Developing Inhibitor Or Processing Ingredient Containing Patents (Class 430/505)
  • Patent number: 4469785
    Abstract: There is disclosed a light-sensitive silver halide color photographic material having a silver halide emulsion layer containing at least one layer of a negative working silver halide on a support, comprising the negative working silver halide comprises at least 80 mole % of silver chloride, and being color sensitized with at least one kind of sensitizing dyes having the local maximum value of spectral sensitivity in the wavelength region from 445 nm to 490 nm and at least one kind of sensitizing dyes having the local maximum value of spectral sensitivity in the wavelength region from 420 nm to less than 445 nm.The photographic material according to this invention exhibits excellent color reproducibility and quick process suitability.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: September 4, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shigeo Tanaka, Kaoru Onodera, Noboru Fujimori
  • Patent number: 4469773
    Abstract: A coupler containing in the coupling position a carbamoyloxy group ##STR1## upon oxidative coupling, releases a carbamic acid fragment that, in turn, is capable of thermally releasing ammonia or an amine. Such a carbamoyloxy substituted coupler and carbamic acid fragment are useful in imaging such as in photothermography and thermography. Ammonia or an amine released from the carbamic acid fragment enables imaging in imaging materials that are responsive to ammonia or an amine. The carbamoyloxy substituted coupler also generally is a dye-forming coupler that reacts with the oxidized form of a color developing agent to form a dye. An image is produced in an exposed photothermographic material comprising the carbamoyloxy substituted coupler by thermal development. An image is produced in a thermographic material comprising the carbamoyloxy substituted coupler and a color developing agent by imagewise heating the thermographic material.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: September 4, 1984
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Csaba A. Kovacs, Delwyn E. Machiele
  • Patent number: 4464463
    Abstract: A silver halide color photographic light-sensitive material comprises a support having thereon a light-sensitive silver halide emulsion layer and a light-insensitive layer is disclosed. The material contains within the light-sensitive layer or the light-insensitive layer a compound capable of reacting with and fixing formaldehyde gas, said compound being represented by the general formula (I) or (II): ##STR1## The compound capable of reacting with and fixing formaldehyde gas is loaded into an ultraviolet ray absorbing polymer latex comprised of a polymer having a repeating unit derived from a monomer represented by the general formula (III): ##STR2## The substituents within the above formulae are defined within the specification.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: August 7, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Hidetoshi Kobayashi
  • Patent number: 4464462
    Abstract: A silver halide photographic light-sensitive material having improved antistatic properties is disclosed. The material is comprised of a support having thereon a light-senstive silver halide emulsion layer and a light-insensitive layer. The material includes (A) a flourine containing cationic surface active agent and (B) an ultraviolet ray absorbing polymer latex which comprises a polymer or a copolymer having a repeating unit derived from a monomer represented by the following general formula (I): ##STR1## within the formula (I) the Q is an ultraviolet ray absorbing group represented by the following general formula (II) or (III): ##STR2## the substituents within the formulae shown are defined within the specification. The ultraviolet ray absorbing polymer latex is present in the material in an amount in the range of 10 to 2,000 mg/m.sup.2 of the material.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: August 7, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naohiko Sugimoto, Tetsuro Kojima, Yasuo Mukunoki
  • Patent number: 4463086
    Abstract: There are disclosed a light-sensitive silver halide color photographic material having a light-sensitive silver halide emulsion layer containing at least one kind of cyan dye forming couplers represented by the formula [I] or the formula [II] as defined in the specification provided on a reflective support, and a light-sensitive silver halide color photographic material further having a green-sensitive silver halide emulsion layer containing at least one kind of magenta couplers represented by the formula [III] as defined in the specification.The light-sensitive silver halide color photographic materials according to this invention have excellent color forming characteristics and form very fast dyes to heat, light and humidity.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: July 31, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Takashi Sasaki, Yutaka Kaneko, Fumio Ishii, Yasuo Tsuda, Kazuhiko Kimura, Katsunori Kato
  • Patent number: 4461824
    Abstract: Polymers comprising recurring units having cyclic .beta.-elimination moieties capable of undergoing .beta.-elimination in an alkaline environment and are disclosed for use in diffusion control layers in diffusion transfer photographic products.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: July 24, 1984
