发明名称 |
Method of manufacturing a medium having a magnetic pattern |
摘要 |
A magnetic medium comprises a substrate formed with a stepped pit and a magnetic substance buried in the stepped pit. A method of manufacturing a magnetic medium comprises the steps of forming a first groove in a substrate by photoetching and forming a second groove in the first groove or in a portion adjacent to the first groove by the photoetching. The second groove is different in depth from the first groove. The method further comprises the step of burying magnetic substances into the first and second grooves.
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申请公布号 |
US5527663(A) |
申请公布日期 |
1996.06.18 |
申请号 |
US19950437569 |
申请日期 |
1995.05.09 |
申请人 |
TEIJIN SEIKI CO., LTD. |
发明人 |
TOGAWA, MASAYUKI;TOYAMA, KIYOSHI |
分类号 |
G01D5/14;H01F1/00;H01F10/08;H01F10/28;H01F41/16;H01F41/34;H02K15/03;H02K57/00;(IPC1-7):G03F7/00 |
主分类号 |
G01D5/14 |
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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