And Dye Patents (Class 430/390)
  • Patent number: 8409792
    Abstract: Silver halide photographic elements that are color intermediate motion picture films have at least one green sensitive silver halide emulsion that includes a green sensitizing dye that is a cyanine dye having two oxazole groups in the molecule, and another green sensitizing dye having either two imidazole groups in the molecule or one oxazole group and one thiazole group in the molecule. The molar ratio of the first green sensitizing dye to the second green sensitizing dye is from about 4:1 to about 0.3:1. The magenta dye image forming unit has at least one green sensitive silver halide emulsion layer that comprises predominantly cubic silver iodobromide grains having at least 90 mol % bromide and at least 1 mol % iodide, which grains have an average equivalent spherical diameter (ESD) of less than 0.25 ?m.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: April 2, 2013
    Assignee: East Kodak Company
    Inventor: Jeffrey C. Hansen
  • Patent number: 7998665
    Abstract: Silver halide photographic elements that are color intermediate motion picture films have at least one green sensitive silver halide emulsion that includes a green sensitizing dye that is a cyanine dye having two oxazole groups in the molecule, and another green sensitizing dye having either two imidazole groups in the molecule or one oxazole group and one thiazole group in the molecule. The molar ratio of the first green sensitizing dye to the second green sensitizing dye is from about 4:1 to about 0.3:1. The magenta dye image forming unit has at least one green sensitive silver halide emulsion layer that comprises predominantly cubic silver iodobromide grains having at least 90 mol % bromide and at least 1 mol % iodide, which grains have an average equivalent spherical diameter (ESD) of less than 0.25 ?m.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: August 16, 2011
    Assignee: Eastman Kodak Company
    Inventor: Jeffrey C. Hansen
  • Patent number: 7732124
    Abstract: A color-image forming method in a silver halide color photographic light-sensitive material, having the steps of: performing exposure of the light-sensitive material cut into sheets; and subjecting the exposed light-sensitive material sheets to photographic processing, while conveying them with conveying rollers, with the sheet conveying speed being 40.0 to 100 mm/sec; wherein the light-sensitive material to be exposed contains any of: 1) a dye-forming coupler of formula (IA), 2) a compound of formula (I), and 3) 1.4 mg/m2 or more of a compound of formula (II); wherein R? and R? are a substituent; Z is a hydrogen atom, or a coupling split-off group; A is an alkyl group, M is a cation, and R is an atom or group having 100 or lower total molecular weight.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: June 8, 2010
    Assignee: Fujifilm Corporation
    Inventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
  • Patent number: 7687229
    Abstract: A silver halide color photographic light-sensitive material having, on a support, at least each one light-sensitive silver halide emulsion layers containing yellow-, magenta-, or cyan-dye-forming-coupler, and at least one light-insensitive hydrophilic colloid layer, wherein at least one of the dye-forming couplers is a dye-forming coupler that forms an azomethine dye having a solubility of 1×10?8 mol/L to 5×10?3 mol/L in ethyl acetate; and an image forming method using the light-sensitive material.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: March 30, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Yasuaki Deguchi, Kiyoshi Takeuchi, Mamoru Sakurazawa, Makoto Yamada, Takehiko Satou
  • Patent number: 7632632
    Abstract: Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed magenta dye that is present in an amount to provide a status M green density greater than 0.005 per mg/m2. This dye provides minimum density at lower cost and enables lower dye levels and a reduced organic load that may lead to improved film physical properties.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: December 15, 2009
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, John W. Harder, Drake M. Michno, James H. Reynolds, Steven P. Szatynski
  • Patent number: 7629112
    Abstract: Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m2. This colorant provides minimum density at lower cost and can be incorporated with minimal or no organic solvents and thus enable a reduced organic load that may lead to improved film physical properties.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: December 8, 2009
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Drake M. Michno, James H. Reynolds, Steven P. Szatynski, John W. Harder
  • Patent number: 7598025
    Abstract: The present invention is characterized to provide a hologram silver halide photographic material having high sensitivity and diffraction efficiency, providing an excellent image and having less color residue and noise in a transparent part, a hologram, a method for producing the same. In the present invention, a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein an average particle diameter of silver halide particles in a silver halide emulsion is 0.03 ?m to 0.07 ?m; a film thickness of the silver halide emulsion layer is 4 ?m to 9 ?m; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains sensitizing dye of specific structure.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: October 6, 2009
    Assignees: Konica Minolta Opto Inc., Dia Nippon Printing Co., Ltd.
