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| Number | Title | Issue Date |
| 7985287 | Anthrapyridone compound or a salt thereof, magenta ink composition containing the anthrapyridone compound and colored product The present invention relates to a novel anthrapyridone compound represented by the following formula (1) or a salt thereof: wherein, R1 represents a hydrogen atom, an alkyl group or the like, R2 repre... | 07/26/2011 |
| 7981204 | Porphyrazine coloring matter and ink composition containing the same The present invention relates to a porphyrazine coloring matter represented by the following formula (1) or a salt thereof: wherein, the rings A, B, C and D shown by broken lines each independently represent a 6-membered ri... | 07/19/2011 |
| 7922799 | Phthalocyanines and their use in ink-jet printing Compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represen... | 04/12/2011 |
| 7909926 | Ink composition and colored product The present invention relates to an ammonium salt or a sodium salt of an anthrapyridone compound represented by the following the formula (1): and an ink composition containing these; said compound has a hue with high vivid... | 03/22/2011 |
| 7871464 | Anthrapyridone compound or salt thereof, magenta ink composition and colored product The present invention relates to an anthrapyridone compound represented by the following formula (1): wherein, n represents an integer number of 1 to 3, R1 represents a hydrogen atom, an alkyl group or the like, ... | 01/18/2011 |
| 7854797 | Porphyrazine coloring matter, ink, ink set, and colored product The present invention relates to a porphyrazine coloring matter represented by the following formula (1) or a salt thereof; wherein, each of the rings A to D independently represents a benzene ring or a 6-membered nitrogen-... | 12/21/2010 |
| 7828886 | Anthrapyridone dyes and their preparation and use Anthrapyridone dyes of general formula (III) wherein X, R1, R2, R3, R4, M and n are as defined in the specification, are excellent magenta dyes for dying and printing cellulose co... | 11/09/2010 |
| 7794532 | Magenta dyes and their use in ink- jet printing A water-soluble dye of the Formula (1): D1-L-D2 Formula (1) wherein D1 and D2 each independently is an anthrapyridone, anthrapyrazole, anthrapyrimidine or anthrapyrimidone group; and L is a single... | 09/14/2010 |
| 7785411 | Anthrapyridone compound or salt thereof, magenta ink composition and colored product The present invention relates to a novel anthrapyridone compound represented by the following formula (1) or a salt thereof and provides a magenta coloring matter having a very vivid hue suitable for inkjet recording, being strong in fastnesses of recorded matters, ... | 08/31/2010 |
| 7740695 | Ink set, ink cartridge, inkjet recording method, and recorded matter An ink set containing at least a yellow ink composition, a magenta ink composition, and a cyan ink composition: said magenta ink composition containing as a colorant at least one type of compound expressed by the formula M-1 in cla... | 06/22/2010 |
| 7736427 | Inkset, ink cartridge, inkjet recording method, and recorded matter An inkset comprising at least a yellow ink composition, two types of magenta ink compositions of different color density, and a cyan ink composition: the magenta ink composition containing as a colorant at least one type of compoun... | 06/15/2010 |
| 7731788 | Inkset, ink cartridge, inkjet recording method, and recorded matter An ink set including at least a yellow ink composition, a magenta ink composition, and a cyan ink composition; the magenta ink composition containing as a colorant at least one type of compound expressed by the Formula M-1 in claim 1; the yellow ink compositi... | 06/08/2010 |
| 7727320 | Anthrapyridone compound, magenta ink composition and colored matter The present invention relates to an anthrapyridone compound represented by the following Formula (1) wherein, R represents a hydrogen atom, an alkyl group, a hydroxy lower alkyl group, a cyclohexyl group, a mono- or dialkyl... | 06/01/2010 |
| 7717990 | Multi-color inkjet ink set to prevent color bleeding A multi-color inkjet ink set includes a first ink composition including a first colorant and a heterocyclic amine compound, and a second ink composition include a second colorant having an, in which the acid moiety of the second colorant within the second ink compos... | 05/18/2010 |