    Assignee: Polaroid Corporation
    Inventor: Avinash C. Mehta
  • Patent number: 4461826
    Abstract: There is disclosed a silver halide light-sensitive color photographic material which comprises a support and coated thereon a light-sensitive layer containing a compound which, upon reaction with an oxidized color developing agent, is capable of releasing a diffusible development inhibitor and a negative type light-sensitive silver halide emulsion containing light-sensitive silver halide crystals essentially consisting of mono-dispersed silver halide crystals of which size distribution satisfies the following relation:S/r.ltoreq.0.15whereinS=.sqroot..SIGMA.(r-r.sub.i).sup.2 n.sub.i.sup.2 /.SIGMA.n.sub.i andr=.SIGMA.n.sub.i r.sub.i /.SIGMA.n.sub.i in which r.sub.i represents the crystal size of individual silver halide crystals and n.sub.i represents the number of crystals.The light-sensitive color photographic material of the present invention provides an image of remarkably improved sharpness.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: July 24, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Kiyoshi Yamashita, Toshifumi Iijima
  • Patent number: 4458001
    Abstract: Polymerizable monomeric carbamates are disclosed. Polymers comprising recurring units from such carbamates undergo .beta.-elimination in an alkaline environment and are useful in diffusion control layers in diffusion transfer photographic products.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: July 3, 1984
    Assignee: Polaroid Corporation
    Inventor: Lloyd D. Taylor
  • Patent number: 4456682
    Abstract: A silver halide color photographic material is disclosed. The material has improved developing characteristics which are obtained by containing both a substantially light-insensitive silver halide and at least one specific 3-pyrazolidone compound. The substantially light-insensitive silver halide includes a halogen composition consisting of 0 to 100 percent of bromide, 0 to 2 percent of iodine and the residual percent of chlorine, a mean grain size of 0.01 to 0.3.mu., and a coverage of 5 to 500 mg/m.sup.2. The 3-pyrazolidone compound has the following general formula (I): ##STR1## wherein X represents a hydrogen atom or an acetyl group; R represents an aryl group; and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom, an alkyl group or an aryl group, and they may be the same as or different from one another. The material can be developed at an increased speed and is not accompanied by undesirable photographic effects such as fogging.
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: June 26, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Akio Mitsui, Masakazu Morigaki, Takashi Nakamura
  • Patent number: 4456681
    Abstract: A color photographic material comprising on a support a first silver halide emulsion layer containing a yellow coupler, a second silver halide emulsion layer containing a magenta coupler, a third silver halide emulsion layer containing a cyan coupler, said third emulsion layer being positioned farthest from the support, a first non-light-sensitive layer formed on one side of said third emulsion layer opposite to the support, and a second non-light-sensitive layer formed on the other side of said third emulsion layer, at least said first non-light sensitive layer containing a UV absorber.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: June 26, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Takashi Kadowaki, Kaoru Onodera
  • Patent number: 4455367
    Abstract: A silver halide color photographic light-sensitive material containing particles of a coupler solution, comprising a cyan dye forming coupler represented by the following general formula (I) ##STR1## wherein A represents a cyan coupler residue, but the --NHCO-- group does not bond to A in the active position of A; R.sup.1 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; R.sup.2 represents a hydrogen atom or a substituted or unsubstituted alkyl group; R.sup.3 represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group; and n represents an integer of 1 to 3, and when n is 2 or more R.sup.3 may be the same or different, and a coupler solvent having a dielectric constant of 2.5 to 5. The silver halide color photographic light-sensitive material provides a color image having good fastness to heat and light as well as excellent color reproducibility.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: June 19, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Seoka, Kozo Aoki
  • Patent number: 4455366
    Abstract: A silver halide color, photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing a cyan color image forming polymer coupler latex which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent and which is a polymer or copolymer having a repeating unit derived from a monomer represented by the following general formula (I): ##STR1## wherein R.sub.1 represents a hydroden atom, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; R.sub.2 represents a hydrogen atom or an unsubstituted or substituted alkyl group having from 1 to 4 carbon atoms; A.sub.1 represents an unsubstituted or substituted alkylene group which may be a straight chain or a branched chain; A.sub.2 represents an unsubstituted or substituted alkylene group which may be a straight chain or a branched chain, an unsubstituted or substituted aralkylene group or an unsubstituted or substituted phenylene group; B.
