发明名称 |
PROCESS FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM OBTAINED BY THE PROCESS, AND MAGNETIC RECORDING MEDIUM OBTAINED USING THE SUBSTRATE |
摘要 |
<p>A process for manufacturing a glass substrate for a magnetic recording medium comprising polishing a crystallized glass substrate using abrasive grains, and then washing the substrate using an aqueous organic carboxylic acid solution; a glass substrate for a magnetic recording medium which is manufactured by the process; and a magnetic recording medium obtained using the substrate. A glass substrate for a magnetic recording medium is manufactured, whereby the surface roughness is low and the surface defects are minimal for washing after polishing of a crystallized glass substrate, and wherein the Read-Write performance are not impaired when a recording layer including a magnetic film is formed on the magnetic recording medium substrate for manufacturing a magnetic recording medium.</p> |
申请公布号 |
WO2006022146(A1) |
申请公布日期 |
2006.03.02 |
申请号 |
WO2005JP14706 |
申请日期 |
2005.08.04 |
申请人 |
SHOWA DENKO K.K.;AIDA, KATSUAKI;MACHIDA, HIROYUKI;HANEDA, KAZUYUKI |
发明人 |
AIDA, KATSUAKI;MACHIDA, HIROYUKI;HANEDA, KAZUYUKI |
分类号 |
C03C23/00;C03C19/00;G11B5/73;G11B5/84 |
主分类号 |
C03C23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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