US6398355B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink, ink set, ink cartridge, recording unit, image recording method and image recording apparatus
Assignee: Canon Inc
•
Filing: 1999-03-01
•
Granted: 2002-06-04
•
Expires: 2019-03-01
Abstract
Abstract The purpose is to provide such ink hardly as to affect an exothermic heater on a change in ink jet performance when used for a long-time ink jet recording according to the way to eject an ink by using an exothermic heater. The ink contains at least one substance selected from dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, and a water-soluble coloring material in an aqueous medium.
Inventors
- 👤 Koromo Shirota
- 👤 Shoji Koike
- 👤 Yutaka Kurabayashi
- 👤 Shinichi Hakamada
- 👤 Masashi Ogasawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:14
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/38
Claims Analysis
Total Claims: 67
Claim 1
Independent Claim
59 words
An ink cartridge comprising an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids; and tricarboxylates; bis-hydroxyethyl sulfone and coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink.
Claim 2
Dependent Claim
59 words
An ink cartridge comprising an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids; and tricarboxylates; bis-hydroxyethyl sulfone and coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink.
Claim 3
Dependent Claim
79 words
A recording unit comprising an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and a coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; means for giving said recording ink to a recording medium; and means for supplying said ink to said means.
Claim 4
Dependent Claim
79 words
A recording unit comprising an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and a coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; means for giving said recording ink to a recording medium; and means for supplying said ink to said means.
Claim 5
Dependent Claim
95 words
An ink set comprising a combination of ink containing at least one substance selected from dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, and a first water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; and ink containing a second coloring material, wherein each of the first and the second coloring materials is selected from the group consisting of coloring materials for yellow, magenta, cyan, black, red, blue and green.
Claim 6
Dependent Claim
95 words
An ink set comprising a combination of ink containing at least one substance selected from dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, and a first water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; and ink containing a second coloring material, wherein each of the first and the second coloring materials is selected from the group consisting of coloring materials for yellow, magenta, cyan, black, red, blue and green.
Claim 7
Dependent Claim
68 words
An image recording method having a process for giving ink to an image forming region of a to-be-recorded medium comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink.
Claim 8
Dependent Claim
68 words
An image recording method having a process for giving ink to an image forming region of a to-be-recorded medium comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink.
Claim 9
Dependent Claim
100 words
An image recording apparatus comprising a recording unit incorporating an ink housing section housing ink comprising at least one substance selected from the group of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and a water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink, means for giving said ink to a to-be-recorded medium and means for supplying said ink to said means; and means for actuating the recording unit in response to a recording signal.
Claim 10
Dependent Claim
100 words
An image recording apparatus comprising a recording unit incorporating an ink housing section housing ink comprising at least one substance selected from the group of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and a water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink, means for giving said ink to a to-be-recorded medium and means for supplying said ink to said means; and means for actuating the recording unit in response to a recording signal.
Claim 11
Dependent Claim
96 words
An image recording apparatus comprising a recording unit incorporating an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and a coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink, means for giving said ink to a to-be-recorded medium and means for supplying said ink to said means; and means for actuating the recording unit in response to a recording signal.
Claim 12
Dependent Claim
96 words
An image recording apparatus comprising a recording unit incorporating an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone and a coloring material wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink, means for giving said ink to a to-be-recorded medium and means for supplying said ink to said means; and means for actuating the recording unit in response to a recording signal.
Claim 13
Dependent Claim
95 words
An image recording method having a process for giving ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, urea and a water-soluble coloring material. in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink, to an image recording region of a recording medium by using a recording head capable of ejecting 0.1 to 40 picoliters of ink from orifices with one ejection operation.
Claim 14
Dependent Claim
95 words
An image recording method having a process for giving ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, urea and a water-soluble coloring material. in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink, to an image recording region of a recording medium by using a recording head capable of ejecting 0.1 to 40 picoliters of ink from orifices with one ejection operation.
Claim 15
Dependent Claim
129 words
An image recording apparatus comprising a recording unit incorporating an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, urea and a water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; a recording head having means for ejecting the ink from orifices to a recording medium and means for supplying said ink to said recording head wherein said recording head is capable of ejecting 0.1 to 40 picoliters of ink from orifices with one ejection operation; and means for actuating said recording unit in response to a recording signal.
Claim 16
Dependent Claim
129 words
An image recording apparatus comprising a recording unit incorporating an ink housing section housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, urea and a water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; a recording head having means for ejecting the ink from orifices to a recording medium and means for supplying said ink to said recording head wherein said recording head is capable of ejecting 0.1 to 40 picoliters of ink from orifices with one ejection operation; and means for actuating said recording unit in response to a recording signal.
Claim 17
Dependent Claim
113 words
A recording unit comprising an ink housing section for housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis hydroxyethyl sulfone, urea and a water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; a recording head having means for ejecting the ink from orifices to a recording medium; and means for supplying said ink to said recording head wherein said recording head is capable of ejecting 0.1 to 40 picoliters of ink from orifices with one ejection operation.