    Inventors: Kenji Michiue, Tomonobu Moriya, Masashi Iwasaki, Toshihiro Kubota, Masachika Watanabe, Tsuyoshi Yamauchi, Tomoko Kumasawa, Kenji Ueda
  • Patent number: 7241562
    Abstract: This invention relates to a color silver halide photographic element comprising gelatin, a support bearing at least one dye image forming unit selected from a dye image forming unit comprising at least one red sensitive silver halide emulsion layer having associated therewith a dye-forming coupler, a dye image forming unit comprising at least one green sensitive silver halide emulsion layer having associated therewith a dye-forming coupler, and a dye image forming unit comprising at least one blue sensitive silver halide emulsion layer having associated therewith a dye-forming coupler; and a polymer represented by Formula 1.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: July 10, 2007
    Assignee: Eastman Kodak Company
    Inventors: Sidney J. Bertucci, David M. Teegarden, David E. Decker, Thomas H. Whitesides, Larry D. Edwards
  • Patent number: 7153644
    Abstract: A silver halide color photosensitive material, which has: at least each one layer of yellow-, magenta- and cyan-color-forming photosensitive silver halide emulsion layers on a reflective support, and at least one non-light-sensitive non-color-forming hydrophilic colloidal layer; wherein at least one of the photosensitive silver halide emulsion layers contains a silver halide emulsion containing 90 mol % or more of silver chloride, and a compound having a repetitive unit of formula (I) is contained: wherein R1 is —OR, —SR or —N—R(—R?), where R and R? are a hydrogen atom, or an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic group, or R and R? may form a saturated carbon ring or a heterocycle; R2 and R3 are a hydrogen atom or an alkyl group; Y1 and Y2 are a polymethylene, arylene or cycloalkylene group; Z is —O—, —SO2— or —CH2—; and m is 0 or 1.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: December 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akito Yokozawa, Tetsuo Nakamura, Katsuyuki Takada
  • Patent number: 7087365
    Abstract: A method for forming images on a silver halide color photographic photosensitive material having a substrate and photographic structural layers thereon, including, at least three silver halide color photosensitive layers having different photosensitive regions, respectively, and at least one non-photosensitive hydrophilic colloid layer is disclosed. At least one of the photosensitive layers contains 90 mol % or more of silver chloride. Shortly after the silver halide color photographic photosensitive material has been scan-exposed with laser beams, the material is rapid-processed with a low replenishing amount.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: August 8, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Ohshima, Akito Yokozawa, Naoya Shibata
  • Publication number: 20040053175
    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: Application
    Filed: September 8, 2003
    Publication date: March 18, 2004
    Inventors: Michael P. Keyes, Douglas E. Corbin
  • Publication number: 20030228544
    Abstract: A method for forming images on a silver halide color photographic photosensitive material having a substrate and photographic structural layers thereon, including, at least three silver halide color photosensitive layers having different photosensitive regions, respectively, and at least one non-photosensitive hydrophilic colloid layer is disclosed. At least one of the photosensitive layers contains 90 mol % or more of silver chloride. Shortly after the silver halide color photographic photosensitive material has been scan-exposed with laser beams, the material is rapid-processed with a low replenishing amount.
