Five-ring Members In The Heterocyclic Ring Patents (Class 106/31.49)
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Publication number: 20080110369Abstract: A compound of Formula (1) in the free acid or salt form: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus of formula; each R1 and R2 independently is H, optionally substituted alkyl or optionally substituted aryl; each R3 independently is optionally substituted alkyl or optionally substituted aryl; each n independently is 1 or 2; x is 0 to 2; y is 0.1 to 2.5; x is 0.1 to 2.5; and the sum (x+y+z) is 2.2 to 4. Also compositions, ink jet printer inks, cartridges and processes and printed materials.Type: ApplicationFiled: October 21, 2005Publication date: May 15, 2008Inventors: John Mayall, Prakash Patel
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Publication number: 20080087192Abstract: An IR-absorbing phthalocyanine dye suitable for formulation in a solvent-based or oil-based ink vehicle is disclosed. The phthalocyanine comprises one or more sulfonate groups and a counterion of at least one sulfonate group is a phosphonium cation. Phosphonium salts of sulfonated gallium naphthalocyanines exemplify such dyes.Type: ApplicationFiled: September 4, 2007Publication date: April 17, 2008Inventors: Scott Matthew Starling, Simone Charlotte Vonwiller, Damon Donald Ridley, Kia Silverbrook
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Publication number: 20080036838Abstract: An ink composition for inkjet recording, and more particularly, an ink composition for inkjet recording in which bleeding between colors of a printed image is reduced, and dry and wet rub fastness of a printed image are improved. The ink composition includes an oxylate-based compound and an amide compound.Type: ApplicationFiled: November 30, 2006Publication date: February 14, 2008Inventors: In-hye Kim, Jong-in Lee
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Patent number: 7329632Abstract: Provided are a thermal transfer yellow ink and a thermal transfer sheet capable of providing a thermal transfer recorded product exhibiting a clear yellow tone with a high density by low energy and having an excellent color tone and light resistance, and also capable of exhibiting a favorable green color tone with a high density when mixed with cyan. Provided are a dye composition characterized by comprising a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton; a thermal transfer ink characterized by comprising a dye having an arylidene pyrazolone skeleton, a dye having a bispyrazolone methine skeleton, and a medium; and a thermal transfer sheet comprising a substrate and a colorant layer formed thereon, wherein the colorant layer comprises a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton.Type: GrantFiled: May 10, 2006Date of Patent: February 12, 2008Assignee: Mitsubishi Chemical CorporationInventor: Mio Ishida
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Patent number: 7329314Abstract: An ink for ink-jet recording includes a solvent dye in which a xanthene structure and a phthalide structure are spiro bound to each other. When the ink is stored in an ink cartridge containing a polyurethane foam and ink-jet recording is performed, a stable printing density may be achieved and changes in hue may be avoided.Type: GrantFiled: March 2, 2007Date of Patent: February 12, 2008Assignee: Brother Kogyo Kabushiki KaishaInventors: Hiromitsu Sago, Michiko Aoyama
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Patent number: 7326287Abstract: A composition comprising: (a) a major dye component which is a mixture of copper phthalocyanine dyes of Formula (1): CuPc?-(SO3M)x?-(SO2NH2)y??Formula (1) wherein: Pc represents a phthalocyanine nucleus of formula; M is a cation; x and y each independently have an average value of from 0.5 to 3.5; (x+y)=4; and the sulfo and sulfonamide substituents are attached to a ?-position on the phthalocyanine ring; and (b) a liquid medium which comprises water and an organic solvent or an organic solvent free from water. Also ink-jet printing processes, printed images, ink-jet printers and ink-jet cartridges.Type: GrantFiled: July 2, 2004Date of Patent: February 5, 2008Assignee: Fujifilm Imaging Colorants LimitedInventor: Prakash Patel
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Publication number: 20080022895Abstract: Problem to be Solved: To provide an ink composition capable of giving printed matter excellent in gas fastness and light fastness and free from generation of a bronzing phenomenon, an inkjet recording method using the ink composition, and recorded matter which is recorded by the recording method. Means to Solve the Problem: An ink composition comprising at least water, a cyan dye represented by the formula shown below and an aromatic compound having a carboxyl group and/or a salt thereof; an inkjet recording method using the composition; and recorded matter which is recorded by the recording method.Type: ApplicationFiled: September 30, 2004Publication date: January 31, 2008Inventors: Yasuhiro Oki, Kazuhiko Kitamura, Hiroko Hayashi, Keiichi Tateishi, Shigeaki Tanaka, Yoshiharu Yabuki
