Patents Examined by Patrick Doody
  • Patent number: 5064750
    Abstract: The invention discloses an improved method for processing a silver halide color photographic material wherein said material is imagewise exposed and then processed. The improvement comprises the use of a particular naphthol amido coupler together with a bleaching bath containing (diaminopropanetetraacetatoiron) (III) complex salt at a particular pH.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: November 12, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hideki Naito
  • Patent number: 5063134
    Abstract: A photosensitive composition contains a polymer having a unit represented by formula I, and a photosensitive agent: ##STR1## wherein each of R.sub.1 to R.sub.4 represents a hydrogen atom, an alkyl group, an alkoxyl group, or a substituted or non-substituted allyl group, at least one of R.sub.1 to R.sub.4 being an alkyl groups having 1 to 10 carbon atoms and containing silicon, l represents a positive integer, and each of a and b represents an integer from 1 to 3, and c represents an integer from 0 to 2, a+b+c not exceeding 4.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: November 5, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Rumiko Horiguchi, Shuzi Hayase, Yasunobu Onishi
  • Patent number: 5055373
    Abstract: A multicolor recording material is disclosed, which comprises a support having provided thereon a coating layer comprising two or more kinds of microcapsules each containing at least a leuco dye capable of being colored by oxidation and a photo oxidizing agent outside said microcapsules, and a reducing agent as necessary components, with two or more leuco dyes capable of forming different colors from each other being retained in different kinds of said microcapusles respectively composed of walls of high polymers having different glass transition points.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: October 8, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiso Saeki, Fumiaki Shinozaki, Toshiaki Endo
  • Patent number: 5028516
    Abstract: A method of forming an image comprising exposing, developing and fixing a laser scanner-utilizable silver halide photographic material which has at least one silver halide emulsion layer sensitized spectrally in an infrared region on one side of a support, said silver halide photographic material containing in at least one layer located on the emulsion layer side one or more of an additive selected from among:(1) surface active agents having a solubility of 0.005 wt % or more at 30.degree. C. in a developer and a surface tension of 45 dyne/cm or less (measured at 30.degree. C. in a condition of 1.0 wt % aqueous solution), and(2) polymers represented by the following general formula (I), and having a molecular weight of from 2,000 to 500,000:--X).sub.x (Y).sub.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: July 2, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Mukunoki, Naoki Arai, Kazuo Kagawa
  • Patent number: 5024909
    Abstract: Wavelength response of volume holograms is altered by contact with a dry film diffusion element.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: June 18, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William K. Smothers, Krishna C. Doraiswamy, Mark L. Armstrong
  • Patent number: 5017546
    Abstract: Phenol/aldehyde condensation products useful in the development of colored images from colorless dyes are disclosed. The phenol/aldehyde condensation products are produced by the interaction of an alkyl-substituted salicylic acid, an alkyl-substituted phenol, an aldehyde, and a metal source. The phenol/aldehyde condensation products are particularly useful in a photosensitive imaging system in which images are formed by the image-wise reaction of the developer with one or more chromogenic materials, and in carbonless copy paper systems.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: May 21, 1991
    Inventors: Karl M. Brinkman, John L. Sullivan, David R. Hanley
  • Patent number: 5013633
    Abstract: A method of preparing a color proof from a silver halide color photographic light-sensitive material and a black-and-white halftone dot image is disclosed, wherein said light-sensitive material has on a support the photographic component layers including silver halide emulsion layers each having different spectral sensitivities, and one of said silver halide emulsion layers comprises a magenta coupler represented by Formula M-I; ##STR1## wherein Z represents a group of non-metal atoms necessary to form a nitrogen-containing heterocyclic ring including a substituted one; X represents one selected from the group consisting of a hydrogen atom and a group capable of splitting off upon a reaction with an oxidized product of a developer; and R represents one selected from the group consisting of a hydrogen atom and a substituent.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: May 7, 1991
    Assignee: Konica Corporation
    Inventors: Tomomi Yoshizawa, Keiji Ogi, Nariko Kimura
  • Patent number: 4994345
