Patents Examined by Pamela R. Schwartz
  • Patent number: 6403202
    Abstract: A recording material for the ink-jet printing method comprises a raw base paper, an extrudable polyvinyl alcohol containing layer which is extruded on the raw base paper, and an ink-receiving layer which is applied as an aqueous dispersion or solution.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: June 11, 2002
    Assignee: Felix Schoeller Technical Papers
    Inventors: Jiren Gu, Sanford K. Lauderback
  • Patent number: 6391427
    Abstract: An ink jet recording element, prior to image recording, comprising a substantially transparent support having thereon an image-recording layer comprising a polymeric binder, a colorant, and porous, colorless aggregates of particles having a primary particle size of from about 7 to about 40 nm in diameter and being aggregated up to about 300 nm.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: May 21, 2002
    Assignee: Eastman Kodak Company
    Inventors: Lori J. Shaw-Klein, Elizabeth A. Gallo, Eric L. Dillenbeck, Scott E. Derry
  • Patent number: 6383611
    Abstract: An ink jet recording sheet having an ink receiving layer formed on at least one side of a support, wherein the pore volume in the ink receiving layer is at least 0.80 ml/g, and the pore volume of pores with pore radii of from 5,000 to 50,000 Å in the ink receiving layer is at least 0.40 ml/g.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: May 7, 2002
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Akira Kohno, Osamu Kojima
  • Patent number: 6372329
    Abstract: The present invention relates to ink-jet recording media suitable for use with dye and pigmented inks. The media comprise a substrate coated with at least two ink-receptive layers. The upper layer comprises a modified poly(vinyl alcohol) compound and plasticizer, particularly a maleic or itaconic acid-modified poly(vinyl alcohol). The first ink-receptive layer may comprise a partially hydrolyzed poly(vinyl alcohol). The media can record high quality multi-colored images with minimal inter-color bleeding and pigmented ink cracking.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: April 16, 2002
    Assignee: Arkwright, Incorporated
    Inventors: Tomasz Graczyk, Khizyr K. Khoultchaev, Boping Xie
  • Patent number: 6361853
    Abstract: An ink jet recording element comprising a support having thereon the following layers in the order recited: a) a hydrophilic absorbing layer comprising gelatin or poly(vinyl alcohol); b) an adhesion promoting layer comprising pectin or alginate; and c) a hydrophilic overcoat layer comprising hydroxyethyl cellulose.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: March 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Lori J. Shaw-Klein, Eric L. Boyle, Brian L. Lindstrom
  • Patent number: 6348260
    Abstract: A heat transfer white-image-printing sheet including a substrate film, and a white ink layer including a resin as a main component of the binder thereof and fine hollow particles, provided on one surface of the substrate film. This printing sheet can produce, with high sensitivity, an image having sufficiently high white-color density and hiding power, and excellent abrasion resistance.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: February 19, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Keiichi Ogawa, Shuji Kobayashi
  • Patent number: 6344262
    Abstract: An ink jet recording medium which comprises a substrate and a porous layer containing an alumina hydrate formed on the substrate, wherein Mg ions and SCN ions are contained in said porous layer.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: February 5, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventor: Shinichi Suzuki
  • Patent number: 6342289
    Abstract: In a recording medium having a porous ink-receiving layer containing alumina hydrate of boehmite structure formed on a base material, the alumina hydrate has crystallinity ranging from 15 to 80 and microcrystals of the alumina hydrate are directed to be parallel to a plane direction of the ink-receiving layer at a parallelization degree of not less than 1.5. The recording medium is employed in an ink-jet recording method conducting printing by ejecting ink droplets through an orifice onto the recording medium. A process for producing the recording medium comprises the steps of: applying a coating liquid containing alumina hydrate of boehmite structure with shearing stress onto a base material; and drying the coated material to obtain a degree of parallelization of a microcrystal of the alumina hydrate with a plane direction of the ink-receiving layer of not less than 1.5.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: January 29, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeo Eguchi, Kyo Miura, Hitoshi Yoshino
  • Patent number: 6340516
    Abstract: The present invention relates to ink jet recording materials and method for making the same. The material has a gel layer formed on a base material to improve the optical density of the material and improve the printing quality of ink of pigment type. The method for forming the gel layer is to coat a first ink-receptive layer composed of high valance metallic halide, such as calcium chloride (CaCl2) or magnesium chloride (MgCl2), on the base layer, then a second ink-receptive layer composed of alginate, such as sodium alginate, potassium alginate or other compounds of alginic acid, on the first ink-receptive layer. The second and the first ink-receptive layers will react to form a gel layer during coating for absorbing ink dots and improving print quality.
    Type: Grant
    Filed: January 30, 1999
    Date of Patent: January 22, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Shu-Chu Shih, Charng-Shing Lu, Jing-Pin Pan
  • Patent number: 6335085
    Abstract: An ink jet recording sheet having excellent gloss and ink absorption and capable of recording clear ink images with a high color density includes a substrate sheet impregnated or coated with a cationic compound; an ink-receiving layer formed on the cationic compound-applied substrate sheet and containing a pigment and a binder and a gloss layer formed on the ink receiving layer and containing a polymer resin produced from ethylenically unsaturated monomers.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: January 1, 2002
    Assignee: Oji Paper Co., Ltd.
    Inventors: Shinichi Asano, Takaaki Kouro, Shunichiro Mukoyoshi
  • Patent number: 6329043
    Abstract: An ink-jet printing dye-fixing agent is provided which comprises a quaternary cationic polymer having the main chain represented by general formula (1): where R1, R2, R3, and R4 are independently an aliphatic alkyl group of 1 or 2 carbons; R is an aliphatic alkylene group of 1-6 carbons or a phenylene group; and n is an integer of from 3 to 300. A recording paper sheet employing the fixing agent is also provided. This fixing agent has excellent ink dye fixability, and makes ink coloring excellent and improves water resistance of the printed matter.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: December 11, 2001
    Assignee: Nicca Chemical Co., Ltd.
