Organic Oxygen Compound Containing Patents (Class 106/31.86)
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Publication number: 20040050292Abstract: A photocurable ink for ink-jet recording, comprising an oxetane compound having a substituent at the 2-position of the molecule.Type: ApplicationFiled: August 21, 2003Publication date: March 18, 2004Applicant: KONICA CORPORATIONInventors: Atsushi Nakajima, Nobumasa Sasa, Yoko Hirai, Ai Kondo
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Patent number: 6706103Abstract: The invention provides a water-based metallic ink composition comprising a metallic powder pigment and a solvent characterized by its further comprising a polyvinyl alcohol. This composition provides a record consisting of a central line derived from a formulated colorant or the color of the writing substrate and contour lines derived from the metallic powder pigment and bordering on both sides of the central line.Type: GrantFiled: December 4, 2000Date of Patent: March 16, 2004Assignee: Sakura Color Products Corp.Inventors: Yasuyuki Yoshimura, Naoshi Murata
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Patent number: 6706105Abstract: The present invention relates to aqueous ink that exhibits characteristics based on cationic self-dispersing carbon black, and that has superior ejection stability even after suspension of printing. The aqueous ink includes cationic self-dispersing pigment, in which at least one cationic group is bound to the surface of the pigment directly or with another atomic group therebetween, a water-soluble organic solvent, and water. In addition to this, the aqueous ink contains an acidic compound including a proton in the structure thereof that can be dissociated due to dissolution into water, and having a dissociation stage of the proton with a dissociation constant of less than 1.Type: GrantFiled: September 25, 2001Date of Patent: March 16, 2004Assignee: Canon Kabushiki KaishaInventors: Yuko Takada, Mikio Sanada, Tomonari Watanabe
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Patent number: 6706098Abstract: A fragrant ink-jet ink including: a fragrant agent, a surfactant, wherein a boiling point of the surfactant is above 78° C. and a Hydrophilic Lipophilic Balance (HLB) of the surfactant is in a range of about 5 to 16, a colorant, and a solvent. The fragrant agent can be a natural fragrant agent, a synthetic fragrant agent or a mixture thereof. The amount of the fragrant agent is about 0.01 wt % to 10.0 wt %.Type: GrantFiled: May 30, 2002Date of Patent: March 16, 2004Assignee: Benq CorporationInventors: Yi-Jing Leu, In-Shan Sir, Yu-Chang Shen, Chia-Hsin Chien
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Patent number: 6702889Abstract: A pigment dispersing liquid and an ink composition for ink jet that is made from a pigment dispersing liquid is described. The pigment dispersing liquid comprises at least a pigment, a dispersing agent and water, wherein the dispersing agent includes at least one compound selected from the compounds with formula (1a) or (1b): The ink for ink jet is formulated with the pigment dispersing liquid and at least one additive selected from the group consisting of water, a water-soluble organic solvent, a surfactant and a preservative.Type: GrantFiled: February 26, 2002Date of Patent: March 9, 2004Assignee: Ricoh Company, Ltd.Inventors: Hatada Shigeo, Taniguchi Keishi
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Patent number: 6702883Abstract: The present invention is directed to a yellow ink which can realize images possessing excellent color reproduction and waterfastness. Images possessing very excellent color reproduction and lightfastness can be realized by using a yellow ink composition comprising C.I. Pigment Yellow 128 and C.I. Pigment Yellow 110 as a colorant, or by using a yellow ink set comprising a first yellow ink composition containing C.I. Pigment Yellow 128 and a second yellow ink composition containing C.I. Pigment Yellow 110.Type: GrantFiled: June 27, 2001Date of Patent: March 9, 2004Assignee: Seiko Epson CorporationInventors: Tsuyoshi Sano, Kiyohiko Takemoto
