公开(公告)号：US07846567B2

公开(公告)日：2010-12-07

申请号：US12127856

申请日：2008-05-28

申请人： Yasutaka Okura ,  Tomio Iwasaki

发明人： Yasutaka Okura ,  Tomio Iwasaki

IPC分类号： G11B5/70

CPC分类号： G11B5/855

摘要： The present invention provides a magnetic disk in a discrete track medium and a patterned medium, which prevents the loss of the magnetically recorded data when a head of a magnetic disk device contacts the magnetic disk, and a manufacturing method thereof. A magnetic disk has a protrusion as a non-magnetic member formed on a disk surface to prevent a head from being in contact with a recording section. When the protrusion formed in a disk substrate collides against the head, the protrusion 7 does not collapse, and accordingly, the recording layer is not damaged. Alternatively, concave and convex portions are formed on the substrate surface to use the convex portion as the protrusion.

摘要翻译： 本发明提供了一种分立轨道介质中的磁盘和图案化介质，其防止当磁盘装置的磁头与磁盘接触时磁记录数据的损失及其制造方法。 磁盘具有作为形成在盘表面上的非磁性构件的突起，以防止头部与记录部分接触。 当形成在盘基板上的突起与头部碰撞时，突起7不会折叠，因此记录层不被损坏。 或者，在基板表面上形成凹凸部，使用凸部作为突出部。

公开(公告)号：US20090316289A1

公开(公告)日：2009-12-24

申请号：US12368433

申请日：2009-02-10

申请人： Yasutaka OKURA

发明人： Yasutaka OKURA

IPC分类号： G11B5/02

CPC分类号： G11B5/72

摘要： A magnetic disk, comprises, a magnetic disk, a disk driving portion for driving the magnetic disk, a slider, mounting thereon a recording element and a reproducing element, for generating a recording magnetic field, and a heating element for use in generation a near field light, and a driver portion for positioning the slide above a desired track of the magnetic disk, wherein the magnetic disk has a recording layer, an overcoat layer formed on the recording layer, a lubricant provided on the overcoat layer, wherein the overcoat layer has a first overcoat film and a second overcoat film, which is formed on the first overcoat film, or has structure of laminating a plural number of overcoat films, and within an inside thereof are provided a plural number of interfaces between different materials and/or grain boundary surfaces.

摘要翻译： 一种磁盘，包括磁盘，用于驱动磁盘的盘驱动部分，用于产生记录磁场的用于产生记录磁场的滑块，用于产生记录磁场的再生元件，以及用于产生近似的加热元件 以及用于将滑块定位在磁盘的期望轨道上方的驱动器部分，其中磁盘具有记录层，形成在记录层上的外涂层，设置在外涂层上的润滑剂，其中外涂层 具有形成在第一外涂膜上的第一覆盖膜和第二覆盖膜，或具有层叠多个外涂膜的结构，并且在其内部设置有多个不同材料和/或 晶界面。

公开(公告)号：US20090108420A1

公开(公告)日：2009-04-30

申请号：US12257790

申请日：2008-10-24

申请人： Yasutaka OKURA ,  Tomio IWASAKI ,  Takeshi TERASAKI

发明人： Yasutaka OKURA ,  Tomio IWASAKI ,  Takeshi TERASAKI

IPC分类号： H01L23/495 ,  H01L21/00

CPC分类号： H01L23/49582 ,  H01L24/48 ,  H01L24/97 ,  H01L2224/45139 ,  H01L2224/45144 ,  H01L2224/48247 ,  H01L2224/48465 ,  H01L2224/78301 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/01019 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/1306 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/00 ,  H01L2924/00012 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207 ,  H01L2924/01049 ,  H01L2924/01005

摘要： A technique capable of preventing whiskers which are generated in a plating film formed on the surface of each of leads of a semiconductor device is provided. Particularly, a technique capable of preventing generation of whiskers in a plating film containing tin as a primary material and not containing lead is provided. The plating film formed on the surface of the lead is formed so that a particular plane orientation among plane orientations of tin constituting the plating film is parallel to the surface of the lead. Specifically, the plating film is formed so that the (001) plane of tin is parallel to the surface of the lead. Thus, the coefficient of thermal expansion of tin constituting the plating film can be made to be lower than a coefficient of thermal expansion of the copper constituting the lead.

摘要翻译： 提供了能够防止在半导体器件的每个引线的表面上形成的电镀膜中产生的晶须的技术。 特别地，提供了能够防止在含锡作为主要材料并且不含铅的镀膜中产生晶须的技术。 形成在引线表面上的镀膜形成为使得构成镀膜的锡的平面取向之间的特定平面取向平行于引线的表面。 具体而言，形成镀膜，使得锡的（001）面平行于引线的表面。 因此，可以使构成镀膜的锡的热膨胀系数低于构成铅的铜的热膨胀系数。

公开(公告)号：US20080297947A1

公开(公告)日：2008-12-04

申请号：US12127856

申请日：2008-05-28

申请人： Yasutaka Okura ,  Tomio Iwasaki

发明人： Yasutaka Okura ,  Tomio Iwasaki

IPC分类号： G11B5/82 ,  B05D5/12

CPC分类号： G11B5/855

摘要： The present invention provides a magnetic disk in a discrete track medium and a patterned medium, which prevents the loss of the magnetically recorded data when a head of a magnetic disk device contacts the magnetic disk, and a manufacturing method thereof. A magnetic disk has a protrusion as a non-magnetic member formed on a disk surface to prevent a head from being in contact with a recording section. When the protrusion formed in a disk substrate collides against the head, the protrusion 7 does not collapse, and accordingly, the recording layer is not damaged. Alternatively, concave and convex portions are formed on the substrate surface to use the convex portion as the protrusion.

摘要翻译： 本发明提供了一种分立轨道介质中的磁盘和图案化介质，其防止当磁盘装置的磁头与磁盘接触时磁记录数据的损失及其制造方法。 磁盘具有作为形成在盘表面上的非磁性构件的突起，以防止头部与记录部分接触。 当形成在盘基板上的突起与头部碰撞时，突起7不会折叠，因此记录层不被损坏。 或者，在基板表面上形成凹凸部，使用凸部作为突出部。