    Inventors: Tatsuo Uchida, Noriaki Kobayashi, Ikuo Kameoka
  • Patent number: 6299967
    Abstract: The present invention relates to ink jet recording media that are useful for making temporary tattoo images on human skin or other surfaces. The media comprise a water-soakable release-paper substrate coated with an ink jet imaging layer. The substrate is optionally coated with a water-insoluble protective layer. The media may further comprise a pressure-sensitive adhesive tape having a backing coated with a medical adhesive layer.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: October 9, 2001
    Assignee: Arkwright Incorporated
    Inventors: Mike Collins, Steven J. Sargeant, David Atherton
  • Patent number: 6294243
    Abstract: The present invention provides a new ink jet recording sheet being capable forming an excellent printed graphic of an oil ink and being excellent in the fixation and coloration of an oil ink particularly containing a petroleum high-boiling point solvent. The ink jet recording sheet comprises an interlayer 2 and an ink receiving layer 3 on at least one side of a substrate 1 wherein a resin forming the interlayer 2 contains a resin dissolved and/or swollen in a petroleum high-boiling point solvent.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: September 25, 2001
    Assignee: Nisshinbo Industries, Inc.
    Inventor: Atsushi Nakamura
  • Patent number: 6284348
    Abstract: Disclosed herein is an ink-jet printing cloth composed of cellulose fibers, wherein the specific gravity of the cloth in an absolute dry condition is controlled within a range of from 1.45 to 1.49 by mercerization.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: September 4, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mariko Suzuki, Masahiro Haruta, Shoji Koike, Koromo Shirota, Aya Takaide, Tomoya Yamamoto
  • Patent number: 6270881
    Abstract: Disclosed herein is a recording medium for ink-jet, comprising a substrate composed of kenaf paper, and an ink-receiving layer provided on the substrate, wherein the ink-receiving layer comprises an alumina hydrate, a compound represented by the general formula wherein R1, R2, R3 and R4 are, independently of one another, a substituted or unsubstituted alkyl group, and X1− is an anion of a fluoride, chloride, bromide, iodide, astatide, sulfate, alkoxylsulfate, sulfite, phosphate, phosphite, perchlorate, perbromate, periodate or chlorate, and a compound represented by the general formula wherein R5, R6, R7 and R8 are, independently of one another, a substituted or unsubstituted alkyl group except that at least one of R5, R6, R7 and R8 is a substituted or unsubstituted aryl or arylalkyl group, and X1− is an anion of a fluoride, chloride, bromide, iodide, astatide, sulfate, alkoxylsulfate, sulfite, phosphate, phosphite, perchlorate, perbromate, periodate or chlorate
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: August 7, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiya Yuasa, Motokazu Kobayashi
  • Patent number: 6261669
    Abstract: The invention relates to an ink jet recording medium having two coating layers on a base substrate. The surface coating layer of the medium primarily comprises inorganic particulates and the underlayer coating layer of the medium primarily comprises polymeric materials. More particularly, this invention relates to an ink jet recording medium that performs well within a full environment range.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: July 17, 2001
    Assignee: Arkwright Incorporated
    Inventors: Sen Yang, Miaoling Huang, Dave Atherton, Steven J. Sargeant, Kang Sun
  • Patent number: 6244701
    Abstract: Provided is a recording medium comprising an ink-receiving layer provided on at least one face of a base material, wherein a surface of the ink-receiving has the maximum specular glossiness within a measurement angle range of from 20° to 60°.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: June 12, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenichi Moriya, Mamoru Sakaki, Kazuo Iwata, Akio Kashiwazaki
  • Patent number: 6238784
    Abstract: An ink-jet recording sheet comprises a support, and provided thereon, an ink absorption layer containing solid fine particles, a hydrophilic binder, and oil drops in an amount of 5 to 50 weight % based on the solid fine particle weight, the content ratio by weight of the solid fine particles to the hydrophilic binder being 2 to 200, wherein the oil drops comprise an hydrophobic organic compound having a melting point of 40° C. or less or polymer particles having a glass transition temperature of 40° C. or less.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: May 29, 2001
    Assignee: Konica Corporation
    Inventors: Yoshihiro Mochizuki, Masaru Tsuchiya
  • Patent number: 6238804
    Abstract: The present invention is directed to an ink jet recording medium, and more particularly to an ink jet recording medium prepared with an ink absorbent coating that is used to receive aqueous dye-based ink. The ink absorbent coating comprises a blend of at least one cellulose ether and stilbene optical brightener. The medium has a &Dgr;E value of no greater than about 5, as measured according to CIE 1976 (L*a*b*) uniform color scale method, after the medium has been imaged with a magenta color-image.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: May 29, 2001
    Assignee: Arkwright Incorporated
    Inventors: David Atherton, Odette Glass
  • Patent number: 6231964
    Abstract: Thermal transfer ribbons with large wax or thermoplastic resin particles within the thermal transfer layer provide a profiled surface which resists transfer of the layer to reverse side of the ribbon when wound onto itself and stored. The large particles preferably have an average diameter in the range of 5 to 20 microns and the thermal transfer layers preferably have an average thickness of less than the average diameter of these large particles. Where the large particles have higher softening temperatures in the range of 50° to 150° C., the energy needed to transfer the thermal transfer layer is reduced.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: May 15, 2001
    Assignee: NCR Corporation
    Inventors: Thomas C. Miller, Jr., Yaoping Tan, Thomas J. Obringer