Glass substrate for magnetic recording medium, and magnetic recording medium
    82.
    发明授权
    Glass substrate for magnetic recording medium, and magnetic recording medium 失效
    用于磁记录介质的玻璃基板和磁记录介质

    公开(公告)号:US06833175B2

    公开(公告)日:2004-12-21

    申请号:US10097152

    申请日:2002-03-13

    IPC分类号: G11B582

    摘要: A glass substrate for a magnetic recording medium has a textured surface having numerous grooves extending in the circumferential direction of the glass substrate. The average roughness of the textured surface is 0.4 nm or less. The number of the grooves is 15 or more per micrometer. The average depth of the grooves is 2 nm or less. The grooves are formed by mechanical texturing using a texturing liquid applied between a texturing tape and the surface of a blank glass substrate rotating. The texturing liquid is an aqueous dispersion of fine diamond abrasive grains.

    摘要翻译: 用于磁记录介质的玻璃基板具有沿着玻璃基板的圆周方向延伸的许多凹槽的织纹表面。 纹理表面的平均粗糙度为0.4nm以下。 槽的数量为每微米15个以上。 槽的平均深度为2nm以下。 通过使用施加在变形带和旋转的坯料玻璃基板的表面之间的纹理液体的机械纹理来形成凹槽。 纹理液是精细金刚石磨粒的水分散体。

    Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences
    83.
    发明授权
    Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences 失效
    谐振频率测量方法通过对偏离轨迹发生次数进行计数来确定谐振频率

    公开(公告)号:US06774615B2

    公开(公告)日:2004-08-10

    申请号:US10056865

    申请日:2002-01-25

    IPC分类号: G06M110

    CPC分类号: G11B21/10

    摘要: A resonance-frequency measuring method is used for measuring a resonance frequency of an information recording/reproducing device reproducing information recorded on a medium by driving a mechanism unit. The resonance-frequency measuring method comprises the measuring step of applying sine-wave oscillations at different frequencies one by one to the mechanism unit, and counting the number of times information reproduced upon application of each of the sine-wave oscillations differs from information indicating an aimed location, and the resonance-frequency determining step of determining the resonance frequency according to the number of times counted in the measuring step.

    摘要翻译: 谐振频率测量方法用于通过驱动机构单元来测量记录在介质上的信息记录/再现装置再现信息的共振频率。 谐振频率测量方法包括测量步骤,将不同频率的正弦波振荡逐个地施加到机构单元,并且计数在应用每个正弦波振荡时再现的信息的数量不同于指示 以及谐振频率确定步骤,用于根据在测量步骤中计数的次数来确定谐振频率。

    Method of texturing surface of substrate for recording medium
    85.
    发明授权
    Method of texturing surface of substrate for recording medium 失效
    用于记录介质的基材表面纹理化方法

    公开(公告)号:US06468600B1

    公开(公告)日:2002-10-22

    申请号:US10067013

    申请日:2002-02-04

    IPC分类号: B05D306

    CPC分类号: G11B5/8404

    摘要: A method of texturing includes the process of enhancing the hydrophilicity on the surface of a substrate for a recording medium. A texture is then formed on the surface of the substrate with an aqueous slurry in which abrasive grains are dispersed. The surface of the substrate is expected to exhibit an enhanced property of wetness to the aqueous slurry. The aqueous slurry easily spreads over and contacts the surface of the substrate even from the initial stage of the process. The abrasive grains in the aqueous slurry are allowed to uniformly spread over the surface of the substrate. Establishment of the texture can be started on the surface of the substrate at an earlier stage of the process. Even with the abrasive grains of a smaller grain size, a fine and uniform texture of a predetermined surface roughness can be established on the surface of the substrate within a shortened period. Increase in the operating period of abrasion can remarkably be suppressed irrespective of the reduced size of the abrasive grains.

    摘要翻译: 纹理化方法包括提高用于记录介质的基材表面上的亲水性的方法。 然后在其中分散磨料颗粒的水性浆料在基材的表面上形成织构。 预期基材的表面具有增强的水性浆液的润湿性能。 即使从工艺的初始阶段,含水浆料也容易扩散并接触基材的表面。 允许含水浆料中的磨料颗粒均匀地铺展在基材的表面上。 可以在该方法的较早阶段在衬底的表面上开始纹理的建立。 即使具有较小晶粒尺寸的磨粒,可以在缩短的时间内在衬底的表面上形成预定表面粗糙度的精细且均匀的织构。 无论磨粒的尺寸减小,磨损操作周期的增加都可以被显着抑制。

    Disc reproducing apparatus
    86.
    发明授权
    Disc reproducing apparatus 失效
    盘重放装置

    公开(公告)号:US06411590B1

    公开(公告)日:2002-06-25

    申请号:US09448170

    申请日:1999-11-24

    IPC分类号: G11B1910

    摘要: A disc reproducing apparatus comprises a disc holder for receiving a plurality of discs; a disc reproducing section including a turntable for mounting a disc, an optical pickup for reproducing information recorded on the disc, a pickup moving mechanism for moving the optical pickup in the radial direction of the disc; a reproducing section pivoting means for pivoting the reproducing section between a reproducing position and a non-reproducing Position; and a disc transporting means for transporting a disc inserted from the outside to the disc holder. In particular, the disc reproducing section includes a position detecting means for detecting a position of the optical pickup in the reproducing apparatus. Further, when the disc reproducing section is in its non-reproducing position, the position detecting means is adapted to detect the position of a disc which has been transported from the outside into the apparatus.

