Multiple Similar Elements Or Sections (e.g., Built Up, Etc.) Patents (Class 96/100)
-
Patent number: 5466279Abstract: An electric dust collector system which contains a plurality of charging mechanisms such as ionizer electrodes for charging dust particles and a plurality of collector mechanisms such as collector electrodes for collecting the dust particles. The collector electrodes are oxidized inwardly from the surface to form a metal oxide semiconductor layer. An ionizer-collector integrated electric dust collector system where the collector electrodes are extended and connected from the ionizer electrodes is disclosed. In a preferred embodiment, an electric dust collector system further contains electrostatic filters for collecting the dust particles and mesh-shaped electrodes for applying the electric field.Type: GrantFiled: January 21, 1994Date of Patent: November 14, 1995Assignee: Kabushiki Kaisha ToshibaInventors: Takao Hattori, Takaki Iwanaga, Toru Yamaguchi
-
Patent number: 5401301Abstract: The invention describes a device for transporting materials which has at least a first pipe (I) and a second pipe (II), each having a six-cornered, honeycomb-shaped flow cross section, the first pipe (I) having at least two first wall parts (1) which are not arranged adjacent to one another and whose longitudinal edges (1') are arranged at a first distance (a) from the connection point (3) between the first wall part (1) and the adjacent second wall part (2), which connection point (3) is nearest to the longitudinal edge (1'). Plate-shaped brackets (4) are arranged at the sides of the first wall parts (1) remote of the materials to be transported at a second distance (c) from the nearest longitudinal edge (1'). The angle (.alpha.) of inclination between the plane of the bracket (4) and the plane of the first wall part (1) is 60.degree., and the second pipe (II) has at least one corresponding first wall part (1) which is arranged parallel to the second wall part (2) of the first pipe (I).Type: GrantFiled: November 19, 1993Date of Patent: March 28, 1995Assignee: Metallgesellschaft AktiengesellschaftInventors: Christian Schulmerich, Wilhelm Moeller
-
Patent number: 5401302Abstract: An electrostatic separator is described which includes honeycomb collecting electrodes, which consist of star-shaped elements, wherein each star-shaped element consists of three wall parts (1, 2, 3), which are centrally joined and extend at an angle of 120.degree. to each other, at least one tube section (1', 2', 3', 5', 6') extends along the outer edge of each wall part, the tube sections (2', 5', 6') of any two adjacent star-shaped elements are arranged one over the other and adjacent star-shaped elements are connectted by a connecting rod (4), which extends in the tube sections (1', 2', 3', 5', 6') of at least two adjacent star-shaped elements.Type: GrantFiled: February 7, 1994Date of Patent: March 28, 1995Assignee: Metallgesellschaft AktiegesellschaftInventors: Christian Schulmerich, Wilhelm Moller
-
Patent number: 5254155Abstract: A wet electrostatic precipitator device is provided which has a plurality of hexagonal honeycomb collector passage ways, a corresponding mating plurality of stationary rod elements to be centrally located at axes of each said hexagonal honeycomb collector passage ways and a set of bands integrally formed with a multiplicity of the ionizing blades which protrude from the surfaces of each of the stationary rod elements. The geometry of the design has a high degree of efficiency, while at the same time causes the ionizing blades to maintain their electrostatic charging characteristics under a harsh set of environmental conditions.Type: GrantFiled: April 27, 1992Date of Patent: October 19, 1993Inventor: Fred E. Mensi
-
Patent number: 4095983Abstract: .alpha.-Acylacetanilide yellow-forming couplers having a cyclic 5- or 6-membered sulfonamide group attached through its nitrogen atom to the phenyl group of the anilide portion of the molecule provide dyes of better light stability. The couplers include both 2-equivalent and 4-equivalent couplers.Type: GrantFiled: December 7, 1976Date of Patent: June 20, 1978Assignee: AGFA-Gevaert AGInventors: Erich Wolff, Dieter Lowski
-
Patent number: 4076529Abstract: Color photographic elements, compositions, diffusion transfer film units and processes are described which employ a nondiffusible p-sulfonamidoaniline or p-sulfonamidophenol which is preferably alkali-cleavable upon oxidation to release a diffusible color-providing moiety.Type: GrantFiled: April 16, 1973Date of Patent: February 28, 1978Assignee: Eastman Kodak CompanyInventors: Lee J. Fleckenstein, John Figueras
-
Patent number: 4040832Abstract: In one embodiment, the present invention relates to novel heterocyclic compounds as represented in the following formula ##STR1## wherein R and R' each are hydrogen or alkyl, Y is .dbd.O or .dbd.NH and n is a positive integer from 1 to 7.In another embodiment, the present invention is directed to the use of the above-denoted class of heterocyclic compounds as photographic silver halide developing agents and to photographic processes, products and compositions employing the same.Type: GrantFiled: September 9, 1976Date of Patent: August 9, 1977Assignee: Polaroid CorporationInventor: Stanley M. Bloom