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: June 19, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsumoru Hirano, Makoto Umemoto, Morio Yagihara
  • Patent number: 4454225
    Abstract: A color photographic light-sensitive material comprising a support having thereon a green-sensitive silver halide emulsion layer containing a magenta dye forming coupler represented by the following general formula (I) ##STR1## wherein R.sup.4 represents a halogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted alkoxy group; R.sup.5 represents a hydrogen atom, a halogen atom, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group or a substituted or unsubstituted acylamino group; R.sup.6 represents a hydrogen atom, a halogen atom or a mono-valent organic residue; X represents a hydrogen atom or a group capable of being released upon coupling and exhibiting a two-equivalent property; and n represents an integer from 1 to 5 and when n represents 2 or more, R.sup.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: June 12, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Sakai, Yoshio Seoka, Kozo Aoki
  • Patent number: 4451557
    Abstract: Photographic silver halide emulsions show increased speed and reduced latent image fading when a compound of the following structure is incorporated: ##STR1## wherein: X is --O--, --S--, --Se--, or ##STR2## Y.sup.1 and Y.sup.2 individually represent hydrogen or an aromatic nucleus or together represent the atoms completing a fused aromatic nucleus;Z is ##STR3## R is hydrogen or lower alkyl of from 1 to 5 carbon atoms; and R.sup.1 is hydrogen or methyl.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: May 29, 1984
    Assignee: Eastman Kodak Company
    Inventors: Roger Lok, John P. Freeman, William N. Baum
  • Patent number: 4450228
    Abstract: Disclosed is a light-silver silver halide color photographic material, having a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion and a red sensitive silver halide emulsion on a support; which comprises said red sensitive silver halide emulsion containing at least one kind of the compounds represented by the formula [I] shown below, and further the content of the silver halide contained in all of the aforesaid light-sensitive silver halide emulsion layers being 7.5 g/m.sup.2 or more as calculated on silver, and the content of the silver halide contained in said red sensitive silver halide emulsion being 3.5 g/m.sup.2 or more as calculated on silver: ##STR1## wherein, X, R.sub.1 and R.sub.2 as defined in the specification.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: May 22, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Satoru Shimba, Kenji Ito, Yasuo Tsuda, Hiroshi Sugita
  • Patent number: 4448878
    Abstract: A silver halide photographic light-sensitive material is disclosed. The material contains at least one member of the compounds represented by the general formula: ##STR1## (wherein the symbols are the same as described in the appended claims). In this silver halide photographic light-sensitive material, variations in photographic performance are prevented during the storage thereof and, further, the occurrence of fog is prevented without causing a reduction in sensitivity.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: May 15, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyohiko Yamamuro, Shigeo Hirano, Yasuo Iwasa
  • Patent number: 4447523
    Abstract: Useful scavengers for oxidized developing agents in photographic elements are 2,4-disulfonamidophenols, or alkali labile precursors of such phenols.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: May 8, 1984
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Ross, Wilbur S. Gaugh
  • Patent number: 4440848
    Abstract: Photographic assemblages, elements, receiving elements and cover sheets are described employing a novel timing layer comprising the following recurring units: ##STR1## wherein R.sup.1 is a straight or branched chain alkyl group of from 1 to about 10 carbon atoms or aralkyl group of from about 7 to about 10 carbon atoms;R.sup.2 is a substituted or unsubstituted aryl group of from 6 to about 12 carbon atoms;R.sup.3 is a straight or branched aliphatic group having from 1 to about 20 carbon atoms or an aromatic group having from about 6 to about 20 carbon atoms, the group being substituted with at least one free carboxylic acid group, free sulfonic acid group, free phosphoric acid group or salt thereof;x is from about 1 to about 30 weight percent; andy+z is from about 99 to about 70 weight percent, the ratio of y:z ranging from about 15:85 to about 70:30.The timing layer has a high activation energy and provides improved processing temperature latitude.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: April 3, 1984
    Assignee: Eastman Kodak Company
    Inventors: David B. Bailey, Edward P. Abel
  • Patent number: 4438193
    Abstract: There is disclosed a novel silver halide photosensitive color photographic material comprising a coupler which consists of a coupling component (A) which is capable of causing a coupling reaction with an oxidized color developing agent and a substituent component bonded at the coupling position of said coupling component (A), which substituent component is capable of being split off on coupling reaction, the improvement characterized in that said substituent comprises a coupling component (B) which can undergo coupling reaction with an oxidized color developing agent when released from said coupling component (A) and a photographically useful component which is capable of being released on coupling reaction of said coupling component (B).The color photographic material according to the present invention provides graininess, sharpness and color reproducibility which is sufficiently competent to the requirement of further miniturization of film size by use of a coupler having novel functions.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: March 20, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Morito Uemura, Kenichi Kishi, Satoshi Nakagawa, Shuji Kida
