Method of making tungsten-copper composite oxides
US5470549A · kind A · utility
10Cited by
0References
12Claims
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Key dates
| Filing date | Dec 22, 1994 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Dec 22, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for making a tungsten-copper composite oxide wherein an amount of an ammonium tungstate and an amount of an oxide or hydroxide of copper are combined without milling to form a mixture. The unmilled mixture is then dehydrated and fired at a temperature and for a time sufficient to form the tungsten-copper composite oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.