Five-ring Members In The Heterocyclic Ring Patents (Class 106/31.49)
  • Publication number: 20120255460
    Abstract: An oil-based ink contains at least a dye and an organic solvent, wherein the dye is contained by an amount ranging from 0.1 to 20 mass % relative to the total amount of the ink, and the organic solvent contains a five-membered heterocyclic compound having a C?O bond or a phosphoric acid ester by an amount ranging from 50 to 99 mass % relative to the total amount of the ink.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Kazuya KAWAKAMI, Teruaki OKAWA
  • Patent number: 8282720
    Abstract: A cyan ink for inkjet recording comprising at least one of a phthalocyanine compound represented by Formula (1) and a phthalocyanine compound represented by Formula (2), Z being represented by Formula (3):
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: October 9, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Natsuko Kusaka, Naohiro Hirose, Hiroyuki Yasukawa
  • Patent number: 8282722
    Abstract: A sulfonated dye salt of formula (II): wherein M is Ga(A1); A1 is an axial ligand selected from the group consisting of: —OH and halogen; and Z1+, Z2+, Z3+ and Z4+ are independently selected from the group consisting of: H and an ammonium cation including 3 or more hydroxyl groups. At least one of Z1+, Z2+, Z3+ and Z4+ is the ammonium cation. Such salts exhibit reduced kogation in thermal bubble-forming inkjet printheads.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: October 9, 2012
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Simone Charlotte Vonwiller, Sutharsiny Indusegaram, Graciel Gonzaga, Damon Donald Ridley, Kia Silverbrook
  • Patent number: 8282721
    Abstract: An arylidene-pyrazolone dye of the following formula (1): wherein R1, R2, R3, R4 and R5 each independently represent a monovalent substituent; n indicates an integer of from 0 to 4; when n is 2 or more, plural R3's may be the same or different; and R1 and R2 may bond to each other to form a cyclic structure.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: October 9, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Yoshihiko Fujie, Shinichi Ichikawa, Takashi Hoshimiya, Hisashi Mikoshiba, Naotsugu Muro
  • Patent number: 8268523
    Abstract: A black color material includes a squarylium compound represented by the following formula (1); and a blue color material:
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: September 18, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shinji Hasegawa, Minquan Tian, Yuka Ito, Kazunori Anazawa, Kazuhiko Hirokawa, Takashi Matsubara, Kazunaga Horiuchi, Tomoko Miyahara, Makoto Furuki
  • Publication number: 20120218343
    Abstract: A mixture of dyes and salts thereof comprising: (a) dyes of Formula (1) and salts thereof: wherein: R1 is optionally substituted C1-8alkyl; R2 is H or methyl; R3 is H or optionally substituted C1-4alkyl; L is optionally substituted C1-4alkyl; y is 1 to 3; z is 1 to 3; and y+z is 2 to 4: and (b) an acid triphenylmethane dye and salts thereof: wherein the ratio of the components (a) and (b) is in the range of from 95:5 to 5:95 parts by weight.
    Type: Application
    Filed: October 8, 2010
    Publication date: August 30, 2012
    Inventor: Prakash Patel
  • Patent number: 8252102
    Abstract: The present invention provides a water-based black ink for ink-jet recording, containing a coloring agent and water. The coloring agent contains a yellow dye, a magenta dye, and a cyan dye. The yellow dye contains a dye (Y) represented by the following general formula (1). The magenta dye contains a dye (M) represented by the following general formula (2). The cyan dye contains a phthalocyanine dye (C). The dye (Y), the dye (M), and the phthalocyanine dye (C) are blended so as to satisfy the following conditions (a) and (b).
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: August 28, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yasuhiro Taga, Kazuma Goto, Narumi Koga
  • Publication number: 20120207983
    Abstract: An inkjet ink set including at least a black ink, a cyan ink, a magenta ink, and a yellow ink. Each of the inks includes at least a water-soluble dye, water and a water-soluble solvent including a specific alkoxypropionamide compound. The cyan, magenta and yellow inks has a S/W ratio of not less than 1.5 and not greater than 3.5, wherein S represents the content of the water-soluble solvent in each ink, and W represents the content of water in each ink, and the black ink has a S/W ratio of not less than 1.0 and less than 1.5, wherein S represents the content of the water-soluble solvent in the black ink, and W represents the content of water in the black ink.
