Substituted At Coupling Position With Other Than Hydrogen Patents (Class 430/553)
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Patent number: 4390618Abstract: A silver halide photographic light-sensitive material is described comprising a layer containing a coupler compound represented by formula (I)A--B (I)wherein A represents a residue of a compound capable of undergoing a coupling reaction with an oxidation product of an aromatic primary amine developing agent, by the removal of one hydrogen atom from the active position of said compound, and B represents a group which is released by the coupling reaction and exhibits a development accelerating function.Type: GrantFiled: March 15, 1982Date of Patent: June 28, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Toshirou Takahashi, Shigeo Hirano, Takeshi Hirosa, Keiichi Adachi
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Patent number: 4387158Abstract: Photographic silver halide material which comprises at least one silver halide emulsion layer coated on a support, there being present in the silver halide emulsion layer(s), or in a layer in operative contact with at least one silver halide emulsion layer, a compound of the formula ##STR1## wherein W is hydrogen, alkyl, --NHCOR.sup.1 or --COR.sup.1, wherein R.sup.1 is alkyl or alkenyl, cycloalkyl, aralkyl, aryl, phenoxymethylamino or halogen; X is a substituent in the coupling position and is a leaving group selected from hydrogen, chlorine, bromine, --SR.sup.11 wherein R.sup.11 is alkyl, aryl or a heterocyclic group, or X is a nitrogen-containing heterocyclic residue attached at a ring nitrogen atom; Y is a group having the formula ##STR2## wherein Q is selected from the residues: (a) --COOR.sup.4 or --CONR.sup.4 R.sup.5 where R.sup.4 is hydrogen, alkyl optionally interrupted by 1 or more oxygen atoms, alkenyl, cycloalkyl, aralkyl or aryl, and R.sup.5 is hydrogen or alkyl or R.sup.4 and R.sup.Type: GrantFiled: June 18, 1982Date of Patent: June 7, 1983Assignee: Ciba-Geigy AGInventor: Stephen R. Postle
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Patent number: 4387159Abstract: 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: GrantFiled: May 8, 1981Date of Patent: June 7, 1983Assignee: VEB Filmfabrik WolfenInventors: Horst Engelmann, Rainer Redmann, Monika Bethke, Christa Melz, Gerd West, Jurgen Mistol, Udo Sydow
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Patent number: 4368257Abstract: A method of forming a cyan dye image by development of an exposed silver halide photographic material with a developer containing a cyan coupler having one of the following formulae: ##STR1## wherein R.sub.1 is a hydrogen atom or alkyl having 1 to 20 carbon atoms; R.sub.2 is alkyl, aryl, or a hetero ring; R.sub.3 is hydrogen or halogen; X is arylene or alkylene; Z is a coupling off group; n is 1 or 2; ##STR2## wherein Cy, Cy' and Cy" are individually a cyclic aliphatic, aromatic or heterocyclic group; R, R' and R" are individually alkyl; A is hydrogen or a monovalent organic group, Y is a divalent organic group, K, l, m, m' m" are individually 0 or 1, provided that when m=0, Cy is a cyclic aliphatic or heterocyclic group.Type: GrantFiled: January 14, 1981Date of Patent: January 11, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Yasushi Usagawa, Wataru Fujimatsu, Osamu Sasaki, Katsumi Matsuura
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Patent number: 4362795Abstract: A process for forming photographic images comprising a silver image and a dye image, comprising development processing an imagewise exposed silver halide photographic light-sensitive material containing a 4-alkoxy-1-naphthol represented by the formula (I) ##STR1## wherein R represents an alkyl group, an alkoxyalkyl group, or a hydroxyalkyl group, and the number of carbon atoms in the substituent represented by R is from 1 to 4.The process of this invention is particularly useful in the field of X-ray photography, in order to provide an image of increased density for a given silver content. A novel silver halide photographic light-sensitive material includes the above 4-alkoxy-1-naphthol in a photographic colloid layer thereof, preferably the silver halide emulsion layer.Type: GrantFiled: August 29, 1980Date of Patent: December 7, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Junkichi Ogawa, Minoru Yamada, Tsutomu Hamaoka
