Patents Examined by Geraldine Letscher
  • Patent number: 7022471
    Abstract: An organic silver salt dispersion containing: light-insensitive organic silver salt grains; photosensitive silver halide grains; a solvent; and a binder for dispersion, wherein the organic silver salt is prepared by using: (i) an alkaline metal salt of an organic acid other than a sodium salt; and (ii) a water soluble silver compound, and the binder is a polyvinyl acetal resin having a polymerization degree of 250 to 1000 and prepared by acetal forming reaction of a polyvinylalcohol with an aldehyde.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: April 4, 2006
    Assignee: Konica Minolta Medical & Graphic Inc.
    Inventor: Kenji Ohnuma
  • Patent number: 7022468
    Abstract: A silver halide color reversal photographic material providing images with superior graininess and enhanced sharpness is disclosed, comprising on a support a blue-sensitive silver halide emulsion layer containing a yellow dye forming coupler, a green-sensitive silver halide emulsion layer containing a magenta dye forming coupler and a red-sensitive silver halide emulsion layer containing a cyan dye forming coupler, wherein the photographic material has an ISO speed of 80 or more, and exhibits a gradation (?h) of at least 1.1 within the magenta dye density range of 0.3 to 1.0 on the characteristic curve and a gradation (?s) of at least 1.9 within the magenta dye density range of 1.0 to 2.5 on the characteristic curve and the photographic material satisfies the following requirement of interimage effect characteristic values (IIEh, IIEs): |IIEh|/|IIEs|>1.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: April 4, 2006
    Assignee: Konica Corporation
    Inventor: Tomoyuki Nakayama
  • Patent number: 7022470
    Abstract: A photothermographic imaging material having high sensitivity and superior temporal storage stability. The photothermographic imaging material includes silver halide on at least one side of a support, and includes at least one kind of the compounds represented by the following general formula (1).
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 4, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Kiyoshi Fukusaka, Kazuaki Nakamura, Ryouhei Iwamoto, Norio Miura, Nobuaki Kagawa, Soc Man Ho Kimura
  • Patent number: 7018770
    Abstract: A reflective radiographic material is useful to provide images that can be viewed without a light box. This reflective radiographic material has a reflective support and a silver halide emulsion on one side of the support only. The material can be used with a single green- or blue-light emitting fluorescent intensifying screen as part of an imaging assembly. The reflective support enables the image in the radiographic material to be viewed without a light box and the speed of the material enables the use of low power X-radiation generating equipment.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: March 28, 2006
    Inventors: Robert E. Dickerson, Kenneth A. Duke, Phillip C. Bunch, Alan S. Fitterman
  • Patent number: 7018790
    Abstract: A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: March 28, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • Patent number: 7014989
    Abstract: Black-and-white, aqueous-based, silver halide-containing photothermographic materials have increased stability after imaging with the incorporation of at least 0.00005 mol/m2 of a 4-substituted urazole.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: March 21, 2006
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, Kumars Sakizadeh
  • Patent number: 7014977
    Abstract: A reflective radiographic material (at least 200 system speed) is useful especially to provide images that can be viewed without a light box. This reflective radiographic material has a reflective support, a silver halide emulsion on one side of the support only, and a photographic speed of at least 200. The reflective material also includes an incorporated black-and-white developing agent and a co-developing agent, and can be used with a single fluorescent intensifying screen as part of an imaging assembly. The reflective support enables viewing the resulting image without a light box and the high speed of the material enables the use of low power X-radiation generating equipment. The incorporated black-and-white developing agent and co-developing agent allow the radiographic material to be quickly processed after exposure using simplified processing chemistry.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: March 21, 2006
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Kenneth A. Duke, Alan S. Fitterman
  • Patent number: 7008761