    Type: Application
    Filed: January 25, 2012
    Publication date: August 16, 2012
    Inventors: Akihiko MATSUYAMA, Hiroshi Gotou
  • Publication number: 20120188317
    Abstract: A process for preparing azaphthalocyanine or metallo-azaphthalocyanine dyes Also novel compounds, inks, printing processes, printed materials (including color filters) and ink-jet cartridges.
    Type: Application
    Filed: October 6, 2010
    Publication date: July 26, 2012
    Inventor: Prakash Patel
  • Patent number: 8226757
    Abstract: Phthalocyanine dyes represented by the general structures (I) to (IV) and inkjet ink formulation including the phthalocyanine dyes.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: July 24, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Jayprakash C. Bhatt
  • Patent number: 8226758
    Abstract: The present invention relates to a disperse dye mixture containing (a) two or more disperse dyestuffs of the formula (I) or (b) one or more disperse dyestuffs of the formula (I) and one or more other disperse dyestuffs. The invention also relates to their process of preparation and their use.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: July 24, 2012
    Assignee: DyStar Colours Deutschland GmbH
    Inventors: Clemens Grund, Andreas Endres, Hartwig Jordan, Adrian Murgatroyd, Stefan Neubauer, Nigel Hall, Anthony Lawrence, Shinsuke Ono, Klaus-Wilfried Wanken
  • Patent number: 8206496
    Abstract: Mixed phthalocyanine and naphthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle. At least one benzene ring is linked to an isoindole unit and at least one naphthalene ring is linked to another isoindole unit. The remaining two isoindole units each have a benzene ring or a naphthalene ring linked thereto, in any combination. A metal atom is optionally complexed to the phthalocyanine macrocycle.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: June 26, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt
  • Patent number: 8206497
    Abstract: Polyphenylated phthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle, with either four anthracenyl groups or four naphthacenyl groups each linked to an isoindole, and a metal atom optionally complexed to the phthalocyanine macrocycle.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: June 26, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt, Hou Ng
  • Patent number: 8202358
    Abstract: Phthalocyanine dyes, naphthalocyanine dyes, and/or bridged phthalocyanine/naphthalocyanine dyes represented by one of the general structures I to XVII, inkjet ink formulation comprising said dyes, and detection systems using said dyes are disclosed and described.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: June 19, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sivapackia Ganapathiappan, Jayprakash C. Bhatt
  • Publication number: 20120137928
    Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and a metal atom complexed thereto and having a valency of at least three, with two valencies complexed to the phthalocynanine ring or the naphthalocyanine ring, each unit joined to another through a fused ring, at least one valency attached to water-soluble axial ligands. The dyes to may be employed in inkjet inks in conjunction with colorants.
    Type: Application
    Filed: July 31, 2009
    Publication date: June 7, 2012
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt
  • Publication number: 20120137927
    Abstract: A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and, optionally, a metal atom complexed thereto and, if present, having a valency of from 1 to 5, with two valencies complexed to the phthalocynanine ring or the naphthalocyanine ring. Each unit has two linker moieties on opposite sides or adjacent sides of the unit, wherein water-soluble groups are present on at least one of the linkers, on the metal atom, and optionally on the phthalocyanine or naphthalocyanine moiety.
    Type: Application
    Filed: July 31, 2009
    Publication date: June 7, 2012
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt
  • Publication number: 20120139994
    Abstract: The present disclosure includes naphthalocyanine dyes or fused naphthalocyanine dyes represented by one of the general structures I to XV; inkjet ink formulations including the naphthalocyanine dyes; and a detection system (300) including the dyes.
