Patents Examined by Pamela R. Schwartz
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Patent number: 7060335Abstract: A recording medium comprises a base member mainly made of pulp fibers and an ink receiving layer formed thereon containing an inorganic pigment and a binder. The recording medium shows a pore radius distribution having a peak attributable to pores in the base member and a peak attributable to pores in the ink receiving layer. The peak attributable to pores in the ink receiving layer is located between 8 and 50 nm. The ink receiving layer is formed on the base member by applying a coating formulation containing at least an inorganic pigment and a resin emulsion to the base member at a coating rate between 1 and 10 g/m2 so that the inorganic pigment and the resin emulsion become weakly agglomerated. The recording medium can be suitably used with an ink-jet recording system.Type: GrantFiled: December 22, 2000Date of Patent: June 13, 2006Assignee: Canon Kabushiki KaishaInventor: Hirofumi Ichinose
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Patent number: 7056562Abstract: An inkjet recording element comprising a support having thereon, in order, a support having thereon a ink-receiving layer comprising a hydrophilic polymer and particles of an aluminosilicate in an amount of less than 30 weight percent solids, based on the total weight of the layer. Such recording elements exhibit improved humidity keeping for print sharpness.Type: GrantFiled: January 16, 2004Date of Patent: June 6, 2006Assignee: Eastman Kodak CompanyInventors: Richard J. Kapusniak, Charles E. Romano, Jr., Peter J. Ghyzel, Terry C. Schultz, Lori J. Shaw-Klein
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Patent number: 7052749Abstract: An inkjet recording element comprising a support having thereon a subbing layer comprising particles of an aluminosilicate for improved adhesion.Type: GrantFiled: January 16, 2004Date of Patent: May 30, 2006Assignee: Eastman Kodak CompanyInventors: Richard J. Kapusniak, Charles E. Romano, Jr., Lori J. Shaw-Klein, Peter J. Ghyzel, Terry C. Schultz
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Patent number: 7052748Abstract: An inkjet recording element comprising a support having thereon, in order, a support having thereon an ink-receiving layer comprising a hydrophilic polymer, a polymeric mordant, and particles of an aluminosilicate. Such recording elements exhibit improved humidity keeping.Type: GrantFiled: January 16, 2004Date of Patent: May 30, 2006Assignee: Eastman Kodak CompanyInventors: Richard J. Kapusniak, Charles E. Romano, Jr., Lori J. Shaw-Klein, Terry C. Schultz, Peter J. Ghyzel
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Patent number: 7008676Abstract: An ink jet recording element having a substrate having thereon: a) a subbing layer comprising an amine inactivated gelatin; and b) an image-receiving layer of a cross-linkable polymer containing hydroxyl groups and a polymeric mordant, the cross-linkable polymer being present at a thickness of from about 2 to about 40 ?m and the weight ratio of the cross-linkable polymer to the mordant being from about 30:70 to about 95:5.Type: GrantFiled: August 7, 2002Date of Patent: March 7, 2006Assignee: Eastman Kodak CompanyInventors: Charles E. Romano, Jr., Richard J. Kapusniak
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Patent number: 7001650Abstract: An intermediate transfer sheet for use in an intermediate transfer type thermal transfer recording method comprising a support, and at least a release layer and a receptive/adhesive layer laminated on the support in this order, the release layer comprising an acrylic resin, a polyester resin and a joint agent.Type: GrantFiled: May 27, 2004Date of Patent: February 21, 2006Assignee: Fujicopian Co., Ltd.Inventors: Jun Sogabe, Tomoaki Yamanaka
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Patent number: 6991835Abstract: An ink jet recording element comprising a support having thereon an image-receiving layer, the ink jet recording element containing core/shell particles wherein the shell of the particles consists a metal(oxy)hydroxide complex, Mn+(O)a(OH)b(Ap?)c•xH2O, wherein M is at least one metal ion; n is 3 or 4; A is an organic or inorganic ion; p is 1, 2 or 3; and x is equal to or greater than 0; with the proviso that when n is 3, then a, b and c each comprise a rational number as follows: 0?a<1.5; 0<b<3; and 0?pc<3, so that the charge of the M3+ metal ion is balanced; and when n is 4, then a, b and c each comprise a rational number as follows: 0?a<2; 0<b<4; and 0?pc<4, so that the charge of the M4+ metal ion is balanced.Type: GrantFiled: June 26, 2002Date of Patent: January 31, 2006Assignee: Eastman Kodak CompanyInventors: Krishamohan Sharma, Alexandra D. Bermel, Joseph F. Bringley, Christine Landry-Coltrain
