公开(公告)号：US6110524A

公开(公告)日：2000-08-29

申请号：US206492

申请日：1998-12-07

申请人： Yoshihiro Mitobe ,  Eishin Yamakawa ,  Ichiro Kobayashi ,  Takuya Tomoi

发明人： Yoshihiro Mitobe ,  Eishin Yamakawa ,  Ichiro Kobayashi ,  Takuya Tomoi

IPC分类号： B05D1/20 ,  G11B5/725 ,  G11B5/84 ,  B05D5/12

CPC分类号： G11B5/725 ,  B05D1/20 ,  G11B5/8408

摘要： In the method of the present invention, lubricant layers of magnetic discs, which have fixed thickness, can be formed by volatilizing solvent. The method of forming the lubricant layer on the magnetic disc, comprises the steps of: dipping the magnetic disc into a solution in which the lubricant is diluted with the volatile solvent; taking out the magnetic disc from the solution; and volatilizing the volatile solvent from a surface of the magnetic disc, wherein a layer of specific liquid, whose specific gravity is less than that of the solution and which is less volatile and insoluble in the solution, is formed on a surface of the solution.

摘要翻译： 在本发明的方法中，可以通过挥发溶剂形成具有固定厚度的磁盘的润滑剂层。 在磁盘上形成润滑剂层的方法包括以下步骤：将磁盘浸入润滑剂用挥发性溶剂稀释的溶液中; 从溶液中取出磁盘; 并从磁盘的表面挥发挥发性溶剂，其中在该溶液的表面上形成比重小于溶液的挥发性和不溶于溶液的特定液体层。

公开(公告)号：US20090252992A1

公开(公告)日：2009-10-08

申请号：US12488188

申请日：2009-06-19

申请人： Makoto Okada ,  Takuya Tomoi ,  Eishin Yamakawa ,  Yuki Yoshida

发明人： Makoto Okada ,  Takuya Tomoi ,  Eishin Yamakawa ,  Yuki Yoshida

IPC分类号： G11B5/71 ,  B05D5/12

CPC分类号： G11B5/725 ,  G11B5/8408

摘要： A magnetic recording medium has a recording layer, a protection layer and a lubricant layer that are stacked above a substrate. The lubricant layer includes a bond layer in contact with the protection layer, and a mobile layer at a surface of the magnetic recording medium and having a bonding strength weaker than that of the bond layer with respect to the protection layer. A height of convex portions at a surface portion of the mobile layer is approximately 0.3 nm or less.

摘要翻译： 磁记录介质具有层叠在基板上方的记录层，保护层和润滑剂层。 润滑剂层包括与保护层接触的接合层和在磁记录介质的表面处的移动层，并且其粘合强度弱于接合层相对于保护层的粘合强度。 移动层的表面部分的凸部的高度约为0.3nm以下。

公开(公告)号：US20090059416A1

公开(公告)日：2009-03-05

申请号：US12172730

申请日：2008-07-14

申请人： Makoto Okada ,  Eishin Yamakawa ,  Yoshihiro Mitobe

发明人： Makoto Okada ,  Eishin Yamakawa ,  Yoshihiro Mitobe

IPC分类号： G11B21/02 ,  G11B5/33

CPC分类号： G11B5/725 ,  G11B5/8408

摘要： According to an aspect of an embodiment, an storage device includes a storage medium having a substrate, a storage medium layer for storing information, a first lubricating layer on a first area of the storage medium layer, and a second lubricating layer on a second area of the storage medium, the second lubricating layer having a viscosity lower than the first lubricating layer. The storage device further comprises a head for writing information into the storage medium layer or reading information from the storage medium layer.