    Type: Application
    Filed: August 31, 2009
    Publication date: June 7, 2012
    Inventors: Sivapackia Ganapathiappan, Jayprakash C. Bhatt
  • Patent number: 8168359
    Abstract: Nano-sized phthalocyanine pigment particles include a phthalocyanine chromogen structure as the main component, and a substituted soluble metal-phthalocyanine dye as a minor component that is associated non-covalently with the phthalocyanine chromogen structure, wherein the presence of one or more sterically bulky substituents on the substituted soluble metal-phthalocyanine dye limits an extent of pigment particle growth and aggregation, to afford nano-sized pigment particles.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: May 1, 2012
    Assignee: Xerox Corporation
    Inventors: James D. Mayo, Rina Carlini, Adela Goredema, Peter G. Odell, Jeffrey H. Banning
  • Publication number: 20120075393
    Abstract: An ink set is provided and includes at least a yellow ink composition, a magenta ink composition, and a cyan ink composition, wherein the yellow ink composition contains as a colorant at least one selected from the group consisting of a compound represented by formula (Y-I) and a salt thereof. where R4 represents a monovalent group; R5 represents —OR6 or —NHR7; each of R6 and R7 represents a hydrogen atom or a monovalent group; X3 represents a divalent linking group; n3 represents 0 or 1; Ar3 represents a divalent heterocyclic group; and Ar4 represents an alkyl group, an aryl group, or a monovalent triazine ring group.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Shinya ISHIDA
  • Publication number: 20120040287
    Abstract: A curable sublimation marking material including at least one curable component and at least one sublimation colorant. Also disclosed is a transfer printing method including applying a curable sublimation marking material in a desired pattern onto a transfer substrate to form an image on the transfer substrate at a first temperature which is below the sublimation temperature of the sublimation colorant; wherein the curable sublimation marking material comprises at least one curable component and at least one sublimation colorant; curing the image on the transfer substrate; and optionally, bringing the transfer substrate into contact with a final image-receiving substrate, optionally applying pressure, and heating to a second temperature which is sufficient to cause the sublimation colorant to sublime and form a permanent image on the final image-receiving substrate.
    Type: Application
    Filed: August 16, 2010
    Publication date: February 16, 2012
    Applicant: XEROX CORPORATION
    Inventors: Yulin Wang, Ke Zhou, Tie Hwee Ng, Marko Saban
  • Patent number: 8110030
    Abstract: A method of formulating an aqueous ink having minimal visible coloration. The method includes the steps of: providing an aqueous ink formulation containing a sulfonated water-soluble IR-absorbing naphthalocyanine dye having a central metal atom moiety; and adjusting a pH of the formulation to a pH value in the range of 4 to 6.5 so as to minimize visible coloration of the formulation.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: February 7, 2012
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Sutharsiny Indusegaram, Graciel Gonzaga, Simone Charlotte Vonwiller, Scott Matthew Starling, Lachlan Everett Hall, Damon Donald Ridley, Kia Silverbrook
  • Patent number: 8101012
    Abstract: A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: (a) 20-80 wt. % of a compound of formula (A); wherein: R1 is C1-6 alkyl; and each of R2, R3 and R4 is independently selected from H, C1-6 alkyl, halogen, OH, and C1-6 alkoxy; (b) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: January 24, 2012
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Alexander Grant, Simon Fielder, Damon Donald Ridley, Kia Silverbrook
  • Patent number: 8076394
    Abstract: Compositions and methods for printing on specialty media are disclosed. The methods comprise the steps of providing a fixing fluid, providing a dye- or pigment-based ink-jet ink containing an effective amount of a polyvinyl(alcohol-acetate) species, jetting the fixing fluid onto the specialty media forming a coated substrate, and jetting the ink-jet ink onto the coated substrate. Additionally, a gelled printed image on a substrate is disclosed comprising a fixing fluid containing a fixing agent and an aqueous ink-jet ink containing a polyvinyl(alcohol-acetate) species. In both the method and with respect to the image, the polyvinyl(alcohol-acetate) species used can be a known species, or one of a number of new graft copolymers containing a polyvinyl(alcohol-acetate) polymer as one of the constituents of the copolymer.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: December 13, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Alexey S Kabalnov
  • Patent number: 8057589
