公开(公告)号：US06740414B2

公开(公告)日：2004-05-25

申请号：US10371596

申请日：2003-02-20

申请人： Toru Yatsue

发明人： Toru Yatsue

IPC分类号： G11B5725

CPC分类号： C10M107/38 ,  C08G65/007 ,  C08G65/30 ,  C08G65/46 ,  C10M2213/0606 ,  C10N2240/204 ,  G11B5/725 ,  G11B5/8408

摘要： The disclosed invention provides a high-reliability magnetic recording apparatus, magnetic recording medium, and a method of manufacturing such a medium in a high-density magnetic recording apparatus which comprises a magnetic disk revolving at a high speed and a magnetic head which flies as low as possible over the magnetic disk. A lubricant layer formed on the outermost surface of a magnetic recording medium is constituted by a lubricant which comprises fluoropolyether as the principal ingredient. The fluoropolyether lubricant is characterized in that alcohol hydration distribution which corresponds to difference between the greatest and smallest alcohol valences among the component molecules of the fluoropolyether is adjusted to 0.48 or less and an average alcohol valence among the component molecules is adjusted to fall within a range of 3.00 to 3.91.

摘要翻译： 所公开的发明提供了一种高可靠性磁记录装置，磁记录介质和在高密度磁记录装置中制造这种介质的方法，该高密度磁记录装置包括高速旋转的磁盘和飞低的磁头 尽可能在磁盘上。 形成在磁记录介质的最表面上的润滑剂层由以氟聚醚为主要成分的润滑剂构成。 氟聚醚润滑剂的特征在于，将与氟聚醚的组分分子中的最大和最小醇价之间的差异对应的醇水合分布调节至0.48以下，并将成分分子中的平均醇价调节至范围内 为3.00至3.91。

公开(公告)号：US07147943B2

公开(公告)日：2006-12-12

申请号：US10429704

申请日：2003-05-06

申请人： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroyuki Matsumoto ,  Hiroshi Tani ,  Mitsuhiro Shoda ,  Tomonori Kozaki ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

发明人： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroyuki Matsumoto ,  Hiroshi Tani ,  Mitsuhiro Shoda ,  Tomonori Kozaki ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

IPC分类号： G11B5/66 ,  G11B5/70

CPC分类号： G11B5/8408 ,  G11B5/72

摘要： This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic layer on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective layer mainly composed of carbon for protecting the magnetic layer exceeds 20%. The bonding force between the protective layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.

公开(公告)号：US20060153975A1

公开(公告)日：2006-07-13

申请号：US11371912

申请日：2006-03-10

申请人： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

发明人： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

IPC分类号： B05D5/12

CPC分类号： G11B5/8408

摘要： This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic layer on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective layer mainly composed of carbon for protecting the magnetic layer exceeds 20%. The bonding force between the protective layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.

摘要翻译： 该磁记录介质的特征在于，在通过插入至少下层在非磁性基板上具有磁性层的磁记录介质中，主要由主要构成的金刚石状碳保护层中的每100个碳原子的官能团的比例 用于保护磁性层的碳超过20％。 磁记录介质的保护层和润滑层之间的结合力增加，使得在高速旋转的情况下，不会引起润滑层的减少，从而提供具有高可靠性的磁记录装置。

公开(公告)号：US07045175B2

公开(公告)日：2006-05-16

申请号：US10377678

申请日：2003-02-28

申请人： Shigehiko Fujimaki ,  Toru Yatsue ,  Yuuichi Kokaku ,  Toshinori Ono

发明人： Shigehiko Fujimaki ,  Toru Yatsue ,  Yuuichi Kokaku ,  Toshinori Ono

IPC分类号： B05D3/14

CPC分类号： G11B5/8408 ,  G11B5/72

摘要： A method for manufacturing a magnetic recording medium includes forming a first protective layer of first material over a magnetic film provided on a substrate. The first protective layer has a thickness of about 0.2 nm to about 2 nm. A second protective layer of second material is formed over the first protective layer by driving ions of the second material into the first protective layer. The first protective layer is configured to prevent the ions of the second material from penetrating into the magnetic film.