摘要翻译： 根据实施例的一个方面，一种存储装置包括具有基板的存储介质，用于存储信息的存储介质层，在存储介质层的第一区域上的第一润滑层和在第二区域上的第二润滑层 所述第二润滑层的粘度低于所述第一润滑层。 存储装置还包括用于将信息写入存储介质层或从存储介质层读取信息的头。

公开(公告)号：US20080081220A1

公开(公告)日：2008-04-03

申请号：US11985414

申请日：2007-11-15

申请人： Keiji Watanabe ,  Hiroshi Chiba ,  Eishin Yamakawa ,  Tsukasa Itani ,  Norikazu Nakamura ,  Shoichi Suda ,  Masayuki Takeda ,  Kazuaki Kurihara

发明人： Keiji Watanabe ,  Hiroshi Chiba ,  Eishin Yamakawa ,  Tsukasa Itani ,  Norikazu Nakamura ,  Shoichi Suda ,  Masayuki Takeda ,  Kazuaki Kurihara

IPC分类号： G11B5/725

CPC分类号： C23C14/024 ,  C23C14/0605 ,  G11B5/725 ,  G11B5/8408 ,  Y10T428/1164

摘要： A magnetic disk is produced with improved yield by forming a DLC protective film by a d.c. magnetron sputtering process conducted in a sputtering atmosphere containing oxygen. The magnetic disk carries a lubricating film on the DLC film wherein a fluorocarbon resin constituting the lubricating film contains photocrosslinking groups. A lubricating film having non-polar end groups is also disclosed.

公开(公告)号：US07259937B2

公开(公告)日：2007-08-21

申请号：US11052471

申请日：2005-02-08

申请人： Hiroshi Chiba ,  Keiji Watanabe ,  Yoshiharu Kasamatsu ,  Takayuki Musashi ,  Yukiko Oshikubo ,  Eishin Yamakawa ,  Takeshi Toukairin ,  Jun Watanabe ,  Norikazu Nakamura

发明人： Hiroshi Chiba ,  Keiji Watanabe ,  Yoshiharu Kasamatsu ,  Takayuki Musashi ,  Yukiko Oshikubo ,  Eishin Yamakawa ,  Takeshi Toukairin ,  Jun Watanabe ,  Norikazu Nakamura

IPC分类号： G11B5/60

CPC分类号： G11B5/6082

摘要： A head slider to which little amount of contaminants is adhered, that can form a uniform and flat head lubricant layer surface and that has excellent ultra-low floating properties, as well as a magnetic recording device equipped with the head slider are provided. The head slider is equipped with a head slider lubricant layer having an average film thickness of not more than 2.5 nm, and composed of a water-repellent resin, the lubricant layer being formed on the head slider surface and head slider protection layer surface facing the magnetic recording medium, and the surface tension of the head slider lubricant layer determined by the Fowkes equation is not more than those of the head slider surface and head slider protection layer surface.

摘要翻译： 提供能够形成均匀且平坦的头部润滑剂层表面并且具有优异的超低浮动特性的少量污染物的头滑块以及配备有磁头滑块的磁记录装置。 磁头滑块具有平均膜厚度不大于2.5nm的磁头滑块润滑剂层，并且由防水树脂构成，润滑层形成在磁头滑块表面上，磁头滑块保护层表面面向 磁记录介质，并且由Fowkes方程确定的磁头滑块润滑剂层的表面张力不大于磁头滑块表面和磁头滑块保护层表面的表面张力。

公开(公告)号：US20060241247A1

公开(公告)日：2006-10-26

申请号：US11476179

申请日：2006-06-27

申请人： Keiji Watanabe ,  Hiroshi Chiba ,  Eishin Yamakawa ,  Tsukasa Itani ,  Norikazu Nakamura ,  Shoichi Suda ,  Masayuki Takeda ,  Kazuaki Kurihara

发明人： Keiji Watanabe ,  Hiroshi Chiba ,  Eishin Yamakawa ,  Tsukasa Itani ,  Norikazu Nakamura ,  Shoichi Suda ,  Masayuki Takeda ,  Kazuaki Kurihara

IPC分类号： C08F214/18

CPC分类号： C23C14/024 ,  C23C14/0605 ,  G11B5/725 ,  G11B5/8408 ,  Y10T428/1164

摘要： A magnetic disk is produced with improved yield by forming a DLC protective film by a d.c. magnetron sputtering process conducted in a sputtering atmosphere containing oxygen. The magnetic disk carries a lubricating film on the DLC film wherein a fluorocarbon resin constituting the lubricating film contains photocrosslinking groups. A lubricating film having non-polar end groups is also disclosed.