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Patent number: 6702881Abstract: The present invention provides ink for an ink-jet printer containing a fluorescent compound which emits fluorescence by ultraviolet irradiation, a surfactant, and water. The ink can satisfy all points of quick-drying property of the ink after printing, print quality, and change in the hue, lightness, and chroma of the print part by irradiation of light source. A fluorescent compound which has absorption in the visible light range and which emits fluorescence by ultraviolet irradiation and a fluorescent compound which has no absorption in the visible light range and which emits fluorescence, by ultraviolet irradiation, with a hue different from that of the fluorescence emitted from the aforementioned fluorescent compound under visible light are mixed.Type: GrantFiled: February 6, 2002Date of Patent: March 9, 2004Assignee: Seiko Epson CorporationInventors: Yoshifumi Hano, Chiyoshige Nakazawa
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Publication number: 20040035319Abstract: This invention pertains to aqueous inkjet inks containing self-dispersing pigments and effective amounts of one or more multivalent cations, said inks having increased optical density when printed.Type: ApplicationFiled: May 29, 2003Publication date: February 26, 2004Inventors: An-Gong Yeh, Jose E. Valentini
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Publication number: 20040031418Abstract: In an ink composition used for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates, a condensation-polymerization accelerating agent for accelerating the condensation-polymerization of the water-soluble substance is further contained,Type: ApplicationFiled: June 4, 2003Publication date: February 19, 2004Inventors: Mamoru Soga, Hidekazu Arase, Masaichiro Tatekawa, Keishi Taniguchi, Tsutomu Matsuda, Masashi Ito, Takamichi Enomoto
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Publication number: 20040024037Abstract: An antibiotic additive and an ink composition including the antibiotic additive include a compound produced by binding of an antibiotic substance having the following formula (I) to a predetermined additive via a chemical reaction. The ink composition includes a colorant, a solvent and an antibiotic additive produced by binding of an antibiotic substance having the following formula (I) to a predetermined additive via a chemical reaction. The antibiotic additive prevents surface dry, improves storage stability and inhibits propagation and growth of bacteria in an ink and has excellent compatibility with a general dye or pigment.Type: ApplicationFiled: July 2, 2003Publication date: February 5, 2004Applicant: SAMSUNG Electronics Co., Ltd.Inventors: Seung-Min Ryu, Jae-Hwan Kim, Jong In Lee, Dae Hee Lee
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Publication number: 20040016367Abstract: The invention provides an aqueous ink composition which contains at least (a) a glycol ether type water-soluble organic solvent, (b) an acetylene glycol type surfactant and (c) a pigment, wherein the pigment has a ratio (B/A) of its dissolution amount (B) in the ink liquid medium at 40° C. to its dissolution amount (A) in the ink liquid medium at 25° C. (A) of from 1 to 10.Type: ApplicationFiled: March 10, 2003Publication date: January 29, 2004Applicant: SEIKO EPSON CORPORATIONInventors: Yoshiyuki Koike, Hiroshi Ito
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Publication number: 20040016365Abstract: A pigment-based black ink. The ink includes a carbon black pigment dispersions, macromolecular chromophores (MMCs), and an aqueous solution medium.Type: ApplicationFiled: July 17, 2003Publication date: January 29, 2004Applicant: BENQ CORPORATIONInventors: In-Shan Sir, Yu-Chang Shen, Yu-Ting Lin
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Patent number: 6682587Abstract: A meltable ink composition used in a printing apparatus in which ink drops are ejected from ink ducts wherein the ink composition contains a compound with the following formula in which R1 and R′1 are the same or different and are selected from a C1-8 alkyl group or a C1-8 alkoxy group, R2 is a C1-12 linear alkane diyl group or a C5-12 alkane diyl group containing an alicyclic group, and n is 1, 2 or 3.Type: GrantFiled: January 8, 2002Date of Patent: January 27, 2004Assignee: Oce-Technologies B.V.Inventors: Danny Hendrik maria Hendricks, Marcus Petrus Leonardus Huinck, Frederik Leonardus Everardus Suilen