-
Patent number: 4040839Abstract: A silver halide photographic emulsion containing at least one sensitizing dye of the following general formula (I) and at least one sensitizing dye of general formulae (II) and/or (III), in an amount effective to achieve supersensitization: ##STR1## wherein V.sup.1 and V.sup.2, which may be the same or different, each represents a hydrogen atom, halogen atom, trifluoromethyl, cyano, carboxy, alkoxycarbonyl, aminosulfonyl or alkylsulfonyl; W.sup.1 and W.sup.2, which may be the same or different, each represents a hydrogen atom, halogen atom, alkyl, alkoxy, hydroxy, acyloxy or phenyl; R.sup.1 represents alkyl or substituted alkyl; R.sup.2 and R.sup.3, which may be the same or different, each represents alkyl or substituted alkyl, and at least one of R.sup.2 and R.sup.3 represents 1 or 0; substituted alkyl containing a carboxy or sulfo radical; R.sup.4 and R.sup.5, which may be the same or different, each has the same meanings as R.sup.1 ; X.sup.- represents an acid anion; and m represents ##STR2## wherein V.Type: GrantFiled: May 19, 1976Date of Patent: August 9, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichi Matsuyama, Masanao Hinata, Akira Sato
-
Patent number: 4040835Abstract: A two-equivalent magenta coupler forming magenta dye images in a color photographic material by a coupling reaction with an oxidation product of a primary aromatic amino color developing agent and having the formula (I) ##STR1## wherein [A] represents a residue of a magenta dye-forming coupler; ##STR2## represents a group which is substituted for one of the hydrogen atoms of the active methylene group of the coupler A; Z represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; B represents a --D-Y residue or an --N Q residue; D represents an oxygen atom, a sulfur atom, or an --NR-- group; R of the --NR-- group represents a hydrogen atom, an alkyl group, or an aryl group; Y represents an alkyl group, an aryl group, or a heterocyclic group; Q of the --N Q residue represents a non-metal atomic group necessary for forming a 5-membered or 6-membered nitrogen-containing heterocyclic group; n is 1 or 2 and when n is 2, B can also represent a --Y group; a color photographic silver halide liType: GrantFiled: June 27, 1975Date of Patent: August 9, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Atsuaki Arai, Keisuke Shiba, Minoru Yamada, Nobuo Furutachi, Kotaro Nakamura
-
Patent number: 4040836Abstract: A photographic two-equivalent magenta coupler represented by the following general formula (I):a--s(o).sub.n --R (I)wherein A represents a residue of a magenta color image forming coupler in which one of the hdyrogen atoms on the active methylene group is eliminated; R represents an alkyl group, an aryl group or a heterocyclic group; and n represents 1 or 2; and color photographic light-sensitive material containing the two-equivalent magenta coupler.Type: GrantFiled: July 18, 1975Date of Patent: August 9, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Atsuaki Arai, Kotaro Nakamura, Minoru Yamada, Nobuo Furutachi
-
Patent number: 4036643Abstract: Lipophilic non-diffusing color formers yielding diffusing dyes are employed in color transfer systems to provide improved diffusion and better quality of color. The color formers are two-equivalent couplers having in the coupling position acyloxy, or sulfonyloxy groups which complete a lactone or sultone ring, respectively, and are stable to hydrolysis under alkaline development conditions. Color-providing material is created by a reaction which opens the lactone or sultone intramolecular ring after the non-diffusing color former reacts with the oxidized color developer molecule. Examples are given of intramolecular 2-equivalent couplers which react with the developer to give yellow, magenta and cyan dyes. The 2-equivalent color formers are unique since they have an intramolecular lactone or sultone ring which opens under oxidative coupling conditions to yield the diffusible yellow, magenta and cyan dyes.Type: GrantFiled: November 1, 1974Date of Patent: July 19, 1977Assignee: GAF CorporationInventors: Felix Viro, Michael C. Mourning
-
Patent number: 4032345Abstract: A photographic 2-equivalent color coupler capable of coupling with the oxidation product of an aromatic primary amine developing agent in which the coupling position is substituted with an isothiocyanato group; a color photographic emulsion, material, and developer containing the above-described 2-equivalent color coupler; and a method of forming color images comprising developing an exposed silver halide photographic material in the presence of the above-described 2-equivalent color coupler.Type: GrantFiled: August 1, 1975Date of Patent: June 28, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Inouye, Yukio Yokota, Akio Okumura, Seiiti Kubodera, Keisuke Shiba