    Type: Application
    Filed: April 14, 2003
    Publication date: December 11, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Naoto Ohshima, Akito Yokozawa, Naoya Shibata
  • Patent number: 6620562
    Abstract: The present invention is directed to a method of scanning silver-halide-containing color photographic and photothermographic film. In particular, the present invention comprises a photographic element comprising at least one infrared imaging dye-forming agent in a blue-sensitive color layer of the element, thereby forming at least one image record in the infrared region of the imagewise exposed and developed element. This expedient leads to the formation of high quality images when scanning photographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: September 16, 2003
    Assignee: Eastman Kodak Company
    Inventors: James H. Reynolds, David H. Levy, Robert W. Kulpinski, Leif P. Olson, Wojciech K. Slusarek
  • Patent number: 6579669
    Abstract: This relates to a method of rendering a used photographic processing solution less corrosive to low carbon steel comprising: taking at least a used photographic processing solution containing a color developing agent and a used photographic processing solution containing a bleaching agent; delivering the used photographic processing solutions to a collection vessel to form a used photographic processing composition; and adjusting the pH of the used photographic processing composition to 6.5 to 11.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: June 17, 2003
    Assignee: Eastman Kodak Company
    Inventors: Eric R. Schmittou, Cynthia A. Salsedo
  • Publication number: 20020146651
    Abstract: A color-developing agent of the formula (1-1): 1
    Type: Application
    Filed: July 25, 2001
    Publication date: October 10, 2002
    Inventors: Osamu Uchida, Yasuhiro Ishiwata, Takayuki Ito, Nobutaka Fukagawa
  • Publication number: 20020110764
    Abstract: The present invention provides a silver halide photographic material that is excellent in photographic speed as well as image graininess and exhibits low residual color even after rapid processing. The silver halide photographic material contains a compound represented by formula (I) and a compound represented by formula (II), as defined.
    Type: Application
    Filed: March 26, 2001
    Publication date: August 15, 2002
    Inventors: Katsuhisa Ohzeki, Tetsuo Nakamura, Takanori Hioki
  • Publication number: 20020086249
    Abstract: A method of processing a silver halide color photographic lightsensitive material. The material comprises a support and at least one lightsensitive silver halide emulsion layer containing a binder and lightsensitive silver halide grains comprising tabular grains on the support. The material further comprises a developing agent or its precursor, and a compound capable of forming a dye by a coupling reaction with the developing agent in an oxidized form. The method comprises (a) exposing the material under natural light of 2000-9000K color temperature or artificial light corresponding thereto, for {fraction (1/10)}-{fraction (1/1000)} sec, in an exposure amount such that 80-90% (numerical ratio) of the grains contained in the lightsensitive layer have at least one development initiating point per grain, and (b) color developing the exposed material so that the tabular grains have 3.0 or more (average) development initiating points per grain at the completion of the development.
    Type: Application
    Filed: May 2, 2001
    Publication date: July 4, 2002
    Inventors: Makoto Kikuchi, Yoshio Ishii, Toshio Kawagishi
  • Publication number: 20020055070
    Abstract: A silver halide photographic light-sensitive material comprising, on a support, at least one light-sensitive silver halide emulsion layer and at least one non-light-sensitive layer, wherein 60% or more of the total projected area of silver halide grains contained in said at least one light-sensitive silver halide emulsion layer are tabular silver halide grains having an average aspect ratio of 5 or more, and a film pAg on the light-sensitive silver halide emulsion layer side of said material falls within 4.0 to 8.5.
    Type: Application
    Filed: June 8, 2001
    Publication date: May 9, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Minoru Uchida
  • Publication number: 20020022201
    Abstract: A red sensitive photographic recording material is disclosed having an emulsion layer with low silver halide and low binder content. It further comprises a polyester support having subbing layers on both sides and an anti-halation layer on the back side.
    Type: Application
    Filed: June 26, 2001
    Publication date: February 21, 2002
    Inventors: Roland Claes, Stefaan Lingier, Etienne Van Thillo
  • Publication number: 20010041314
    Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.
