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1. 发明申请

US20110281780A1 LUBRICANT SUITABLE FOR USE WITH MAGNETIC DISK 有权
标题翻译：润滑剂适用于磁性磁盘
公开(公告)号：US20110281780A1
公开(公告)日：2011-11-17
申请号：US13188423
申请日：2011-07-21
申请人： Yoshihiko Ooeda , Masayuki Ishikawa
发明人： Yoshihiko Ooeda , Masayuki Ishikawa
IPC分类号： C10M169/04
CPC分类号： G11B5/725 , G11B5/82
摘要： A lubricant according to one embodiment includes a first ingredient and a second ingredient, said first ingredient as the main constituent being a first perfluoropolyether compound represented by the formula (1) which has a weight-average molecular weight of 500 to 6000 and a dispersity smaller than 1.3, and said second ingredient being a second perfluoropolyether compound which has a weight-average molecular weight of 500 to 6000 and has 6 to 10 hydroxyl groups (on average) in one molecule, Rt-Rf1-Rt (1) where, Rf1 denotes a perfluoropolyether chain represented by the formula (2) and Rt denotes a terminal group represented by the formula (3), —CF2O—[(CF2CF2O)m—(CF2O)n]—CF2— (2) where, m and n each denote a natural number,
摘要翻译：根据一个实施方案的润滑剂包括第一成分和第二成分，所述第一成分作为主要成分是由式（1）表示的第一全氟聚醚化合物，其重均分子量为500至6000，分散度较小并且所述第二成分是第二全氟聚醚化合物，其重均分子量为500-6000，并且在一个分子中具有6至10个羟基（平均）），Rt-Rf1-Rt（1）其中Rf1 表示由式（2）表示的全氟聚醚链，并且Rt表示由式（3）表示的端基，-CF 2 O - [（CF 2 CF 2 O）m - （CF 2 O）n] -CF 2 - （2）其中m和n 每个表示自然数，

2. 发明授权

US08623800B2 Lubricant suitable for use with magnetic disk 有权
标题翻译：润滑剂适用于磁盘
公开(公告)号：US08623800B2
公开(公告)日：2014-01-07
申请号：US13188423
申请日：2011-07-21
申请人： Yoshihiko Ooeda , Masayuki Ishikawa
发明人： Yoshihiko Ooeda , Masayuki Ishikawa
IPC分类号： C10M107/34 , C10M107/38
CPC分类号： G11B5/725 , G11B5/82
摘要： A lubricant according to one embodiment includes a first ingredient and a second ingredient, said first ingredient as the main constituent being a first perfluoropolyether compound represented by the formula (1) which has a weight-average molecular weight of 500 to 6000 and a dispersity smaller than 1.3, and said second ingredient being a second perfluoropolyether compound which has a weight-average molecular weight of 500 to 6000 and has 6 to 10 hydroxyl groups (on average) in one molecule, Rt-Rf1-Rt (1) where, Rf1 denotes a perfluoropolyether chain represented by the formula (2) and Rt denotes a terminal group represented by the formula (3), —CF2O—[(CF2CF2O)m—(CF2O)n]—CF2— (2) where, m and n each denote a natural number,
摘要翻译：根据一个实施方案的润滑剂包括第一成分和第二成分，所述第一成分作为主要成分是由式（1）表示的第一全氟聚醚化合物，其重均分子量为500至6000，分散度较小并且所述第二成分是第二全氟聚醚化合物，其重均分子量为500-6000，并且在一个分子中具有6至10个羟基（平均）），Rt-Rf1-Rt（1）其中Rf1 表示由式（2）表示的全氟聚醚链，并且Rt表示由式（3）表示的端基，-CF 2 O - [（CF 2 CF 2 O）m - （CF 2 O）n] -CF 2 - （2）其中m和n 每个表示自然数，