    Abstract: A method for making a color proof in a photo-mechanical process. The method comprises a step for exposing a silver halide color photographic light-sensitive material to light through a black-and-white halftone dot image, and a step for developing said silver halide color photographic light-sensitive material with a color developer. The photographic material is comprised of at least three silver halide emulsion layers which are different from each other in spectral sensitivity thereof, and at least one of these silver halide emulsion layers contains a specific yellow coupler and the color developer contains a specific color developing agent. A halftone color image having a color tone similar to that of image printed with printing inks can be obtained by the simplified process.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: February 19, 1991
    Assignee: Konica Corporation
    Inventors: Tomomi Yoshizawa, Keiji Ogi, Nariko Kimura
  • Patent number: 4990431
    Abstract: The invention is performed by providing a first flow of water and surfactant, a second flow comprising solvent, base and photographic material, and mixing said first and second streams and either simultaneously or immediately following thereof neutralizing said streams to prevent hydrolysis of a hydrolyzable surfactant and/or premature precipitation of particles before neutralization. The streams then may be immediately treated for formation into photographic materials. In a preferred method the first and second stream may be brought together immediately prior to a mixer with addition of acid directly into the mixer to neutralize the dispersion of fine particles.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: February 5, 1991
    Assignee: Eastman Kodak Company
    Inventors: Pranab Bagchi, James T. Beck, Lia A. Crede
  • Patent number: 4985347
    Abstract: A method for processing silver halide color photographic material is disclosed which comprises processing a silver halide color photographic material with a color developer containing substantially no sulfite ion and then processing the color photographic material with a solution having bleaching capability containing an aminopolycarboxylic acid having a molecular weight of at least 300.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: January 15, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Fujimoto, Morio Yagihara, Takatoshi Ishikawa
  • Patent number: 4985339
    Abstract: A light-sensitive material comprises a light-sensitive layer containing a light-sensitive silver halide, a reducing agent and a polymerizable compound having an ethylenic unsaturated group which is provided on a support. The light-sensitive layer contains a polymer binder having an ethylenic unsaturated double bonding group in its side chain. The light-sensitive material is advantageously employable as a lithographic plate.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: January 15, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeo Koizumi, Yoshihide Hayakawa
  • Patent number: 4983504
    Abstract: A method for processing photographic silver halide color negative film and color negative paper each through its own color developing solutions wherein the paper color developing solution is replenished and the overflow from this replenished solution is used to replenish the film color developing solution and wherein (a) the color paper is based on substantially pure silver chloride emulsions and contains no more than 1% molar silver bromide based on total silver halide and (b) both color developing solutions and the replenisher are free from benzyl alcohol.Apparatus for carrying out the above-described method comprises a series of processing stations and means for advancing the photographic material being processed through the apparatus wherein there is provided means for collecting the overflow from the paper developer station and means for passing it directly or indirectly to the film processing station.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: January 8, 1991
    Assignee: Eastman Kodak Company
    Inventors: Peter D. Marsden, John R. Fyson, Peter J. Twist
  • Patent number: 4977058
    Abstract: A transfer recording medium comprises a support and a transfer recording layer formed thereon capable of charging its transferability when provided with light energy and heat energy. The transfer recording layer comprises at least a colorant and a functional component sensitive to the provision of light energy and heat energy. The functional component comprises at least a photo-initiator and a polymerizing component of a monomer, oligomer or prepolymer having an unsaturated double bond. The polymerizing component has a melting point of 40.degree.-150.degree. C. Because of the inclusion of the polymerizing component which is solid at room temperature, the transfer recording layer has an excellent storability as well as an increased sensitivity contrast to illumination between under heating and under no heating.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: December 11, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Miyagawa, Masanori Takenouchi, Norio Ohkuma
  • Patent number: 4973542
    Abstract: A transfer recording medium comprises a substrate and a transfer recording layer disposed thereon capable of changing its transfer characteristic when provided with light energy and heat energy. The transfer recording layer comprises image forming elements which are solid at room temperature and comprise at least a colorant and a functional component sensitive to the provision of light energy and heat energy. Since the image forming elements have a mode particle size of 5-25 .mu.m and comprise 50% by number or more of those having a particle size of .+-.4 .mu.m or less from the mode particle size, the transfer recording medium affords a clear transferred image with high resolution at a high transfer rate when provided with light and heat energies, at least one of which is applied imagewise.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: November 27, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Takenouchi, Masashi Miyagawa, Norio Ohkuma