Claim 18
Dependent Claim
113 words
A recording unit comprising an ink housing section for housing ink comprising at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis hydroxyethyl sulfone, urea and a water-soluble coloring material in an aqueous medium wherein the total amount of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates is not greater than 0.7% by weight relative to the whole weight of ink; a recording head having means for ejecting the ink from orifices to a recording medium; and means for supplying said ink to said recording head wherein said recording head is capable of ejecting 0.1 to 40 picoliters of ink from orifices with one ejection operation.
Claim 19
Dependent Claim
62 words
An ink comprising: (i) bis-hydroxyethyl suflone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 20
Dependent Claim
62 words
An ink comprising: (i) bis-hydroxyethyl suflone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 21
Dependent Claim
19 words
The ink according to claim 10 , wherein the dicarboxylic acids include succinic acid, maleic acid and phthalic acid.
Claim 22
Dependent Claim
14 words
The ink according to claim 10 , wherein the tricarboxylic acids include citric acid.
Claim 23
Dependent Claim
27 words
The ink according to claim 10 , wherein the dicarboxylates include metal salts of the dicarboxylic acids, and the tricarboxylates include metal salts of the tricarboxylic acids.
Claim 24
Dependent Claim
14 words
The ink according to claim 13 , wherein the metal salts include sodium salts.
Claim 25
Dependent Claim
13 words
The ink according to claim 10 , wherein the aqueous medium contains water.
Claim 26
Dependent Claim
18 words
The ink according to claim 10 , wherein the aqueous medium contains water and a water-soluble organic solvent.
Claim 27
Dependent Claim
10 words
The ink according to claim 10 , further containing urea.
Claim 28
Dependent Claim
28 words
The ink according to claim 10 , wherein the coloring material is a dye having one or more COOM (M is alkali metal or ammonium) in the molecule.
Claim 29
Dependent Claim
16 words
The ink according to claim 18 , wherein pH of the ink is 9.5 to 12.
Claim 30
Dependent Claim
16 words
The ink according to claim 10 , wherein the coloring material is a water-soluble metal-containing dye.
Claim 31
Dependent Claim
16 words
The ink according to claim 20 , wherein pH of the ink is 3.5 to 7.5.
Claim 32
Dependent Claim
16 words
The ink according to claim 21 , wherein pH of the ink is 3.5 to 6.5.
Claim 33
Dependent Claim
12 words
The ink according to claim 10 , being for an ink-jet recording.
Claim 34
Dependent Claim
18 words
The ink according to claim 23 , wherein the ink-jet recording comprises a step of applying thermal energy.
Claim 35
Dependent Claim
72 words
An ink cartridge comprising an ink housing section housing an ink, wherein the ink comprises: (i) bis-hydroxyethyl sulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 36
Dependent Claim
72 words
An ink cartridge comprising an ink housing section housing an ink, wherein the ink comprises: (i) bis-hydroxyethyl sulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 37
Dependent Claim
89 words
A recording unit comprising: an ink housing section housing an ink; means for ejection an ink; and means for supplying the ink to the means for ejecting an ink, wherein the ink comprises: (i) bis-hydroxyethylsulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 38
Dependent Claim
89 words
A recording unit comprising: an ink housing section housing an ink; means for ejection an ink; and means for supplying the ink to the means for ejecting an ink, wherein the ink comprises: (i) bis-hydroxyethylsulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 39
Dependent Claim
36 words
The recording unit according to claim 26 , wherein the means for ejecting the ink is an ink-jet head capable of ejecting 0.1 to 40 picoliters of the ink from orifices thereof with one ejection operation.
Claim 40
Dependent Claim
108 words
An ink-set comprising: a first ink comprising; (i) bis-hydroxyethylsulfone; (ii) a first coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and a second ink comprising a second coloring material and an aqueous medium, wherein the total amount of (iv) in the first ink is not greater than 0.7% by weight relative to the whole weight of the ink, and each of the first and the second coloring materials is selected from the group consisting of coloring materials for yellow, magenta, cyan, black, red, blue and green.
Claim 41
Dependent Claim
108 words
An ink-set comprising: a first ink comprising; (i) bis-hydroxyethylsulfone; (ii) a first coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and a second ink comprising a second coloring material and an aqueous medium, wherein the total amount of (iv) in the first ink is not greater than 0.7% by weight relative to the whole weight of the ink, and each of the first and the second coloring materials is selected from the group consisting of coloring materials for yellow, magenta, cyan, black, red, blue and green.
Claim 42
Dependent Claim
82 words
An image recording method comprising a step of ejecting an ink to a recording medium with an ink-jet head, wherein the ink comprises: (i) bis-hydroxyethylsulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 43
Dependent Claim
82 words
An image recording method comprising a step of ejecting an ink to a recording medium with an ink-jet head, wherein the ink comprises: (i) bis-hydroxyethylsulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 44
Dependent Claim
31 words
The image recording method according to claim 29 , wherein the in k-jet head is capable of ejecting 0.1 to 40 picoliters of ink from an orifice with one ejection operation.
Claim 45
Dependent Claim
22 words
The image recording method according to claim 29 , wherein the ink is ejected by applying thermal energy with the ink-jet head.