3. 发明授权

US08007932B2 Magnetic disk and magnetic disk unit 有权
标题翻译：磁盘和磁盘单元
公开(公告)号：US08007932B2
公开(公告)日：2011-08-30
申请号：US12313409
申请日：2008-11-19
申请人： Yoshihiko Ooeda , Masayuki Ishikawa
发明人： Yoshihiko Ooeda , Masayuki Ishikawa
IPC分类号： G11B5/65
CPC分类号： G11B5/725 , G11B5/82
摘要： Embodiments of the present invention provide a magnetic disk having a lubricating layer formed on the surface thereof, which meets all the requirements for adhesiveness, adequate flowability, and strong binding power. In a particular embodiment, a magnetic disk has a magnetic layer, a protective layer, and a lubricating layer which are formed on a non-magnetic substrate, which is characterized in that said lubricating layer is comprised of a lubricant containing a first ingredient and a second ingredient, said first ingredient as the main constituent being a first perfluoropolyether compound represented by the formula (1) below, which has a weight-average molecular weight of 500 to 6000 and a dispersity smaller than 1.3, and said second ingredient being a second perfluoropolyether compound which has a weight-average molecular weight of 500 to 6000 and has 6 to 10 hydroxyl groups (on average) in one molecule, Rt-Rf1-Rt (1) where, Rf1 denotes a perfluoropolyether chain represented by the formula (2) and Rt denotes a terminal group represented by the formula (3), —CF2O—[(CF2CF2O)m—(CF2O)n]—CF2— (2) where, m and n each denote a natural number,
摘要翻译：本发明的实施例提供一种具有形成在其表面上的润滑层的磁盘，其满足粘合性，足够的流动性和强的结合力的所有要求。在特定实施例中，磁盘具有形成在非磁性基板上的磁性层，保护层和润滑层，其特征在于，所述润滑层由含有第一成分和第二成分，所述第一成分作为主要成分是由下式（1）表示的第一全氟聚醚化合物，其重均分子量为500至6000，分散度小于1.3，所述第二成分为第二成分全氟聚醚化合物，其重均分子量为500〜6000，在1分子中平均具有6〜10个羟基（Rt-Rf1-Rt（1）），Rf1表示由式（2）表示的全氟聚醚链）和Rt表示由式（3）表示的末端基团，-CF 2 O - [（CF 2 CF 2 O）m - （CF 2 O）n] -CF 2 - （2）其中，m和n各自表示自然数，

4. 发明申请

US20090154010A1 Magnetic disk and magnetic disk unit 有权
标题翻译：磁盘和磁盘单元
公开(公告)号：US20090154010A1
公开(公告)日：2009-06-18
申请号：US12313409
申请日：2008-11-19
申请人： Yoshihiko Ooeda , Masayuki Ishikawa
发明人： Yoshihiko Ooeda , Masayuki Ishikawa
IPC分类号： G11B5/62 , G11B5/127
CPC分类号： G11B5/725 , G11B5/82
摘要： Embodiments of the present invention provide a magnetic disk having a lubricating layer formed on the surface thereof, which meets all the requirements for adhesiveness, adequate flowability, and strong binding power. In a particular embodiment, a magnetic disk has a magnetic layer, a protective layer, and a lubricating layer which are formed on a non-magnetic substrate, which is characterized in that said lubricating layer is comprised of a lubricant containing a first ingredient and a second ingredient, said first ingredient as the main constituent being a first perfluoropolyether compound represented by the formula (1) below, which has a weight-average molecular weight of 500 to 6000 and a dispersity smaller than 1.3, and said second ingredient being a second perfluoropolyether compound which has a weight-average molecular weight of 500 to 6000 and has 6 to 10 hydroxyl groups (on average) in one molecule, Rt-Rf1-Rt (1) where, Rf1 denotes a perfluoropolyether chain represented by the formula (2) and Rt denotes a terminal group represented by the formula (3), —CF2O—[(CF2CF2O)m—(CF2O)n]—CF2— (2) where, m and n each denote a natural number,
摘要翻译：本发明的实施例提供一种具有形成在其表面上的润滑层的磁盘，其满足粘合性，足够的流动性和强的结合力的所有要求。在特定实施例中，磁盘具有形成在非磁性基板上的磁性层，保护层和润滑层，其特征在于，所述润滑层由含有第一成分和第二成分，所述第一成分作为主要成分是由下式（1）表示的第一全氟聚醚化合物，其重均分子量为500至6000，分散度小于1.3，所述第二成分为第二成分全氟聚醚化合物，其重均分子量为500-6000，并且在一个分子中具有6至10个羟基（平均），<？在线公式描述=“在线公式”end =“lead”？ > Rt-Rf1-Rt（1）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中，Rf1表示由式（2）表示的全氟聚醚链，Rt表示末端由式（3）表示的基团，<β在线式 - CF 2 - [（CF 2 CF 2 O）m - （CF 2 O）n] -CF 2 - （2）<？在线公式描述=“在线公式” “end =”tail“？>其中，m和n各自表示自然数，