摘要翻译： 通过直流形成DLC保护膜来制造磁盘，产率提高。 磁控溅射工艺在含氧气体的溅射气氛中进行。 磁盘在DLC膜上携带润滑膜，其中构成润滑膜的碳氟树脂含有光交联基团。 还公开了具有非极性端基的润滑膜。

公开(公告)号：US6132875A

公开(公告)日：2000-10-17

申请号：US724323

申请日：1996-10-01

申请人： Katsumi Kiuchi ,  Eishin Yamakawa ,  Yoshito Kitamoto ,  Makoto Watanabe ,  Masahiro Takagi ,  Akira Kikuchi

发明人： Katsumi Kiuchi ,  Eishin Yamakawa ,  Yoshito Kitamoto ,  Makoto Watanabe ,  Masahiro Takagi ,  Akira Kikuchi

IPC分类号： C23C16/26 ,  C23C28/00 ,  G11B5/10 ,  G11B5/255 ,  G11B5/31 ,  G11B5/39 ,  G11B5/72 ,  G11B5/725 ,  G11B5/84 ,  G11B33/14

CPC分类号： G11B5/3903 ,  C23C16/26 ,  C23C28/00 ,  C23C28/321 ,  C23C28/322 ,  C23C28/343 ,  C23C28/347 ,  C23C28/36 ,  G11B33/148 ,  G11B5/10 ,  G11B5/255 ,  G11B5/3106 ,  G11B5/72 ,  G11B5/725 ,  G11B5/8408 ,  G11B5/102 ,  G11B5/3163 ,  Y10S428/90 ,  Y10T428/30

摘要： In a magnetic recording medium wherein a magnetic recording layer for storing information, a carbon type protective layer for preventing damage of the magnetic recording layer and a lubrication layer are sequentially formed on a non-magnetic substrate, the carbon protective layer has a relatively smaller hydrogen content on the side nearer the lubrication layer than on the side nearer the magnetic recording layer. In a magnetic head slider having an electromagnetic conversion device mounted thereto, a carbon protective layer is laminated on at least a sliding surface side, and a lubrication layer is disposed on the carbon type protective layer. In a recording apparatus including a recording medium for storing information and a magnetic head for recording or reproducing information to and from the memory medium, a carbon protective film having a lower hydrogen content at an upper, surface portion thereof than at a lower, initial portion thereof is formed on either the recording medium or a sliding portion of the magnetic head.

摘要翻译： 在用于存储信息的磁记录层的磁记录介质中，用于防止磁记录层损伤的碳类保护层和润滑层依次形成在非磁性基板上，碳保护层具有相对较小的氢 在靠近磁记录层的一侧更靠近润滑层的内容物。 在安装有电磁转换装置的磁头滑块中，至少在滑动面侧层叠有碳保护层，在碳类保护层上设置有润滑层。 在包括用于存储信息的记录介质和用于向存储介质记录或再现信息的磁头的记录装置中，具有在其上表面部分处的氢含量低于低于初始部分的碳保护膜 形成在磁头的记录介质或滑动部分上。

公开(公告)号：US20090061742A1

公开(公告)日：2009-03-05

申请号：US12174136

申请日：2008-07-16

申请人： Hiroyoshi Okumura ,  Eishin Yamakawa

发明人： Hiroyoshi Okumura ,  Eishin Yamakawa

IPC分类号： B24B1/00

CPC分类号： G11B5/8404 ,  B24B7/228 ,  Y10T29/49025 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： According to an aspect of an embodiment, a method for manufacturing a storage medium includes providing a medium plate member for forming the storage medium and a guide member; and aligning the medium plate member and the guide member so that the medium plate member and the guide member are placed adjacently and the surfaces of the medium plate member and the guide member form a substantially common plane. The method further includes guiding a burnishing member for burnishing the medium plate member onto the surface of the guide member; and sliding the burnishing member on the guide member onto the medium plate member so as to burnish the surface of the medium plate member.