    Type: Application
    Filed: December 4, 2000
    Publication date: November 15, 2001
    Inventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus
  • Patent number: 6207359
    Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: March 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus
  • Patent number: 6190821
    Abstract: A photosensitive silver halide film material is disclosed comprising a support and on one or both sides thereof one or more layer(s) comprising a photosensitive silver halide emulsion wherein tabular silver halide crystals having an average thickness of less than 0.25 &mgr;m and an average aspect ratio of 2 or more are present characterized in that said photosensitive silver halide emulsion layer(s) comprise(s) blue colored polymeric matting particles.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: February 20, 2001
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Hubert Vandenabeele
  • Patent number: 6183944
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption halfbandwidth of less than 55 nm.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: February 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Patent number: 6027868
    Abstract: Disclosed are a silver halide light-sensitive material for forming a monochrome-image which material is colored in orange, a silver halide light-sensitive material for forming a monochrome-image which material has an identical printing level as at least one of the silver halide color light-sensitive materials provided for a negative-positive type color photographic system, and a photo-taking unit loading and packaging in a photographable state at least one of the monochrome image forming silver halide light-sensitive material. The invention provides a silver halide light-sensitive material for forming a monochrome-image which is suitable for a negative-positive system color photographic processing and is easy for printing onto a photographic paper.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: February 22, 2000
    Assignee: Konica Corporation
    Inventors: Masaru Iwagaki, Toshihiko Iwasaki
  • Patent number: 6013430
    Abstract: A thermal recording element comprising a support having thereon a recording layer comprising a J-aggregate cyanine dye dispersed in a hydrophilic binder, the J-aggregate dye having the formula: whereinX and Y each independently represents O, S, a NR group or CH.dbd.CH;R represents a substituted or unsubstituted alkyl group having from about 1 to about 6 carbon atoms;R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 each independently represents a substituted or unsubstituted alkyl or alkoxy group having from about 1 to about 6 carbon atoms; halogen; a substituted or unsubstituted aryl group having from about 6 to about 10 atoms; or a substituted or unsubstituted heteroaryl group having from about 5 to about 10 atoms;any two adjacent substituents on the aryl ring may be taken together to form a 6-membered aromatic ring;R.sup.5 and R.sup.6 each independently represents a substituted or unsubstituted alkyl group having from about 1 to about 6 carbon atoms or sulfoalkyl;L.sup.1, L.sup.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: January 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Huijuan D. Chen, Derek D. Chapman
  • Patent number: 5939246
    Abstract: A process of compositing two or more separate images comprising: (a) imagewise exposing a color negative photographic recording material to a subject in front of a uniformly colored screen background, wherein the photographic recording material comprises a support bearing red light, green light, and blue light sensitive color records, and at least one distributed red light absorbing compound in an amount such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed light absorbing compounds, (b) forming a color negative image of the subject and screen background by developing the exposed photographic material with a color developing agent, (c) separating the subject image of the color negative from the screen background image, and (d) compositing the separated subject image with a second image.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: August 17, 1999
    Assignee: Eastman Kodak Company
    Inventors: John C. Brewer, Donald H. Hunger
  • Patent number: 5728511
    Abstract: A silver halide photographic material is provided which exhibits nearly equal sensitivities and gamma values with respect to yellow, magenta and cyan to form a black-and-white image of neutral black or sepia tone, even when it is processed with a color developer free from benzyl alcohol.The silver halide photographic material is made up of a substrate and at least one silver halide emulsion layer formed on the substrate. The silver chloride content of silver halide grains constituting the silver halide emulsion layer is 95 mole % or above, the silver halide emulsion is spectrally sensitized by a specific sensitizing dye, and the silver halide emulsion layer contains a yellow coupler, a magenta coupler and a cyan coupler. The image-forming process is characterized by developing the silver halide photographic material with a color developer substantially free from benzyl alcohol.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: March 17, 1998
    Assignee: Oriental Photo Industrial Co., Ltd.
    Inventors: Toshio Hirosawa, Kouji Katsube, Junichi Komiyama, Yoshiro Hayafuchi, Toshiko Nakamura
  • Patent number: 5714307
    Abstract: A silver halide photographic material comprises a support, at least one silver halide emulsion layer and at least one non-light-sensitive hydrophilic colloidal layer. The silver halide emulsion layer or the hydrophilic colloidal layer contains a colorant having the absorption maximum wavelength within the infrared region of 700 to 1,100 nm. The colorant is in the form of solid particles dispersed in the silver halide emulsion layer or in the hydrophilic colloidal layer. The solid particles cannot substantially be removed by a processing solution of the silver halide photographic material. An image forming process employing the silver halide photographic material is also disclosed.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: February 3, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toru Harada, Keiichi Suzuki, Shigeru Ohno, Koji Wariishi, Yoshiharu Yabuki
  • Patent number: 5707792
    Abstract: A silver halide photographic light sensitive material is disclosed, comprising a support having thereon photographic component layers including a silver halide emulsion layer and a light insensitive hydrophilic colloidal layer, wherein at least one of the component layers contains a leuco dye represented by the following formula.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: January 13, 1998
    Assignee: Konica Corporation