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Patent number: 6984033Abstract: An ink jet printing method comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon an image-receiving layer, the ink jet recording element containing a metal hydroxide salt, (M2+)(OH)a(Ap?)b.xH2O; wherein: M2+ is at least one metal ion having a 2+ oxidation state; A is an organic or inorganic anion; p is 1 or 2; and x is equal to or greater than 0; and a and b comprise rational numbers as follows: 0<a<2 and 0<b<2 so that the charge of M2+ is balanced; C) loading the printer with an ink jet ink composition; and D) printing on the ink jet recording element using the ink jet ink composition in response to the digital data signals.Type: GrantFiled: June 26, 2002Date of Patent: January 10, 2006Assignee: Eastman Kodak CompanyInventors: Joseph F. Bringley, Krishamohan Sharma, Christine Landry-Coltrain
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Patent number: 6969445Abstract: The object of the present invention is to provide an ink jet recording paper of so-called plain paper type having no coating of pigment on the recording surface which is excellent in image density and color reproducibility of the recorded image and besides has a water resistance of the printed portion. According to the present invention, there is provided an ink jet recording paper which comprises a neutral base paper comprising a wood pulp as a main starting material on which is coated a coating solution containing a fluorescent brightening agent, a water-soluble binder and a cationic polymer fixing agent and in which the coated paper has an ISO whiteness of not less than 95% and a fluorescence intensity of 7–15% measured by a method specified in JIS P-8148 using a xenon flash lamp as a light source.Type: GrantFiled: April 12, 1999Date of Patent: November 29, 2005Assignee: Mitsubishi Paper Mills LimitedInventors: Yoshihiko Hibino, Koji Idei
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Patent number: 6945646Abstract: A recording medium includes a substrate and an ink-receiving layer provided on the substrate, wherein the ink—receiving layer includes an alumina hydrate having a boehmite structure, an average particle thickness of 2.0 to 6.0 nm and a crystallite size of 5.0 to 8.0 nm in a direction of a (020) plane, and the recording medium has a degree of parallelization of 30 to 1,000.Type: GrantFiled: September 23, 1999Date of Patent: September 20, 2005Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Ogino, Hitoshi Yoshino
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Patent number: 6916092Abstract: A recording method includes a step of ejecting onto a recording material ink having a Ka value of not more than 3 (ml.m?2.msec?1/2), applying to the ink deposited on the recording material processing liquid having a Ka value of not less than 5 (ml.m?2.msec?1/2) to insolubilized a coloring material in the ink inside the recording material; wherein the processing liquid is applied to the ink after rapid swell start point to after penetration of the ink into the medium passes after the ink is deposited on the recording material.Type: GrantFiled: August 10, 1998Date of Patent: July 12, 2005Assignee: Canon Kabushiki KaishaInventors: Noribumi Koitabashi, Hitoshi Tsuboi
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Patent number: 6911250Abstract: The present invention has an object to provide transfer paper for electrophotography which is excellent in paper-feed conveyability and image quality. The invention provides transfer paper for electrophotography having coated layers on both sides of a substrate material, comprising a first coated layer, containing a print seam, provided on at least one side thereof and a second coated layer provided on said first coated layer and having a print seam different from that of the first coated layer; wherein the total weight of the transfer paper for electrophotography is within a range from 60 to 130 g/m2.Type: GrantFiled: October 15, 2002Date of Patent: June 28, 2005Assignee: Canon Kabushiki KaishaInventor: Motohiro Ogura
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Patent number: 6908648Abstract: An ink-jet recording sheet containing a support having the following layers in the order: (a) a porous layer; and (b) a surface porous layer containing an organic particle A or an organic particle B, the organic particle A being insoluble in water and soluble in or swollen in a water soluble organic solvent having a SP value of 18.41 to 30.69 (MPa)1/2 and a boiling point of not less than 120° C.; the organic particle B comprising a copolymer having a specific recurring unit in an amount of not less than 5 weight % based on the total weight of the copolymer; the organic particle A and the organic particle B each having an average particle size of not more than 100 nm and a glass transition temperature of not less than 70° C., wherein the porous layer or the surface porous layer contains a compound having a polyvalent metal element.Type: GrantFiled: March 13, 2003Date of Patent: June 21, 2005Assignee: Konica CorporationInventor: Kenzo Kasahara
