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US 6,548,649 B2Granted
Compound, dye, ink and ink-jet recording method
AssigneeFuji Photo Film Co., Ltd.
InventorsHisashi Mikoshiba, Tadashi Omatsu, Makoto Suzuki, Koushin Matsuoka, Masuji Motoki
Life of this patent
Estimating the term…
Abstract
A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion.
Claims5
A compound represented by the following general formula (II):
- wherein, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group;
- m and n each independently represents one of 0 and 1;
- M represents one of a hydrogen atom and a monovalent positive ion, which A and B are not both 1H-pyrazole-3-yl at the same time.
Dependencies are inferred from the claim text.