Patents Examined by Hoa Van Le
  • Patent number: 6838230
    Abstract: A method is provided that is suitable fur use in processing a digitally exposed translucent or transparent display material. The method includes exposing a translucent or transparent material to light emitted from a light source. The material contains at least one silver halide having a silver content of at least about 1 g/m2 based on the area of the material. The method also includes contacting the material with a color developer solution comprising at least one color developing agent and a compound having the following formula (I): in which each of a and b independently represents 1 to 4, and in which each of X and Y independently represents a hydrogen, sodium or potassium atom. The duration of the step (b) is from about 60 to about 180 seconds.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: January 4, 2005
    Assignee: Fuji Hunt Photographic Chemicals, Inc.
    Inventors: Hai-xing Wan, Robert S. Harvey
  • Patent number: 6838233
    Abstract: A method of processing photographic color papers is carried out using a photographic bleach-fixing composition in a bleach-fixing step that is carried out for less than 60 seconds. The bleach-fixing composition comprises certain aliphatic or aromatic sulfur-containing compounds that include a —N?C(SH)— group. The bleach-fixing composition can be prepared from a two-part bleach-fixing kit having two solutions that can be added directly to a processing chamber or premixed to form a replenisher solution.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: January 4, 2005
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Schwartz, Valerie L. Kuykendall, Eric R. Schmittou, Leif P. Olson, Susan M. Flavin
  • Patent number: 6833235
    Abstract: A processing method has been provided for an exposed silver halide black-and-white negative working sound recording film element, said processing method comprising the steps of processing said sound recording film element in a processing apparatus providing processing ability in a daylight environment, said processing method comprising the steps of developing in a time of less than 20 seconds; fixing in a fixer; rinsing and drying; making use of an automatic processing machine, the mentioned processing steps being followed by a step of controlling black-and-white densitometry, therefor providing the processing machine with a densitometer; further recording in a motion picture color print film and processing therein image area frames originating from an exposed and processed color negative recording film and from (an) optical soundtrack(s) originating from a silver halide black-and-white negative working sound recording film element, wherein said film element has been processed, after having been exposed, by t
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: December 21, 2004
    Assignee: AGFA Gevaert
    Inventor: Jean Burtin
  • Patent number: 6830878
    Abstract: The present invention relates to a developer comprising a developing agent and a polyalkyleneimine antioxidant being formed by the condensation of a number of alkyleneimine units and having the following formula (I): wherein R1, R2 and R3 independently represent an unsubstituted or substituted alkylene group or R2 may be H; x and y independently represent an integer from 1 to 39,999; the sum of x and y represents an integer from 10 to 40,000; and wherein the amine groups of the antioxidant have been partially oxidized with hydrogen peroxide or a compound capable of generating hydrogen peroxide, prior to the introduction of the developing agent. In a preferred embodiment, the antioxidant has been partially oxidized such that the amount of hydroxylammonium groups formed is less than half the total equivalent of the original amine before the addition of the developing agent. The developer may optionally comprise an alkaline buffer.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: December 14, 2004
    Assignee: Eastman Kodak Company
    Inventor: John R. Fyson
  • Patent number: 6830880
    Abstract: A silver halide color photosensitive material for being subjected to a color development within nine seconds of being imagewise exposed, and comprising a support and a photograph constitution layer provided on the support, the photograph constitution layer containing at least one layer that comprises a yellow dye-forming coupler, at least one layer that comprises a magenta dye-forming coupler, at least one layer that comprises a cyan dye-forming coupler, and at least one non-photosensitive hydrophilic colloid layer. The coupler-comprising layers respectively include silver halide emulsions, and at least one of the silver halide emulsions has the characteristics of: (i) a silver halide content of 90 mol % or more; and (ii) containing at least one specific metal complexes. The color development is preferably completed within 28 seconds.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: December 14, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Oshima, Tadanobu Sato, Akito Yokozawa
  • Patent number: 6828084
    Abstract: A photographic bleaching composition has reduced odor and acceptable storage stability. It comprises an iron-ligand complex bleaching agent, a rehalogenating agent, and a phthalic acid or salt thereof. This bleaching composition can be used in various photographic processing protocols to provide color images from color photographic silver halide materials, especially photographic color papers. The bleaching step can also be preceded by an acidic stop that also includes a phthalic acid or salt thereof.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: December 7, 2004