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Patent number: 4362810Abstract: A method of forming a cyan dye image by development of an exposed silver halide photographic material with a developer containing a 2,5-diacylaminophenol cyan coupler containing a substituted alkylsulfonylamino terminal moiety or a substituted alkylaminosulfonyl terminal moiety in the 2- or 5- position.Type: GrantFiled: January 9, 1981Date of Patent: December 7, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Yasushi Usagawa, Wataru Fujimatsu, Osamu Sasaki, Katsumi Matsuura
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Patent number: 4355100Abstract: A color photographic material having a light-sensitive silver halide emulsion layer containing a DIR compound having an amino group and a DIR compound having no amino group.Type: GrantFiled: January 19, 1981Date of Patent: October 19, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Hiroshi Sugita, Shizuo Saito, Ryosuke Sato, Kiyoshi Yamashita
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Patent number: 4345025Abstract: A color photographic silver halide light-sensitive material containing a colorless photographic cyan color-forming coupler having, in a position for coupling with the oxidation product of an aromatic primary amine developing agent, a coupling-off group represented by the following general formula (I):--O--R--SO--R.sub.1 (I)wherein R represents a substituted straight or branched chain alkylene group or a substituted straight or branched chain alkenylene group; R.sub.1 represents a substituted or unsubstituted straight or branched chain alkyl group, a straight or branched chain alkenyl group, a straight or branched chain aralkyl group, a straight or branched chain aralkenyl group, a cycloalkyl group, an aryl group or a heterocyclic group, and R and R.sub.1 may be bonded to each other directly or through a connecting group to form a ring. The 2-equivalent photographic cyan couplers have high coupling speed and excellent dispersibility.Type: GrantFiled: March 11, 1981Date of Patent: August 17, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Yukio Yokota
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Patent number: 4342825Abstract: Cyan-forming phenol type color couplers comprising in the 2-position of the phenol a benzamido group carrying on the benzene nucleus of the benzamido group at least one --Q--Rf group wherein Q is --O--, --S--, or --SO.sub.2 --, and Rf is a short-chain fluorine-containing group derived from hexafluoropropylene or trifluorochloroethylene.These cyan-forming color couplers can be incorporated in (a) red-sensitized silver halide emulsion layer(s) of a photographic multilayer color element or in a non-light-sensitive colloid layer in water-permeable relationship with the red-sensitized emulsion layer(s).Type: GrantFiled: March 25, 1981Date of Patent: August 3, 1982Assignee: AGFA-GEVAERT N.V.Inventors: Raphael K. Van Poucke, Marcel J. Monbaliu, Jan J. Vandewalle
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Patent number: 4341864Abstract: Cyan-forming color couplers according to the formula: ##STR1## wherein Z is hydrogen in the case of 4-equivalent couplers or a substituent that splits off upon color development, thus conferring a 2-equivalent character to the color coupler, and Y is a ballasting group. These cyan-forming color couplers can be incorporated in (a) red-sensitized silver halide emulsion layer(s) of a photographic multilayer color element or in a non-light-sensitive colloid layer in water-permeable relationship with the red-sensitized emulsion layer(s).Type: GrantFiled: March 12, 1981Date of Patent: July 27, 1982Assignee: Agfa-Gevaert, N.V.Inventors: Jan J. Vandewalle, Marcel J. Monbaliu, Raphael K. Van Poucke
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Patent number: 4334011Abstract: Color photographic light sensitive materials are disclosed, comprising a cyan dye forming coupler represented by 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 hydrogen or a substituted or unsubstituted alkyl group, and the various positions of the phenyl group of the formula (I) may be substituted with from 1 to 3 substituents selected from the group consisting of hydrogen, a halogen atom, an alkyl group or an alkoxy group.Type: GrantFiled: December 5, 1980Date of Patent: June 8, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Yoshio Seoka, Yukio Yokota
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Patent number: 4333999Abstract: Novel phenolic cyan dye-forming couplers contain in the 2-position a p-cyanophenylureido group. These couplers are useful in photographic emulsions, elements and processes.Type: GrantFiled: July 10, 1980Date of Patent: June 8, 1982Assignee: Eastman Kodak CompanyInventor: Philip T. S. Lau