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Patent number: 6683121Abstract: A pigment dispersant including 80-97% by weight, based on the weight of thepigment dispersant, of a first polymer comprising as copolymerized units 15-75% by weight, based on the first polymer weight, ethylenically unsaturated carboxylic acid-functional monomer, the polymer having a Mw from 4,000 to 16,000, and the polymer having a Tg greater than 70° C.; and 3-20% by weight, based on the weight of the pigment dispersant, of a poly(ethylene oxide/propylene oxide) block second polymer having an Mw from 3,000 to 20,000 and an HLB value of 16 to 32 is provided. And the invention relates to a method for dispersing a pigment in an aqueous medium using the pigment dispersant, an aqueous pigment dispersion including the pigment dispersant, and an aqueous ink including the pigment dispersion.Type: GrantFiled: November 20, 2001Date of Patent: January 27, 2004Assignee: Rohm and Haas CompanyInventors: Shang-Jaw Chiou, Scott Lind Egolf, Miao-Hsun Sheng
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Patent number: 6682591Abstract: Disclosed is an ink composition comprising water, a colorant, and a borate ester, said ink containing water in an amount of at least about 5 percent by weight and containing water in an amount of no more than about 50 percent by weight, wherein either (a) the ink also contains an amine compound, or (b) the borate ester is hydrolytically stable.Type: GrantFiled: November 9, 2001Date of Patent: January 27, 2004Assignee: Xerox CorporationInventors: Thomas W. Smith, Jin Wu
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Patent number: 6682592Abstract: An ink for ink jet recording comprising water, a coloring agent and at least one compound represented by the following formula (1): wherein R1 and R2 each independently represents a saturated hydrocarbon having from 2 to 20 carbon atoms, and m represents an integer of from 2 to 40 or by the following formula (2): wherein R1 and R2 each independently represents a saturated hydrocarbon having from 2 to 20 carbon atoms, and m represents an integer of from 4 to 40.Type: GrantFiled: January 17, 2002Date of Patent: January 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiichi Adachi, Junichi Yamanouchi
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Publication number: 20040007155Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a colorant compound of the formula 1Type: ApplicationFiled: June 27, 2002Publication date: January 15, 2004Applicant: Xerox CorporationInventors: Jeffrey H. Banning, Bo Wu, James D. Mayo, James M. Duff, Rina Carlini, Jule W. Thomas,, Paul F. Smith
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Patent number: 6676735Abstract: An aqueous ink comprising at least a colorant, a water-soluble organic solvent and a compound represented by general formula (I) shown below, wherein said water-soluble organic solvent stays liquid at a temperature of not higher than 40° C., exhibits a water solubility of not lower than 1% by weight at a temperature of 20° C. and a saturated vapor pressure of not higher than 1.7 Pa at a temperature of 20° C. and is contained in an amount of from 5 to 35% by weight: wherein Y represents a nonmetallic atom group required to form a 5- to 7-membered ring with C and N; X represents a hydrogen atom, oxyradical group, hydroxyl group, alkyl group, alkenyl group, alkinyl group, aryl group, acyl group, sulfonyl group, sulfinyl group, alkoxy group, aryloxy group or acyloxy group; and R1 to R4 may be the same or different and each represent a hydrogen atom or alkyl group, with the proviso that any two of R1 to R4 and Y may be connected to each other to form a 5- to 7-membered ring.Type: GrantFiled: June 21, 2001Date of Patent: January 13, 2004Assignee: Seiko Epson CorporationInventors: Yasuhiro Oki, Kazuhiko Kitamura, Tetsuya Aoyama, Nobuo Uotani, Hiroshi Takahashi, Yuji Ito
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Patent number: 6676738Abstract: Disclosed is a black ink composition containing a carbon black and a pigment represented by the following general formula (1): wherein p represents an integer of from 0 to 3. Also disclosed is an ink set containing at least one kind of such a black ink composition as at least one of a black ink composition and a light black ink composition.Type: GrantFiled: December 28, 2001Date of Patent: January 13, 2004Assignee: Seiko Epson CorporationInventors: Tsuyoshi Sano, Kiyohiko Takemoto
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Patent number: 6676736Abstract: A water-based ink composition comprising (A) an aqueous medium; (B) at least one colorant selected from the group consisting of (i) polymer particles comprising a dye or pigment and a water-insoluble polymer, and (ii) a self-dispersible pigment; and (C) a specific compound A. The water-based ink composition is used for inkjet printing.Type: GrantFiled: May 23, 2001Date of Patent: January 13, 2004Assignee: Kao CorporationInventors: Yukihiro Nakano, Shigeki Nagashima
