Glass and optical element
US12330984B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jan 28, 2022 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Sep 19, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/324
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is oxide glass in which a content of P5+ is 7 to 43 cation %, a content of Nb ions is 10 to 21 cation %, a content of Li+ is 20 cation % or more, a total content of Nb ions and Li+ is 48 to 70 cation %, a content of Bi ions is more than 0 cation % and is equal to or less than 6 cation %, a content of Ba2+ is 5 cation % or less, a content of Zr4+ is 2 cation % or less, a total content of Ti ions and W ions is 5 cation % or less, and a cation ratio of the content of Li+ to a total content of Li+, Na+, and K+[Li+/(Li++Na++K+)] is 0.5 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.