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Patent number: 7316739Abstract: The ink set of the present invention provides a high ejection stability, gives an image having an excellent hue, light-resistance and waterproofness and improves the image preservability under severe conditions in ink jet recording, in which the ink set comprising a plurality of inks different in hues, wherein the plurality of inks includes a yellow ink containing a coloring agent that is a dye having: a ?max of from 390 nm to 470 nm; an I(?max+70 nm)/I(?max) ratio of not greater than 0.4, in which I(?max) is the absorbance at ?max and I(?max+70 nm) is the absorbance at (?max+70 nm); and a forced fading rate constant of not greater than 5.0×10?2 [hour?1], an ink cartridge having the ink set received therein, an ink jet printer comprising the ink cartridge mounted therein and an image recording method.Type: GrantFiled: February 24, 2006Date of Patent: January 8, 2008Assignee: FUJIFILM CorporationInventors: Toshiki Taguchi, Yoshiharu Yabuki, Toru Harada, Naotaka Wachi
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Patent number: 7314510Abstract: The present invention provides an ink jet liquid composition including chitosan and a non-volatile organic acid. The non-volatile organic acid preferably has two or more carboxyl groups and a cyclic structure other than an aromatic ring. Further, the invention provides an ink jet recording method of forming images on a recording medium surface by ejecting an ink and a liquid composition thereon so that the ink and the liquid are in contact with each other, wherein the ink contains a colorant, the liquid composition contains a component for coagulating the colorant, and the component for coagulating the colorant contains chitosan and a non-volatile organic acid.Type: GrantFiled: September 14, 2004Date of Patent: January 1, 2008Assignee: Fuji Xerox Co., Ltd.Inventor: Hiroyuki Ueki
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Patent number: 7314273Abstract: A process for preparing a mixture of copper phthalocyanine dyes of Formula (1): CuPc(SO3M)x(SO2NH2)y, wherein: CuPc is copper phthalocyanine; M is a cation; x and y each independently have a value of from 0.5 to 3.5; and (x+y)=2 to 5; which process includes: chlorosulphonating a copper phthalocyanine compound using a chlorosulphonating agent; and condensing the product of step (i) with ammonia to give a mixture of copper phthalocyanine dyes of Formula (1); optionally exchanging the cation M in the mixture of copper phthalocyanine dyes of Formula (1) resulting from step (ii) for an alternative cation M; wherein the chlorosulphonating agent includes a mixture of chlorosulphonic acid and a chlorinating agent selected from phosphorous oxychloride and phosphorous trichloride.Type: GrantFiled: February 13, 2003Date of Patent: January 1, 2008Assignee: Fujifilm Imaging Colorants LimitedInventors: Colin Dick Robertson, Jill Louise Johnson, Prakash Patel
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Patent number: 7314511Abstract: A phthalocyanine compound of Formula (I) wherein M is an oxymetal group, methods and uses involving these compoundsType: GrantFiled: July 30, 2003Date of Patent: January 1, 2008Assignee: Fujifilm Imaging Colorants LimitedInventors: James Stanley Campbell, Kathryn Carr, Russell Jon Griffiths
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Publication number: 20070281139Abstract: A document uses a chemically reactive security ink to facilitate security, making it more difficult to alter a genuine security document. The chemically reactive security ink masks a warning word or message on a security document. The hidden warning word or message is revealed when the document is subjected to chemical washing.Type: ApplicationFiled: May 29, 2007Publication date: December 6, 2007Applicant: THE STANDARD REGISTER COMPANYInventors: Rajendra Mehta, Steven L. Yeager, Stephen D. Webendorfer
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Patent number: 7303618Abstract: An ink for ink-jet recording is provided in which copper phthalocyanine dyes and a thiazole-based compound are used. In this ink, the mildew resistant properties are not impaired, and the ink exhibits excellent ozone resistance. Furthermore, the formation of a precipitate is prevented in the ink although the thiazole-based compound is used. In the ink for ink-jet recording, as copper phthalocyanine dyes, two types of dyes are used together with a thiazole-based compound. Furthermore, about 1 mol % to about 20 mol % of the total counter ions in the two types of copper phthalocyanine dyes are ammonium ions or organic ammonium ions.Type: GrantFiled: February 15, 2007Date of Patent: December 4, 2007Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasuhiro Taga, Tomoyo Hamajima, Masaya Fujioka, Kazuma Goto