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Patent number: 4327173Abstract: A color photographic light-sensitive material is described containing a cyan dye forming coupler represented by formula (I) ##STR1## wherein R.sup.1 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; R.sup.2 and R.sup.3 each represents hydrogen, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an alkoxycarbonyl group, an alkylcarbonyl group, an arylcarbonyl group, an alkylcarbamoyl group, an arylcarbamoyl group wherein said groups may be substituted or unsubstituted, or a nitryl group; and X represents hydrogen or a coupling-off group; also a double bond may be formed between the carbon atom at the 3-position and the carbon atoms at the 4-position.The color photographic light-sensitive material provides color images having excellent fastness to light and heat.Type: GrantFiled: January 23, 1981Date of Patent: April 27, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Yoshio Seoka, Yukio Yokota
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Patent number: 4315069Abstract: Color photographic material is described in which a yellowish image is formed which can be used to print black and white prints. Also present in the layer is a small amount of a more reactive coupler which produces a colored image to which black and white paper is not sensitive. This more reactive coupler reduces the fog in the highlight areas.Most preferably small amounts of other couplers are present which result in a green or brown image which makes it easier for the operator to focus the image.Type: GrantFiled: September 11, 1980Date of Patent: February 9, 1982Assignee: Ciba Geigy AGInventors: John G. V. Scott, Anthony K. Harvey
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Patent number: 4310618Abstract: Novel dye-forming couplers have the structure: ##STR1## wherein: Z represents the atoms to complete, with the attached oxygen atom, the same or different 5-pyrazolone dye-forming coupler moiety, phenol dye-forming coupler moiety or naphthol dye-forming coupler moiety, the * in the ring completed by Z representing the coupling position;R is hydrogen or a coupling-off group;Bl is a blocking group removable, during development, from the coupler moiety completed by Z to which it is directly attached; andn is an integer of 2 to 4.Type: GrantFiled: May 30, 1980Date of Patent: January 12, 1982Assignee: Eastman Kodak CompanyInventors: Jose M. Fernandez, Joseph P. Pepe
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Patent number: 4304844Abstract: A method for forming a cyan dye image by developing an exposed silver halide photographic material with a developer containing a color developing agent in the presence of a cyan coupler, wherein the coupler is a 2,5-diacylaminophenol in which each acylamino group has a substituent containing an oxycarbonyl, sulfonyloxy, oxysulfonyl, arylsulfonamide or arylsulfamoyl group or other organic group containing a sulfone group.Type: GrantFiled: May 1, 1980Date of Patent: December 8, 1981Inventors: Wataru Fujimatsu, Yasushi Usagawa, Osamu Sasaki, Katsumi Matsuura
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Patent number: 4299914Abstract: A method for forming a cyan dye image by development of an exposed silver halide photographic material with a developer containing a cyan coupler of the following formula: ##STR1## in which R represents hydrogen atom or an alkyl group having a carbon number of one to twenty; R.sub.1 represents an alkylsulfonamide or alkylsulfamoyl group; R.sub.2 represents an alkyl, aryl group or a 5 or 6-membered heterocyclic group containing a nitrogen, oxygen or sulfur atom; R.sub.3 represents a hydrogen or halogen atom; X represents an alkylene, metaphenylene or orthophenylene group; Z represents a hydrogen atom or a split-off radical; and n has an integral value of one or two.Type: GrantFiled: May 1, 1980Date of Patent: November 10, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Wataru Fujimatsu, Yasushi Usagawa, Osamu Sasaki, Katsumi Matsuura
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Patent number: 4296200Abstract: A silver halide photographic light-sensitive material containing a colorless photographic cyan color forming coupler having, in a position for coupling with an oxidation product of an aromatic primary amine developing agent, a coupling-off group represented by the formula (I):--O--R--S--R.sub.1 (I)wherein R represents a substituted alkylene group or an unsubstituted or substituted alkenylene group, and said alkylene group or alkenylene group may be straight or branched chain; and R.sub.1 represents a substituted or unsubstituted alkyl group, an alkenyl group, an aralkyl group, an aralkenyl group, a cycloalkyl group or a heterocyclic group and said alkyl group, alkenyl group, aralkyl group and aralkenyl group may be straight or branched chain; and said heterocyclic group being connected with a thio group at the position of a carbon atom of the heterocyclic group.Type: GrantFiled: August 12, 1980Date of Patent: October 20, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Yukio Yokota
