| 发明名称 |
MAGNETIC DISK SUBSTRATE |
| 摘要 |
A magnetic disk substrate having a composition wherein (V/13) + (Fe/20) + (Cr/17) + (Ni/31) + (Co/23) are no greater than 0.010%, Rem + Si + B + W are no greater than 0.015% (where Rem denotes rare earth metals), O + 2N + 0.75C are no less than 0.03% and no greater than 0.5%, and the remainder consists substantially of Ti, all % being weight %.
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| 申请公布号 |
CA2010290(A1) |
申请公布日期 |
1990.08.23 |
| 申请号 |
CA19902010290 |
申请日期 |
1990.02.16 |
| 申请人 |
NKK CORPORATION |
发明人 |
FUKAI, HIDEAKI;SUENAGA, HIROYOSHI;MINAKAWA, KUNINORI;OTAKA, SHINICHIRO;NAOE, MASAHIKO |
| 分类号 |
G11B5/82;C22C14/00;G11B5/73;(IPC1-7):C22C14/00;H01F1/053;G11B5/62 |
主分类号 |
G11B5/82 |
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