-
Patent number: 4032346Abstract: A photographic two-equivalent magenta coupler, capable of forming a magenta color image upon coupling reaction with an oxidation product of an aromatic primary amine developing agent, represented by the following general formula I: ##STR1## wherein (A) represents a residue of a magenta color image forming coupler; ##STR2## represents a group which is substituted FOR ONE HYDROGEN ATOM OF THE ACTIVE METHYLENE GROUP IN THE COUPLER A; Z represents an oxygen atom or a sulfur atom; B represents a -- Y group, a -- D -- Y group, or a ##STR3## group; D represents an oxygen atom or an --NR -- group; R represents a hydrogen atom, an alkyl group or an aryl group; Y represents an alkyl group, an aryl group or a heterocyclic group; and Q in the ##STR4## group represents the non-metallic atoms necessary to form a 5-membered or 6-membered nitrogen containing heterocyclic ring; and color photographic light-sensitive materials containing the two equivalent magenta coupler.Type: GrantFiled: July 31, 1975Date of Patent: June 28, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Furutachi, Kotaro Nakamura, Minoru Yamada, Atsuaki Arai
-
Patent number: 4032347Abstract: A photographic material is described comprising novel 2-equivalent yellow forming color couplers the active methylene group of which carries a 2,6-dioxo-7-purinyl group in its oxo- or enol form.Type: GrantFiled: November 25, 1975Date of Patent: June 28, 1977Assignee: AGFA-GEVAERT N.V.Inventors: Raphael Karel Van Poucke, Marc Willem Ailliet, Leo August Van Wijnsberghe, Gaston Jacob Benoy
-
Patent number: 4030927Abstract: A silver halide photographic emulsion supersensitized by a combination of (1) at least one cyanine sensitizing dye containing therein two 5- or 6-membered nitrogen-containing heterocyclic nuclei which may be the same as or different from each other and which are attached, through a conjugated methine chain consisting of three, five or seven methine groups, to each other, and (2) a benzotriazole substituted with at least one halogen atom, both (1) and (2) being present in a supersensitizing amount. The emulsion shows reduced fog and intensified spectral sensitivity than an emulsion containing the cyanine dye alone.Type: GrantFiled: January 14, 1976Date of Patent: June 21, 1977Assignee: Fuji Photo Film Co., Ltd.Inventor: Tadaaki Tani
-
Patent number: 4029508Abstract: A yellow color forming photographic coupler represented by the following general formula (I): ##STR1## wherein Q represents an aliphatic group, an alicyclic group, an aromatic group or a heterocyclic group; Y represents a hydrogen atom, an aliphatic group, an alicyclic group, an aromatic group or a heterocyclic group; R represents a divalent aliphatic group, a divalent alicyclic group, a divalent aromatic group or a divalent heterocyclic group; and Z represents an oxygen atom, a sulfur atom or a nitrogen atom substituted with an electron attracting group.Type: GrantFiled: August 14, 1975Date of Patent: June 14, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Mitsugu Tanaka, Atsuaki Arai, Kiyoshi Nakazyo, Keisuke Shiba
-
Patent number: 4028106Abstract: An improved method for developing an exposed silver halide color photosensitive material is disclosed which comprises conducting the development in the presence of a cyan coupler. The coupler has, in the active position thereof, the following split-off group: ##STR1## WHEREIN R.sub.1 is an aliphatic hydrocarbon residue, an aromatic hydrocarbon residue, or a heterocyclic ring residue; R.sub.2 is an aliphatic hydrocarbon residue or an aromatic hydrocarbon residue; l is an integer of 0 to 4 inclusive.Type: GrantFiled: November 4, 1975Date of Patent: June 7, 1977Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Haruo Hori, Shoji Kikuchi, Hajime Wada, Sadatosi Kobayasi, Takaya Endo
-
Patent number: 4026707Abstract: Silver halide supersensitized with a mixture of naphthoxazole and benzoxazole carbocyanine dyes.Type: GrantFiled: August 12, 1976Date of Patent: May 31, 1977Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Tadahiko Obikawa, Shigemasa Itoh
-
Patent number: 4026709Abstract: The present invention relates to new compounds having an active methylene group or phenolic hydroxyl group and therefore capable of being used as photographic color couplers. The new compounds contain at least one radical of a phosphoric acid diester, phosphonic acid diester, phosphoric acid diamide, phosphonic acid diamide, phosphoric acid ester-amide or phosphonic acid ester-amide.Type: GrantFiled: April 19, 1976Date of Patent: May 31, 1977Assignee: Ciba-Geigy AGInventors: Bernhard Piller, Paul Tschopp, Thomas Stauner, Walter Heierli
-