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Patent number: 7303616Abstract: It is an object of the present invention to provide an ink composition using a metal phthalocyanine type cyan dye, according to which the indoor storability (gas resistance) of images created using the ink composition can be improved. The present invention provides an ink composition containing water, metal phthalocyanine type cyan dye, and aromatic compound having a sulfo group and/or salt thereof represented by undermentioned general formula (1) and/or (2). Moreover, the present invention provides an ink jet recording method comprising carrying out recording by discharging droplets of an ink composition and attaching the droplets to a recording medium, wherein the ink jet recording method uses an ink composition as described above as the ink composition. Furthermore, the present invention provides a recorded article characterized by being obtained by recording using an ink composition as described above.Type: GrantFiled: September 28, 2004Date of Patent: December 4, 2007Assignee: Seiko Epson CorporationInventors: Yasuhiro Oki, Kazuhiko Kitamura, Hiroko Hayashi
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Patent number: 7303615Abstract: There is provided a colorant material comprising a compound represented by at least one of the following general formulas (1) and (2) as a first colorant compound and at least one of a water insoluble triphenylmethane compound and a water insoluble xanthene compound as a second colorant compoundType: GrantFiled: February 24, 2005Date of Patent: December 4, 2007Assignee: Canon Kabushiki KaishaInventors: Yuko Yamagishi, Yasuaki Murai, Takeshi Miyazaki
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Patent number: 7303617Abstract: An ink for ink-jet recording is provided in which C. I. Direct Blue 199 and a thiazole-based compound are used. In this ink, about 1 mol % to about 20 mol % of the total counter ions in C. I. Direct Blue 199 are ammonium ions or organic ammonium ions.Type: GrantFiled: February 15, 2007Date of Patent: December 4, 2007Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasuhiro Taga, Tomoyo Hamajima, Masaya Fujioka, Kazuma Goto
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Patent number: 7300503Abstract: A phthalocyanine dye mixture having a specific structure, an ink using the dye mixture, an inkjet recording ink, an inkjet recording method and a method for improving preservability of image formed are provided.Type: GrantFiled: July 20, 2005Date of Patent: November 27, 2007Assignee: Fujifilm CorporationInventors: Keiichi Tateishi, Yoshiharu Yabuki, Shigeaki Tanaka
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Patent number: 7297198Abstract: An ink for ink-jet recording is provided in which a copper phthalocyanine dye is used and a thiazole-based compound is also used. In this ink, the mildew resistant properties are not impaired. Furthermore, the ink exhibits excellent ozone resistance, and the formation of a precipitate is prevented in the ink although the thiazole-based compound is used. In the ink for ink-jet recording containing the copper phthalocyanine dye and the thiazole-based compound, the used copper phthalocyanine dye has a specific structure, and about 1 mol % to about 20 mol % of the total counter ions of the dye are ammonium ions or organic ammonium ions.Type: GrantFiled: February 15, 2007Date of Patent: November 20, 2007Assignee: Brother Kogyo Kabushiki KaishaInventors: Yasuhiro Taga, Tomoyo Hamajima, Masaya Fujioka, Kazuma Goto
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Patent number: 7291213Abstract: An ink composition comprising: a coloring agent having an oxidation potential of more electropositive than 1.0V (vs SCE); a water; a guanidine compound; and a surfactant, the ink composition to be used in inkjet recording and an inkjet recording method with the use of the ink composition.Type: GrantFiled: August 23, 2005Date of Patent: November 6, 2007Assignee: Fujifilm CorporationInventors: Manabu Ogawa, Keiichi Tateishi
