Reducible Metal Compound Including Reducing Agent, I.e., Physical Developer Patents (Class 430/477)
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Patent number: 7985527Abstract: A method for producing a conductive film, having the steps: forming, on a support, a conductive metal portion containing a conductive material and a binder; bringing the conductive metal portion into contact with vapor or a hot water; and immersing the conductive metal portion into hot water having a temperature of 40° C. or higher.Type: GrantFiled: December 21, 2007Date of Patent: July 26, 2011Assignee: Fujifilm CorporationInventor: Tsukasa Tokunaga
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Publication number: 20040053168Abstract: A method of making a printing plate from a heat-sensitive PS plate of a positive-working mode for lithographic printing includes the steps of exposing the heat-sensitive PS plate to light and developing the PS plate using an alkaline developing solution containing at least one surfactant selected from the group consisting of anionic surfactants and ampholytic surfactants, and a salt selected from the group consisting of alkali metal salts and ammonium cation salts. The PS plate has a substrate and an image forming layer formed thereon, the image forming layer including a lower layer which is formed on the substrate and contains a water-insoluble and alkali-soluble resin and an upper heat-sensitive layer which is overlaid on the lower layer and contains a water-insoluble and alkali-soluble resin and an infrared absorption dye and exhibits an elevated solubility with respect to alkaline aqueous solutions when heated.Type: ApplicationFiled: September 10, 2003Publication date: March 18, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Hironori Ohnishi
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Publication number: 20030215757Abstract: A method of processing photosensitive materials in which one or more chemical compounds are at least partially retained after processing. The chemical compounds are unique to a particular process used by a copyright owner. The absence of the unique compounds in a processed material thus indicates that the processing has been without the authorization of the copyright owner.Type: ApplicationFiled: May 13, 2003Publication date: November 20, 2003Applicant: Eastman Kodak CompanyInventor: John R. Fyson
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Patent number: 6242167Abstract: An electron accepting developer useful for producing visible images by reaction with an electron donor in carbonless paper and photo-imaging systems, the developer comprising an acid-treated, water insoluble alkali metal-modified, inorganic oxide or an acid-treated molecular sieve.Type: GrantFiled: April 12, 1999Date of Patent: June 5, 2001Assignee: Rentech, Inc.Inventors: Dale R. Shackle, Benjamin Chaloner-Gill
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Patent number: 6083673Abstract: The present invention concerns an organic/inorganic developer composition comprising a regeneratable iron chelate, novel codevelopers of the phenidone type including one or more solubilizing groups that are not directly attached to the phenyl nucleus or to the pyrazolidino nucleus and optionally ascorbic acid. These compositions are particularly useful for the black-and-white development of films or photographic papers, in particular for the fast development of radiographic products.Type: GrantFiled: March 31, 1998Date of Patent: July 4, 2000Assignee: Eastman Kodak CompanyInventors: Jacques Roussilhe, Siu Chung Tsoi
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Patent number: 5766833Abstract: An image-forming process developing a previously image-exposed silver halide photographic material with an alkaline developer containing a reductone compound as a main developing agent in the presence of a 1,2,5-thiadiazole compound and/or a 2,1,3-benzothiadiazole compound, and the silver halide photographic material and the photographic developer being used for the process are disclosed. In this case, the 1,2,5-thuiadiazole compound and/or the 2,1,3-benzothiadiazole may be contained in the silver halide photographic material and/or the alkaline developer. Super high-contrast images for photomechanical process having a gamma of higher than 15 and having no pepper and less fog can be obtained.Type: GrantFiled: July 8, 1997Date of Patent: June 16, 1998Assignee: Dainippon Ink and Chemicals Inc.Inventors: Kiyoshi Suematsu, Hiroaki Muratake, Haruhiko Kaji, Naoki Obi, Yasuhiko Kojima, Yasuo Shigemitsu
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Patent number: 5686232Abstract: A novel inorganic composition for developing silver halide photographic products has improved stability in air. The composition comprises at least one oxidizable metallic ion, ethylenediamine tetraacetic acid and at least one additional complexing agent of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are each independently a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, a hydroxyl group, or a hydroxyalkyl group, R.sup.3 is --COOM wherein M is hydrogen or a counter-ion such as lithium, sodium or potassium, or --CONR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 are each independently a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, and n, p and q are independently 1, 2 or 3.Type: GrantFiled: January 23, 1997Date of Patent: November 11, 1997Assignee: Eastman Kodak CompanyInventors: Jacques Roussilhe, Claude Germain Goumont
