并使用等离子体增强化学气相沉积使全氟环烷烃聚合，以在保护涂层上沉积包含全氟聚醚的层。版权所有（C）2010，JPO＆INPIT

27. 发明专利

JP4424015B2 Method for producing a magnetic recording medium 有权
公开(公告)号：JP4424015B2
公开(公告)日：2010-03-03
申请号：JP2004066422
申请日：2004-03-09
申请人：富士電機デバイステクノロジー株式会社
发明人：誠磯崎
IPC分类号： G11B5/725 , G11B5/84 , B05D5/12 , B32B1/08 , G11B5/82
CPC分类号： G11B5/8408 , Y10T428/1164

28. 发明专利

JP2009245492A Magnetic disk and its manufacturing method 有权
标题翻译：磁盘及其制造方法
公开(公告)号：JP2009245492A
公开(公告)日：2009-10-22
申请号：JP2008088953
申请日：2008-03-30
申请人： Hoya Corp , Hoya株式会社
发明人： SHIMOKAWA KOICHI
IPC分类号： G11B5/725 , C10M105/54 , C10M107/38 , C10N20/04 , C10N30/00 , C10N30/06 , C10N40/18 , G11B5/84
CPC分类号： G11B5/725 , C10M107/38 , C10M2213/043 , C10N2240/204 , G11B5/8408
摘要： PROBLEM TO BE SOLVED: To provide a magnetic disk which has excellent properties of a lubricant which forms a lubricant layer, particularly, excellent fluidity, surface energy and CFT properties, for example, and which has a high level of reliability despite a low floating height of a magnetic head due to a recent rapid increase in recording density and a very severe environment resistance requirement due to diversification of applications.
SOLUTION: The magnetic disk has at least a magnetic layer, a protective layer, and a lubricant layer provided in that order on a substrate, and the lubricant layer is formed by forming a lubricant that is a mixture of a specific perfluoropolyether lubricant and a lubricant formed of a compound comprising perfluoropolyether groups having a perfluoropolyether main chain in the structure thereof and having a hydroxyl group at the terminal thereof, the perfluoropolyether groups being bonded to each other through a divalent linking group having at least two hydroxyl groups in the structure thereof.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异润滑剂性质的磁盘，例如形成润滑剂层，特别是优异的流动性，表面能和CFT性能，并且尽管有由于近来记录密度的快速增加和由于应用多样化而导致的非常严格的环境阻力要求，磁头的浮动高度低。解决方案：磁盘在基板上至少具有依次设置的磁性层，保护层和润滑剂层，润滑层通过形成润滑剂形成，该润滑剂是特定的全氟聚醚润滑剂以及由在其结构中具有全氟聚醚主链并且在其末端具有羟基的全氟聚醚基团的化合物形成的润滑剂，所述全氟聚醚基团通过具有至少两个羟基的二价连接基团彼此键合其结构。版权所有（C）2010，JPO＆INPIT

29. 发明专利

JPWO2007116812A1 磁気ディスク及びその製造方法审中-公开
公开(公告)号：JPWO2007116812A1
公开(公告)日：2009-08-20
申请号：JP2008509814
申请日：2007-03-29
申请人： Hoya株式会社 , Hoya株式会社
发明人：宏太鈴木 , 宏太鈴木 , 弘冨安 , 弘冨安
IPC分类号： G11B5/725 , G11B5/82 , G11B5/84
CPC分类号： G11B5/8408 , G11B5/725
摘要：基板上に磁性層と保護層と潤滑層を備える磁気ディスクであって、潤滑層は自己組織化単分子膜で形成されている。自己素組織化単分子膜の材料は、炭化水素系シラン剤又は部分フッ素化炭化水素系シラン剤である。基板上に磁性層と保護層(P)を順次形成した後、炭化水素系シラン剤又は部分フッ素化炭化水素系シラン剤を含む溶液中に、前記磁性層と保護層(P)を形成した基板を浸漬させることにより前記保護層(P)上に潤滑層(L)を形成する。

30. 发明专利

JP4251318B2 Magnetic recording medium and a method of manufacturing the same 有权
公开(公告)号：JP4251318B2
公开(公告)日：2009-04-08
申请号：JP2003181892
申请日：2003-06-25
申请人：富士電機デバイステクノロジー株式会社
发明人：秀昭松山
IPC分类号： G11B5/72 , G11B5/725 , G11B5/84
CPC分类号： G11B5/8408 , G11B5/725

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