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Patent number: 7288142Abstract: The present invention relates to a black dyes composition for ink-jet printing ink comprising (A) a compound of the following formula (I) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; (B) a compound of the following formula (II) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; and (C) a compound of the following formula (III) wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH?CH2 or —SO2CH2CH2OH; M is H, Na or Li; these compositions are particularly suitable for using in paper inkjet printing ink, and inkjet printing inks with good light-fastness and solubility are obtained.Type: GrantFiled: August 30, 2005Date of Patent: October 30, 2007Assignee: Everlight USA, Inc.Inventors: Jen-Fang Lin, Chien-Wen Lee, Tzu-Kwei Sun, Tsung-Wen Huang
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Patent number: 7282090Abstract: An ink jet ink includes at least a coloring material. The coloring material is composed of at least one selected from the group consisting of C.I.Type: GrantFiled: February 27, 2006Date of Patent: October 16, 2007Assignee: Canon Kabushiki KaishaInventors: Koichi Osumi, Sadayuki Sugama
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Patent number: 7279034Abstract: It is an object of the present invention to provide an ink composition with which the indoor storage stability (gas resistance) of an image produced with an ink composition featuring a phthalocyanine-based cyan dye can be increased without causing any additive precipitation or bronzing. The present invention provides an ink composition containing at least water, a phthalocyanine-based cyan dye, and a lithium salt of an aromatic compound having a sulfo group and expressed by General Formulas 1 and/or 2 in the claims. The present invention also provides an ink composition containing at least water, a phthalocyanine-based cyan dye, and a lithium salt of an aromatic compound having a sulfo group and expressed by General Formulas 5 and/or 6 in the claims.Type: GrantFiled: December 19, 2005Date of Patent: October 9, 2007Assignee: Seiko Epson CorporationInventors: Yasuhiro Oki, Kazuhiko Kitamura
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Patent number: 7279033Abstract: An ink-jet ink containing a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule.Type: GrantFiled: September 9, 2004Date of Patent: October 9, 2007Assignee: Fujifilm CorporationInventors: Yoshiharu Yabuki, Toshiki Taguchi, Makoto Suzuki
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Patent number: 7276111Abstract: An object of the present invention is to provide an ink composition that can improve the preservation characteristics (gas fastness) of an image produced by an ink composition which uses phthalocyanine group cyan dye. The present invention provides an ink composition wherein at least water, the phthalocyanine group cyan dye indicated by the general formula (I), and an aromatic compound having a sulfone group and/or the salt thereof represented by the general formulae (a) and/or (b) are contained; and an ink composition wherein at least water, the phthalocyanine group cyan dye indicated by the general formula (VIII), and an aromatic compound having a sulfone group and/or the salt thereof represented by the general formulae (a) and/or (b) are contained.Type: GrantFiled: January 25, 2005Date of Patent: October 2, 2007Assignee: Seiko Epson CorporationInventors: Yasuhiro Oki, Kazuhiko Kitamura
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Patent number: 7273520Abstract: Ink set for ink jet printing comprised of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the yellow ink contains a mixture of at least one yellow dye with reddish hue of formula (I), wherein R, M, R17, R18, p4, n and m are as defined in the specification and at least one yellow dye with greenish hue of formula (II), wherein R, M, R6, R7, R8, n and m are as defined in the specification.Type: GrantFiled: January 27, 2005Date of Patent: September 25, 2007Assignee: ILFORD Imaging Switzerland GmbHInventors: Jean-Luc Gremaud, Arnd Kriebel
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Patent number: 7273519Abstract: An ink set where constituent inks all are an ink containing at least one dye having an oxidation potential more positive than 1.0 V (vs SCE), particularly where the ratio k1/k2 of the fading rate constant (k1) of an image drawn by using the ink alone to the fading rate constant (k2) of a mixed color image drawn by using all constituent inks constituting the ink set in equivalent amounts with the same density measurement light as in the measurement of k1 is 0.7 to 1.3 in all inks. According the present invention, an inkjet ink set capable of giving an image having good image quality and excellent image fastness regardless of the color of image, such as aging stability, light fastness and water resistance, and an inkjet image recording method using the ink set are provided.Type: GrantFiled: March 25, 2004Date of Patent: September 25, 2007Assignee: Fujifilm CorporationInventors: Toshiki Taguchi, Manabu Ogawa