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula wherein X1, X2, X3, and X4 each, independently of the others, are —S—, —S(?O)—, or —S(?O)2—, R1, R2, R3, and R4 each, independently of the others, are alkyl, aryl, arylalkyl, or alkylaryl, R1?, R2?, R3?, and R4? each, independently of the others, are substituents, n1, n2, n3, and n4 each, independently of the others, are 0, 1, 2, or 3, and M is an atom or group of atoms capable of bonding to the central cavity of a phthalocyanine molecule, wherein axial ligands optionally can be attached to M. Also disclosed is a radiation curable ink composition comprising (a) an ink vehicle, said ink vehicle comprising at least one radically curable monomer compound, and this colorant compound.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: November 15, 2011
    Assignee: Xerox Corporation
    Inventor: Jeffrey H. Banning
  • Patent number: 8038781
    Abstract: An ink composition includes a colorant represented by the following formula (I); water; a guanidine-based compound; and a colorless water-soluble planar compound having more than ten delocalized ?-electrons within one molecule: wherein Pc represents a (k+l+m+n)-valent phthalocyanine nucleus represented by the following formula (II); wherein the symbols in the formulae (I) and (II) are defined in the specification.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: October 18, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Yoshimitsu Arai
  • Patent number: 8038782
    Abstract: An ink composition includes a colorant represented by the following formula (I); water; a guanidine-based compound; and a colorless water-soluble planar compound having more than ten delocalized ?-electrons within one molecule: wherein the symbols in the formula (I) are defined in the specification.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: October 18, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Yoshimitsu Arai
  • Patent number: 8038780
    Abstract: An ink composition includes a colorant represented by the following formula (I); water; a guanidine-based compound; and a colorless water-soluble planar compound having more than ten delocalized ?-electrons within one molecule: wherein the symbols in the formula (I) are defined in the specification.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: October 18, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Yoshimitsu Arai
  • Patent number: 8029611
    Abstract: A salt of a sulfonated dye comprising an ammonium cation as a counterion. The ammonium cation comprises at least 3 hydroxyl groups. The salt is useful in reducing kogation in thermal inkjet printheads. One example of these salts is the compound of formula (II): wherein M is Ga(OH); and each of Z1+, Z2+, Z3+ and Z4+ is protonated 2,2-bis(hydroxymethyl)-2,2?,2?-nitrilotriethanol.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: October 4, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Simone Charlotte Vonwiller, Sutharsiny Indusegaram, Graciel Gonzaga, Damon Donald Ridley, Kia Silverbrook
  • Publication number: 20110234687
    Abstract: Azaphthalocyanine compounds of Formula (1) and salts thereof: wherein: MAzPc represents a azaphthalocyanine nucleus of formula (A): M is 2H, Cu or Ni; each P is independently CH or N; R1, R2 are independently H or optionally substituted alkyl; R3 is optionally substituted hydrocarbyl; y is greater than 0 and less than 4; z is greater than 0 and less than 4; and the sum of y+z is in the range of from 1 to 4; 15 provided that at least one P is N in any one of the four component rings of the azaphthalocyanine nucleus. Also compositions, inks, printing processes, printed materials and ink-jet cartridges.
    Type: Application
    Filed: November 26, 2009
    Publication date: September 29, 2011
    Applicants: Fujifilm Imaging Colorants, Limited, FUJIFILM Corporation
    Inventors: Prakash Patel, Toshiki Fujiwara
  • Patent number: 8025722
    Abstract: An ink jet ink is provided which contains at least a coloring material and a water-soluble organic solvent, where the water-soluble organic solvent contains a branched alkanediol having hydroxyl groups at both terminals of its main chain and at least one of a compound represented by the following general formula (1) and a compound represented by the following general formula (2): R1-[A]-R2??General formula (1)
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: September 27, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Minako Kawabe, Hiroshi Tomioka
  • Publication number: 20110226156
    Abstract: A method of formulating an aqueous ink having minimal visible coloration. The method includes the steps of: providing an aqueous ink formulation containing a sulfonated water-soluble IR-absorbing naphthalocyanine dye having a central metal atom moiety; and adjusting a pH of the formulation to a pH value in the range of 4 to 6.5 so as to minimize visible coloration of the formulation.