Patent number: 4026706Abstract: A silver halide photosensitive element using specifically defined yellow, magenta and cyan color couplers in the individual respectively blue, green and red-sensitive layers.Type: GrantFiled: June 21, 1974Date of Patent: May 31, 1977Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shinichi Nakamura, Hidehiko Ishikawa, Katsuo Mogaki, Mikio Sato, Shui Sato, Masahiko Taguchi, Haruhiko Sato
-
Patent number: 4022617Abstract: A photothermographic element and composition for providing a dye image comprises (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a silver salt oxidizing agent, with (ii) an organic reducing agent, (c) a polymeric binder for the element or composition and (d) a leuco-base dye which is oxidizable to form a dye image. After imagewise exposure of a photothermographic element or composition containing the described combination, a color image can be developed by overall heating the photothermographic element. Negative or positive dye images can be provided. The dye image can be transferred to an image receiver.Type: GrantFiled: January 19, 1976Date of Patent: May 10, 1977Assignee: Eastman Kodak CompanyInventor: Hugh G. McGuckin
-
Patent number: 4022620Abstract: A method of forming color photographic images which comprises developing image-exposed photographic silver halide emulsion layer with a primary aromatic amino color developing agent in the presence of a yellow color forming coupler represented by the following general formula (I) ##STR1## wherein X.sub.1 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group or an acyl group; X.sub.2 represents a hydrogen atom, an alkyl group or an aryl group; X.sub.3 represents a hydrogen atom, an alkyl group, an aryl group or an acyl group; Y represents an oxygen atom or a sulfur atom; and Q represents a residue of a yellow color forming coupler, e.g., a yellow coupler in which one hydrogen atom attached to the active methylene group of the coupler is eliminated. These yellow color forming couplers provide yellow color images having superior properties.Type: GrantFiled: April 3, 1975Date of Patent: May 10, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Okumura, Atsushi Sugizaki, Seiji Ichijima, Keisuke Shiba, Kiyoshi Nakazyo
-
Patent number: 4021238Abstract: A process for forming color photographic images which comprises color-developing at temperatures higher than about 30.degree. C a multilayer color photographic material comprising a support having thereon at least two photosensitive emulsion layers each containing a coupler which can form a non-diffusible colored dye on coupling with the oxidation product of an aromatic primary amino color developing agent and at least one fogged emulsion layer containing a coupler which can form a non-diffusible colored dye on coupling with the oxidation product of an aromatic primary amino color developing agent.Type: GrantFiled: January 22, 1975Date of Patent: May 3, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Jun Hayashi, Takeshi Kato, Atsuaki Arai
-
Patent number: 4021248Abstract: A color photographic light-sensitive material comprising a silver halide photographic emulsion containing (1) at least one compound selected from the group consisting of (a) a compound represented by the following general formula (I);cp - Z (I)wherein Cp represents a monovalent residue of a magenta or yellow coupler residue in which one hydrogen atom of the active methylene group is replaced by a coupling off group Z eliminated upon coupling reaction with an oxidation product of an aromatic primary amine color developing agent, and Z represents a nitrogen-containing coupling-off group connected to Cp at a nitrogen atom thereof, and (b) a 4-position unsubstituted 3-arylamino-5-pyrazolone derivative, and (2) at least one compound represented by the following general formula (II);q - sh (ii)wherein Q represents a heterocyclic group, bonded directly or indirectly thereto and containing at least one of a --SO.sub.Type: GrantFiled: September 3, 1975Date of Patent: May 3, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Kiyoshi Nakazyo, Reiichi Ohi, Keiichi Adachi
-
Patent number: 4021428Abstract: 4-Piperidino-5-oxo-2-pyrazoline represented by the following general formula (X); ##STR1## wherein R.sub.1 represents a group having about 6 to about 40 carbon atoms, R.sub.2 represents a hydrogen atom or a group having 0 to about 45 carbon atoms, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom or a group having 0 to 20 carbon atoms, and R.sub.3 and R.sub.4 may combine to form an aliphatic ring, an aromatic ring or a heterocyclic ring. The 4-piperidino-5-oxo-pyrazolines are useful as magenta color couplers.Type: GrantFiled: August 22, 1975Date of Patent: May 3, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Furutachi, Atsuaki Arai
-