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Publication number: 20070215002Abstract: An ink for ink-jet recording includes a solvent dye in which a xanthene structure and a phthalide structure are spiro bound to each other. When the ink is stored in an ink cartridge containing a polyurethane foam and ink-jet recording is performed, a stable printing density may be achieved and changes in hue may be avoided.Type: ApplicationFiled: March 2, 2007Publication date: September 20, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hiromitsu Sago, Michiko Aoyama
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Patent number: 7270699Abstract: The invention provides an ink set for ink-jet recording that is able to form an image having a sufficient optical density and causing no feathering and intercolor bleed within a short period of time while being excellent in reliability of the maintenance unit. The ink set comprises at least a liquid (a) containing a colorant, water soluble solvent and water; a liquid (b) containing a pH adjusting agent, water soluble solvent and water; and a liquid (c). The ink set satisfies any one of the conditions in the first embodiment: (i) the colorant is anionic, (ii) the liquid (b) has a pH of not higher than 6.5, (iii) the liquid (c) has a pH of not lower than 8.0, and (iv) the mixed liquid of the liquid (b) and the liquid (c) in a mass ratio of 1:1 has a pH of not lower than 7; or the second embodiment: (i) the colorant is cationic, (ii) the liquid (b) has a pH of not lower than 8.5, (iii) the liquid (c) has a pH of not higher than 6.Type: GrantFiled: September 1, 2004Date of Patent: September 18, 2007Assignee: Fuji Xerox Co., Ltd.Inventor: Takatsugu Doi
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Patent number: 7270703Abstract: To provide a novel phthalocyanine compound, and an inkjet ink and inkjet recording method capable of an image having an excellent hue, fastness to light and ozone gas resistance. To provide various coloring compositions such as an ink sheet for heat-sensitive recording material, color toner for electrophotography, and color filter, and to provide improving method of oxidation resistance of an image. [Means for Resolution] A phthalocyanine compound substituted with —SO2NH—Z (Z represents a heterocyclic group) in at least one combination of 2 and 3, 6 and 7, 10 and 11, and 14 and 15-positions, wherein at least one of the 1 to 16-positions has two or more carbon atoms and the total number of the carbon atom thereof is 8 or more, inkjet ink using the compound, ink sheet, color toner and a color filter composition, which use the compound.Type: GrantFiled: June 21, 2002Date of Patent: September 18, 2007Assignee: Fujifilm CorporationInventors: Keiichi Tateishi, Masaki Noro, Yoshiharu Yabuki, Tadashi Omatsu
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Patent number: 7267715Abstract: An ink obtained by dissolving at least one specific dye in an aqueous medium, wherein the dyes contained in the ink all have a solubility of 15 g or more in 100 g of water at 25° C. under atmospheric pressure; and an ink set formed from the ink. The dye is preferably a dye having an oxidation potential of 1.0 V (vs SCE) or more, more preferably a specific azo dye having a heterocyclic group of a specific structure or an aromatic group which is bound directly to an azo group, or a specific phthalocyanine dye having a water-soluble group as a substitunet. According to the present invention, an ink, specifically an inkjet ink, and an ink set, which can print an image without disorder or beading due to ejection failure and ensure excellent ejection stability and durability, is provided.Type: GrantFiled: March 26, 2004Date of Patent: September 11, 2007Assignee: Fujifilm CorporationInventors: Toshiki Taguchi, Naotaka Wachi
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Patent number: 7264662Abstract: The present invention is drawn to ink sets ink-jet imaging, including ink sets having six ink-jet inks. In one embodiment, the ink set can comprise a black ink including a first organic solvent system, a cyan ink including a second organic solvent system, a magenta ink including a third organic solvent system, and a yellow ink including a fourth organic solvent system. In this embodiment, at least two of the organic solvent systems are different. The first organic solvent system can include a first organic solvent and a second organic solvent. The second and third organic solvent systems can include the first organic solvent and a third organic solvent. The fourth organic solvent system can include the second organic solvent and a fourth organic solvent. These solvent systems, and others, can also be used to prepare various dye sets that are dye specific.Type: GrantFiled: March 9, 2005Date of Patent: September 4, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Tye Dodge, Hiang P Lauw, Linda C. Uhlir-Tsang, Mary E Austin, Zia Rehman, Matthew Thornberry