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Patent number: 6908191Abstract: An ink jet printing method having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element having a substrate having thereon: i) a subbing layer of a polymeric binder and a borate or a borate derivative, the borate or borate derivative being present in an amount of from up to about 3 g/m2, and the weight ratio of the polymeric binder to the borate or borate derivative is from about 0.2:1 to about 3:1; and ii) an image-receiving layer of inorganic particles and a cross-linkable polymer containing hydroxyl groups, the cross-linkable polymer being present in an amount of less than about 50 g/m2, and the weight ratio of the cross-linkable polymer to the inorganic particles is from about 5:95 to about 30:70; C) loading the printer with an inkjet ink composition; and D) printing on the image-receiving layer using the ink jet ink in response to the digital data signals.Type: GrantFiled: July 31, 2002Date of Patent: June 21, 2005Assignee: Eastman Kodak CompanyInventors: Yingchun Liu, Alexandra D. Bermel, Gregory E. Missell
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Patent number: 6884479Abstract: An ink jet recording element having a support having thereon an image-receiving layer of a polymeric network formed by a chemical reaction between a wet-strength polymer, amino-functionalized inorganic particles and a hydrophilic polymer other than a wet-strength polymer.Type: GrantFiled: December 16, 2002Date of Patent: April 26, 2005Assignee: Eastman Kodak CompanyInventors: Lixin Chu, Lori J. Shaw-Klein, Kenneth J. Ruschak, Elizabeth A. Gallo, Christine M. Vargas, Charles R. Salerno
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Patent number: 6871950Abstract: Disclosed herein is an image-transfer medium, comprising an ink vehicle-absorbing layer, which is subjected to a release treatment, and coloring material-retaining layer.Type: GrantFiled: February 11, 1999Date of Patent: March 29, 2005Assignee: Canon Kabushiki KaishaInventors: Masahiko Higuma, Yuko Sato, Yoshiyuki Shino
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Patent number: 6861111Abstract: An additive which can improve the water resistance of a water-soluble dye with which an article has been dyed; and an ink-jet recording medium which contains the additive, is exellent in the water resistance and resolution of characters or images recorded thereon, and is suitable for multicolor recordeng. The additive is obtained by reacting a secondary amine, ammonia, an epihalohydrin, and a crosslinking agent as essential ingredients. The recording medium is obtained by causing the additive to be present on a surface and/or inner part of a base.Type: GrantFiled: February 10, 2000Date of Patent: March 1, 2005Assignee: Nippon Paper Industries Co., Ltd.Inventors: Makoto Hasegawa, Noriko Kumazawa
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Patent number: 6846526Abstract: An ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles, a poly(vinyl alcohol) binder and a crosslinking agent, the particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, and the crosslinking agent being present in an amount of at least about 20 weight % of the poly(vinyl alcohol) binder.Type: GrantFiled: January 26, 2001Date of Patent: January 25, 2005Assignee: Eastman Kodak CompanyInventors: Alexandra D. Bermel, Lori J. Shaw-Klein
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Patent number: 6846525Abstract: Disclosed is a recording sheet which comprises a substrate and a material selected from the group consisting of purine compounds, pyrimidine compounds, benzimidazole compounds, imidazolidine compounds, urazole compounds, pyrazole compounds, triazole compounds, benzotriazole compounds, tetrazole compounds, pyrazine compounds, and mixtures thereof. Also disclosed is a recording sheet which consists essentially of a substrate, at least one material selected from the group consisting of purine compounds, pyrimidine compounds, benzimidazole compounds, imidazolidine compounds, urazole compounds, pyrazole compounds, triazole compounds, benzotriazole compounds, tetrazole compounds, pyrazine compounds, and mixtures thereof, an optional binder, an optional antistatic agent, an optional biocide, and an optional filler.Type: GrantFiled: February 15, 1994Date of Patent: January 25, 2005Assignee: Xerox CorporationInventor: Shadi L. Malhotra
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Patent number: 6838134Abstract: A recording sheet adaptable to print an image using pigment ink, on which a smear is hardly generated, is provided. A recording sheet includes an ink permeable layer prepared by adding 3-30 parts by weight of a nonionic surfactant including an amine compound as a main component to 30 parts by weight of a water-insoluble component including an inorganic filler and a binder as main components. Ink applied on such an ink permeable layer is directly absorbed into the layer in a depth direction without dispersing in a lateral direction. Therefore, any smear (banding) is hardly generated on a printed image formed on the recording sheet using ink.Type: GrantFiled: June 14, 2001Date of Patent: January 4, 2005Assignee: Sony Chemicals Corp.Inventors: Jun Takahashi, Akio Ito, Yukiko Murasawa, Hideaki Takahashi