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Patent number: 4296199Abstract: A silver halide photographic light-sensitive material is described containing a colorless photographic cyan color-forming coupler having, in a position for coupling with an oxidation product of an aromatic primary amine developing agent, a coupling-off group represented by the formula (I)--O--(R.sub.1 S).sub.x (R.sub.2 S).sub.y R.sub.3 (I)wherein R.sub.1 and R.sub.2 each represents an alkylene group; R.sub.3 represents an alkyl group, a cycloalkyl group, an aryl group, or a heterocyclic group; x represents a positive integer; and y represents 0 or a positive integer.The photographic cyan color-forming coupler exhibits excellent dispersibility and color-forming properties.Type: GrantFiled: June 19, 1980Date of Patent: October 20, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Yukio Yokota
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Patent number: 4294918Abstract: A color photographic silver halide light-sensitive material is described containing a colorless photographic cyan color-forming coupler having, in a position for coupling with the oxidation product of an aromatic primary amine developing agent, as a coupling-off group, at least one alkoxy group substituted with a sulfinyl group represented by the formula (I)-O-R-SO-R.sub.1 (I)wherein R represents a saturated or unsaturated, divalent aliphatic group which may be straight or branched chain and may be substituted; and R.sub.1 represents a substituted or unsubstituted straight or branched chain alkyl group, an alkenyl group, an aralkyl group, an aralkenyl group, a cycloalkyl group, an aryl group or a heterocyclic group; and said heterocyclic group being connected with a sulfinyl group on the position of a carbon atom of the heterocyclic group.Type: GrantFiled: July 14, 1980Date of Patent: October 13, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Yukio Yokota
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Patent number: 4288532Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, said photographic light-sensitive material containing at least one cyan color-forming coupler represented by the following general formula (I): ##STR1## wherein l represents 0, 1 or 2; X represents a group capable of being released upon the coupling reaction and having at least 6 carbon atoms; Y represents RCONH--, RNHCO-- or RNHCONH-- wherein R represents a hydrogen atom, a methyl group, an ethyl group or a methyl group substituted with one or more halogen atoms; n represents 1 or 2 and Y may be the same or different when n is 2; and the phenyl group can be substituted with a halogen atom, an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 3 carbon atoms. The dyes formed from the cyan color-forming couplers have unusually good spectral absorption properties and exceptional fastness to light and heat.Type: GrantFiled: February 13, 1980Date of Patent: September 8, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Seoka, Kozo Aoki, Yukio Yokota, Seiiti Kubodera
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Patent number: 4286054Abstract: 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: GrantFiled: May 29, 1980Date of Patent: August 25, 1981Assignee: VEB Filmfabrik WolfenInventors: Horst Englemann, Rainer Redmann, Monika Bethke, Christa Melz, Gerd West, Jurgen Mistol, Udo Sydow
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Patent number: 4273861Abstract: A multilayer color photographic material with improved color reproduction comprising a support having thereon at least two photosensitive silver halide emulsion layers which provide color images having different colors from each other, the multilayer color photographic material containing at least one interlayer color correction coupler as defined hereinafter.Type: GrantFiled: February 23, 1976Date of Patent: June 16, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi, Atsuaki Arai, Nobuo Furutachi, Harumi Katsuyama