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Patent number: 6676734Abstract: Disclosed herein is an ink comprising (i) first and second organic compounds which are incompatible with each other; (ii) at least one of a compound exhibiting fluorescence properties and a coloring material exhibiting fluorescence properties; and (iii) a liquid medium dissolving or dispersing the components (i) and (ii) therein.Type: GrantFiled: August 8, 2001Date of Patent: January 13, 2004Assignee: Canon Kabushiki KaishaInventors: Akira Nagashima, Shinichi Hakamada
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Publication number: 20040003756Abstract: An aqueous ink-jet ink composition for MICR applications is provided comprising a metal oxide pre-dispersion combined with an aqueous ink-jet ink composition, wherein the metal oxide pre-dispersion contains metal oxide pigment or particles of a very small particle size, about 0.5&mgr; or less, and exhibiting high remanence of at least 20 emu/g. The metal oxide particles may be coated with a hydrophilic coating, and the pre-dispersion may contain at least one surfactant to aid in the dispersion of the metal oxide particles.Type: ApplicationFiled: July 1, 2002Publication date: January 8, 2004Applicant: Nu-kote International, Inc.Inventors: Michael J. McElligott, Donald E. Snyder
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Patent number: 6663704Abstract: Pearlescent inks are provided. The inks are suitable for use in writing instruments, and include a dispersion of a pearlescent pigment in a solvent. Some inks are erasable and/or shear-thinning.Type: GrantFiled: July 3, 2001Date of Patent: December 16, 2003Assignee: Berol CorporationInventors: Jean L. Spencer, Pawel Czubarow, Yoojeong Kim
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Publication number: 20030226473Abstract: It is an object of the present invention to provide an ink set for which color differences of a recorded image due to differences in light source can be made to be slight, and the color reproduction range in dark parts of an image can be broadened, while maintaining high image quality with no worsening of the graininess in the dark parts. With the present invention, the above object is attained by providing an ink set that comprises at least a black ink composition containing a black pigment, and a light black ink composition containing the black pigment at a concentration less than the pigment concentration in the black ink composition, wherein the ratio of the pigment concentration in the black ink composition to the pigment concentration in the light black ink composition is in a range of 2 to 4.5.Type: ApplicationFiled: February 18, 2003Publication date: December 11, 2003Applicant: SEIKO EPSON CORPORATIONInventor: Bunji Ishimoto
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Patent number: 6660072Abstract: Improved inkjet ink compositions have a sufficient amount of an acetylenic alcohol incorporated therein to reduce the corrosiveness of the ink without adversely affecting the printing characteristics of the ink composition. The inkjet ink compositions of the invention include a carrier, a colorant that is soluble or dispersable in said carrier, and a sufficient quantity of at least one acetylenic alcohol to reduce the corrosiveness of said ink composition to metal placed in contact with said ink composition. The inkjet ink compositions may also include at least one acetylenic alcohol that contains a terminal acetylene and an &agr;-hydroxy group. A method for reducing corrosiveness of an inkjet ink composition includes adding to said inkjet ink composition a sufficient quantity of at least one acetylenic alcohol to reduce the corrosiveness of said ink composition to metal placed in contact with said ink composition.Type: GrantFiled: December 21, 2001Date of Patent: December 9, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventor: Amiya K Chatterjee
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Publication number: 20030221586Abstract: 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: ApplicationFiled: May 19, 2003Publication date: December 4, 2003Inventors: Hidekazu Arase, Mamoru Soga