摘要翻译： 根据实施例的一个方面，一种用于制造存储介质的方法包括提供用于形成存储介质的介质板构件和引导构件; 并且使介质板构件和引导构件对准，使得介质板构件和引导构件相邻放置，并且介质板构件和引导构件的表面形成基本上共同的平面。 该方法还包括引导抛光构件以将介质板构件抛光到引导构件的表面上; 并将所述引导构件上的所述抛光构件滑动到所述介质板构件上，以使所述介质板构件的表面光滑。

公开(公告)号：US20060106260A1

公开(公告)日：2006-05-18

申请号：US11063737

申请日：2005-02-24

申请人： Hiroshi Chiba ,  Yukiko Oshikubo ,  Keiji Watanabe ,  Eishin Yamakawa ,  Takeshi Toukairin

发明人： Hiroshi Chiba ,  Yukiko Oshikubo ,  Keiji Watanabe ,  Eishin Yamakawa ,  Takeshi Toukairin

IPC分类号： G11B5/65 ,  C07C43/12

CPC分类号： C08G65/007 ,  C08G65/2639 ,  C08G65/3318 ,  C09J171/02 ,  G11B5/725

摘要： There are provided a composition that exhibits sufficient flowability and also displays high substrate adhesion, and a magnetic recording medium, a head slider and a magnetic recording device that use this composition as a lubricant and are thus not prone to faults. The composition comprises a fluorine-containing polyether represented by formula (1), (in formula (1), p and q represent, independently of the symbols in other formulae, any chosen integers). The composition can be produced by reacting a polymer represented by formula (2) with glycidol, HOCH2CF2O(CF2CF2O)p(CF2O)qCF2CH2OH   (2) (in formula (2), p and q represent, independently of the symbols in other formulae, any chosen integers).

摘要翻译： 提供了表现出足够的流动性并且还显示出高的基材粘附性的组合物，以及使用该组合物作为润滑剂并因此不易发生故障的磁记录介质，磁头滑块和磁记录装置。 该组合物包含由式（1）表示的含氟聚醚，（式（1）中，p和q独立于其它式中的符号表示任意选定的整数）。 该组合物可以通过使由式（2）表示的聚合物与缩水甘油反应来制备，<？in-line-formula description =“In-line Formulas”end =“lead”？> HOCH 2 CF （CF 2 O 2）（CF 2 O）O（CF 2 CH 2 O）O（CF 2 O） α（2）<βin-line-formula description =“In-line Formulas”end =“tail” （在式（2）中，p和q独立于其它式中的符号表示任何所选择的整数）。

公开(公告)号：US06670309B2

公开(公告)日：2003-12-30

申请号：US09795424

申请日：2001-02-28

申请人： Hiroshi Chiba ,  Keiji Watanabe ,  Eishin Yamakawa ,  Takeshi Tokairin

发明人： Hiroshi Chiba ,  Keiji Watanabe ,  Eishin Yamakawa ,  Takeshi Tokairin

IPC分类号： C10M17500

CPC分类号： B01J20/08 ,  B01D15/00 ,  B01J20/103 ,  C07C17/38

摘要： In preparing a purified fluorine-based solvent from a fluorine-based solution comprising a lubricant based on a fluororesin having an organic terminal group and a fluorocarbon-based solvent, impurities including ionic pollutants contained in the fluorine-based solution or the lubricant are selectively removed by an adsorption process. The preparation apparatus of a purified fluorine-based solvent is also disclosed.