| 7717991 | Inkjet ink, method for producing the same, ink cartridge, and inkjet recording method An inkjet ink contains at least one coloring material selected from the group of C. I. Direct Violet 107, C. I. Acid Red 14, C. I. Acid Red 52, C. I. Acid Red 87, C. I. Acid Red 289 and C. I. Reactive Red 180, and a coloring material including a compound expressed b... | 05/18/2010 |
| 7691191 | Anthrapyridone compound, salt thereof, magenta ink composition and colored product The present invention relates to a novel anthrapyridone compound represented by the following formula (1) or a salt thereof, and can provide a magenta coloring matter having a highly vivid hue suitable for inkjet recording, a high fastness to recorded matters, and a... | 04/06/2010 |
| 7678185 | Anthrapyridone compound or salt thereof, magenta ink composition containing the same, and colored product The present invention relates to an anthrapyridone compound represented by the following formula (1): wherein, R represents a hydrogen atom, an alkyl group, a hydroxy lower alkyl group, a cyclohexyl group or a (mono- or di-... | 03/16/2010 |
| 7618484 | Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus The present invention provides an ink jet ink having a magenta color which gives an image excellent in magenta color tone and also excellent in image fastness (lightfastness and gas resistance). The ink jet ink includes a first coloring material that is an anthrapyr... | 11/17/2009 |
| 7615113 | Ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus It is an object to provide an ink that forms an image which is superior in color developability, has high environmental gas resistance, and further has superior bronze resistance. The ink comprising at least a coloring material is wherein the coloring material compr... | 11/10/2009 |
| 7611571 | Ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus An ink having a cyan color is provided which can form images excellent in ozone resistance in such a high level as to exceed anticipation and having a preferable color tone. The ink includes at least two coloring materials of a first coloring material and a second c... | 11/03/2009 |
| 7591888 | Porphyrazine coloring matter, ink, ink set and colored article The present invention relates to a porphyrazine coloring matter represented by the following formula (1): (wherein, A, B, C and D independently represent a 6-membered ring having aromaticity, at least one or more of them ar... | 09/22/2009 |
| 7585361 | Porphyrazine coloring matter, ink, ink set and colored product The present invention relates to a porphyrazine coloring matter represented by the following formula (1): (wherein, A, B, C and D independently represents a 6-membered ring having aromaticity, at least one or more is a benz... | 09/08/2009 |
| 7575627 | Phthalocyanines and their use in ink-jet printing A mixture of dyes of Formula (1) and salts thereof; wherein M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula (2); R1 is methyl; R2 is H or methyl; R3 | 08/18/2009 |
| 7575626 | Phthalocyanines and their use in ink-jet printers A mixture of dyes of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocya... | 08/18/2009 |
| 7556680 | Ink composition An ink composition includes a colorant, a solvent, and an amide compound. Due to the use of the amide compound, the ink composition has effective storage stability and wetness at nozzles and has a low mobility of a colorant due to interaction between the colorant an... | 07/07/2009 |
| 7520927 | Liquid ink for ink jet and ink jet recording method using the ink There are provided: a liquid ink for ink jet including: water; a coloring material; 1,5-pentanediol; and a humectant, in which the content of 1,5-pentanediol is 3 mass % or more and 15 mass % or less, and the total of the content of 1,5-pentanediol and the content o... | 04/21/2009 |
| 7510604 | Cyan ink for ink jet and ink jet recording method There is provided a cyan ink for ink jet and an ink jet recording method using the same, which can reduce both reciprocating color uneven and beading without impairing fastness property even when a yellow ink or a magenta ink containing a specific coloring material ... | 03/31/2009 |
| 7476270 | Ink-jet ink formulations containing magnesium sulfate An ink-jet ink comprises an aqueous liquid vehicle, at least 1% by weight colorant; and a black-to-color bleed control enhancing amount of magnesium sulfate or hydrate thereof. ... | 01/13/2009 |