Patent number: 4021240Abstract: In a photothermographic element, composition or process for producing developed images employing processing with heat, a combination comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a silver salt oxidizing agent and (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-sulfonamidophenol such as the corresponding benzenesulfonamidophenol, and (c) a four equivalent color-forming coupler, and (d) a polymeric binder, provides an image in color. After imagewise exposure of the photothermographic element or composition, a color image can be developed by heating the photothermographic element or composition containing this combination. The combination can be in a diffusion transfer, photothermographic element.Type: GrantFiled: December 22, 1975Date of Patent: May 3, 1977Assignee: Eastman Kodak CompanyInventors: Felice Mary Cerquone, Rolf Steven Gabrielsen, Roland George Willis
-
Patent number: 4015990Abstract: A tocopherol derivative represented by the general formula, ##STR1## wherein R, R.sub.1 and R.sub.2 represent individually a hydrogen atom or a methyl group; and R.sub.3 represents a straight chain or branched-chain alkyl group having 1 to 18 carbon atoms, or a substituted or unsubstituted aryl group, is incorporated as a light-fading stabilizer into the photosensitive layer of a color photographic lightsensitive material, whereby the photographic material can be prevented not only from fading and discoloration of the finally obtained color image and from discoloration of the non-color-developed portion, but also from formation of fog. Furthermore, the said stabilizer itself is excellent in dispersion stability.Type: GrantFiled: June 19, 1975Date of Patent: April 5, 1977Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Yaichi Ishida, Hiroshi Ikeda, Shigetoshi Hiraishi
-
Patent number: 4015988Abstract: A multilayer color photographic light-sensitive material comprising a support having thereon at least two silver halide emulsion layer units, each of which is sensitive to radiation of a substantially different wavelength region within the wavelength region of from about 220 nm to about 800 nm and contains a color-forming coupler capable of forming a dye on coupling with an oxidized primary aromatic amine developing agent, with at least one of the emulsion layer units containing an ICC coupler represented by the general formula (I) ##STR1## wherein Cp represents a coupler residue; L and M each represents a nitrogen atom or a methine group, V represents a monocyclic or dicyclic aromatic ring of the benzene series, and at least one of L and M represnts a nitrogen atom; which releases a triazole derivative or a diazole derivative on coupling with an oxidized primary aromatic amine developing agent, and with the emulsion layer unit containing the ICC coupler represented by the general formula (I) or another layerType: GrantFiled: March 4, 1975Date of Patent: April 5, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi, Toshiaki Aono
-
Patent number: 4012258Abstract: Process of forming dye images using color couplers containing a monohydro-polyfluoroalkyl group.Type: GrantFiled: April 14, 1975Date of Patent: March 15, 1977Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Tamotsu Kojima, Shui Sato, Wataru Fujimatsu, Hiroyuki Imamura, Takaya Endo
-
Patent number: 4012259Abstract: A photographic silver halide emulsion containing a yellow color forming coupler, in which one hydrogen atom of an active methylene group is replaced by a 2,5-dioxo-1-imidazolidinyl group, in which a nitrogen atom at 3-position and a carbon atom at 4-position are connected to form a ring through a divalent aliphatic radical, a photographic element containing the emulsion and a method for forming color photographic images which comprises developing the image-exposed photographic silver halide emulsion with a primary aromatic amino developing agent. These yellow color forming couplers have a high coupling reactivity as well as no adverse effect on the bleaching of developed silver and thus they are suitable for use in rapid processing type color photographic materials.Type: GrantFiled: May 14, 1974Date of Patent: March 15, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Okumura, Akira Sato, Seiji Ichijima, Keisuke Shiba, Kiyoshi Nakazyo
-
Patent number: 4010037Abstract: A silver halide photographic emulsion containing, in combination, supersensitizing amounts of at least one sensitizing dye of the following general formula (I) ##STR1## wherein Z.sub.1 and Z.sub.2 each represents an atomic group required for forming a benzimidazole ring; R.sub.1 and R.sub.2 each represents an aliphatic group and at least one of R.sub.1 and R.sub.2 represents an alkyl group having a carboxy group, a hydroxyalkyl group or an alkyl group having a sulfo group; X.sub.1 represents an acid anion; and m is 1 or 2, m being 1 when the dye forms an inner salt (a betaine-like structure) and at least one sensitizing dye of the following general formula (II) ##STR2## wherein Z.sub.3 represents an atomic group required for forming a benzoxazole ring or a .beta.-naphthoxazole ring; Z.sub.4 represents an atomic group required for forming a benzothiazole ring, a benzoselenazole ring, a .beta.-naphthothiazole ring or a .beta.-naphthoselenazole ring; R.sub.3 and R.sub.Type: GrantFiled: January 28, 1976Date of Patent: March 1, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Tadashi Ikeda, Mitsuo Iwamoto