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Patent number: 6652638Abstract: A marking composition for placing a temporarily visible mark on a surface. The composition includes a paint base and a pigmented colorant. The pigmented colorant is dispersed within the paint base, and has characteristics that cause the mark to progressively become substantially invisible upon exposure to UV light. Additives, such as UV absorbers and anti-oxidants may be included to alter the rate at which the mark becomes invisible. The pigmented colorant may be a dispersion of dyed melamine-toluenesulfonamide-formaldehyde polymer in a mixture of alkyl based resins and aliphatic hydrocarbons. The colorant may be about 2 to 30 parts by weight of the composition.Type: GrantFiled: June 1, 2001Date of Patent: November 25, 2003Assignee: Aervoe Pacific Company, Inc.Inventors: Neil S. Fox, Christopher P. Finke
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Patent number: 6652639Abstract: An additive for a pigment based ink—jet printing composition which is used in conjunction with a printing head that comprises metallic components, is disclosed. The additive comprises a cationic component and an anionic component, and characterized in that the cationic component is a cationic surfactant. Preferred additives are those where the cationic component is C10-22alkyl trimethyl ammonium. Pigment-based ink—jet printing compositions comprising these additive are also described.Type: GrantFiled: March 13, 2000Date of Patent: November 25, 2003Assignee: Idanit Technologies Ltd.Inventors: Moshe Frenkel, Eitan Cohen
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Publication number: 20030213403Abstract: An ultraviolet absorber having an acidic group 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. A radical trapping agent having an acidic group 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.Type: ApplicationFiled: May 15, 2003Publication date: November 20, 2003Inventors: Mamoru Soga, Hidekazu Arase
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Publication number: 20030213406Abstract: An ink for use in the ink-jet recording comprising a dye and/or a pigment and water as the indispensable components and a water-insoluble solid content of 1% or more of the whole quantity, the ink further comprising: a nonionic surfactant having polyethylene oxide groups and polypropylene oxide groups, which is a substance having the structure shown by the following structural formula 1; and a number x of the added polyethylene oxide groups and a number y of the added polypropylene oxide groups satisfy the relation thatType: ApplicationFiled: April 28, 2003Publication date: November 20, 2003Inventors: Hiromi Nakatsu, Masanori Kinomoto, Seita Suzuki, Takanori Kamoto, Kiyofumi Morimoto, Hiroaki Nakaya
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Patent number: 6645280Abstract: The present invention provides a jet ink composition suitable for printing watermarks on paper substrates. The jet ink composition comprises a solvent and a translucentizing agent. An example of a translucentizing agent is sucrose acetate isobutyrate. The present invention further provides a method of ink jet printing watermark on an object comprising projecting a stream of droplets of the ink composition and controlling the direction of the stream so that the droplets form the watermark on the object. The method of the present invention has the advantage that it provides high speed watermarking capability. The method provides a further advantage that it is economical in changing the design of watermarks. The method is versatile and allows changes in the design of watermarks to be incorporated readily.Type: GrantFiled: May 26, 2000Date of Patent: November 11, 2003Assignee: Videojet Technologies Inc.Inventors: Linfang Zhu, Christopher D. Peterson
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Patent number: 6645284Abstract: Provided is an ink composition for a water based ballpoint pen which satisfies all of no change in the ink composition even in storage over a long period of time, a good strike-through property and an excellent drawn line-drying property at the same time. An ink composition for a water based ballpoint pen comprising at least water and a colorant, characterized by further comprising at least one drawn line-drying property-improving agent selected from butyl cellosolve and butyl carbitol in a proportion of 0.1 to 2.5% by weight based on the whole amount of the composition and having a surface tension of 16 to 45 mN/m, and a water based ballpoint pen containing therein the same.Type: GrantFiled: March 22, 2001Date of Patent: November 11, 2003Assignee: Mitsubishi Pencil Kabushiki KaishaInventor: Hideyuki Ikoma
