发明名称 |
METHOD OF MANUFACTURING POROUS ANODIZED ALUMINA FILM |
摘要 |
A plurality of recesses having the same interval and array as those of pores of an alumina film, which are to be formed in anodizing, are formed on a smooth surface of an aluminum plate in advance, and then, the aluminum plate is anodized. With this process, the roundness of the pores of the porous anodized alumina film and the uniformity of pore size are improved, and the pores are regularly arrayed at a predetermined interval. The recesses are formed by pressing a substrate having a plurality of projections on its surface against the aluminum plate surface to be anodized. <IMAGE> <IMAGE> |
申请公布号 |
EP0931859(A4) |
申请公布日期 |
2003.02.05 |
申请号 |
EP19970935888 |
申请日期 |
1997.08.26 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
NAKAO, MASASHI;TAMAMURA, TOSHIAKI;MASUDA, HIDEKI |
分类号 |
C25D11/04;C25D11/16;(IPC1-7):C25D11/04 |
主分类号 |
C25D11/04 |
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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