Porous aluminum oxide film and method of forming of the same
US5077114A · kind A · utility
4Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1989 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Sep 26, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24298
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A porous aluminum oxide film has a plurality of pores passing through the film. Each pore has a pair of larger diameter pores and a smaller diameter pore. The smaller diameter pore is disposed in a central portion with respect to the thickness of the film, and the larger diameter pores are disposed upon both ends of the smaller diameter pore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.