    Type: Application
    Filed: May 30, 2011
    Publication date: September 22, 2011
    Inventors: Sutharsiny Indusegaram, Graciel Gonzaga, Simone Charlotte Vonwiller, Scott Matthew Starling, Lachlan Everett Hall, Damon Donald Ridley, Kia Silverbrook
  • Patent number: 7981208
    Abstract: The present invention relates to phthalocyanine compound of poly cross-linking type which is represented with the below formula 1 and is useful for preventing forgery and alternation due to a rapid velocity being responded to a gamma ray of Neutron, and an ink composition comprising it. wherein, M1 and M2 are any one selected from a group consisted of a metal, a metal oxide or a metal halide respectively and may be same or different, R is a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, a hydroxysulfonyl group, an aminosulfonyl group, or an alky group having a substituent group having from 1 to 20 carbon atoms, and n is an integer of 0˜3.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: July 19, 2011
    Assignees: Nanocms Co., Ltd., Korea Minting and Security Printing Corp.
    Inventors: Shi Surk Kim, Kyung Mi Lee, Ku Won Seo, Sang Geun Lee, Won Gyun Choe, Sun Hong Yoon, Soo Dong Kim
  • Patent number: 7972427
    Abstract: An aqueous formulation comprises a sulfonated water-soluble IR-absorbing naphthalocyanine dye having a central metal atom moiety. A pH of the formulation is in the range of 4 to 6.5, which minimizes visibility of the formulation.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: July 5, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Sutharsiny Indusegaram, Graciel Gonzaga, Simone Charlotte Vonwiller, Scott Matthew Starling, Lachlan Everett Hall, Damon Donald Ridley, Kia Silverbrook
  • Publication number: 20110143106
    Abstract: A mixture of azaphthalocyanine compounds of Formula (1) and salts thereof: wherein: M is 2H, Cu or Ni; each P is independently CH or N; R1 is H or optionally substituted C1-4alkyl; R2 is H or optionally substituted C1-8alkyl; R3 is H or optionally substituted hydrocarbyl; and R4 is optionally substituted hydrocarbyl; or R3 and R4 together with the nitrogen atom to which they are attached represent an optionally substituted heterocyclic ring system; x is greater than 0 and less than 4; y is greater than 0 and less than 4; z is greater than 0 and less than 4; the sum of x+y+z is in the range of from 1 to 4 and provided that at least one P is N and that no more than two P groups in any one of the four component rings of the azaphthalocyanine nucleus are N. Also compositions, inks, printing processes, printed materials and ink-jet cartridges.
    Type: Application
    Filed: August 12, 2009
    Publication date: June 16, 2011
    Inventor: Prakash Patel
  • Patent number: 7959724
    Abstract: A substrate having an inkjet ink disposed thereon. The ink comprises an IR-absorbing naphthalocyanine dye of formula (I): wherein: M is a metal group; R1 and R2 are selected from the group consisting of: H and C1-12 alkoxy; W is selected from the group consisting of: a sulfonic acid group or a salt thereof; and a sulfonamide group; n1 is 0, 1, 2 or 3; n2 is 0, 1, 2 or 3; n3 is 0, 1, 2 or 3; and n4 is 0, 1, 2 or 3; provided that at least one of n1, n2, n3 or n4 is greater than 0. n4 is 0, 1, 2 or 3; provided that at least one of n1, n2, n3 or n4 is greater than 0.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: June 14, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Simone Charlotte Vonwiller, Scott Matthew Starling, Damon Donald Ridley, Lachlan Everett Hall, Simon Fielder, Sutharsiny Indusegaram, Kia Silverbrook, Paul Lapstun
  • Publication number: 20110128331
    Abstract: A water-based ink for ink-jet recording includes a coloring agent, water, and a water-soluble organic solvent. The coloring agent includes the following a dye (1) and a dye (2). dye (1): a dye represented by the general formula (1) dye (2): at least one dye selected from the group consisting of dyes represented by the general formula (2a), dyes represented by the general formula (2b), C. I. Direct Blue 199, and C. I.