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, Eric R. Schmittou, Therese M. Feller
  • Patent number: 6824966
    Abstract: A method of developing a latent image on a photographic element (such as imagewise exposed photographic film) by absorbing a dye precursor into the film, applying a developer solution to the film to develop the latent image and form a dye in the film, scanning the film with light, and detecting at least one of light reflected away from and light transmitted through the film.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: November 30, 2004
    Assignee: Eastman Kodak Company
    Inventors: Michael P. Keyes, Douglas E. Corbin
  • Patent number: 6824963
    Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: November 30, 2004
    Assignee: Eastman Kodak Company
    Inventors: John R. Fyson, Peter J. Twist
  • Patent number: 6824903
    Abstract: A hydrogen supplying device for a fuel cell includes a hydrogen occlusion tank in which a hydrogen occlusion alloy is contained, the hydrogen occlusion alloy being capable of occluding and discharging hydrogen which is used as fuel for a fuel cell; a hydrogen tank in which hydrogen to be supplied to the fuel cell can be stored in a compressed state; a heating unit which supplies heat to the hydrogen occlusion tank; a hydrogen supply line through which a flow of hydrogen supplied from the hydrogen occlusion tank and a flow of hydrogen supplied from the hydrogen tank can be merged to be supplied to the fuel cell; and a flow rate controlling device which controls a flow rate of hydrogen supplied from the hydrogen occlusion tank and/or a flow rate of hydrogen supplied from the hydrogen tank.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: November 30, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Shimada, Takahiro Kuriiwa, Yoshio Nuiya
  • Patent number: 6824914
    Abstract: A fuel cell/battery uses amine-based liquid complexes as a direct oxidation fuel in an alkaline fuel cell/battery. Oxidant solutions are used on the cathode side to improve power density.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: November 30, 2004
    Assignee: Energetics, Inc.
    Inventor: Subramanian T. M. Iyer
  • Patent number: 6824965
    Abstract: A bleach or bleach/fixing solution for processing photographic silver halide materials which, relative to the silver halide content of the unprocessed material, exhibit prior to the bleaching step a content of silver arising from development of at least 65 mol %, in particular for processing color reversal materials, characterized in that the solution contains at least one iron complex of propylenediaminetetraacetic acid or of &bgr;-alaninediacetic acid or a mixture of these complexes and the total concentration of the stated iron complexes in the solution is at least 0.045 and at most 0.25 mol/l and a process for processing, in which such a solution is used, is characterized by a small introduced quantity of iron complexes, a low residual silver content, a low bleaching fog value, elevated resistance to precipitation and in that the bleach solution may be rejuvenated.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: November 30, 2004
    Assignee: AGFA-Gevaert
    Inventors: Ralf Wichmann, Thomas Hübsch, Thomas Stetzer
  • Patent number: 6824964
    Abstract: The invention provides an image forming method in which a silver halide color photosensitive material has a back layer on an opposite side to the silver halide emulsion layers. The back layer contains colloidal silica and has a surface resistance of 1.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: November 30, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tatsuya Ishizaka, Terukazu Yanagi, Atsushi Kato
  • Patent number: 6824702
    Abstract: The invention relates to an apparatus and a process for the preparation of salt melts, and mixtures thereof, by means of a stirred reactor and a tubular reactor, in which the starting materials are melted and brought to reaction, and the reaction products are subsequently passed through columns or towers for purification.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: November 30, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Leonhard Ohrem, Susanne Brzezinski
  • Patent number: 6821301
    Abstract: The present invention provides a spin finish for elastic fibers which comprises an amphoteric surfactant and/or a cationic surfactant as well as a base oil and has a surface tension thereof at 25 of 14 to 35 mN/m and a volume resistivity thereof at 20 of 1×107 to 1×1013 &OHgr; cm; a spin finish for elastic fibers which comprises an ionic surfactant and a base oil and has a surface tension (S) thereof at 25° C. of 14 to 22.5 mN/m and a volume resistivity (&rgr;) thereof at 20° C. of 1×107 to 1×1013 &OHgr; cm, &rgr; and S satisfying the following relation [1]; &rgr;≦1×10(−2.4S+61)  [1] a spin finish for elastic fibers which comprises a quaternary ammonium salt of the specific composition, a base oil and a higher fatty acid (C5-30) metal salt powder; a method of treating an elastic fiber which comprises providing an elastic fiber with any of the above spin finish for elastic fibers in an amount of 0.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: November 23, 2004
