Ink and ink-jet recording ink
US7431760B2 · kind B2 · utility
4Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2004 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Jun 16, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B31/153
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ink containing an azo dye having, in total, at least 13 conjugated π electrons in an aromatic ring thereof that is not directly bonded to any azo group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.