    Type: Application
    Filed: September 23, 2010
    Publication date: June 2, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenta HAYASHIDA, Kazuma GOTO
  • Publication number: 20110094413
    Abstract: Phthalocyanine dyes represented by the general structures (I) to (IV) and inkjet ink formulation including the phthalocyanine dyes.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Inventors: Sivapackia Ganapathiappan, Jayprakash C. Bhatt
  • Patent number: 7922799
    Abstract: 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 represents a phthalocyanine nucleus of formula; R1 is optionally substituted alkyl other than methyl: R2 is H, optionally substituted alkyl or optionally substituted aryl; R3 is H, optionally substituted alkyl or optionally substituted aryl; R4 is a group comprising a heterocycle and an ionisable group; L is a direct bond or a divalent linking group; x is 0.1 to 3.8; y is 0.1 to 3.8; and z is 0.1 to 3.8. Also compositions, inks, printed material and in-jet processes and cartridges.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: April 12, 2011
    Assignee: Fujifilm Imaging Colorants Limited
    Inventor: Prakash Patel
  • Publication number: 20110079716
    Abstract: Phthalocyanine dyes, naphthalocyanine dyes, and/or bridged phthalocyanine/naphthalocyanine dyes represented by one of the general structures I to XVII, inkjet ink formulation comprising said dyes, and detection systems using said dyes are disclosed and described.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 7, 2011
    Inventors: Sivapackia Ganapathiappan, Jayprakash C. Bhatt
  • Publication number: 20110073005
    Abstract: Polyphenylated phthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle, with either four anthracenyl groups or four naphthacenyl groups each linked to an isoindole, and a metal atom optionally complexed to the phthalocyanine macrocycle.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt, Hou Ng
  • Publication number: 20110067597
    Abstract: Mixed phthalocyanine and naphthalocyanine water-soluble dyes with near-infrared absorption comprise four isoindole units linked together in a large ring to form a phthalocyanine macrocycle. At least one benzene ring is linked to an isoindole unit and at least one naphthalene ring is linked to another isoindole unit. The remaining two isoindole units each have a benzene ring or a naphthalene ring linked thereto, in any combination. A metal atom is optionally complexed to the phthalocyanine macrocycle.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 24, 2011
    Inventors: Sivapackia Ganapathiappan, Jayprakash Bhatt
  • Publication number: 20110064884
    Abstract: Printing inks for offset and/or letterpress printing which comprise NIR absorbers, and solubility of the NIR absorber in the printing ink is at least 0.1% by weight. NIR absorbers consisting of cyanine cation with an anion which has long-chain alkyl or aralkyl groups. Use of such printing inks for printing processes in which the curing of the printing ink is promoted by using IR lasers. NIR absorbers comprising a cyanine cation with an anion which has long-chain alkyl or aralkyl groups.
    Type: Application
    Filed: November 19, 2010
    Publication date: March 17, 2011
    Applicants: BASF SE, Flint Group Germany GmbH
    Inventors: Gerhard Wagenblast, Helmut Reichelt, Michael Büschel, Sylke Haremza, Peter Erk, Erich Frank
  • Patent number: 7901497
    Abstract: The present invention relates to an aqueous solution composition (water-based ink composition) containing a water-soluble naphthalocyanine coloring matter represented by the following formula (1): wherein, M represents a hydrogen atom, a metal atom, a metal oxide, a metal hydroxide or a metal halide, X represents a carbonyl group or a sulfonyl group, W1 to W4 are each independently a hydrogen atom, an ionic hydrophilic group or the like, at least one of W1 to W4 is a group other than a hydrogen atom, and n represents an integer number of 1 to 24, respectively, or a salt thereof, and a novel naphthalocyanine coloring matter, and said compound is useful as a near-infrared ray absorbent because it has a high absorption in the near-infrared region, and it is useful as a near-infrared ray absorbing water-based ink because it has an excellent storage stability in aqueous solution.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: March 8, 2011
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Takaaki Kurata, Takashi Yoneda, Takafumi Fujii, Tadayuki Kiyoyanagi, Koji Hirota
  • Patent number: 7892339
    Abstract: An IR-absorbing naphthalocyanine dye of formula (I): wherein M is Ga(A1); A1 is selected from the group consisting of: OH and halogen; and W is a sulfonic acid group or salts thereof.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: February 22, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Simone Charlotte Vonwiller, Scott Matthew Starling, Damon Donald Ridley, Lachlan Everett Hall, Simon Fielder, Sutharsiny Indusegaram, Kia Silverbrook, Paul Lapstun
  • Publication number: 20110023751
    Abstract: An aqueous formulation comprises a sulfonated water-soluble IR-absorbing naphthalocyanine dye having a central metal atom moiety. A pH of the formulation is in the range of 4 to 6.5, which minimizes visibility of the formulation.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 3, 2011
    Inventors: Sutharsiny Indusegaram, Graciel Gonzaga, Simone Charlotte Vonwiller, Scott Matthew Starling, Lachlan Everett Hall, Damon Donald Ridley, Kia Silverbrook
  • Publication number: 20110012968
    Abstract: The present invention relates to cyan dye-based inkjet inks having improved permanence when jetted onto porous photo media. The inkjet ink includes a copper phthalocyanine dye having sulfonylamine groups, at least three co-solvents comprising about 18% to about 24% of the composition of the ink by weight, a penetrant, at least one wetting agent, and water.
