| 发明名称 |
Method of manufacturing titanium magnetic disk substrate. |
| 摘要 |
<p>After the surface roughness of a titanium substrate is set to be Rmax </= 0.08 mu m, a hardened layer having a hardness of Hv >/= 250 is formed thereon to have a thickness of 50 to 250 mu m by sputtering, thereby manufacturing a titanium magnetic disk substrate.</p> |
| 申请公布号 |
EP0445732(A2) |
申请公布日期 |
1991.09.11 |
| 申请号 |
EP19910103310 |
申请日期 |
1991.03.05 |
| 申请人 |
NKK CORPORATION |
发明人 |
SUENAGA, HIROYOSHI, C/O PATENT & LICENSE DEPT.;FUKAI, HIDEAKI, C/O PATENT & LICENSE DEPT.;SAKIYAMA, TOSHIO, C/O PATENT & LICENSE DEPT.;MINAKAWA, KUNINORI, C/O PATENT & LICENSE DEPT. |
| 分类号 |
B29D17/00;C23C14/02;C23C14/06;C23C14/08;C23C14/14;G11B5/66;G11B5/73;G11B5/738;G11B5/84;G11B5/82 |
主分类号 |
B29D17/00 |
| 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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