5. 发明申请

US20130083422A1 LUBRICANT LAYER THAT PROVIDES A STABLE HEAD-TO-DISK INTERFACE IN HUMID CONDITIONS 有权
标题翻译：在湿度条件下提供稳定的头盘式接口的润滑剂层
公开(公告)号：US20130083422A1
公开(公告)日：2013-04-04
申请号：US13252962
申请日：2011-10-04
申请人： Yoshihiko Ooeda , Yuzuru Shimazaki , Mina Amo , Yuichi Aoki , Robert Waltman
发明人： Yoshihiko Ooeda , Yuzuru Shimazaki , Mina Amo , Yuichi Aoki , Robert Waltman
IPC分类号： G11B21/02 , G11B5/62 , G11B5/65
CPC分类号： G11B5/725
摘要： In one embodiment, a magnetic disk medium includes a nonmagnetic substrate, a magnetic recording layer above the nonmagnetic substrate, a protective layer above the magnetic recording layer, and a lubricant layer above the protective layer, the lubricant layer including a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated R1-OCH2CF2CF2O(CF2CF2CF2O)mCF2CF2CH2O—R2, wherein R1 and R2 are alkyl chains having at least two hydroxyl groups each, and m is an integer indicating a number of repeating units. According to another embodiment, a magnetic disk medium lubricant includes a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated as above, such that a magnetic head is provided stable flight above the lubricant layer in conditions having relative humidity of greater than about 40%.
摘要翻译：在一个实施例中，磁盘介质包括非磁性衬底，非磁性衬底上的磁记录层，磁记录层上方的保护层和保护层上方的润滑层，润滑层包括具有一种或多种环磷腈基团和润滑剂配制为R1-OCH2CF2CF2O（CF2CF2CF2O）mCF2CF2CH2O-R2，其中R1和R2分别是具有至少两个羟基的烷基链，m是表示重复单元数的整数。根据另一个实施方案，磁盘介质润滑剂包括具有一个或多个环磷腈基团的化合物和如上所述配制的润滑剂的混合物，使得磁头在相对湿度大于的条件下在润滑剂层上方提供稳定的飞行约40％。

6. 发明授权

US08663822B2 Lubricant layer that provides a stable head-to-disk interface in humid conditions 有权
标题翻译：润滑层，在潮湿条件下提供稳定的磁头到磁盘接口
公开(公告)号：US08663822B2
公开(公告)日：2014-03-04
申请号：US13252962
申请日：2011-10-04
申请人： Yoshihiko Ooeda , Yuzuru Shimazaki , Mina Amo , Yuichi Aoki , Robert Waltman
发明人： Yoshihiko Ooeda , Yuzuru Shimazaki , Mina Amo , Yuichi Aoki , Robert Waltman
IPC分类号： G11B5/66 , G11B5/82 , C07F9/06
CPC分类号： G11B5/725
摘要： In one embodiment, a magnetic disk medium includes a nonmagnetic substrate, a magnetic recording layer above the nonmagnetic substrate, a protective layer above the magnetic recording layer, and a lubricant layer above the protective layer, the lubricant layer including a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated R1-OCH2CF2CF2O(CF2CF2CF2O)mCF2CF2CH2O—R2, wherein R1 and R2 are alkyl chains having at least two hydroxyl groups each, and m is an integer indicating a number of repeating units. According to another embodiment, a magnetic disk medium lubricant includes a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated as above, such that a magnetic head is provided stable flight above the lubricant layer in conditions having relative humidity of greater than about 40%.
摘要翻译：在一个实施例中，磁盘介质包括非磁性衬底，非磁性衬底上的磁记录层，磁记录层上方的保护层和保护层上方的润滑层，润滑层包括具有一种或多种环磷腈基团和润滑剂配制为R1-OCH2CF2CF2O（CF2CF2CF2O）mCF2CF2CH2O-R2，其中R1和R2分别是具有至少两个羟基的烷基链，m是表示重复单元数的整数。根据另一个实施方案，磁盘介质润滑剂包括具有一个或多个环磷腈基团的化合物和如上所述配制的润滑剂的混合物，使得磁头在相对湿度大于的条件下在润滑剂层上方提供稳定的飞行约40％。

7. 发明授权

US08427785B2 Head-slider including a low-surface-energy film that prevents lubricant accumulation, head-arm assembly including the head-slider, and hard-disk drive including the head-arm assembly 有权
标题翻译：头部滑块包括防止润滑剂积聚的低表面能膜，包括头部滑块的头臂组件和包括头臂组件的硬盘驱动器
公开(公告)号：US08427785B2
公开(公告)日：2013-04-23
申请号：US12639013
申请日：2009-12-16
申请人： Yoshihiko Ooeda , Kenji Kuroki , Katsuhide Tanaka
发明人： Yoshihiko Ooeda , Kenji Kuroki , Katsuhide Tanaka
IPC分类号： G11B5/60
CPC分类号： G11B5/6005
摘要： The head-slider is configured to receive an air-stream produced by rotation of a magnetic-recording disk and is configured to fly in proximity with a recording surface of the magnetic-recording disk. The head-slider includes a trailing edge on an outflow side of the air-stream, and a disk-facing surface that is configured to face the recording surface of the magnetic-recording disk. A low-surface-energy film is disposed on a portion of a trailing-edge side of the head-slider that is in contact with a boundary between the trailing edge and the disk-facing surface. The low-surface-energy film has a lower surface energy than other portions of the trailing-edge side where the low-surface-energy film is not disposed.
摘要翻译：头部滑块被配置为接收由磁记录盘的旋转产生的空气流，并且被配置为在磁记录盘的记录表面附近飞行。头部滑动器包括在空气流的流出侧上的后缘和构造成面对磁记录盘的记录表面的面向盘的表面。低表面能膜被设置在与后缘和面向盘的表面之间的边界接触的头部滑块的后缘侧的一部分上。低表面能膜比不设置低表面能膜的后缘侧的其它部分具有较低的表面能。

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