-
Patent number: 4010035Abstract: A light-sensitive silver halide color photographic material comprising a new development inhibitor releasing type compound and a hardening agent and a process for developing thereof.Type: GrantFiled: May 15, 1975Date of Patent: March 1, 1977Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Mitsuto Fujiwhara, Takaya Endo, Ryosuke Satoh
-
Patent number: 4009029Abstract: Photographic elements are disclosed which contain a blocked development restrainer which is designed to provide timely release of a development restrainer when the photographic element is processed with an alkaline processing composition. The photographic elements are especially useful in image-transfer film units where the blocked development restrainers will permit initial development to occur and, upon cleavage, will substantially restrain further development.Type: GrantFiled: June 20, 1975Date of Patent: February 22, 1977Assignee: Eastman Kodak CompanyInventors: Howell Allen Hammond, Wilbert Jeptha Humphlett, Ilmari Fritiof Salminen
-
Patent number: 4009035Abstract: A cyan coupler of the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7, incorporated in a light-sensitive silver halide photographic material produces a cyan dye photographic image which is favorable in light absorption characteristics and excellent in fastness when the coupler is developed with an aromatic primary amine type developing agent.Type: GrantFiled: January 22, 1975Date of Patent: February 22, 1977Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Tamotsu Kojima, Shui Sato, Takaya Endo, Tugumoto Usui, Tomio Horiuchi
-
Patent number: 4009038Abstract: A silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer containing a hydrophobic phenolic or naphtholic cyan dye forming coupler together with a 2-(2'-hydroxyphenyl)benzotriazole compound. The color photographic material provides a cyan dye image having improved moisture resistance and high fastness to heat.Type: GrantFiled: May 23, 1975Date of Patent: February 22, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Atsuaki Arai, Reiichi Ohi, Minoru Yamada, Kenji Yokoo, Hiroshi Hara
-
Patent number: 4008086Abstract: An improved photographic system in which a new yellow coupler is employed. The yellow coupler has the formula, ##STR1## wherein X is a --N= or --CH= group; Cp is a residue formed by removing one hydrogen atom of the active methylene group of an acetanilide yellow coupler; n is an integer of 1 to 4; and R is a hydrogen or halogen atom, or an alkyl, alkoxy, alkylcarbonyl, aryl, arylcarbonyl, amino, acylamino, carboxyl, nitrile, aralkyl or aralkyloxy group, provided that in case n is 2 or more the R groups may be the same or different, and two adjacent R groups in combination may form a benzene ring.Type: GrantFiled: May 16, 1975Date of Patent: February 15, 1977Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Wataru Fujimatsu, Shui Sato, Tamotsu Kojima, Takaya Endo, Kazumi Minahara
-
Patent number: 4004928Abstract: Use of the compounds represented by the general formula; ##STR1## (wherein R represents an alkyl group of 1 - 8 carbon atoms) as a permanent solvent for color coupler or ultraviolet ray absorber in color photographic materials.Type: GrantFiled: August 25, 1975Date of Patent: January 25, 1977Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Sadayuki Miyazawa, Yoshikazu Takaya
-
Patent number: 4004929Abstract: Photographic elements containing at least one silver halide emulsion layer in which there is incorporated a cyan-color forming material which, upon reaction with oxidized color developer, forms a cyan dye having unwanted absorption in the green and blue regions of the visible spectrum can be color corrected to a surprising degree by the incorporation into said element of a colored coupler compound having the structure: ##STR1## wherein R.sup.2 is an alkyl group containing 1 to 6 carbon atoms, R.sup.3 and R.sup.4 are independently selected and are alkyl groups containing 2 to 6 carbon atoms, B is hydrogen or CooR.sup.6 wherein R.sup.6 is an alkyl group containing 1 to 8 carbon atoms, and A is a sulfonated naphthylazo group selected from those having the structure: ##STR2## wherein R.sup.5 is an alkyl group containing 1 to 4 carbon atoms, M is photographically inactive, M is a monovalent cation.Type: GrantFiled: March 21, 1975Date of Patent: January 25, 1977Assignee: Eastman Kodak CompanyInventor: Roy L. Orvis
-
