Communication device
US9284228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jan 8, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/185
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a communication device using radio waves with frequencies of 800 MHz to 3 GHz, comprising a ceramic cover at least partially exposed to the external environment of the device, at least one portion of said waves passing therethrough during the use of the device, said cover being at least partially made of a sintered product having a chemical composition such as, by weight and for a total of 100%, 32%≦ZrO2≦95%, 1%<Y2O3+CeO2+Sc2O3+MgO+CaO, 0%≦CeO2≦26%, 0%≦MgO≦43%, 0%≦CaO≦37%, 0%≦SiO2≦41%, 0%≦Al2O3≦55%, 0%≦TiO2≦30%, 0%≦lanthanide oxide, except for CeO2≦50% 0% SrO≦24%, o %≦iAlON compounds ≦50%, and other compounds ≦15%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.