| 7445666 | Ink jet ink, ink jet recording method, ink cartridge, ink set and image forming method An ink jet ink which can form images whose bleeding resistance is high and whose bronzing phenomenon is suppressed, is provided. The ink is an ink jet ink for use together with a pigment ink. The ink jet ink is characterized in that: the ink jet ink contains a color... | 11/04/2008 |
| 7435291 | Amine- and phthalocyanine dye-containing ink-jet inks with improved ozone fastness In accordance with embodiments of the present invention, an ink-jet ink can comprise a metallized phthalocyanine dye and a liquid vehicle carrying the dye. The liquid vehicle can include an amine additive present in the ink-jet ink at an effective concentration to c... | 10/14/2008 |
| 7419537 | Phthalocyanine colorant and use thereof for ink-jet printing The present invention relates to a phthalocyanine colorant characterized in that it has, as substituents, at least one unsubstituted sulfamoyl group and at least one substituted sulfamoyl group, the total number of these groups being 2 to 4, the substituent on the s... | 09/02/2008 |
| 7416591 | Disperse dye mixtures Dye mixtures comprising one or more dyes of the herein below indicated and defined formula (I), and at least one of the herein below indicated and defined general dye of: formula (II), or one or more dyes of formula (III) or one or more dyes of formula (IV), or one ... | 08/26/2008 |
| 7416592 | Magenta ink composition, ink set, ink cartridge, inkjet recording method and recorded product A magenta ink composition used as a colorant, containing at least one type of compound represented by Formula (I) below and at least one type of compound represented by Formula (II) below: (wherein A represents the residue ... | 08/26/2008 |
| 7407540 | Coloring liquid, ink tank, recording unit, recording apparatus and recording method A coloring liquid can form an image showing a high color developability and a high vividness as well as an excellent water fastness when used as recording material with a recording technique such as ink-jet printing. An ink tank, a recording unit, a recording appara... | 08/05/2008 |
| 7399349 | Sheet for ink jet recording, ink for ink jet recording, manufacturing method of ink for ink jet recording, ink set for ink jet recording, and ink jet recording method An ink for ink jet recording, which hardly causes blotting of an image even under high humidity conditions while maintaining the advantages as water-based ink (handling properties, stability, producing properties, hue), is provided. Also provided is a method of manu... | 07/15/2008 |
| 7396398 | Ink composition An ink composition is provided including an amide compound represented by formula I, a coloring agent and a solvent. The amide compound and the polyhydric alcohol in the ink composition decrease the mobility of coloring agents and increase the adhesion to media, the... | 07/08/2008 |
| 7396399 | Bipyridine-based metal complex and ink composition comprising the same A bipyridine-based metal complex includes a complex of bipyridine-based ligands and metals, and is utilized in an ink composition. The bipyridine-based metal complex may be used alone, as well as in combination with other coloring agents. ... | 07/08/2008 |
| 7393403 | Process for preparing self-dispersible coloring agent using lewis acids and ink composition comprising the coloring agent A self-dispersible coloring agent represented by formula (II) below is prepared by incorporating a hydrophilic group into a coloring agent through a reaction of a hydrophilic group-containing halide represented by formula (I) below and the coloring agent in the pres... | 07/01/2008 |
| 7387668 | Azo compound, aqueous dye solutions containing the same, inks and use thereof An azo compound which is reduced in the copper ion content and exhibits hue and clarity suitable for ink-jet recording and which can give records having excellent light fastness, water resistance, and moisture proofness, and such ozone resistance as to control the f... | 06/17/2008 |
| 7384463 | Phase change ink containing amphiphilic molecule Phase change ink comprising an ink vehicle that includes at least one amphiphilic molecule. The amphiphilic molecule is capable of co-crystallizing into the at least one wax monomer to form functionalized spherulites which are then capable of hydrogen bonding to oth... | 06/10/2008 |