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Patent number: 6641652Abstract: An ink composition for use in an on-demand inkjet printer capable of printing on plain paper at a recording rate of 10 ips or higher, which ink composition comprises at least a pigment and non-pigment components including at least water and a thickening agent and shows a weight loss ratio at 25° C. and 60 RH % for 30 minutes of 5 to 25% based on the total weight of the ink. Also disclosed is an on-demand inkjet recording process using the ink composition.Type: GrantFiled: March 23, 2001Date of Patent: November 4, 2003Assignee: Hitachi Printing Solutions, Ltd.Inventors: Akemi Ouchi, Tsutomu Maekawa, Atsushi Kakuta
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Patent number: 6641653Abstract: The present invention describes an ink composition comprising a liquid vehicle and a modified colored pigment. The modified colored pigment comprises the product of a colored pigment having at least one leaving group and a treating agent. The modified colored pigments are also disclosed, as are processes for producing them.Type: GrantFiled: July 19, 2001Date of Patent: November 4, 2003Assignee: Cabot CorporationInventor: Yuan Yu
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Patent number: 6641650Abstract: A smooth stable viscous gelled printing ink composition comprising a mixture of water, a gelling agent, a chelating agent, and a colorant or pigment, property enhancing additives evenly dispersed into the mixture, and an alkaline electrolyte viscosity increasing agent that raises the pH of the mixture and forms a smooth homogeneous stable gel with a viscosity level having the consistency of a custard or jelly. In addition to the colorants or pigments, additives may also include drying oils, resins, surfactants, film forming components, water flight agents, and other additives. The stabilized gel prevents separation and settling of the homogeneously suspended colorants, pigments, and property enhancing additives, and significantly improves storage stability. The ink compositions do not require shaking, stirring, or mixing prior to use are fast drying on paper, and do not dry on the printing press, in the storage containers, or in the ink jet or bubble jet injector nozzles.Type: GrantFiled: February 26, 2001Date of Patent: November 4, 2003Inventors: Conard E. Kaiser, Jock R. Collins, James R. Collins
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Patent number: 6641651Abstract: The invention provides an ink-jet ink comprising (A) diethylene glycol, (B) at least one of trimethylolpropane and ethyleneurea, (C) a glycol having a vapor pressure lower than that of diethylene glycol at 20° C., (D) a coloring material, and (E) water, wherein the total amount of the components (A), (B) and (C) is 10 to 40% by weight based on the total weight of the ink. The ink is hard to undergo a change in ink composition even when the ink is used in ejection with no recording or ejection-recovery operation, and also hard to undergo a change in ink properties even when the ink composition is changed.Type: GrantFiled: June 13, 2001Date of Patent: November 4, 2003Assignee: Canon Kabushiki KaishaInventors: Mariko Suzuki, Shoji Koike
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Publication number: 20030200897Abstract: The present invention provides ink for inkjet recording containing ethylene glycol base ether and/or monovalent alkyl alcohol, a surfactant and a coloring agent, the ink showing the following characteristics when 2 &mgr;l of the ink is dropped on a piece of ordinary paper having smoothness of 100 sec or lower:Type: ApplicationFiled: April 28, 2003Publication date: October 30, 2003Inventors: Hiromi Nakatsu, Masanori Kinomoto, Kiyofumi Morimoto, Takanori Kamoto, Ichiro Fujii, Hiroaki Nakaya
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Patent number: 6638350Abstract: The invention provides an ink composition having improved printing performance. The ink composition includes an ink vehicle, from about 0.1 to about 10% by weight self-dispersed ink pigment, from about 0.1 to about 10% by weight dye, a humectant, and a penetrant, wherein the weight ratio of ink pigment to dye ranges from greater than about 0.75:1 to less than about 2.5:1. Such ink compositions exhibit substantially improved permanence, decreased drying time, and high optical density compared to ink compositions containing only ink pigment or dye.Type: GrantFiled: April 11, 2002Date of Patent: October 28, 2003Assignee: Lexmark International, Inc.Inventors: Susan Hardin Butler, Jing X. Sun