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Patent number: 5681755Abstract: An improved method for depositing metal particles on a marker which catalyzes the reduction of metal ions from a physical developer comprising a solution of metal ions, a molar excess of complexant in respect to the metal ions and a reducing agent. Said method being preferably employed for the detection of one or more components of an aggregate formed between a least one specific binding agent and its corresponding bindable substance by labelling at least one component of said aggregate with a marker and contacting said aggregate with a physical developer, whereby under influence of the marker a metal particle is formed which can be detected. Further the invention also relates to solutions and test-kits adapted for carrying out the above mentioned method.Type: GrantFiled: June 6, 1995Date of Patent: October 28, 1997Assignee: Janssen Pharmaceutica N.V.Inventors: Marcus J. M. Noppe, Frank J. Konings
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Patent number: 5674755Abstract: An improved method for depositing metal particles on a marker which catalyzes the reduction of metal ions from a physical developer comprising a solution of metal ions, a molar excess of complexant in respect to the metal ions and a reducing agent. Said method being preferably employed for the detection of one or more components of an aggregate formed between a least one specific binding agent and its corresponding bindable substance by labelling at least one component of said aggregate with a marker and contacting said aggregate with a physical developer, whereby under influence of the marker a metal particle is formed which can be detected. Further the invention also relates to solutions and test-kits adapted for carrying out the above mentioned method.Type: GrantFiled: June 6, 1995Date of Patent: October 7, 1997Assignee: Janssen Pharmaceutica N.V.Inventors: Marcus J. M. Noppe, Frank J. Konings
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Patent number: 5656415Abstract: A novel inorganic composition for developing silver halide photographic products has improved stability in air. The composition comprises at least one oxidizable metallic ion, ethylenediamine tetraacetic acid and at least one additional complexing agent of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are each independently a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, a hydroxyl group, or a hydroxyalkyl group, R.sup.3 is --COOM wherein M is hydrogen or a counter-ion such as lithium, sodium or potassium, or --CONR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 are each independently a hydrogen atom, an alkyl group of 1 to 10 carbon atoms, and n, p and q are independently 1, 2 or 3.Type: GrantFiled: March 1, 1996Date of Patent: August 12, 1997Assignee: Eastman Kodak CompanyInventors: Jacques Roussilhe, Claude Germain Goumont
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Patent number: 5645971Abstract: The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process comprising the steps of image-wise exposing an imaging element comprising on a support a photosensitive layer comprising a silver halide emulsion and an image receiving layer containing physical development nuclei and developing said imaging element in the presence of developing agent(s) and silver halide solvent(s) using an alkaline processing liquid characterized in that said development is carried out in the presence of a meso-ionic compound. The present invention further provides an imaging element and alkaline processing liquid for use in said method.Type: GrantFiled: June 20, 1996Date of Patent: July 8, 1997Assignee: Agfa-Gevaert, N.V.Inventors: Ludo Van Rompuy, Rene De Keyzer, Jean-Marie Dewanckele, Marcel Monbaliu, Jos Vaes
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Patent number: 5260184Abstract: A method of forming a dye image in a photographic silver halide element containing a dye-providing compound and having in a layer thereof an imagewise distribution of catalytic silver which comprises the step of treating the material with a redox amplifying solution comprising a reducing agent and a redox amplification oxidant characterized in that the redox amplification oxidant is removed from the solution after use and the so-treated solution is re-used after the addition of fresh redox amplification oxidant.Type: GrantFiled: April 7, 1992Date of Patent: November 9, 1993Assignee: Eastman Kodak CompanyInventors: Peter D. Marsden, Peter J. Twist
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Patent number: 5206122Abstract: A light-stable physical developer comprising a solution of silver ions, a desensitizing agent and a reducing agent. A method for the detection of one or more components of an aggregate formed between at least one specific binding agent and its corresponding bindable substance by labelling at least one component of said aggregate with a marker and contacting said aggregate with said light-stable physical developer, whereby under influence of the marker a metal particle is formed which can be detected. Further the invention also relates to products, e.g. a test-kit adapted for carrying out the above mentioned method.Type: GrantFiled: February 28, 1991Date of Patent: April 27, 1993Assignee: Janssen Pharmaceutica N.V.Inventors: Marcus J. M. Noppe, Lucas A. M. Van Nuffel