Claim 46
Dependent Claim
112 words
An image recording apparatus comprising: a recording unit having; an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recording signal, wherein the ink comprises; (i) bis-hydroxyethyl sulfone; (ii) a water-soluble coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 47
Dependent Claim
112 words
An image recording apparatus comprising: a recording unit having; an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recording signal, wherein the ink comprises; (i) bis-hydroxyethyl sulfone; (ii) a water-soluble coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 48
Dependent Claim
111 words
An image recording apparatus comprising: a recording unit having; an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recording signal, wherein the ink comprises; (i) bis-hydroxyethyl sulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 49
Dependent Claim
111 words
An image recording apparatus comprising: a recording unit having; an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recording signal, wherein the ink comprises; (i) bis-hydroxyethyl sulfone; (ii) a coloring material; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the coloring material, and wherein the total amount of (iv) in the ink is not greater than 0.7% by weight relative to the whole weight of the ink.
Claim 50
Dependent Claim
55 words
The image recoding apparatus according to claim 31 or claim 32 , wherein the means for ejecting an ink is an ink-jet head provided with orifices from which the ink is ejected, and wherein the ink-jet head is capable of ejection 0.1 to 40 picoliters of an ink from the orifices with one ejection operation.
Claim 51
Dependent Claim
39 words
An ink-jet ink comprising: (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 52
Dependent Claim
39 words
An ink-jet ink comprising: (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 53
Dependent Claim
19 words
The ink according to claim 35 , wherein the dicarboxylic acids include succinic acid, maleic acid and phthalic acid.
Claim 54
Dependent Claim
14 words
The ink according to claim 35 , wherein the tricarboxylic acids include citric acid.
Claim 55
Dependent Claim
22 words
The ink according to claim 35 , wherein the dicarboxylates and tricarboxylates include metal salts of the dicarboxylic acids and tricarboxylic acids.
Claim 56
Dependent Claim
14 words
The ink according to claim 38 , wherein the metal salts include sodium salts.
Claim 57
Dependent Claim
27 words
The ink according to claim 35 , wherein the content of (i) ranges from 0.1 to 30% by weight relative to the whole weight of the ink.
Claim 58
Dependent Claim
50 words
An ink cartridge comprising an ink housing section housing an ink, wherein the ink comprises; (i) bis-hydroxyethylsulfone; (ii) a water soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 59
Dependent Claim
50 words
An ink cartridge comprising an ink housing section housing an ink, wherein the ink comprises; (i) bis-hydroxyethylsulfone; (ii) a water soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 60
Dependent Claim
80 words
A recording unit comprising: an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recoding signal, wherein the ink comprises; (i) bis-hydroxyethylsulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 61
Dependent Claim
80 words
A recording unit comprising: an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recoding signal, wherein the ink comprises; (i) bis-hydroxyethylsulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 62
Dependent Claim
107 words
An ink set comprising: a first ink comprising; (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye, and a second ink comprising a coloring material and an aqueous medium, wherein the water-soluble dye in the first ink is selected from the group consisting of water-soluble dyes for yellow, magenta, cyan, black, red, blue and green, and the coloring material in the second ink is selected from the group consisting of coloring materials for yellow, magenta, cyan, black, red, blue and green.
Claim 63
Dependent Claim
107 words
An ink set comprising: a first ink comprising; (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye, and a second ink comprising a coloring material and an aqueous medium, wherein the water-soluble dye in the first ink is selected from the group consisting of water-soluble dyes for yellow, magenta, cyan, black, red, blue and green, and the coloring material in the second ink is selected from the group consisting of coloring materials for yellow, magenta, cyan, black, red, blue and green.
Claim 64
Dependent Claim
54 words
An image recording method comprising a step of ejecting an ink with an ink-jet head, wherein the ink comprises (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 65
Dependent Claim
54 words
An image recording method comprising a step of ejecting an ink with an ink-jet head, wherein the ink comprises (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 66
Dependent Claim
86 words
An image recording apparatus comprising a recording unit having an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recording signal, wherein the ink comprises (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
Claim 67
Dependent Claim
86 words
An image recording apparatus comprising a recording unit having an ink housing section housing an ink; means for ejecting the ink; and means for supplying the ink to the means for ejecting the ink, and means for actuating the recording unit in response to a recording signal, wherein the ink comprises (i) bis-hydroxyethyl sulfone; (ii) a water-soluble dye; (iii) an aqueous medium; and (iv) at least one substance selected from the group consisting of dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates; other than the water-soluble dye.
References Cited (Backward Citations)
JPS5459936A
Cited
JPH03160070A
Cited
JP3160070B2
Cited
US5734403A
Cited
US5902387A
Cited
EP0617161A1
Cited
US5540764A
Cited
JPH0880664A
Cited
US5549740A
Cited
US5764261A
Cited
US5928388A
Cited
US5952414A
Cited
US5782967A
Cited
EP0779344A1
Cited
JPH09151345A
Cited
JPH1095107A
Cited
US5997124A
Cited
US5997623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-06-03 | 2005-12-03 | 2006-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-06-03 | 2009-12-03 | 2010-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-06-03 | 2013-12-03 | 2014-06-04 | $7700.00 | Window Closed / Lapsed |