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Publication number: 20030196570Abstract: This present invention is an ink set for an inkjet printer. The ink set comprises a first ink and at least one second ink. The first ink comprises at least one first colorant, a first merchant, and at least one first non-ionic surfactant. The first merchant comprises aqueous. The at least one first non-ionic surfactant has a first HLB (Hydrophilic Lipophilic Balance) value. The at least one second ink comprises at least one second colorant, a second merchant, and at least one second non-ionic surfactant. The at least one second colorant provides corresponding color of the second ink. The second merchant comprises aqueous. The at least one second non-ionic surfactant has a second HLB value. The first HLB value is smaller than or equal to the second HLB value.Type: ApplicationFiled: April 18, 2003Publication date: October 23, 2003Inventors: Yu-Chang Shen, In-Shan Sir, Chia-Hsin Chien, Yun-I Liu, Yu-Ting Lin
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Publication number: 20030196568Abstract: Provided is a water based ink composition for a writing instrument comprising at least one of nonionic surfactants comprising polyhydric alcohol fatty acid esters, ethylene oxide adducts of polyhydric alcohol fatty acid esters, ethylene oxide adducts of higher alcohols and alkylphenols, ethylene oxide and propylene oxide adducts of higher alcohols, ethylene oxide adducts of castor oil or hardened castor oil, ethylene oxide adducts of hardened castor oil fatty acid esters and ethylene oxide adducts of higher alkylamines and fatty acid amides and further comprising a colorant, a perfume and water. It is less liable to cause feathering of the lines and has durability of fragrance, in which a perfume is dispersed and retained in an aqueous medium in a stable state.Type: ApplicationFiled: December 2, 2002Publication date: October 23, 2003Inventors: Masaru Miyamoto, Tadashi Kamagata, Yoji Takeuchi, Shigeru Miyazaki
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Publication number: 20030196569Abstract: For the purpose of providing an ink for inkjet recording that allows substantially bleed-free printing to be performed on plain paper, and particularly recycled paper, and providing an inkjet ink capable of ensuring high print quality and maintaining high ejection stability on plain paper, recycled paper, and coated paper, the present invention provides an inkjet ink comprising, together with a coloring material and water, a nonionic substance that has acetylene bonds in the molecules thereof and that also has hydroxyl groups and/or alkylene oxide repeating structures (preferably a substance whose structure is shown by formula (IA) according to claim 2, a substance whose structure is shown by formula (I) according to claim 20, or the like), and a nonionic substance that has lipophilic units comprising alkyl groups or cycloalkyl groups and that also has alkylene oxide repeating structures (preferably a substance whose structure is shown by formula (IIA) according to claim 2, a substance whose structure is showType: ApplicationFiled: January 17, 2003Publication date: October 23, 2003Applicant: SEIKO EPSON CORPORATIONInventors: Masahiro Yatake, Masayuki Momose
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Publication number: 20030192453Abstract: A non-aqueous ink composition includes solvent, dispersant and coloring material. The solvent contains therein not smaller than 10% by weight non-polar organic solvent which is not higher than 280° C. in 50% running point and not smaller than 20% by weight polar organic solvent which is not lower than 300° C. in 50% running point.Type: ApplicationFiled: April 16, 2003Publication date: October 16, 2003Applicant: Riso Kagaku CorporationInventors: Teruaki Ohkawa, Hiroyuki Ogawa, Osamu Matsumoto, Toshihiro Endo, Yasuo Yamamoto
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Patent number: 6630017Abstract: An ink jet inkset is provided for image printers, in particular large format printers, for printing on both porous, non-porous, and hybrid glossy media. The inket contains a black ink and one or more color inks, said color ink composition comprises at least one water-soluble dye and a vehicle comprising at least one co-solvent and at least two different surfactants, a non-ionic surfactant and a fluoro-surfactant. The total surfactant concentration ranges from about 0.05 to 6 wt % of the ink composition. The non-ionic surfactant is present in a range of about 0.05 to 3 wt % of the ink composition, while the fluoro-surfactant is present in a range of about 0.001 to 3 wt % of the ink composition. The ink formulation that works well with porous, non-porous, and hybrid glossy media and provides substantially instant ink drying and light fastness of the ink. Further, the ink formulation evidences excellent image quality. The ink can also pass harsh pen material compatibility tests.Type: GrantFiled: March 21, 2001Date of Patent: October 7, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zeying Ma, Kai Kong Iu, Rodney D. Stramel, Shunqiong Yue