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Patent number: 7264663Abstract: Ink set for ink jet printing consisting of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the magenta ink contains, as first dye component, at least one dye of formula (I) wherein R2 and Aryl are as defined in the specification, or of formula (II) wherein M, R1 and Aryl are as defined in the specification and, as second dye component, at least one copper complex azo dye of formula (III) or of formula (IV) wherein M, R1, R2, R3, R4, R5, R6 and R7 are as defined in the specification.Type: GrantFiled: March 23, 2005Date of Patent: September 4, 2007Assignee: Ilford Imaging Switzerland GmbHInventors: Jean-Luc Gremaud, Arnd Kriebel
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Publication number: 20070188574Abstract: An ink set for ink-jet recording is provided defined by an evaluation indicator approximately corresponding to an evaluation sensed by human eyes without relying on a color difference (?E) or an optical density difference (?OD) at the time of evaluating a long-term storage stability of the ink set for ink-jet recording. In the ink set for ink-jet recording which contains a yellow ink, a magenta ink and a cyan ink, values of hue angle change (?h), between before and after lightfastness tests, of print regions corresponding to respective inks formed on glossy paper by using the yellow ink, the magenta ink and the cyan ink are not more than about 3° for the yellow ink, not more than about 2° for the magenta ink, and not more than about 6° for the cyan ink.Type: ApplicationFiled: February 9, 2007Publication date: August 16, 2007Applicant: Brother Kogyo Kabushiki KaishaInventors: Ryuji Kato, Tomoyo Hamajima
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Publication number: 20070186811Abstract: An ink for ink-jet recording is provided in which copper phthalocyanine dyes and a thiazole-based compound are used. In this ink, the mildew resistant properties are not impaired, and the ink exhibits excellent ozone resistance. Furthermore, the formation of a precipitate is prevented in the ink although the thiazole-based compound is used. In the ink for ink-jet recording, as copper phthalocyanine dyes, two types of dyes are used together with a thiazole-based compound. Furthermore, about 1 mol % to about 20 mol % of the total counter ions in the two types of copper phthalocyanine dyes are ammonium ions or organic ammonium ions.Type: ApplicationFiled: February 15, 2007Publication date: August 16, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasuhiro TAGA, Tomoyo HAMAJIMA, Masaya FUJIOKA, Kazuma GOTO
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Publication number: 20070186810Abstract: An ink for ink-jet recording is provided in which a copper phthalocyanine dye is used and a thiazole-based compound is also used. In this ink, the mildew resistant properties are not impaired. Furthermore, the ink exhibits excellent ozone resistance, and the formation of a precipitate is prevented in the ink although the thiazole-based compound is used. In the ink for ink-jet recording containing the copper phthalocyanine dye and the thiazole-based compound, the used copper phthalocyanine dye has a specific structure, and about 1 mol % to about 20 mol % of the total counter ions of the dye are ammonium ions or organic ammonium ions.Type: ApplicationFiled: February 15, 2007Publication date: August 16, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasuhiro Taga, Tomoyo Hamajima, Masaya Fujioka, Kazuma Goto
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Publication number: 20070186809Abstract: An ink for ink-jet recording is provided in which C. I. Direct Blue 199 and a thiazole-based compound are used. In this ink, about 1 mol % to about 20 mol % of the total counter ions in C. I. Direct Blue 199 are ammonium ions or organic ammonium ions.Type: ApplicationFiled: February 15, 2007Publication date: August 16, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yasuhiro TAGA, Tomoyo HAMAJIMA, Masaya FUJIOKA, Kazuma GOTO
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Publication number: 20070186808Abstract: A cyan ink for ink-jet recording contains a coloring agent, water and a water soluble organic solvent. Different types of dyes are employed as the coloring agent. In particular, a dye represented by the general formula (1) is used together with at least one dye selected from the group consisting of a dye represented by the general formula (2), a dye represented by the general formula (3) and C. I. Direct Blue 86. In the formulas, Pc(Cu) is a copper phthalocyanine nucleus.Type: ApplicationFiled: February 12, 2007Publication date: August 16, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tomoyo HAMAJIMA, Shunichi HIGASHIYAMA, Kazuma GOTO, Narumi KOGA, Yasuhiro TAGA
