发明名称 |
Glass substrate for magnetic recording medium, manufacturing method thereof, and magnetic recording medium incorporating the glass substrate |
摘要 |
A surface of a glass substrate is strengthened relative to a non-tempered bulk by heating the substrate to a temperature near its softening temperature, and then rapidly cooling the glass substrate. This process forms a compressive-stressed layer at the surface over the non-tempered bulk. The manufacture of a magnetic recording medium using the strengthened substrate is also disclosed.
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申请公布号 |
US2001007723(A1) |
申请公布日期 |
2001.07.12 |
申请号 |
US20000746442 |
申请日期 |
2000.12.20 |
申请人 |
TOKUMOTO TAKAHIRO |
发明人 |
TOKUMOTO TAKAHIRO |
分类号 |
G11B5/73;G11B5/84;(IPC1-7):G11B5/82 |
主分类号 |
G11B5/73 |
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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