  • Patent number: 4438194
    Abstract: A silver halide color photographic photosensitive material comprising a base having thereon a non-photosensitive intermediate layer sandwiched between a high-sensitive silver halide emulsion layer and a low-sensitive silver halide emulsion layer both having a nondiffusion coupler that forms substantially the same color and having photosensitivity in substantially the same spectral region is disclosed. Said non-photosensitive intermediate layer has incorporated therein with a nondiffusion coupler that forms substantially the same color as that formed by the nondiffusion coupler contained in said high-sensitive emulsion layer and whose coupling speed is not greater than that of the nondiffusion coupler contained in said high-sensitive silver halide emulsion layer.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: March 20, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventor: Fumio Hamada
  • Patent number: 4436808
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing a magenta color image forming polymer coupler latex which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent and which is a homopolymer or copolymer having a repeating unit derived from a monomer coupler represented by the following general formula (I): ##STR1## wherein R.sub.1 represents hydrogen, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; R.sub.2 and R.sub.3, which may be the same or different, each represents an unsubstituted or substituted alkylene group which may be a straight chain or a branched chain, an unsubstituted or substituted arylene group or an unsubstituted or substituted aralkylene group; X represents --CONH-- or --COO--; Y represents --O--, --S--, --SO--, --SO.sub.2 --, --CONH-- or --COO--; Ar represents an unsubstituted or substituted phenyl group; R.sub.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: March 13, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Morio Yagihara, Tsumoru Hirano, Keiji Mihayashi
  • Patent number: 4435503
    Abstract: A silver halide color photographic light-sensitive material containing a 4-equivalent magenta color image forming polymer coupler latex and at least one compound capable of reacting with and fixing formaldehyde gas. The silver halide color photographic light-sensitive material has good film strength and a reduced layer thickness. It is possible to avoid the decrease in color density and the formation of fog normally present when the silver halide color photographic light-sensitive material is stored for a long period of time in contact with formaldehyde gas.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: March 6, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Tadashi Ogawa, Morio Yagihara
  • Patent number: 4430423
    Abstract: A color photographic light-sensitive material comprising a cupport having coated thereon at least one silver halide emulsion layer. The color photographic light-sensitive material contains a cyan dye forming coupler represented by the following general formula (I): ##STR1## wherein Z represents ##STR2## R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; Y represents ##STR3## --O-- or --S--; R.sup.1 and R.sup.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: February 7, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Aoki, Michio Ono
  • Patent number: 4423140
    Abstract: Photographic silver halide emulsions are protected against latent image fading by aromatic latent image stabilizing compounds having the structure: ##STR1## wherein: R.sup.1 is hydrogen, alkyl, or aryl;R.sup.2 and R.sup.3 are each individually hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, or aminocarbonyl;X is a middle chalcogen;Z represents the atoms completing an aromatic nucleus;n is an integer of 1 or 2; andM.sup..sym.n is a cation of valence n chosen from the group consisting of an onium ion, an ion from Group IA or IIA, and a metal ion from Group IIB, VIIB, IVA, or VA.
    Type: Grant
    Filed: June 25, 1298
    Date of Patent: December 27, 1983
    Assignee: Eastman Kodak Company
    Inventor: Arthur H. Herz
  • Patent number: 4423142
    Abstract: Photographic material and process suitable for producing by diffusion transfer a color image and comprising on a support at least two differently spectrally sensitive negative working silver halide emulsion layers (FIG. 3, layers 12, 14 and 16) and having operatively associated with each of said emulsion layers a different non-diffusing dye providing compound that is initially immobile in an alkali-permeable colloid medium and wherefrom by reduction in alkaline medium a dye or dye precursor can be split off in diffusible state, wherein at least one of said negative working silver halide emulsion layers is associated in water-permeable relationship with a visible light-sensitive direct-positive emulsion layer (FIG. 3, layers 13 and 15) whereby interimage effects can be obtained.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: December 27, 1983
    Assignee: AGFA-Gevaert, N.V.
