| Patent Number |
Title Of Patent |
Date Issued |
| RE33155 |
Aqueous ink for ink jet printing |
January 30, 1990 |
| An aqueous ink is disclosed, which comprises a first magenta dye having the formula (I), a second magenta dye having the formula (II), a water-soluble organic solvent having a boiling point of 100.degree. C. or higher, water and a preservative and anti-mold agent: ##STR1## wherei |
| 4793860 |
Aqueous ink composition |
December 27, 1988 |
| An aqueous ink composition comprises (a) a dye having formula (I) in an amount of 0.5 to 6.0 wt. %, in which 20% or more of the total of the cations of --SO.sub.3 X and --OX groups directly connected to the aromatic rings thereof is replaced by Li.sup.+ ion or a quaternary ammonium ion, |
| 4740420 |
Recording medium for ink-jet printing |
April 26, 1988 |
| A recording medium for ink-jet printing comprising a support material containing at least in the surface portion thereof a water-soluble metal salt with the ion valence of the metal thereof being 2 to 4 and a cationic organic material. |
| 4737190 |
Aqueous ink composition for ink-jet recording |
April 12, 1988 |
| An aqueous ink composition for ink-jet recording comprising an aqueous solution of a water-soluble dye of formula (I) and a humectant dissolved in water: ##STR1## wherein R.sup.1 and R.sup.2 each represent hydrogen, an alkyl group, an alkoxy group, halogen, a carboxyl group or a |
| 4713113 |
Aqueous ink composition for ink-jet recording |
December 15, 1987 |
| An aqueous ink composition for ink-jet recording comprising an aqueous solution of a water-soluble dye of formula (I) and a humectant dissolved in water: ##STR1## wherein R.sup.1 and R.sup.2 each represent hydrogen, an alkyl group, an alkoxy group, halogen, a carboxyl group or a |
| 4711668 |
Aqueous ink composition |
December 8, 1987 |
| An aqueous ink composition comprising a water-soluble dye having the formula (I) in an amount sufficient for ink printing and water, ##STR1## wherein R.sup.1 and R.sup.2 each represent hydrogen, a lower alkyl group, a lower alkoxy group or halogen; R.sup.3 represents hydrogen, a lowe |
| 4680235 |
Recording material for ink jet printing |
July 14, 1987 |
| A recording material for ink jet printing for forming images thereon with an ink composition by ink jet printing is disclosed, which comprises a base material and a surface recording layer formed thereon, the surface recording layer contains at least a surface active agent which does not |
| 4647310 |
Aqueous ink composition for ink jet-recording |
March 3, 1987 |
| An aqueous ink composition for ink-jet recording comprising an aqueous solution of a water-soluble dye of formula (I) and a humectant dissolved in water: ##STR1## wherein Ar represents an unsubstituted or substituted phenyl group, or an unsubstituted or substituted naphthyl group |
| 4631085 |
Aqueous ink composition for ink-jet recording |
December 23, 1986 |
| An aqueous ink composition for ink-jet recording comprising an aqueous solution of a water-soluble dye of formula (I) and a humectant dissolved in water: ##STR1## wherein R.sup.1 represents ##STR2## wherein R.sup.4 represents an alkyl group or a hydroxyalkyl group; R.sup.2 |
| 4581071 |
Aqueous ink for ink jet printing |
April 8, 1986 |
| An aqueous ink is disclosed, which comprises a first magenta dye having the formula (I), a second magenta dye having the formula (II), a water-soluble organic solvent having a boiling point of 100.degree. C. or higher, water and a preservative and anti-mold agent: ##STR1## wherei |