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Patent number: 4268616Abstract: A process for forming photographic images comprising a silver image and a dye image, which comprises development processing an imagewise exposed silver halide photographic light-sensitive material in the presence of a carboxy- and sulfo-free naphthalene compound wherein at least two hydrogen atoms in the naphthalene nucleus are substituted at specific positions thereof as indicated in formula (I) below, and a 3-pyrazolidone compound.Type: GrantFiled: January 18, 1980Date of Patent: May 19, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Junkichi Ogawa, Tsutomu Hamanka
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Patent number: 4264722Abstract: A silver halide photographic light-sensitive material containing a colorless photographic cyan color-forming coupler having, in a position for coupling with an oxidation product of an aromatic primary amine developing agent, an eliminatable group represented by the following formula (I):--O--(R.sub.1 O).sub.x (R.sub.2 O).sub.y R.sub.3 (I)wherein R.sub.1 and R.sub.2 each represents a substituted or unsubstituted alkylene group which may be branched provided that R.sub.1 is not substituted with an aryl group at the carbon atom adjacent to the oxygen atom bonded to the coupling position, R.sub.3 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a cycloalkyl group, an aryl group, or a cyan coupler residue, x represents a positive integer, and y represents 0 or a positive integer.Type: GrantFiled: November 14, 1979Date of Patent: April 28, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Yukio Yokota
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Patent number: 4254212Abstract: A photographic silver halide light-sensitive emulsion containing a cyan color forming colorless coupler having at the coupling position at which the coupler reacts with the oxidation product of an aromatic primary amine developing agent at least one alkoxy group having a sulfonyl group as a substituent and represented by the following general formula (I):--O--R--SO.sub.2 --R.sub.1 (I)wherein R represents a saturated or unsaturated divalent aliphatic group having 1 to 4 carbon atoms which may be straight or branched chain and may be substituted (except those having an aryl group as a substituent on the carbon atom adjacent the oxygen atom bonded to the coupling position); and R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group; and wherein R and R.sub.1 can combine directly or through a bonding group to form a ring and an image-forming process.Type: GrantFiled: August 29, 1979Date of Patent: March 3, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Yukio Yokota, Akira Ogawa, Hiroshi Sawaguchi
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Patent number: 4250251Abstract: Ballasted primary and secondary 3'-sulfamoyl-1-hydroxy-2-naphthanilide couplers are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of a combination of a coupler solvent and the coupler capable of permitting the formation of a microcrystalline dye. Surprisingly these microcrystalline dyes exhibit a broadened absorption characteristic in the 750 to 850 nm region of the spectrum. Dye images having such absorption characteristics are particularly suited to forming integral infrared absorbing sound tracks in photographic elements, such as motion picture projection films.Type: GrantFiled: July 11, 1979Date of Patent: February 10, 1981Assignee: Eastman Kodak CompanyInventors: Harland J. Osborn, Robert G. Cameron, Edward J. Walsh
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Patent number: 4248962Abstract: Photographic couplers which release a photographically useful group by an intramolecular nucleophilic displacement reaction can be used in photographic emulsions, elements and processes to provide a photographically useful group in a controlled manner.Type: GrantFiled: December 22, 1978Date of Patent: February 3, 1981Assignee: Eastman Kodak CompanyInventor: Philip T. S. Lau
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Patent number: 4241172Abstract: A silver halide color photographic material comprising a coupler represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 individually represent a substituted or unsubstituted alkyl, alkenyl, aryl, cycloalkyl group, or,-A-X).sub.n ].sub.m Cp in which Cp represents a cyan coupler, magenta coupler or yellow coupler, A represents a substituted or unsubstituted divalent aliphatic group, X represents a divalent group, and m and n individually represent a value of 0 or 1, provided that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is -A-X).sub.n ].sub.m Cp.Type: GrantFiled: May 24, 1979Date of Patent: December 23, 1980Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kenichiro Okaniwa, Takashi Uchida, Morio Kobayashi, Hiroshi Sugita, Takashi Sasaki