    Inventor: Wilhelmus Janssens
  • Patent number: 4416978
    Abstract: A silver halide color photographic light-sensitive material containing a magenta color image forming polymer coupler latex and at least one compound represented by the following general formula (I) ##STR1## wherein R represents an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a R.sub.4 CO-- group, a R.sub.5 SO.sub.2 -- group or a R.sub.6 NHCO-- group; R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkoxy group or an alkenoxy group; R.sub.3 represents a hydrogen atom, an alkyl group, an alkenyl group or an aryl group; and R.sub.4, R.sub.5 and R.sub.6 each represents an alkyl group, an alkenyl group, an aryl group or a heterocyclic group.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: November 22, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Morio Yagihara, Takashi Ozawa
  • Patent number: 4416971
    Abstract: In one embodiment, the present invention is concerned with novel xanthene compounds of the formula ##STR1## wherein each R.sup.1 is the same and is selected from ##STR2## R.sup.2 is alkyl, R.sup.3 is an electron-withdrawing group positioned ortho, meta or para to said N atom, R.sup.4 is hydrogen, alkyl or an electron-withdrawing group positioned ortho, meta or para to said N atom; R.sup.5 is alkyl; X is hydrogen, an electron-withdrawing group or an electron-donating group; and A is an anion. In another embodiment, the present invention is concerned with photographic products and processes employing these xanthene compounds, e.g., as photographic light-screening dyes.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: November 22, 1983
    Assignee: Polaroid Corporation
    Inventors: Alan L. Borror, Louis Cincotta, John W. Lee, Jr.
  • Patent number: 4414308
    Abstract: In a silver halide color photographic photosensitive material, having a red, a green and a blue light-sensitive emulsion layer on a support, each emulsion containing a nondiffusible image forming coupler, improvement is attained by providing a layer structure in which at least one of the red, the green and the blue light-sensitive emulsion layer is separated into a high sensitivity silver halide emulsion layer and a low sensitivity silver halide emulsion layer, both layers having photosensitive regions in substantially the same spectral region, by an intermediate layer and incorporating at least one kind of DIR compounds represented by formula (I) defined in the specification in at least one layer of the high sensitivity silver halide emulsion layer, the low sensitivity silver halide emulsion and the intermediate layer.
    Type: Grant
    Filed: March 16, 1982
    Date of Patent: November 8, 1983
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventor: Fumio Hamada
  • Patent number: 4413054
    Abstract: A silver halide color photosensitive material is described, containing a 4-arylthio-5-pyrazolone coupler and comprising a layer containing an emulsion of fine silver halide particles.
    Type: Grant
    Filed: March 30, 1982
    Date of Patent: November 1, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akio Mitsui, Kotaro Nakamura
  • Patent number: 4411987
    Abstract: A silver halide color photographic light-sensitive material containing an unsubstituted or substituted glycoluril as an aldehyde gas scavenger. The silver halide color photographic light-sensitive material of the present invention can avoid the decrease in color density and the formation of fog normally present when the silver halide color photographic light-sensitive material is stored for a long period of time in contact with formaldehyde gas. In addition, the silver halide color photographic light-sensitive material of the present invention has a reduced layer thickness and good film strength.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: October 25, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidetoshi Kobayashi, Toshiyuki Watanabe, Keiichi Adachi, Tadashi Ogawa
  • Patent number: 4410618
    Abstract: .alpha.-Ketoimidomethyl blocked photographic reagents are useful in photographic elements, film units and processes. The blocked photographic reagents have the structure: ##STR1## wherein J represents ##STR2## X represents the atoms to complete a 5- or 6-membered ring or ring system; R represents alkyl of 1 to 30 carbon atoms or aryl of 6 to 30 carbon atoms; andPR represents the residue of an organic photographic reagent containing a heteroatom through which it is joined to the blocking group.
