| 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 |
| 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. |
| 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 |
| 4620876 |
Aqueous ink for ink-jet printing |
November 4, 1986 |
| An aqueous ink for ink-jet printing comprising at least a water-soluble dye, a water-soluble organic solvent, a water-soluble preservative and anti-mold agent, and water, wherein(1) the water-soluble dye is a mixture of dye compounds I and II and/or III, the peak ratio of I/II and/or III |
| 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 |
| 4571057 |
Transfer medium separation in a recording apparatus |
February 18, 1986 |
| A recording apparatus includes an image bearing or forming drum which is driven to rotate in a predetermined direction at constant speed. As the drum rotates, an image is formed on its peripheral surface electrostatically or electrophotographically. The image, developed or undevelope |
| 4554555 |
Recording method by use of inks |
November 19, 1985 |
| A recording method by use of an ink is disclosed, in which images are formed by an aqueous ink comprising at least one dye selected from the group consisting of a pyrazolone azo dye, a phthalocyanine sulfonate dye, a xanthene dye and an azo dye on a recording medium containing at least |
| 4467332 |
Process for regenerating ink sheet |
August 21, 1984 |
| A process for regenerating an ink sheet which comprises disposing an electrodepositing electrode in contact with a base layer of a used ink sheet comprised of a base layer and an ink layer superimposed on one side of said base layer, said ink layer having hollowed parts therein; disp |
| 4348470 |
Electrophotographic element containing disazo compounds |
September 7, 1982 |
| The present invention provides an electrophotographic element which comprises a charge generating layer and a charge transport layer formed, in order, on an electroconductive substrate, said charge generating layer comprising a disazo pigment expressed by the general formula: ##STR1# |
| 4301224 |
Electrophotographic element with a combination of binder resins |
November 17, 1981 |
| An electrophotographic element comprising, in successive layers; a conductive substrate, a charge generation layer and a charge transport layer, the charge generation layer being formed by the steps of; adding to a dispersion comprising a photoconductive organic pigment, a solvent and a |