    Abstract: A process for the preparation of a radiation-sensitive silver halide emulsion comprised of high bromide cubical silver halide grains, the process comprising: (a) providing in a stirred reaction vessel a dispersing medium and high bromide silver halide grain cores, the grain cores comprising at least 5 mole % of the final emulsion silver and the contents of the vessel being maintained at a temperature of at least about 65° C., and (b) precipitating a high bromide silver halide shell which comprises at least 5 mole % of the final emulsion silver onto the grain cores by introducing at least a silver salt solution into the dispersing medium at a specified high rate, wherein a minor percentage of chloride ions, relative to bromide, is introduced into the reaction vessel prior to or concurrent with precipitation of the high bromide shell, and wherein the concentration of silver halide grains in the reaction vessel at the end of the precipitation of the shell is at least 0.5 mole/L.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: March 7, 2006
    Assignee: Eastman Kodak Company
    Inventor: Dirk J. Hasberg
  • Patent number: 7005251
    Abstract: A silver salt photothermographic dry imaging material including non-photosensitive aliphatic carboxylic acid silver salts; a photosensitive emulsion containing photosensitive silver halide grains; a silver ion reducing agent; a binder; and a cyan coloring leuco dye. A percentage of the photosensitive silver halide grains having a mean particle size of 0.01 or more ?m and 0.04 ?m or less is 5% or more by mass and 50% or less by mass of total photosensitive silver halide grains by conversion into a silver amount.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: February 28, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • Patent number: 6994953
    Abstract: A silver halide photosensitive material comprises a light-sensitive silver halide emulsion layer on a support. The photosensitive material has a layer comprising an emulsified dispersion containing a surfactant represented by formula (I), and an emulsion containing tabular silver halide grains having an average aspect ratio of 8 or greater, and at least one sensitizing dye. (R1-LnJA)m??General formula (I) wherein A represents an acid group or a metal salt thereof, R1 represents an aliphatic group containing a linear aliphatic group having 6 or more carbon atoms as a partial structure thereof and having the total number of carbon atoms of 17 or more, L represents a bivalent group, J represents a linking group of n+m valence, n is an integer of 1 to 6, and m is an integer of 1 to 3. The molecular weight of surfactant of the formula (I) divided by m is 430 or greater.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: February 7, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Matsuda, Yasushi Miyamoto, Tomokazu Yasuda
  • Patent number: 6984452
    Abstract: A composite structural laminate plate suitable for building maritime vessels or for building civil structures such as double hull oil tankers, bulk carriers, barges decks for roll-on roll-off ferries, orthotropic bridge decks or for building any structural application in which the traditional method of construction uses stiffened steel plates. The laminate has two facing metal layers that are structurally bonded to a polyurethane elastomer core which may have steel or rigid foam void sections embedded within. The laminate provides equivalent in plane and transverse stiffness and strength, reduces fatigue problems, minimizes stress concentrations, improves thermal and acoustical insulation, and provides vibration control. The laminate provides a structural system that acts as a crack arrest layer and that can join two dissimilar metals without welding or without setting up a galvanic cell.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: January 10, 2006
    Assignee: Intelligent Engineering (Bahamas) Limited
    Inventor: Stephen J. Kennedy
  • Patent number: 6984473
    Abstract: A light-block film is formed on a substrate, and a chemically amplified resist film is then formed on the light-block film. The chemically amplified resist film includes a photosensitive acid generator which generates an acid upon irradiation with activating light or radiation, and mainly contains a first resin that becomes soluble in bases by action of the acid. Next, a protective film is formed on the chemically amplified resist film and thereby yields a mask blank. The protective film is formed by dissolving a second resin and the photosensitive acid generator in a solvent that does not substantially dissolve the chemically amplified resist film to prepare a solution, and applying the solution to the chemically amplified resist film.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: January 10, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Teruhiko Kumada, Atsuko Fujino, Kazuyuki Maetoko
  • Patent number: 6979529
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having thereon at least on light-sensitive halide emulsion layer, wherein the emulsion layer contains a compound represented by formula (1).