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Ikunori Azuse, Yoshiyuki Wakahara
  • Patent number: 6818388
    Abstract: A silver halide color photographic photosensitive material comprising, on a reflective support, at least one yellow-coloring photosensitive silver halide emulsion layer, at least one magenta-coloring photosensitive silver halide emulsion layer, at least one cyan-coloring photosensitive silver halide emulsion layer and at least one non-photosensitive, non-coloring hydrophilic colloid layer. Reflective density A(&lgr;) at a wavelength &lgr; at an unexposed portion of the material after a color development treatment is 0.08 or less for 450 nm, 0.10 or less for 550 nm, and 0.08 or less for 650 nm. Alternatively, chromaticity at the unexposed portion of the material after the color development treatment satisfies the condition: 91≦L*≦96, 0≦a*≦2.0, −9.0≦b*≦−3.0. Also provided is a process for forming an image using the silver halide color photographic photosensitive material.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: November 16, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiyuki Makuta, Shin Soejima, Hiroyuki Yoneyama
  • Patent number: 6815146
    Abstract: A resist composition containing a fluoropolymer, an acid-generating compound and an organic solvent, a resist film, and methods for making thereof.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: November 9, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Shinji Okada, Yasuhide Kawaguchi, Yoko Takebe, Isamu Kaneko, Shun-ichi Kodama
  • Patent number: 6811923
    Abstract: Positive electrode active material for nonaqueous electrolytic solution secondary batteries is made of a metal oxide. A content of coarse particles, of which particles sizes are 600% or more with respect to an average particle size of the metal oxide, is 1% or less by volume, and a content of high density particles, of which densities are 150% or more with respect to an average density of the metal oxide, is 1000 ppm or less. By using the positive electrode active material, battery characteristics and a manufacturing yield may be improved.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: November 2, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryo Sakai, Yasuhiro Shirakawa, Kotaro Iyasu, Nobukazu Suzuki, Hisayasu Mitsui
  • Patent number: 6808837
    Abstract: An enclosed direct oxidation fuel cell system is provided. The system is sealed with one or more layers of a plastic enclosure that conforms directly to the shape of the fuel cell system. The enclosure is substantially comprised of one or more layers of materials that are non-reactive with the fuel substance used in the fuel cell. In accordance with one aspect of the invention, one of the materials is a plastic film material that provides a good seal to substantially prevent liquids from escaping from the system. Yet, the enclosure is lightweight and conforms substantially to the exterior body of the fuel cell system so that it adds little or no bulk to the fuel cell system. The enclosure also prevents water from leaking out of the system. The enclosure materials may include color-changing properties so that in the event of a leak, it is visually apparent that liquid is in contact with the enclosure.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: October 26, 2004
    Assignee: MTI Microfuel Cells, Inc.
    Inventor: Robert S. Hirsch
  • Patent number: 6806041
    Abstract: The color light-sensitive material has at least four light-sensitive layers of different spectral sensitivity waveforms in a visible range, with a covariance between spectral sensitivities of at least four light-sensitive layers being no more than 0.5, and at least four light-sensitive layers, after development processing; being colored with color materials having different spectral absorption waveforms. The image processing method and apparatus expose and develop the color light-sensitive material described above to form an image, allow the image formed on the color light-sensitive material to be entered by an image input device having at least four light-sensitive portions of different spectral sensitivity waveforms and perform color transformation with an image converting unit on an input image obtained by entering.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: October 19, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takafumi Noguchi, Junichiro Hosokawa, Mitsuhiro Uchida, Yasuhiro Shimada
  • Patent number: 6803179
    Abstract: Concentrated and working strength photographic color developing compositions are stabilized with the inclusion of two specific types of calcium ion sequestering agents. One of the sequestering agents is a polyelectrolyte such as a polycarboxylic acid or salt thereof having a molecular weight of from about 2000 to about 100,000. The other one is a non-polymeric aminocarboxylic acid, polyphosphonic acid, or a salt thereof. The weight ratio of the first calcium ion sequestering agent to the second calcium ion sequestering agent is from about 1:1 to about 20:1. These compositions can be used to process color photographic materials such as color photographic papers.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: October 12, 2004
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston