发明名称 METHOD FOR MANUFACTURING GLASS SUBSTRATE AND METHOD FOR MANUFACTURING MAGNETIC DISK
摘要 A method for manufacturing a glass substrate according to which surface roughnesses of main surfaces of a glass substrate can be reduced more than with currently available methods is provided. After the main surfaces of the glass substrate used in a magnetic disk are mirror-polished (final finishing-polished) using a polishing liquid containing organic-based particles made of, for example, a styrene-based resin an acrylic resin, or a urethane-based resin as polishing abrasive particles, by cleaning the glass substrate using an organic-based cleaning agent, surface roughnesses of the main surfaces of the substrate can be reduced more than with currently available methods.
申请公布号 US2016217818(A1) 申请公布日期 2016.07.28
申请号 US201415023938 申请日期 2014.09.29
申请人 TAWARA Yoshihiro 发明人 TAWARA Yoshihiro
分类号 G11B5/84 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; and cleaning the glass substrate using an organic-based cleaning agent after the main surfaces of the glass substrate are mirror-polished.
地址 Hokuto-shi, Yamanashi JP