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Publication number: 20070188573Abstract: an ink set for ink-jet recording is provided defined by an evaluation indicator approximately corresponding to an evaluation sensed by human eyes without relying on a color difference (?E) or an optical density difference (?OD) at the time of evaluating long-term storage properties of the ink set for ink-jet recording. In the ink set for ink-jet recording which contains a yellow ink, a magenta ink and a cyan ink, values of hue angle change (?h), between before and after ozone resistance tests, of print regions corresponding to respective inks formed on glossy paper by using the yellow ink, the magenta ink and the cyan ink are not more than about 3° for the yellow ink, not more than about 2° for the magenta ink, and not more than about 6° for the cyan ink.Type: ApplicationFiled: February 9, 2007Publication date: August 16, 2007Applicant: Brother Kogyo Kabushiki KaishaInventors: Tomoyo Hamajima, Ryuji Kato
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Publication number: 20070186806Abstract: An ink set for ink-jet recording is formed from a yellow ink in which C. I. Direct Yellow 132 and C. I. Direct Yellow 86 are employed, a magenta ink in which a specific pyrazolylazopyridine-based (or pyrazolylazopyrazine-based) dye and another specific dye are employed, and a cyan ink in which two specific types of copper phthalocyanine-based dyes are employed.Type: ApplicationFiled: February 12, 2007Publication date: August 16, 2007Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Kazuma GOTO, Narumi KOGA, Satoshi Okuda, Tomoyo Hamajima, Yasuhiro TAGA, Shunichi HIGASHIYAMA
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Patent number: 7252707Abstract: An inkjet recording ink set comprising at least two inks, wherein each of the inks contains at least one dye having an anionic group, and even when any two inks in the ink set are mixed, precipitation of the dye does not occur.Type: GrantFiled: March 23, 2004Date of Patent: August 7, 2007Assignee: Fujifilm CorporationInventors: Takashi Ozawa, Toshiki Taguchi
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Patent number: 7250079Abstract: The invention provides a water-soluble ink capable of forming an image having good color hue and high fastness in various use and environmental conditions, which comprises a coloring composition comprising a disazo dye represented by the following formula 1: A1-N?N-A2-N?N-A3 and at least one other dye having a specific structure; in formula 1, A1, A2 and A3 each independently represents an aromatic group which may be substituted or a heterocyclic group which may be substituted, and A1 and A3 each is a monovalent group and A2 is a divalent group.Type: GrantFiled: January 7, 2004Date of Patent: July 31, 2007Assignee: Fujifilm CorporationInventors: Tomohiro Chino, Toshiki Fujiwara, Masaru Takasaki
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Patent number: 7250077Abstract: An aggregation stabilizer is further added to an ink composition for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that is condensation-polymerized in the absence of the water. With this aggregation stabilizer, a hardly-soluble or insoluble component formed by the colorant and the water-soluble substance is modified so as to be readily dissolved in water, whereby generation of an aggregate in the ink is prevented.Type: GrantFiled: May 19, 2003Date of Patent: July 31, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hidekazu Arase, Mamoru Soga
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Patent number: 7247195Abstract: The present invention is drawn to dye sets for formulating ink-jet inks, including ink sets having six ink-jet inks. In one embodiment, the dye set can comprise a yellow dye for formulating a yellow ink, a pair of magenta dyes for formulating a magenta ink and a pale magenta ink, a pair of cyan dyes for formulating a cyan ink and a pale cyan ink, and a black dye for formulating a black ink-jet ink. The pair of magenta dyes can be a transition metal-containing azo dye and a non-metallized dye. The pair of cyan dyes can be a first copper phthalocyanine dye and a second copper phthalocyanine dye that is different than the first copper phthalocyanine dye.Type: GrantFiled: March 9, 2005Date of Patent: July 24, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Tye Dodge, Linda C. Uhlir-Tsang, Hiang P Lauw, Matthew Thornberry
