Patents Examined by Pamela R. Schwartz
  • Patent number: 6652928
    Abstract: Disclosed herein is an image-transfer medium for ink-jet printing, comprising a base material, and a releasing layer and a transfer layer, both, provided on the base material, wherein the transfer layer comprises fine particles of a water-insoluble thermoplastic resin, a water-insoluble thermoplastic resin binder and a crosslinking agent coated with a thermoplastic resin.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: November 25, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuko Sato, Masahiko Higuma, Motokazu Kobayashi, Yoshiyuki Shino
  • Patent number: 6649233
    Abstract: An image recording element for inkjet ink images comprises, in the following order, a support, an absorbent base layer; and, a top layer which is ink receptive and comprises one or more hydrophilic polymers, gelatin, a crosslinking agent for gelatin and a humectant.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: November 18, 2003
    Assignee: Eastman Kodak Company
    Inventor: Julie Baker
  • Patent number: 6649234
    Abstract: Provided is a fine powder material for forming an ink-receiving layer on a recording medium, wherein a pore radius maximum exists within a range of from 90 to 120 Å in a pore radius distribution of said fine powder material and wherein a total volume of pores having radii not exceeding 50 Å is not more than 6.0% of a volume of all pores.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: November 18, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanobu Asaoka, Akemi Ishizaki, Nobuyuki Hosoi, Katsutoshi Misuda
  • Patent number: 6649252
    Abstract: An ink jet recording element comprising a support having thereon an image-receiving layer containing an ink jet image and an overcoat layer of a water-dispersible, hydrophobic polyester resin having the following general formula: In—P—Am wherein I is an ionic group; n is an integer from 1-3; P is a polyester backbone; A is an aliphatic group comprising a straight or branched chain fatty acid or triglyceride thereof having from about 6 to about 24 carbon atoms; and m is an integer from 3-8.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: November 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Romano, Jr., Sandra D. Nesbitt, Lawrence P. DeMejo
  • Patent number: 6645583
    Abstract: A heat-sensitive transfer recording medium comprising a substrate and a heat-sensitive transfer ink layer provided on the substrate, the heat-sensitive transfer ink layer being a coating of a hot-melt ink containing no solvent therein, the heat-sensitive transfer ink layer containing carbon black having a DBP oil absorption of 100 to 200 ml/100 g and a BET specific surface area of 100 m2/g or less, and the heat-sensitive transfer ink layer having a surface resistivity of not more than 1013 &OHgr;/□.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: November 11, 2003
    Assignee: Fujicopian Co., Ltd.
    Inventors: Yoshihide Kaneshiro, Seigo Kato, Yukihiro Uejima
  • Patent number: 6635319
    Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder, an organic, cationic mordant and thermoplastic polymer particles.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 21, 2003
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sridhar Sadasivan, Michelle M. Oakland, Patrick J. Whittaker, John W. Janssen, Craig T. Mollon
  • Patent number: 6632486
    Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 14, 2003
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Suresh Sunderrajan, Michelle M. Oakland, Patrick J. Whittaker, Elwood C. Samons, Craig T. Mollon
  • Patent number: 6632488
    Abstract: An ink jet recording material which includes a paper sheet substrate and an ink receiving layer containing a xerogel porous pigment and has excellent ink-absorption and reproducibility of ink images with high clarity and precision, exhibits a water-dipping expansion of 0.3% or less, determined by the same method as the JAPAN TAPPI No. 27-B method except that the length of the recording material immersed in water is measured 15 seconds after the start of the immersion.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: October 14, 2003
    Assignee: OJI Paper Co., LTD
    Inventors: Yoshitaka Okumura, Takaaki Kohro, Yoshiharu Kawashima, Hiromasa Kondo
  • Patent number: 6630212
    Abstract: An inkjet recording element comprising a support having thereon a porous image-receiving layer comprising: (a) 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 (b) water insoluble, cationic, polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: October 7, 2003
    Assignee: Eastman Kodak Company
    Inventors: Alexandra D. Bermel, Lori J. Shaw-Klein
  • Patent number: 6627272
    Abstract: The present invention relates to a back print type ink jet recording sheet, and, particularly, an object of the invention is to provide an ink jet recording sheet coping with oily ink. The ink jet recording sheet comprising an intermediate layer and an ink-receiving layer laminated on a light-transmittable substrate, wherein the intermediate layer is formed of a rubber-based resin, the receiving layer is formed of a hydrophobic resin and a ratio Y/X of reflection density Y of the substrate side to reflection density X of the receiving layer side in a print section when printing using oily ink on the receiving layer is 1.0 or more.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: September 30, 2003
    Assignee: Nisshinbo Industries, Inc.