    Inventors: Taketoshi Yamada, Norio Miura, Emiko Kataoka, Katsunori Katoh
  • Patent number: 5705312
    Abstract: There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of a quaternary pyridinium compound which has a fused 5 - to 12 - member saturated carbocyclic ring attached to the 2 and 3 positions of the pyridine ring.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: January 6, 1998
    Assignee: Polaroid Corporation
    Inventors: Donna J. Guarrera, Neil C. Mattucci, Avinash C. Mehta, Lloyd D. Taylor, John C. Warner
  • Patent number: 5604079
    Abstract: There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of an acylpyridine-N-oxide compound.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: February 18, 1997
    Assignee: Polaroid Corporation
    Inventors: Michael P. Filosa, Edward D. Kingsley, Kenneth C. Waterman
  • Patent number: 5460923
    Abstract: A processing method for silver halide photographic material is disclosed, in which at least one hydrophilic colloidal layer containing a dye of a solid fine grain dispersion. The processing method is carried out by processing the photographic material with a solution having a fixing ability containing at least one compound represented by formula (A):RSO.sub.2 SM (A)wherein R represents an aliphatic group, an aryl group or a heterocyclic group, and M represents a hydrogen atom or a cation group.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: October 24, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masatoshi Goto, Yoshihiro Fujita
  • Patent number: 5441854
    Abstract: A process is disclosed for forming a color photographic image comprising the steps of:(a) providing an integral element comprising one and only one dimensionally stable layer comprising a reflection base or transparent base coating support, and coated thereon in reactive association an imaging layer comprising radiation sensitive silver halide, a diffusible dye forming layer comprising a diffusible dye forming compound, and a barrier layer overlaying said diffusible dye forming layer;(b) exposing this integral element to actinic radiation(c) processing this integral element by contacting this element to an external bath containing compounds selected from the group consisting of color developer compounds, compounds which activate the release of incorporated color developers, and compounds which activate development by incorporated dye developers; and(d) washing this integral element to remove compounds imbibed in step (c). The diffusible dye forming layer is the same or different than the imaging layer.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: August 15, 1995
    Assignee: Eastman Kodak Company
    Inventors: John Texter, Wayne A. Bowman, Glenn T. Pearce
  • Patent number: 5418116
    Abstract: The invention relates to providing a method of toning a black-and-white image formed with color couplers comprising providing a developed image, applying a hue changing material to said print wherein the hue of at least dye in said print is changed.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: May 23, 1995
    Assignee: Eastman Kodak Company
    Inventors: Gary R. Gottschalk, Joseph I. Varga
  • Patent number: 5262286
    Abstract: The invention is generally accomplished by providing a reflection print material having thereon sensitized silver halide containing layers and at least one layer comprising at least one insoluble colored tint, wherein said at least one tint changes the color of said material to be less yellow. In a preferred form, it has been found that a combination of two tints is preferred to provide ready adjustment of the tinting to match the yellowing characteristics of the print material.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: November 16, 1993
    Assignee: Eastman Kodak Company
    Inventors: John F. Bacilek, Gary J. McSweeney
  • Patent number: 4980262
    Abstract: A photographic contact printing process is disclosed having application in the mass production of replicate video discs from a master disc, and other applications wherein it is desired to replicate micro-detail over a relatively large area. A problem with conventional contact printing from a mask to a photographic medium is one of maintaining intimate contact over a relatively large area since dust, dirt, etc., are almost impossible to completely eliminate in any practical manner. In accordance with the present invention, a contact printing process is provided wherein intimate contact is not necessary for making high quality contact prints. The present invention recognizes that in contact printing information from a master disc to a replicate disc, the contact printing process is significantly less sensitive to imperfect contact between the master disc and the replicate disc if one employs a replicate disc comprising a photosensitive material having a certain optical properties.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: December 25, 1990
    Assignee: Eastman Kodak Company
    Inventors: Harold T. Thomas, Dennis G. Howe
  • Patent number: 4888266
    Abstract: The invention relates to a process for producing supports intended for the optical recording and reading of information. A layer containing a diazo compound is deposited onto a metallized substrate. Recording is obtained by exposing the support to light through a mask, the exposed zones of the layer of diazo compound being decomposed. Dry development in ammonia vapors shows up transparent zones and opaque zones corresponding to the information.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: December 19, 1989
    Assignee: Thomson Brandt
    Inventors: Jean-Pierre Lacotte, Claude Puech
  • Patent number: 4775614
    Abstract: An ecologically advantageous method for fixing a developed photographic silver halide emulsion layer material which involves the steps of:(A) developing an image-wise exposed silver halide emulsion layer with a developing agent in the presence of an aqueous alkaline liquid,(B) bringing the developed photographic material while still wet with the liquid of step (A) with its silver halide emulsion layer side in intimate contact with a water-absorbing layer of a receptor element, which layer comprises an organic hydrophilic colloid binder, a silver halide complexing agent, and in dispersed form a metal sulphide as silver ion scavenging agent,(C) maintaining said photographic material and receptor element in contact to allow the transfer of dissolved complexed silver compound into said receptor element, and(D) separating the photographic material from the receptor element, andwherein said water-absorbing layer contains said metal sulphide in colloidal form with an average grain size below 0.1 .mu.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: October 4, 1988
    Assignee: Agfa-Gevaert N.V.