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Patent number: 7247194Abstract: An ink jet ink is disclosed which includes water, a water-soluble organic solvent and a coloring material and has excellent properties. The coloring material is a specific phthalocyanine derivative and is contained in a specific amount in the ink. The water-soluble organic solvent includes a specific amount of 2-pyrrolidone. In addition, a d75 value is in a specific range where the d75 value corresponds to 75% of a dispersion distance distribution, measured by a small angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 0.5 mass %.Type: GrantFiled: December 30, 2005Date of Patent: July 24, 2007Assignee: Canon Kabushiki KaishaInventors: Daiji Okamura, Shin-ichi Sato, Jun Yoshizawa, Kunihiko Nakamura, Tomohiro Yamashita, Masanori Jinnou
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Patent number: 7244300Abstract: An inkjet recording ink of giving an image having high image quality and excellent weather resistance is provided, which is an inkjet recording ink comprising a specific phthalocyanine dye, wherein the total amount of cations in the ink except for a lithium ion, a hydrogen ion, an ammonium ion, an organic quaternary nitrogen ion and an ion produced by the proton addition to a nitrogen atom in a basic organic material is 0.5 wt % or less.Type: GrantFiled: September 24, 2003Date of Patent: July 17, 2007Assignee: Fujifilm CorporationInventor: Toshiki Taguchi
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Patent number: 7244299Abstract: An ink jet recording ink comprising at least a copper phthalocyanine dye represented by the following general formula (1) and a compound represented by the following general formula (2):Type: GrantFiled: September 26, 2005Date of Patent: July 17, 2007Assignee: Canon Kabushiki KaishaInventors: Itaru Tsuji, Shinichi Tochihara, Hiroshi Tomioka, Koichi Osumi, Hiroyuki Takuhara, Minako Kawabe, Hideki Yamakami
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Patent number: 7241332Abstract: To provide an ink jet yellow ink to be used in combination with ink excellent in light resistance and environmental gas resistance with a color fading balance with respect to light and an environmental gas between the inks uniformized. The ink jet yellow ink is an ink jet yellow ink to be used for forming an image together with a cyan ink comprising a compound represented by a general formula (1) or a compound represented by a general formula (2) as a coloring material, the ink jet yellow ink comprising: at least one kind of coloring material selected from the following A group; and at least one kind of coloring material selected from the following B group. A group: C.I. Direct Yellow 132 and C.I. Direct Yellow 173 B group: C.I. Direct Yellow 142, C.I. Direct Yellow 86, and a compound represented by a general formula (3).Type: GrantFiled: January 26, 2006Date of Patent: July 10, 2007Assignee: Canon Kabushiki KaishaInventors: Jun Yoshizawa, Shin-ichi Sato, Kunihiko Nakamura
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Publication number: 20070155960Abstract: The present invention discloses a yellow dye compound having a structure of the following formula (I): wherein M is H, Li, NH4 or Na. The dye compound of the present invention is particularly applied to yellow dye compound for paper-printing ink jet ink and can be made into yellow ink jet ink with greenish yellow, wide color gamut, and excellent solubility.Type: ApplicationFiled: June 15, 2006Publication date: July 5, 2007Applicant: Everlight USA, Inc.Inventors: Wen-Chin Lin, Tzu-Kwei Sun, Jen-Fang Lin
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Patent number: 7229489Abstract: A water-color ink with which a high print quality can be obtained on ordinary paper, recycled paper or coated paper, and which has excellent storage stability. The water-color ink includes at least a color material and 2-butyl-2-ethyl-1,3-propanediol.Type: GrantFiled: July 11, 2005Date of Patent: June 12, 2007Assignee: Seiko Epson CorporationInventor: Masahiro Yatake
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Patent number: RE39700Abstract: Oxo anions (both singly and multiply charged), such as phosphates, polyphosphates, and phosphate esters, serve as additives, and in the case of cationic dyes, may serve as replacement counter-ions, for use in thermal ink-jet inks to reduce kogation significantly. The addition of such additive essentially eliminates kogation for the life of ink pens. Further, such additives will prevent kogation for inks containing dyes with negatively-charged water-solubilizing groups, such as sulfonate and carboxylate.Type: GrantFiled: October 26, 2005Date of Patent: June 26, 2007Assignee: Hewlett-Packard CompanyInventor: David J. Halko