| 发明名称 |
METHOD FOR MANUFACTURING GLASS SUBSTRATE, METHOD FOR MANUFACTURING MAGNETIC DISK, AND POLISHING LIQUID COMPOSITION FOR GLASS SUBSTRATE |
| 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. |
| 申请公布号 |
US2016118073(A1) |
申请公布日期 |
2016.04.28 |
| 申请号 |
US201414894900 |
申请日期 |
2014.06.29 |
| 申请人 |
HOYA CORPORATION |
发明人 |
TAWARA Yoshihiro |
| 分类号 |
G11B5/84;G11B5/62;C09K3/14;B24B37/04;B24B37/08 |
主分类号 |
G11B5/84 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for manufacturing a glass substrate, comprising:
mirror-polishing main surfaces of the glass substrate using a polishing liquid containing organic-based particles as polishing abrasive particles. |
| 地址 |
Tokyo JP |