    Inventor: Gino L. De Rycke
  • Patent number: 4738917
    Abstract: A method for processing a silver halide photographic material by processing a silver halide color photographic light-sensitive material containing at least a silver halide emulsion layer comprising a silver halide grain essentially consisting of silver chlorobromide and a binder having a swelling rate of T 1/2 of 2 sec. to 30 sec. The color developer contains a n-hydroxyalkyl-p-phenylenediamine derivative at a temperature not less than 30.degree. C. for a time not more than 150 sec. The time and temperature are effective to process the silver halide color photographic light-sensitive material without decreasing the stability of the resulting dye image.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: April 19, 1988
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shigeharu Koboshi, Satoru Kuse, Kazuhiro Kobayashi, Masao Ishikawa, Masayuki Kurematsu
  • Patent number: 4708927
    Abstract: A novel photographic element is disclosed. The element comprises a light-sensitive element including a light-sensitive silver halide emulsion layer coated on a support, wherein said silver halide emulsion layer or other photographic layers contain at least one development inhibitor precursor represented by formula (I) ##STR1## wherein A represents a phenyl group or a 5- or 6-membered nitrogen-containing heterocyclic ring group; L represents a chemical bond or divalent linking group; p and q each represents an integer of 1 or 2; and n represents 0 or 1.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: November 24, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Okamura, Hiroshi Kawamoto, Yoshio Sakakibara
  • Patent number: 4678740
    Abstract: A photographic matte for use in traveling matte photography is formed by recording a separation of a first screen-color separation of an image on a first film layer and recording a separation of a different second color on a second layer. Preferably, the second color is complementary to the screen color. One layer is developed to form a positive image and the other to form a negative image, these images reinforcing each other. One image is formed by black dye, using a coupler and a color developer and the other is formed by a black dye destruct technique in which the developed portion of the silver halide emulsion is removed. According to another aspect of the invention, a matte of increased density can be formed without commensurate image growth by combining a black dye image with a silver image.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: July 7, 1987
    Inventor: James N. Catania
  • Patent number: 4661437
    Abstract: A photographic recording material which contains at least one dye of the formula ##STR1## wherein D is the group of atoms necessary to complete a 5-membered ring that contains at least one nitrogen atom, A is hydrogen, alkyl, alkoxy, phenyl, alkylthio, cyano, nitro or halogen, n is 0 to 3, R.sub.1 is hydrogen, alkyl, hydroxyl, acylamino, R.sub.6 is hydrogen or unsubstituted or substituted amino, and R.sub.4 is hydrogen or alkoxy. The material is distinguished by good color reproduction, brilliant colors and excellent lightfastness.
    Type: Grant
    Filed: July 19, 1985
    Date of Patent: April 28, 1987
    Assignee: Ciba-Geigy AG
    Inventor: Paul Tschopp
  • Patent number: 4629683
    Abstract: A method of processing a photographic material which contains a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent capable of releasing a photographically useful agent by ring cleavage of a 4- to 7-membered ring containing at least one carbonyl group in the presence of a hydroxylamine, whereby both high stability of the photographic material upon storage and timely release of the photographically useful agent upon processing are achieved.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: December 16, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Isamu Itoh, Mitsunori Ono, Keiji Mihayashi, Seiji Ichijima, Hidetoshi Kobayashi
  • Patent number: 4609609
    Abstract: Compounds of the formula(B--L).sub.m A--L'--B').sub.n (1),in which A is the radical of a bisazo or trisazo dye, L and L' are organic radicals and B and B' are cyclic organic radicals and at least one of the radicals B and B' has spectral absorption in the UV region and one of the radicals B and B' is different from 2,4-dihydroxyphenyl, m is 1 or 2 and n is 0, 1 or 2.The compounds are suitable for use as image dyes in photographic silver dye bleach materials.