    Type: Grant
    Filed: June 11, 1982
    Date of Patent: October 18, 1983
    Assignee: Eastman Kodak Company
    Inventors: James P. Vanmeter, Chin H. Chen
  • Patent number: 4409321
    Abstract: A method for reproducing a color image. A dye image is formed on a photographic light-sensitive material by imagewisely exposing the material and processing to form a dye image. Through the imaged photographic light-sensitive material, an exposure is made on a photographic printing light-sensitive material which is processed in an alkaline activator solution to form a dye image thereon. The photographic light-sensitive material contains a transparent support provided thereon with red-sensitive, green-sensitive, and blue-sensitive silver halide emulsion layers. The layers each contain one of three different nondiffusible couplers capable of forming, by coupling, compounds having spectral absorption maximum wavelength in the wavelength region longer than 340 nm. The spectral absorption maximum wavelength of the compounds differ by at least 30 nm.
    Type: Grant
    Filed: January 22, 1982
    Date of Patent: October 11, 1983
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Kaoru Onodera, Toshifumi Iijima, Wataru Fujimastu
  • Patent number: 4407936
    Abstract: A color photographic light-sensitive material is described, said material comprising a support having coated thereon at least one silver halide emulsion layer containing a 5-pyrazolone magenta coupler represented by formula (I) ##EQU1## wherein R represents an acylamino group, an anilino group or a ureido group; Ar.sup.1 represents a phenyl group which may be substituted with one or more halogen groups, alkyl groups, or alkoxy groups; Ar.sup.2 represents a phenyl group or a naphthyl group, each of which may be substituted with one or more halogen groups, hydroxy groups, carboxy groups, cyano groups, alkyl groups, acylamino groups, carbamoyl groups, ureido groups, sulfonamido groups, diacylamino groups, sulfamoyl groups, alkoxycarbonyl groups, phenyl groups, arysulfonyl groups or alkoxy groups; X represents oxygen, sulfur, or a methylene group; and Y represents a straight chain or branched chain alkylene group having from 1 to 6 carbon atoms, or an alkylene group containing an ether bond.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: October 4, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Ichijima, Toshiyuki Watanabe, Nobuo Furutachi, Nobuo Seto
  • Patent number: 4404273
    Abstract: A process for the production of photographic color images by the silver dye bleach process, by exposure, silver development, dye formation, dye bleach, silver bleach and fixing of a photographic material which, in a light-sensitive silver halide emulsion layer or in an adjacent layer, contains, dispersed in oil, an oil-soluble triazene of the formula ##STR1## and an oil-soluble coupling component of the formula ##STR2## in which Ar.sub.1 is aryl or an aromatic heterocyclic radical, R.sub.1 is hydrogen, alkyl, aryl, hydroxyl, --(CH.sub.2 CH.sub.2 O).sub.r --L.sub.1 or --OL.sub.1, in which L.sub.1 is alkyl and r is 1, 2 or 3, or R.sub.1 is ##STR3## in which V is hydrogen or alkyl, and R.sub.2 is alkyl, aryl or --(CH.sub.2 CH.sub.2 O).sub.r --L.sub.1, or R.sub.1 and R.sub.2, conjointly with the nitrogen atom to which they are bonded, form a ring, A.sub.1 and A.sub.2 independently of one another are an amine of the formula --NT.sub.1 T.sub.2, in which T.sub.1 and T.sub.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: September 13, 1983
    Assignee: Ciba-Geigy AG
    Inventors: Eddy Forte, Mario Fryberg, Gerald Jan
  • Patent number: 4401752
    Abstract: Couplers of good reactivity contain an aryloxy coupling-off group having in an ortho position a polarizable carbonyl, sulfonyl or phosphinyl substituent group which is free of photographic dye groups and photographic reagent groups.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: August 30, 1983
    Assignee: Eastman Kodak Company
    Inventor: Philip T. S. Lau
  • Patent number: 4395477
    Abstract: Photographic assemblages, elements, receiving elements and cover sheets are described employing a single neutralizing-timing layer consisting essentially of a carboxy-ester-lactone polymer having the following recurring units: ##STR1## wherein R is alkyl having from 1 to about 12 carbon atoms or aralkyl having from 7 to about 12 carbon atoms;R.sup.1 and R.sup.2 are each independently hydrogen or methyl;x is about 1 to about 15 mole %; andy is about 85 to about 99 mole %.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: July 26, 1983
    Assignee: Eastman Kodak Company
    Inventor: Edward P. Abel
  • Patent number: 4391896