    Type: Application
    Filed: July 15, 2009
    Publication date: January 20, 2011
    Inventors: Ann P. Holloway, Meagan Winkler Sisk, Agnes Kam Zimmer
  • Patent number: 7871465
    Abstract: Problem: To improve clogging and ink droplet deflection. Solving Means: An ink composition comprising at least water, a colorant and an aromatic compound having a carboxyl group, which contains at least one member selected from the group consisting of a sodium ion, a potassium ion and an ammonium ion and also contains a lithium ion. Alternatively, an ink composition comprising at least water, a specific cyan dye and an aromatic compound having a carboxyl group, which contains a lithium ion and also contains a sodium ion and/or a potassium ion.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: January 18, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Hanmura, Kazuhiko Kitamura, Yasuhiro Oki
  • Patent number: 7842801
    Abstract: Phthalocyanine dyes of general formula (II) and, in particular, of general formula (III) wherein R1-R8, R9-R12, Me, M, m, n, o and p are as described in the specification, are excellent photosensitizers for the preparation of pharmaceutical compositions for photodynamic therapy or photo diagnostics.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 30, 2010
    Assignee: ILFORD Imaging Switzerland GmbH
    Inventors: Kurt Baettig, Damien Moigno
  • Patent number: 7837775
    Abstract: The present invention provides an inkjet ink comprising an IR-absorbing naphthalocyanine dye of formula (I): wherein M is selected from Si(A1)(A2), Ge(A1)(A2), Ga(A1), Mg, Al(A1), TiO, Ti(A1)(A2), ZrO, Zr(A1)(A2), VO, V(A1)(A2), Mn, Mn(A1), Fe, Fe(A1), Co, Ni, Cu, Zn, Sn, Sn(A1)(A2), Pb, Pb(A1)(A2), Pd and Pt; A1 and A2 are axial ligands, which may be the same or different, and are selected from —OH, halogen or —OR3; R1 and R2 are selected from H or C1-12 alkoxy; R3 is selected from C1-12 alkyl, C5-12 aryl, C5-12 arylalkyl or Si(Rx)(Ry)(Rz); and Rx, Ry and Rz may be the same or different and are selected from C1-12 alkyl, C5-12 aryl, C5-12 arylalkyl, C1-12 alkoxy, C5-12 aryloxy or C5-12 arylalkoxy; W is selected from a sulfonic acid group (including salts thereof) or a sulfonamide group; n1 is 0, 1, 2 or 3; n2 is 0, 1, 2 or 3; n3 is 0, 1, 2 or 3; n4 is 0, 1, 2 or 3; provided that at least one of n1, n2, n3 or n4 is greater than 0.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: November 23, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Simone Charlotte Vonwiller, Scott Matthew Starling, Damon Donald Ridley, Lachlan Everett Hall, Simon Fielder, Sutharsiny Indusegaram, Kia Silverbrook, Paul Lapstun
  • Publication number: 20100288161
    Abstract: Dye-based gray ink formulations, ink-jet ink sets, and methods of making a dye-based gray ink formulation, are disclosed.
    Type: Application
    Filed: November 20, 2007
    Publication date: November 18, 2010
    Inventor: Cory J. Ruud