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Publication number: 20030177942Abstract: An ink set for ink-jet recording includes two or more inks each of which contains water, a coloring agent, and a water-soluble organic solvent. The ink set is prepared so that a ratio (Vmin/Vmax) between a maximum permeation velocity Vmax of the ink and a minimum permeation velocity Vmin of the ink is not less than 0.6 when the respective inks are developed by means of paper chromatography on a certain paper. It is possible to suppress the bleeding of a formed image.Type: ApplicationFiled: March 12, 2003Publication date: September 25, 2003Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Hideto Yamazaki
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Publication number: 20030177948Abstract: A non-aqueous ink composition includes pigment, solvent and dispersant. The dispersant has an ester structure and the solvent contains not smaller than 60% by weight polar organic solvent. The polar organic solvent contains not smaller than 10% by weight ester solvent.Type: ApplicationFiled: March 12, 2003Publication date: September 25, 2003Applicant: Riso Kagaku CorporationInventors: Teruaki Ohkawa, Osamu Matsumoto
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Patent number: 6623553Abstract: An edible ink with a viscosity of about 2000 to about 16000 cp at 25° C.Type: GrantFiled: April 20, 2001Date of Patent: September 23, 2003Inventors: John Russell, Andrew Candler, Angela Wright
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Publication number: 20030172844Abstract: A dispersion comprising a particulate solid, a polar organic liquid and a dispersant of formula (1) wherein R is optionally substituted C4-50-hydrocarbyl; X is —O—, —S— or —NR2—; R1 is hydrogen or C1-6, -alkyl which may be linear or branched; R2 is hydrogen or C1-6, alkyl which may be linear or branched or a group —(C2H4O)n(AO)p—R1; AO is alkyleneoxy containing 3 or more carbon atoms; n is 0 to 30; p is 4 to 100; and p>n; and a is from 1 to 3. Preferred compounds are where R1 is hydrogen, X is —O— and a is 1 and R is the residue of 2-naphthol.Type: ApplicationFiled: February 13, 2003Publication date: September 18, 2003Inventor: Dean Thetford
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Publication number: 20030167965Abstract: The present invention discloses a magenta ink for ink-jet printing, which primarily includes red 184 and a carrier. The present invention also discloses a color ink set for ink-jet printing, which primarily includes (a) a magenta ink including red 184 and a carrier, (b) a yellow ink and (c) a cyan ink. According to the color ink set of the present invention, an excellent image and broad color gamut can be easily generated. Furthermore, the present invention provides good outdoorfastness and lightfastness.Type: ApplicationFiled: March 5, 2002Publication date: September 11, 2003Applicant: Everlight USA, Inc.Inventor: Jen Fang Lin
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Patent number: 6616741Abstract: An aqueous metallic ink composition comprising an aluminum powder pigment, a colorant, a polysaccharide, water, a water-soluble solvent and a material selected from a polyvinyl pyrrolidone, a polyethylene oxide or a compound thereof.Type: GrantFiled: July 13, 2000Date of Patent: September 9, 2003Assignee: Sakura Color Products Corp.Inventors: Tomohiro Sawa, Yuki Yamamoto
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Patent number: 6613136Abstract: A recording ink composition having a colorant insoluble and dispersible in water, water, a water-soluble organic solvent, a wetting agent, 2-ethyl-1,3-hexanediol, and at least one of surfactants of formulas (I) to (V): wherein R1, R2, R, R′, M−, m, k, n, p, and q are specified in the specification.Type: GrantFiled: September 15, 2000Date of Patent: September 2, 2003Assignee: Ricoh Company, Ltd.Inventors: Hitoshi Arita, Kiyofumi Nagai, Akiko Bannai, Masayuki Koyano