    Abstract: Curve shape control, especially for lower scale contrast, of a photographic element is achieved by employing with the silver halide emulsion layer two nondiffusible redox dye-releasing compounds of different relative reactivities, the reactivity of the compound which is more reactive being at least 1.5 times the reactivity of the compound which is less reactive. Preferred compounds are ballasted sulfonamido compounds, each of which has a color-providing moiety attached thereto through a sulfonamido group which is alkali-cleavable upon oxidation. Preferred more reactive sulfonamido compounds have a N,N-disubstituted carbamoyl ballast group. The color-providing moieties can be (1) transferred imagewise to an image-receiving layer to provide a useful image, or (2) can be merely diffused out of the element to provide a retained image therein which can be treated to form a color transparency or a motion picture film.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: July 5, 1983
    Assignee: Eastman Kodak Company
    Inventors: Thomas O. Maier, Jack L. Richards
  • Patent number: 4391884
    Abstract: A process for the production of a photographic color image by the silver dye bleach process, using a photographic material which comprises, on a base, at least one light-sensitive silver halide emulsion layer, which can contain a diffusion-resistant bleachable image dye, and immediately above this layer, on the side facing the light source, a silver halide-free layer containing a diffusion-resistant, bleachable image dye.The process gives very sharp photographic color images.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: July 5, 1983
    Assignee: Ciba-Geigy AG
    Inventors: Armin Meyer, Carlo Boragine
  • Patent number: 4391895
    Abstract: A diffusion control layer for a diffusion transfer photographic film unit comprising a urethane polymer including recurring backbone units capable of undergoing .beta.-elimination degradation in an alkaline environment.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: July 5, 1983
    Assignee: Polaroid Corporation
    Inventors: William C. Schwarzel, Lloyd D. Taylor
  • Patent number: 4389479
    Abstract: Photographic assemblages, elements, receiving elements and cover sheets are described employing a novel neutralizing layer comprising a cross-linked polymer having recurring units of an N-(alkoxy-methyl)acrylamide, an acrylic acid and an alkyl acrylic ester. The need for a separate cross-linking agent is eliminated.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: June 21, 1983
    Assignee: Eastman Kodak Company
    Inventors: John F. Bishop, Wayne A. Bowman
  • Patent number: 4388401
    Abstract: A multilayer color reversal light-sensitive material is described, which can provide dye images having improved sharpness and graininess without a drop in color reproducibility, by employing a specific arrangement and construction of emulsion layers in its multi-layer structure, viz., a material comprising a support, a yellow filter layer, a group of green-sensitive emulsion layers, and a group of red-sensitive emulsion layers, wherein said emulsion layer groups are positioned nearer to the support than the yellow filter layer, each of the emulsion layer groups comprises at least two adjacent layers including a high-sensitivity silver halide emulsion layer containing silver halide grains having an average size of from 0.6.mu. to 2.0.mu. and a low-sensitivity silver halide emulsion layer containing silver halide grains having an average grain size of from 0.1.mu. to 0.5.mu.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: June 14, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunori Hasebe, Yoshisato Minagawa
  • Patent number: 4387159
    Abstract: A light-sensitive, color photographic silver halide multilayer material contains for the improvement of definition, grain and color rendition DIR-couplers which are substituted in coupling position by mercapto-azole-, mercaptobenz-azole- or mercapto-azine moieties, which themselves carry hydrophilic substituents. The DIR-couplers according to the invention may be used together with other couplers and additives or as sole color forming element and are noteworthy for their high color yields, inter- and intra-image effects. They may be added as well in hydrophobic state (in dispersed form) as in hydrophilic state (as alkaline solutions) and they may be used in single layers or as associated layers with a maximum three layers of a color forming unit and the layers may be arranged in any desired order within the whole combination of layers.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: June 7, 1983
    Assignee: VEB Filmfabrik Wolfen
    Inventors: Horst Engelmann, Rainer Redmann, Monika Bethke, Christa Melz, Gerd West, Jurgen Mistol, Udo Sydow
  • Patent number: 4386144
    Abstract: A process for producing a multicolor optical filter which comprises the steps of (1) exposing a light-sensitive material and (2) developing the exposed light-sensitive material, the process employing a specific light-sensitive material including a silver halide emulsion layer (L1) and a silver halide emulsion layer (L2), each layer containing therein a specific compound or dye. Such a multicolor optical filter is useful in color pick-up tubes and color solid state pick-up devices.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: May 31, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiaki Aono