  • Patent number: 4971884
    Abstract: A light-sensitive material comprising a light-sensitive layer which contains silver halide grains, a reducing agent and a polymerizable compound provided on a support, characterized in that not less than 20% of the silver halide grains are tabular grains having an aspect ratio of not less than 3.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: November 20, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Soichiro Yamamoto
  • Patent number: 4965181
    Abstract: A heat-developable light-sensitive material comprising a support having provided thereon a light-sensitive layer comprising a silver halide which is spectrally sensitized with at least one dye represented by formula (I): ##STR1## wherein R.sub.0 and R.sub.1, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a halogen atom, an alkoxycarbonyl group, an acylamino group, an acyl group, a cyano group, a carbamoyl group, a sulfamoyl group, a carboxyl group, or an acyloxy group; provided that at least one of R.sub.0 and R.sub.1 represents a group other than a hydrogen atom; R.sub.2 represents a hydrogen atom, an alkyl group, or an aryl group; R.sub.3 represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, or an acylamino group; provided that when R.sub.3 represents an aryl group, R.sub.0 and R.sub.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: October 23, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiiti Kubodera, Akihiko Ikegawa, Masaki Okazaki
  • Patent number: 4965152
    Abstract: Holographic notch filters are provided that comprise photopolymer films, having an optical density of at least 2, mounted on a transparent substrate.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: October 23, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dalen E. Keys, William K. Smothers, Torence J. Trout
  • Patent number: 4963459
    Abstract: The present invention provides a method of registering to an imaging web moving within an imaging web handling apparatus along an imaging web path. The imaging web comprises a support having a coating of photosensitive microcapsules on the surface thereof. The photosensitive microcapsules have an internal phase of a photosensitive composition and a color former. Exposure of the imaging web to actinic radiation defines an image area and a border area.A registration mark is formed on the web by exposing a portion of the web area to actinic radiation so that the portion undergoes a color or reflection change, or exposing all but a portion of the border area to actinic radiation so that the exposed area undergoes a color or reflection change. The registration mark is detected and in response to detection of the registration mark, an operation is performed on the imaging web.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: October 16, 1990
    Assignee: The Mead Corporation
    Inventors: Jack Beery, David A. Boyer
  • Patent number: 4963466
    Abstract: A silver halide photographic light-sensitive material comprising a support bearing thereon at least one silver halide emulsion layer containing a dye-forming coupler and a compound represented by Formula [I] as defined in the specification. The light-sensitive material further comprises at least one silver halide emulsion layer containing silver halide grains having a silver chloride content of not less than 90 mole percent and a compound represented by Formula [S] as defined in the specification.The presence of the compounds of Formula [I] and Formula [S] provide a material having a suitable contrast and having additional advantages such as excellent BF contamination resistance and pH variation resistance.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: October 16, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Makoto Kajiwara, Masanobu Miyoshi, Kaoru Onodera, Eiichi Sakamoto
  • Patent number: 4959291
    Abstract: A light-sensitive material comprising a light-sensitive layer containing silver halide, a reducing agent, a polymerizable compound and a leuco dye provided on a support, characterized in that the leuco dye has the following formula (I): ##STR1## in which each of R.sup.1 and R.sup.2 independently is hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group or an aryl group, or R.sup.1 and R.sup.2 together with the neighboring nitrogen atom form a 5- or 6-membered ring; X is hydrogen, a halogen atom, an alkyl group, an alkoxy group, --NHCOR.sup.3 or --OCOR.sup.4 (each of R.sup.3 and R.sup.4 is an alkyl group or an aryl group) or --NR.sup.5 R.sup.6 (R.sup.5 and R.sup.6 have the same meanings as for R.sup.1 and R.sup.2); Y is an alkyl group or an aralkyl group; Z is hydrogen, an alkyl group or an aryl group; and each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X, Y, Z and the benzene ring A may have one or more substituent groups.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: September 25, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toru Harada, Toshiyuki Watanabe