    Inventor: Atsushi Nakamura
  • Patent number: 6613419
    Abstract: An ink jet recording sheet is disclosed, comprising a support having on at least one side of the support an ink absorbing layer, wherein the surface of the ink absorbing layer side of the sheet exhibits a center-line mean roughness (Ra) of 0.4 to 2.5 &mgr;m and a ten-point mean roughness (Rz) of 5×Ra to 20×Ra when measured at a reference length of 2.5 mm and a cut-off value of 0.8 mm.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: September 2, 2003
    Assignee: Konica Corporation
    Inventors: Keiji Ohbayashi, Kenichi Yoshitsuka
  • Patent number: 6607811
    Abstract: There is provided by the present invention, a thermal transfer ribbon for printing directly on cartons without the use of labels and a method for using the same.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: August 19, 2003
    Assignee: NCR Corporation
    Inventors: Richard D. Puckett, David J. Rainbow
  • Patent number: 6605336
    Abstract: Provided is a recording medium provided with a porous ink-receiving layer containing thermoplastic resin particles and an inorganic pigment laminated on a substrate, wherein the pore radius distribution curve of said porous ink-receiving layer has a maximum peak in a pore radius range of from 1 &mgr;m to 10 &mgr;m and at least one peak in a pore radius range of from 0.001 &mgr;m to 0.1 &mgr;m and the total volume of pores having radii of from 0.1 &mgr;m to 20 &mgr;m is not less than 0.5 cm3/g.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: August 12, 2003
    Assignee: Canon Kabuskiki Kaisha
    Inventors: Hirofumi Ichinose, Masako Ichioka
  • Patent number: 6592970
    Abstract: An ink jet recording material excellent in all characteristics including drying property, ink absorbency, water resistance and the like, is provided. The ink jet recording material has an ink-receiving layer comprising hydrophilic resin and inorganic pigment, the ink-receiving layer containing silica particles surface-doped with alumina as the inorganic pigment. The alumina-doped silica is prepared by a process employing flame hydrolysis techniques combined with pyrolysis. The ink-receiving layer preferably contains the alumina-doped silica in an amount ranging from 5 to 200 weight parts based on 100 weight parts of the hydrophilic resin.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: July 15, 2003
    Assignees: Kimoto Co., Ltd., Degussa AG
    Inventors: Tetsuji Ohta, Mitsuru Ochiai, Helmut Mangold
  • Patent number: 6576324
    Abstract: Disclosed herein is a printing medium provided on a base material with a porous ink-receiving layer which comprises, as principal components, an alumina hydrate having a boehmite structure and a binder, wherein when measuring with an ink containing 0.1% by weight of a surfactant, the time required to absorb 30 ng of an ink is 400 milliseconds or shorter, the dye-adsorbing capacity falls within a range of from 900 to 2,000 mg/m2, and the index of dye-adsorbing rate falls within a range of from 0.0 to 5.0.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: June 10, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Yoshino, Yoshikuni Ito
  • Patent number: 6565953
    Abstract: An ink jet recording element comprising a support having thereon in order: a) a hydrophilic, fluid-absorbing layer, and b) an image-receptive layer capable of retaining an ink jet image, the image-receiving layer comprising an open-pore membrane of a mixture of a water-insoluble polymer and a water-absorbent polymer, the mixture containing at least about 25% by weight of the water-absorbent polymer.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: May 20, 2003
    Assignee: Eastman Kodak Company
    Inventors: Christine J. Landry-Coltrain, David M. Teegarden
  • Patent number: 6565949
    Abstract: The present invention provides ink jet recording media suitable for use in making polymeric film laminates, and film laminates thereof. The recording medium comprises a substrate and two ink-receptive coating layers. The first ink-receptive layer comprises a water-soluble polymer and alumina hydrate particulate, and the second ink-receptive layer comprises a water-soluble quaternary amine-containing polymer. The ink jet recording media are capable of providing recorded images having good image quality waterfastness, and lightfastness.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: May 20, 2003
    Assignee: Arkwright Incorporated
    Inventors: Yongzhong Wang, Caridad H. Rahim
  • Patent number: 6566303
    Abstract: A thermal transfer material which has at least a light to heat converting layer and an image forming layer on a supporting body, and the image forming layer containing at least one compound which is selected from the compounds which are represented in the following general formula (1) and the following general formula (2). In the general formula (1), R1 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen atom, or an alkoxy group having 1 to 5 carbon atoms; and R2 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms. n represents any integer of 1 to 4. In the general formula (2), R3 and R4 represent respectively independently a nitro group, a halogen atom, a methylsulfonyl group, or a cyano group.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: May 20, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hideyuki Nakamura
  • Patent number: 6558740
    Abstract: Disclosed herein is a printing medium comprising a substrate and an ink-receiving layer which comprises an alumina hydrate surface-treated with a coupling agent and is provided on the substrate.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: May 6, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Santo, Hiroyuki Sugata, Yuji Kondo, Hiroshi Tomioka
  • Patent number: 6548151
    Abstract: An ink jet recording element comprising a support having thereon in order: I) a porous base layer comprising 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 which are dispersed in a binder, and II) a porous image-receiving layer comprising: (a) 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 (b) water insoluble, cationic, polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety; the thickness of layer I) being between about 35 and about 50 &mgr;m and the thickness of layer II) being between about 2 and about 6 &mgr;m.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: April 15, 2003
    Assignee: Eastman Kodak Company
    Inventors: Alexandra D. Bermel, Lori J. Shaw-Klein