Patent number: 4003748Abstract: A photographic silver halide material with at least one halide emulsion layer and at least one substance in heterogeneous contribution emulsified in oilformer compounds and a process of preparing the said photographic silver halide materials. The substances are introduced into photographic emulsions prior to coating by way of adding a hydrophilic phase containing in emulsified form the substances which are emulsified in the hydrophilic phase in form of a solution containing at least one substantially diffusion-resistant, substantially water-insoluble, substantially non-coupling dispersible .beta.-diketo compound with at least 9 carbon atoms, .beta.-keto carboxylic acid ester, .beta.-keto carboxylic acid amide, cyanoacetyl compound or .beta.-dicarboxylic acid ester with at least 13 carbon atoms as oilformer. The photographic material shows advantageous results i.a. with respect of stability of the emulsified substances in the layers and excellent sensitometric results.Type: GrantFiled: March 3, 1975Date of Patent: January 18, 1977Assignee: AGFA-Gevaert, A.G.Inventors: Hans Langen, Erwin Ranz, Rudolf Meyer, Johannes Sobel
-
Patent number: 4002480Abstract: A photographic silver halide emulsion containing at least one dinuclear merocyanine sensitizing dye, and at least one compound represented by the following formula: ##STR1## wherein D represents a divalent aromatic group, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each represents a hydrogen atom, a hydroxyl group, an alkoxyl group, an aryloxy group, a halogen atom, a heterocyclic group, a mercapto group, an alkylthio group, an arylthio group, a heterocyclic thio group, an amino group, an alkylamino group, a cycloalkylamino group, an arylamino group, a heterocyclic amino group, an aralkylamino group, or an aryl group.Type: GrantFiled: March 6, 1975Date of Patent: January 11, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Yuji Mihara, Reiichi Ohi, Keiichi Adachi, Akira Sato
-
Patent number: 3998642Abstract: Color photographic elements are disclosed having, incorporated therein, one or more novel phenolic materials which have the following structure: ##STR1## wherein R.sub.1 is a non-interfering alkyl, aryl, amino, substituted alkyl or substituted aryl ballasting group of the type which is useful in photographic incorporated cyan color-forming couplers, and R.sub.2 is hydrogen or a lower alkyl group.Type: GrantFiled: July 11, 1975Date of Patent: December 21, 1976Assignee: Eastman Kodak CompanyInventors: Philip T. S. Lau, Roy L. Orvis, Thomas E. Gompf
-
Patent number: 3998641Abstract: Diffusion-fast yellow couplers for color photographic silver halide materials with at least one silver halide emulsion layer are provided containing a substituted or unsubstituted 2-cyclotetramethylene sulfone group in a non-coupling position of the coupler molecule which couplers are excellently emulsifiably in color photographic emulsions, are highly reactive and stable under heat and tropic conditions. The dyes produced from them by chromogenic development in color developers containing aromatic components of the p-phenylene diamine series which contains at least one primary amino group are eminently stable under heat and tropic conditions, have a low side absorptions in the unwanted region of the spectrum and low fog values.Type: GrantFiled: December 3, 1974Date of Patent: December 21, 1976Assignee: AGFA-Gevaert, A.G.Inventors: Karl-Wilhelm Schranz, Friedrich-Wilhelm Kunitz
-
Patent number: 3996055Abstract: A color photographic light-sensitive material, comprising a support having thereon at least one silver halide emulsion and the light sensitive material containing a colored cyan coupler having a main absorption in the blue region of the spectrum and a colored cyan coupler having a main absorption in the green region of the spectrum, and a colorless cyan coupler, each coupler being capable of coupling with an oxidation product of a p-phenylenediamine color-developing agent to form a cyan dye.Type: GrantFiled: December 23, 1974Date of Patent: December 7, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshisato Minagawa, Akio Okumura
-
Patent number: 3990899Abstract: An incorporated-coupler multi-layered color photographic light-sensitive material which comprises a support having thereon at least two light-sensitive emulsion layer units which provide, upon color development, images having substantially different hues, at least one of the light-sensitive emulsion layer units comprising two or more unit layers in which at least one of which unit layers contain an ICC uncolored coupler alone or in combination with another coupler.Type: GrantFiled: May 6, 1974Date of Patent: November 9, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi
-
Patent number: 3990896Abstract: A method of forming color photographic images which comprises developing an image-exposed photographic silver halide emulsion layer with a primary aromatic amino color developing agent in the presence of a yellow color forming coupler, in which one hydrogen atom of an active methylene group is substituted with a 5-alkylidene-3-hydantoinyl group and a color photographic light-sensitive element which comprises a silver halide emulsion containing a yellow color forming coupler, in which one hydrogen atom of an active methylene group of the coupler is substituted with a 5-alkylidene-3-hydantoinyl group. These yellow color forming couplers have a high coupling reactivity and additionally provide a stable coupler dispersion.Type: GrantFiled: October 9, 1974Date of Patent: November 9, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Atsuaki Arai, Akio Okumura, Seiji Ichijima, Keisuke Shiba, Kiyoshi Nakazyo