  • Patent number: 4383027
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing at least one coupler represented by the following general formula (I): ##STR1## The substituents are disclosed in the specification. The silver halide color photographic light-sensitive material in which a specific class of 1-phenyl-3-anilono-4-phyenylthio-5-pyrazolone type two-equivalent magenta color image forming couplers and a specific class of 1-phenyl-3-pyrazolidone derivatives are used in association with each other can provide a magenta color image of high sensitivity without increasing the fog level. A method for developing the material is also disclosed.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: May 10, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Masakazu Morigaki, Takashi Nakamura, Nobuo Furutate
  • Patent number: 4378426
    Abstract: Photographic silver halide emulsions show increased speed and reduced latent image fading when a compound of the following structure is incorporated: ##STR1## wherein: X is -O-, -S-, -Se-, or ##STR2## Y represents the atoms completing a fused aromatic nucleus; Z is ##STR3## R is hydrogen or lower alkyl of from 1 to 5 carbon atoms.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: March 29, 1983
    Assignee: Eastman Kodak Company
    Inventors: Roger Lok, John P. Freeman, William N. Baum
  • Patent number: 4374914
    Abstract: Negative color images are produced by the silver dye bleach process, by exposure of a photographic silver dye bleach material, silver developing, dye bleaching, silver bleaching and fixing, the silver bleaching being optionally carried out simultaneously with the dye bleaching and/or the fixing, in a single treatment bath.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: February 22, 1983
    Assignee: Ciba-Geigy Ltd.
    Inventors: Herbert Mollet, Dieter Wyrsch
  • Patent number: 4374196
    Abstract: Photographic silver halide emulsions are protected against latent image fading by latent image stabilizing compounds having the structure: ##STR1## wherein: R.sup.1 is hydrogen, alkyl, or aryl;R.sup.2 and R.sup.3 are each individually hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, or aminocarbonyl;R.sup.4 and R.sup.5 are each individually hydrogen, alkyl, aryl, cyano, halogen, formyl, carboxy, alkoxycarbonyl, aryloxycarbonyl or aminocarbonyl;n is an integer of 1 or 2; andM.sup..sym.n is a cation of valence n.
    Type: Grant
    Filed: February 20, 1981
    Date of Patent: February 15, 1983
    Assignee: Eastman Kodak Company
    Inventor: Arthur H. Herz
  • Patent number: 4371604
    Abstract: A photographic material for diffusion transfer photography containing a quinonoid compound, which is capable in reduced state and under alkaline conditions of releasing a photographically useful group and corresponds to one of the following general formulae: ##STR1## wherein: each of (Nuox).sup.1 and (Nuox).sup.2 (same or different) represents an oxidized nucleophilic group,Z represents a bivalent atom or bivalent atomic group, which is electro-negative,Q together with the group Z represents a releasable photographically useful group,Y.sup.1 and Y.sup.2 together represent the necessary atoms to close a p-quinonoid ring substituted with (a) directly linked monovalent organic ring or ring system substituent(s) having aromatic character,Y.sup.3 represents the necessary atoms to close a o-quinonoid ring substituted with (a) directly linked monovalent organic ring or ring system substituent(s) having aromatic character, andeach of R.sup.1 and R.sup.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: February 1, 1983
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Christian C. Van de Sande, Wilhelmus Janssens, Wolfgang Lassig, Ernst Meier
  • Patent number: 4370410
    Abstract: A silver halide color material comprising red, green and blue photosensitive silver halide emulsion layers, each of which contains a coupler, and in which said green photosensitive layer is composed of at least two layers and between those of which said red photosensitive layer is arranged, and said green photosensitive layer contains an anti-diffusive yellow coupler.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: January 25, 1983
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshifumi Iijima, Wataru Fujimatsu, Kaoru Onodera
  • Patent number: T103803
    Abstract: Photographic silver halide emulsions show increased speed and reduced latent image fading when a compound of the following structure is incorporated: ##STR1## wherein: X is --O--, --S--, --Se--, or ##STR2## Y represents the atoms completing a fused aromatic nucleus; Z is ##STR3## and R is hydrogen or lower alkyl of from 1 to 5 carbon atoms.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: January 3, 1984
    Inventors: Roger Lok, John P. Freeman, William N. Baum