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: December 27, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Katoh, Hiroo Takizawa
  • Patent number: 6979521
    Abstract: The present invention relates to manufacturing grayscale masks that are used for mass-producing grayscale DOEs. More specifically, the present invention provides a method whereby a grayscale mask is fabricated by using an absorber layer and a photoresist with a laser writer. The method of the present invention includes the steps of providing a substrate with a known layer of absorber and a layer of photoresist, exposing the photoresist to a grayscale pattern from a laser writer, developing the photoresist into variable thickness, and transferring the surface relief pattern from the photoresist layer onto the absorber layer by etching.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: December 27, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Xinbing Liu
  • Patent number: 6974663
    Abstract: A photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of an intercalation composition comprising a layered host material having molecules of the photographically useful compound inserted as guest molecules between the layers of the host material. The invention provide novels materials and a method of incorporating active chemistry compounds such as developers or development inhibitors directly into a photographic imaging element with improved stability and keeping response versus known methods for incorporating active chemistry compounds.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: December 13, 2005
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Krishnamohan Sharma, Kenneth J. Lushington
  • Patent number: 6974651
    Abstract: A method of making a photomask ensures that the mask pattern is precisely formed. A mask blank is provided in which an opaque film and a mask film are disposed on a transparent substrate. The mask film and the opaque film are successively etched to form an opaque pattern and a mask pattern. Next, a dimension of the opaque pattern is measured. If the measured dimension of the opaque pattern is smaller than a reference value, the opaque pattern is etched using the mask pattern as an etching mask to attain the desired dimension of the opaque pattern. The mask pattern is then removed.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: December 13, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yo-Han Choi
  • Patent number: 6969569
    Abstract: In photomask making, the environmental sensitivity of a chemically amplified photoresist is eliminated, or at least substantially reduced, by overcoating the photoresist with a thin coating (topcoat) of a protective but transmissive material. To provide improved stability during the long time period required for direct writing of a photomask pattern, typically in the range of about 20 hours, the protective topcoat material is pH adjusted to be as neutral in pH as possible, depending on other process variable requirements. For example, a pH adjusted to be in the range from about 5 to about 8 is particularly helpful. Not only is the stability of the chemically amplified photoresist better during direct writing when the protective topcoat is pH adjusted, but a photoresist-coated substrate with pH adjusted topcoat over its surface can be stored longer prior to imaging without adverse consequences.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: November 29, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Melvin Warren Montgomery, Cecilia Annette Montgomery
  • Patent number: 6969582
    Abstract: A silver halide emulsion comprising radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of an iridium ion in which at least half of the coordination sites in the hexacoordination complex are provided by halogen or pseudohalogen ligands, and at least one coordination site is provided by a ligand comprising a azole ring containing a chalcogen atom and a nitrogen atom, wherein the azole ring is substituted at the 5-position with a halide ion. The invention provides emulsions containing with a preferred class of iridium dopants which are especially useful for improving reciprocity performance in silver halide emulsions with minimal or no impact on other aspects of photographic performance. These dopants give a superior balance of reciprocity and other photographic properties compared to other iridium dopants exemplified in the prior art.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: November 29, 2005
    Assignee: Eastman Kodak Company
    Inventors: Myra T. Olm, Woodrow G. McDugle, Jr., Jeffrey C. Hansen, Thomas D. Pawlik, John D. Lewis, Jerzy Z. Mydlarz, Robert D. Wilson, Eric L. Bell
  • Patent number: 6951711
    Abstract: A silver halide color photographic lightsensitive material containing at least one compound capable of increasing photographic speed, the compound having at least three heteroatoms in its molecule, and wherein at least one layer of the silver halide emulsion layers comprises an emulsion, the emulsion consisting of a lightsensitive silver halide emulsion wherein 50% or more in number of all the silver halide grains are occupied by tabular grains having (111) faces as main planes, the tabular grains (i) composed of silver iodobromide or silver chloroiodobromide, (ii) having an equivalent circle diameter of 1.0 ?m or more and a thickness of 0.15 ?m or less, and (iii) composed of core portions of 0.1 ?m or less thickness free of growth ring structure and composed of silver iodobromide and shell portions having ten or more dislocation lines.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: October 4, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaaki Miki, Yoshiyasu Inami, Junichiro Hosokawa
  • Patent number: 6949332
    Abstract: A silver halide emulsion containing water, dispersion medium comprising modified gelatin whose amino group is chemically modified, and silver halide grains comprising spectrally sensitized silver halide grains each having a multilayer adsorption of dye chromophores on the surface thereof. A method of preparing the silver halide emulsion. A silver halide photosensitive material contains the silver halide emulsion in a light-sensitive silver halide emulsion layer thereof.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: September 27, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Kawakami, Mikio Ihama, Takeshi Suzumoto