    Type: Grant
    Filed: July 19, 1985
    Date of Patent: September 2, 1986
    Assignee: Ciba Geigy AG
    Inventors: Thomas-Markus Rohr, Jakob Kuhn
  • Patent number: 4594426
    Abstract: Benzoxazole derivatives represented by general formula (I) which are intermediates for synthesis of o-sulfonamidophenol derivatives useful as dye releasing redox compounds in a color diffusion transfer color image forming process: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same as or different from each other, each represents an alkyl group or an aryl group or they may combine and form a ring; R.sup.3 represents a hydrogen atom, an alkyl group or an aryl group; R.sup.4 represents an alkyl group or an aryl group; R.sup.5 represents an alkyl group, an alkoxy group, an alkylthio group, an arylthio group, a halogen atom or an acylamino group, or --CR.sup.1 R.sup.2 R.sup.3 and R.sup.5 may combine and form the nucleus ##STR2## which is condensed at the 6- and the 7-positions of the benzoxazole nucleus; and n is 0, 1 or 2.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: June 10, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinsaku Fujita, Koichi Koyama, Yoshio Inagaki
  • Patent number: 4576885
    Abstract: A photographic silver dye bleach material which contains a compound of the formula ##STR1## in which R is a substituted alkyl, R.sub.1 is substituted or unsubstituted alkyl, p is 1 or 2, q is 0 or 1, p+q having to be 1 or 2, and n is 1 to 20, or a salt of this compound.The benzoquinones used deactivate bleach catalysts which diffuse beyond the silver image area produced by development of the exposed material. The silver dye bleach material containing these compounds is therefore distinguished by high contrast, high sharpness and good color reproduction.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: March 18, 1986
    Assignee: Ciba-Geigy AG
    Inventors: Mario Fryberg, Heinrich Schaller, Rolf Steiger, Heinz Peter
  • Patent number: 4565775
    Abstract: In a process for the production of photographic images by the silver dye bleach process, a photograph material is used which, on a base, comprises at least one silver halide-free gelatin layer, which contains a diffusion-resistant bleachable image dye, the gelatin/dye ratio being at most 10:1, and a silver halide emulsion layer which is arranged directly on top of the former layer on the side facing the light source and is free of image dye, and the exposed material is processed in a dye and silver bleach bath which contains a combination of oxidizing agents of the formula (1a) with bleach catalysts of the formulae (2a) and (3), or of the oxidizing agent of the formula (1b) with bleach catalysts of the formula (2b).
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: January 21, 1986
    Assignee: Ciba-Geigy AG
    Inventor: Eddy Forte
  • Patent number: 4562138
    Abstract: This invention relates to nitrogen containing heterocyclic compounds represented by the general formula ##STR1## wherein Z is non-metallic atoms necessary to form a tetrazole, a benzotriazole or a benzothiazole, either substituted or unsubstituted, n is either 1 or 2 and R is alkyl or phenyl. The above mentioned compounds can be suitably used in a photographic material as a development inhibitor precursor.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: December 31, 1985
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Morito Uemura, Kaoru Onodera
  • Patent number: 4546069
    Abstract: The processing time of exposed photographic silver dye bleach materials is shortened by using a bleach preparation which contains a strong acid, a water-soluble iodide, a water-soluble organic nitro compound, an anti-oxidizing agent, a bleach catalyst, an organic photographic developing agent and/or a benzotriazole derivate.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: October 8, 1985
    Assignee: Ciba-Geigy AG
    Inventors: Arnost Libicky, Meinrad Schar
  • Patent number: 4535051
    Abstract: Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one ##STR1## group, wherein R is hydrogen, alkyl, provided that the .alpha.- carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R.sub.1 -R.sub.6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a ##STR2## group, which may be protonated under the reaction conditions, followed by cleavage of said ##STR3## which cleavage is anchimerically assisted or accelerated by said ##STR4## to provide after protonation, an ##STR5## group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: August 13, 1985
    Assignee: Polaroid Corporation
    Inventors: Myron S. Simon, David P. Waller