    摘要翻译: 盘再现装置包括用于接收多个盘的盘保持器; 包括用于安装盘的转盘的光盘重放部分,用于再现记录在盘上的信息的光学拾取器,用于沿光盘径向移动光学拾取器的拾取器移动机构; 再现部分枢转装置,用于在再现位置和非再现位置之间枢转再现部分; 以及用于将从外部插入的盘传送到盘保持器的盘传送装置。 具体而言,盘重放部分包括用于检测再现装置中光拾取器的位置的位置检测装置。 此外,当盘再现部分处于其非再现位置时,位置检测装置适于检测已经从外部传送到装置中的盘的位置。

    Disk reproducing apparatus
    87.
    发明授权
    Disk reproducing apparatus 失效
    磁盘重放装置

    公开(公告)号:US06185164B2

    公开(公告)日:2001-02-06

    申请号:US08992406

    申请日:1997-12-17

    IPC分类号: G11B1730

    CPC分类号: G11B17/223

    摘要: A disk reproducing apparatus with a plurality of disks arrayed and held therein selects a desired disk for reproduction from the arrayed disks. The disk reproducing apparatus includes an insertion slot which defines an insertion executable position, a disk holding device including a plurality of disks inserted through the insertion slot by arraying the disks in a direction perpendicular to main surfaces of the disks, the disk holding device being movable in a direction of arrangement of the disks, a disk reproducing device having upper and lower surfaces opposing in the direction of arrangement of the disks, the disk reproducing device being movable in the direction of arrangement of the disks, and reproducing a disk to be reproduced at a reproduction executable position at which the upper surface faces the disk to be reproduced. When a disk is to be inserted, the disc reproducing device is placed at a position where the lower surface is positioned near to the insertion executable position in the direction of arrangement of the disks. When a disk is to be reproduced, the disk reproducing device is placed at a position where the distance of the upper surface from the insertion executable position in the direction of arrangement of the disks is smaller than its distance at the time of insertion of a disk. Thereby the reduction in size of the apparatus as a whole and a smooth execution of the reproduction operation are attained.

    摘要翻译: 具有排列并保持在其中的多个盘的盘再现装置从阵列盘中选择要再现的期望盘。 磁盘重放装置包括一个限定插入可执行位置的插入槽,一个磁盘保持装置,包括通过沿垂直于磁盘主表面的方向排列磁盘插入插入槽的多个磁盘,磁盘保持装置可移动 在盘的排列方向上,具有在盘的排列方向上相对的上表面和下表面的盘再现装置,盘重放装置可在盘的排列方向上移动,并再现要再现的盘 在上表面面对要再现的盘的再现可执行位置。 当要插入盘时,盘再现装置被放置在下表面位于靠近盘的排列方向上的插入可执行位置的位置处。 当磁盘被再现时,磁盘重放装置被放置在上述表面与插入方向的插入可执行位置的距离小于其在插入磁盘时的距离的位置 。 从而可以实现装置的整体尺寸的缩小以及再现操作的平稳执行。

    Waste solution discharging apparatus for waterless lithographic printing
plates
    89.
    发明授权
    Waste solution discharging apparatus for waterless lithographic printing plates 失效
    无水平版印刷版废液排放装置

    公开(公告)号:US5307106A

    公开(公告)日:1994-04-26

    申请号:US897016

    申请日:1992-06-11

    CPC分类号: G03F7/3092

    摘要: A waste solution discharging apparatus for waterless lithographic printing plates which is used in a waterless lithographic printing plate developing apparatus, in which a waterless lithographic printing plate is developed while processing solution inside an accommodating tank is pumped out by a circulating pump, supplied to the waterless lithographic printing plate, and recovered in the accommodating tank, and a replenishing solution is replenished periodically. The waste solution discharging apparatus for waterless lithographic printing plates discharges the processing solution, which is within the accommodating tank and which contains scrapings generated after development, as waste solution. In the waste solution discharging apparatus for waterless lithographic printing plates, a processing solution inflow opening of a discharge pipe, which discharges the processing solution in the processing tank along with the scrapings, is formed of a material having low surface tension, and/or the waste solution discharging apparatus is provided with a guide member which guides the scrapings to the processing solution inflow opening. Accordingly, the processing solution which includes the scrapings smoothly flows into the discharge pipe.

    摘要翻译: 在无水平版印刷版显影装置中使用的无水平版印刷版用废溶液排出装置,其中无水平版印刷版在处理容纳箱内的溶液的同时显影时被循环泵抽出,供给无水平版印刷版 平版印刷版,并在容纳槽中回收,并且定期补充补充溶液。 用于无水平版印刷版的废溶液排放装置将处于开发之后产生的刮屑的容纳箱内的处理溶液作为废液排出。 在无水平版印刷版的废溶液排出装置中,排出管的处理液流入口与刮板一起排出处理槽中的处理液由具有低表面张力的材料形成,和/或 废液排出装置设置有引导构件,该引导构件将刮削件引导到处理液流入口。 因此,包括刮削的处理液平稳地流入排出管。