-
Patent number: 3989529Abstract: Hydrophilic coupler solutions are improved by the addition of a diepoxide, pyruvaldehyde, ethyleneglycoldiglycidyl ether or 2,3-butanedione. These solutions exhibit greater stability and a reduced rate of viscosity increase when admixed into gelatin silver halide emulsions.Type: GrantFiled: October 29, 1974Date of Patent: November 2, 1976Assignee: GAF CorporationInventors: Felix Viro, Salvatore Emmi
-
Patent number: 3988155Abstract: A silver halide photographic emulsion containing, in supersensitizing amounts, at least one sensitizing dye represented by the following general formula (I) ##EQU1## wherein Z.sub.11 represents the atoms necessary to complete a pyridine nucleus or a quinoline nucleus; Z.sub.12 represents the atoms necessary to complete an oxazole nucleus, a benzoxazole nucleus, a naphthoxazole nucleus, an imidazole nucleus, a benzimidazole nucleus or a naphthoimidazole nucleus; and R.sub.11 and R.sub.12 each represents an aliphatic group with at least one of R.sub.11 and R.sub.12 having a carboxy or sulfo group; and at least one sensitizing dye represented by the following general formula (II) ##EQU2## wherein Z.sub.21 and Z.sub.22, which can be the same or different, each represents the atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus, a selenazole nucleus or a benzoselenazole nucleus; and R.sub.21 and R.sub.22 each represents an aliphatic group with at least one of R.sub.21 and R.sub.Type: GrantFiled: September 4, 1975Date of Patent: October 26, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Akira Sato, Tadashi Ikeda
-
Patent number: 3986878Abstract: A silver halide photographic emulsion containing, in supersensitizing amounts, at least one sensitizing dye represented by the following general formula (I) ##EQU1## wherein Z.sub.11 represents the atoms necessary to complete a thiazole nucleus, a selenazole nucleus, a benzothiazole nucleus, a benzoselenazole nucleus, a naphthothiazole nucleus or a naphthoselenazole nucleus; Z.sub.12 represents the atoms necessary to complete a naphthothiazole nucleus, or a naphthoselenazole nucleus; and R.sub.11 and R.sub.12 each represents an aliphatic group with at least one of R.sub.11 and R.sub.12 having a carboxy or sulfo group; and at least one sensitizing dye represented by the following general formula (II) ##EQU2## wherein Z.sub.21 represents the atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus, a naphthothiazole nucleus, a selenazole nucleus, a benzoselenazole nucleus or a naphthoselenazole nucleus; Z.sub.Type: GrantFiled: September 4, 1975Date of Patent: October 19, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Akira Sato, Tadashi Ikeda
-
Patent number: 3985565Abstract: In a photothermographic element, composition or process for producing developed images employing processing with heat, a combination comprising (a) photographic silver halide in association with (b) a silver salt of a long-chain fatty acid and (c) a phenolic leuco dye reducing agent for the silver salt of a long-chain fatty acid provides an image in color. After imagewise exposure of the photothermographic element or composition, a color image can be obtained by heating the photothermographic element or composition containing this combination. This combination can be in a diffusion transfer, photothermographic element.Type: GrantFiled: July 12, 1974Date of Patent: October 12, 1976Assignee: Eastman Kodak CompanyInventors: Rolf S. Gabrielsen, Felice M. Cerquone
-
Patent number: 3985563Abstract: A silver halide photographic emulsion containing, in supersensitizing amounts, at least one sensitizing dye represented by the following General Formula (I): ##EQU1## in which Z.sub.11 represents an atomic group necessary for completing a pyridine or quinoline nucleus; Z.sub.12 represents an atomic group necessary for completing an oxazole, benzoxazole, naphthoxazole, imidazole, benzimidazole or naphthimidazole nucleus; and R.sub.11 and R.sub.12 each represents an aliphatic group and at least one of R.sub.11 and R.sub.12 is an aliphatic group containing a carboxy group or a sulfo group; and at least one sensitizing dye represented by the following General Formula (II): ##EQU2## in which Z.sub.21 represents an atomic group necessary for completing a thiazole, benzothiazole, naphthothiazole, selenazole, benzoselenazole or naphthoselenazole nucleus; Z.sub.22 represents an atomic group necessary for completing an imidazole, benzimidazole or naphthimidazole nucleus; an R.sub.21 and R.sub.Type: GrantFiled: September 9, 1975Date of Patent: October 12, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Masanao Hinata, Haruo Takei, Akira Sato, Tadashi Ikeda