MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, MAGNETIC DISK, AND MAGNETIC DATA RECORDING/REPRODUCING DEVICE
    1.
    发明申请
    MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, MAGNETIC DISK, AND MAGNETIC DATA RECORDING/REPRODUCING DEVICE 审中-公开
    用于磁盘,磁盘和磁数据记录/再现装置的玻璃基板的制造方法

    公开(公告)号:US20150158139A1

    公开(公告)日:2015-06-11

    申请号:US14618758

    申请日:2015-02-10

    申请人: HOYA CORPORATION

    摘要: A manufacturing method of a glass substrate for a magnetic disk is provided whereby nano pits and/or nano scratches cannot be easily produced in polishing a principal face of a glass substrate using a slurry containing zirconium oxide as an abrasive. The manufacturing method of a glass substrate for a magnetic disk includes, for instance, a polishing step of polishing a principal face of a glass substrate using a slurry containing, as an abrasive, zirconium oxide abrasive grains having monoclinic crystalline structures (M) and tetragonal crystalline structures (T).

    摘要翻译: 提供了一种用于磁盘的玻璃基板的制造方法,其中使用含有氧化锆作为研磨剂的浆料在玻璃基板的主面研磨时不容易产生纳米凹坑和/或纳米划痕。 用于磁盘的玻璃基板的制造方法包括例如使用包含作为磨料的含有单斜晶体结构(M)和四方晶系的氧化锆磨粒的浆料研磨玻璃基板的主面的抛光步骤 晶体结构(T)。

    METHOD FOR MANUFACTURING GLASS SUBSTRATE, METHOD FOR MANUFACTURING MAGNETIC DISK, AND POLISHING LIQUID COMPOSITION FOR GLASS SUBSTRATE
    2.
    发明申请
    METHOD FOR MANUFACTURING GLASS SUBSTRATE, METHOD FOR MANUFACTURING MAGNETIC DISK, AND POLISHING LIQUID COMPOSITION FOR GLASS SUBSTRATE 审中-公开
    制造玻璃基板的方法,制造磁盘的方法和用于玻璃基板的抛光液体组合物

    公开(公告)号:US20160118073A1

    公开(公告)日:2016-04-28

    申请号:US14894900

    申请日:2014-06-29

    申请人: HOYA CORPORATION

    发明人: Yoshihiro TAWARA

    摘要: The present invention provides a method for manufacturing a glass substrate for a magnetic disk or the like according to which surface roughnesses of main surfaces of a glass substrate can be reduced more than with currently available methods. In the present invention, by mirror-polishing (final finishing-polishing) the main surfaces of the glass substrate used in a magnetic disk, for example, using a polishing liquid containing organic-based particles made of a styrene-based resin, an acrylic resin, or a urethane-based resin, as polishing abrasive particles, surface roughnesses of the main surfaces of the substrate can be reduced more than with currently available methods.

    摘要翻译: 本发明提供了一种用于制造用于磁盘等的玻璃基板的方法,根据该方法,玻璃基板的主表面的表面粗糙度可以比目前可用的方法更大。 在本发明中,通过对使用在磁盘中的玻璃基板的主表面进行镜面抛光(最终精加工抛光),例如使用含有由苯乙烯类树脂构成的有机系微粒的研磨液,将丙烯酸 树脂或氨基甲酸酯类树脂作为研磨磨粒,与现有的方法相比,可以减少基材的主表面的表面粗糙度。

    MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, MAGNETIC DISK, AND MAGNETIC RECORDING / REPRODUCING DEVICE
    3.
    发明申请
    MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, MAGNETIC DISK, AND MAGNETIC RECORDING / REPRODUCING DEVICE 有权
    用于磁盘,磁盘和磁记录/再现装置的玻璃基板的制造方法

    公开(公告)号:US20130083425A1

    公开(公告)日:2013-04-04

    申请号:US13627057

    申请日:2012-09-26

    申请人: Hoya Corporation

    IPC分类号: B24B37/04 G11B21/12 G11B5/82

    摘要: A manufacturing method of a glass substrate for a magnetic disk is provided whereby nano pits and/or nano scratches cannot be easily produced in polishing a principal face of a glass substrate using a slurry containing zirconium oxide as an abrasive. The manufacturing method of a glass substrate for a magnetic disk includes, for instance, a polishing step of polishing a principal face of a glass substrate using a slurry containing, as an abrasive, zirconium oxide abrasive grains having monoclinic crystalline structures (M) and tetragonal crystalline structures (T).

    摘要翻译: 提供了一种用于磁盘的玻璃基板的制造方法,其中使用含有氧化锆作为研磨剂的浆料在玻璃基板的主面研磨时不容易产生纳米凹坑和/或纳米划痕。 用于磁盘的玻璃基板的制造方法包括例如使用包含作为磨料的含有单斜晶体结构(M)和四方晶系的氧化锆磨粒的浆料研磨玻璃基板的主面的抛光步骤 晶体结构(T)。