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Patent number: 4239851Abstract: A silver halide photographic light-sensitive material and a process for preparing the same are disclosed wherein an oil-soluble photographic additive and, in particular, a cyan coupler is dissolved in an epoxy compound of the formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents an alkyl group or substituted alkyl group containing 1 to 40 carbon atoms, an alkoxycarbonyl group or substituted alkoxycarbonyl group containing 1 to 40 carbon atoms, or a hydrogen atom, provided that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 do not represent hydrogen atoms at the same time and that the sum of the number of carbon atoms of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is 8 to 60, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and may combine to form a ring; or in an epoxy compound formed by linking two compounds of said formula (I) which may be the same or different through any of R.sub.1 to R.sub.4 or the ring formed by R.sub.1 to R.sub.4.Type: GrantFiled: February 1, 1979Date of Patent: December 16, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Yukio Yokota
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Patent number: 4233389Abstract: Fluorinated 1-hydroxy-2-naphthamide couplers which are N-substituted with a lower alkylphenoxybutyl ballasting group are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of a combination of a coupler solvent and the coupler capable of permitting the formation of a microcrystalline dye. Surprisingly these microcrystalline dyes exhibit a broadened absorption characteristic in the 750 to 850 nm region of the spectrum. Dye images having such absorption characteristics are particularly suited to forming integral infrared absorbing sound tracks in photographic elements, such as motion picture projection films.Type: GrantFiled: July 23, 1979Date of Patent: November 11, 1980Assignee: Eastman Kodak CompanyInventors: Jose M. Fernandez, Robert G. Cameron, Edward J. Walsh
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Patent number: 4228233Abstract: A photographic silver halide light-sensitive emulsion containing a cyan dye forming, colorless coupler having, at the coupling position, an alkoxy group having at least one sulfonamido or sulfamoyl group as a substituent and represented by one of the following general formulae (I) and (II): ##STR1## wherein R represents a saturated or unsaturated, divalent aliphatic group (except those having an aryl group as a substituent on the carbon atom adjacent the oxygen atom bonded to the coupling position); R.sub.1, R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom, an aliphatic group, or an aromatic group; and R.sub.2 represents an aliphatic group, an aromatic group or a heterocyclic group; and wherein R.sub.3 and R.sub.Type: GrantFiled: September 22, 1978Date of Patent: October 14, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Yukio Yokota
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Patent number: 4208210Abstract: A process for forming an optical sound track comprising applying ultraviolet light exposure to an optical sound track area of a multi-layer color photographic light-sensitive material comprising a support, color image-forming silver halide emulsion layers consisting of at least one blue-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least one red-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and at least one green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and at least one ultraviolet light-sensitive silver halide emulsion layer (sound track forming layer) containing a non-diffusible silver bleach inhibitor and an infrared dye-forming coupler which forms a dye having an absorption maximum at wavelengths longer than 725 nm, wherein at least one layer interposed between the ultraviolet light-sensitive silver halide emulsion layer and the support contains a non-diffusible ultraviolet absorbant.Type: GrantFiled: March 24, 1977Date of Patent: June 17, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadao Sakai, Masayoshi Kawai
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Patent number: T101601Abstract: Novel phenolic cyan dye-forming couplers contain in the 2-position a p-cyanophenylureido group. These couplers are useful in photographic emulsions, elements and processes.Type: GrantFiled: July 6, 1981Date of Patent: March 2, 1982Inventor: Philip T. S. Lau