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Patent number: 4859568Abstract: A method for recording a photographic image on an image-recording material is provided, wherein an image-recording material formed by coating at least a photographic silver halide, a polymerizable vinyl monomer, and a hydrazine derivative represented by formula (I) ##STR1## wherein X represents a hydrogen atom, an alkyl group, or a group represented by ##STR2## positioned in an ortho-, meta-, or para-position on the benzene ring; Y represents ##STR3## or --SO.sub.2 --; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represents a hydrogen atom, an unsubstituted alkyl group, or a substituted alkyl group, provided that R.sub.1 represents a hydrogen atom only when Y represents ##STR4## on a support is imagewise exposed to form a latent image in said photographic silver halide and then heated so as to polymerize said polymerizable vinyl monomer in the part having said latent image to form a polymer image therein.Type: GrantFiled: April 27, 1987Date of Patent: August 22, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Takeda, Yoshihide Hayakawa
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Patent number: 4738917Abstract: A method for processing a silver halide photographic material by processing a silver halide color photographic light-sensitive material containing at least a silver halide emulsion layer comprising a silver halide grain essentially consisting of silver chlorobromide and a binder having a swelling rate of T 1/2 of 2 sec. to 30 sec. The color developer contains a n-hydroxyalkyl-p-phenylenediamine derivative at a temperature not less than 30.degree. C. for a time not more than 150 sec. The time and temperature are effective to process the silver halide color photographic light-sensitive material without decreasing the stability of the resulting dye image.Type: GrantFiled: May 15, 1986Date of Patent: April 19, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Satoru Kuse, Kazuhiro Kobayashi, Masao Ishikawa, Masayuki Kurematsu
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Patent number: 4409307Abstract: In an electrically activatable recording (EAR) element comprising an electrically conductive support bearing (a) a first layer, and, contiguous to the first layer, (b) an electrically activatable recording layer, image formation in the electrically activatable recording layer is aided when the first layer (a) consists essentially of a compound selected from the group consisting of silver chlorides, silver bromides, silver iodides, transition metal bromides, transition metal chlorides, alkali metal chlorides, alkali metal bromides, alkali metal iodides, mixed chlorides, bromides and iodides of such metals and combinations of such compounds. The EAR element is light handleable when free of photosensitive silver halide and provides an image, after electrically activated exposure by dry development processing or by processing in a processing solution or bath.Type: GrantFiled: August 26, 1982Date of Patent: October 11, 1983Assignee: Eastman Kodak CompanyInventors: Mark Lelental, Arthur A. Rasch, David P. Sullivan
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Patent number: 4371608Abstract: A chalcogenide such as As.sub.2 S.sub.3 is coated on a substrate at a very low rate of deposition in a vacuum evaporator and is coated with a thin silver layer. The silver coated layer is exposed to illumination in a quantity insufficient to form an etchable layer by conventional techniques and the silver is increased by treatment with a silver-containing agent capable of depositing silver on the image, preferably in the presence of radiation. NaAgSO.sub.3 is a presently preferred agent. The resulting image-bearing layer is photo-doped by exposure to band-gap radiation and the member is then etched.Type: GrantFiled: June 22, 1981Date of Patent: February 1, 1983Assignee: Ionomet CompanyInventor: Amitabha Das
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Patent number: 4258128Abstract: Nonpolar, organic solvent-soluble tellurium compounds and complexes are disclosed. The compounds are tellurium(II) compounds and are represented by the formula:Te----CH.sub.2).sub.n SiRR'R"].sub.2wherein:n is an integer from 1 to 10 andR, R' and R" are independently selected from the group consisting of alkyl, aryl and neterocyclic radicals. Photosensitive complexes of these compounds with transition metals, as well as photographic elements having layers comprising these complexes, are also disclosed.Type: GrantFiled: December 1, 1978Date of Patent: March 24, 1981Assignee: Eastman Kodak CompanyInventor: Henry J. Gysling
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Patent number: 4251623Abstract: Tellurium images are formed by the decomposition of tellurium (II) coordination complexes in the presence of a catalyst. The complexes are characterized in that at least one of the four coordination positions of the tellurium (II) is occupied by a sulfur containing ligand. Preferred ligands that can be coordinated with tellurium are sulfur containing bidentate anionic ligands. Complexes formed using these preferred ligands are more hydrolytically stable than other tellurium (II) complexes having sulfur containing ligands and yet are still capable of providing catalytic amplification.Type: GrantFiled: June 21, 1979Date of Patent: February 17, 1981Assignee: Eastman Kodak CompanyInventor: Henry J. Gysling
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Patent number: 4239846Abstract: Disclosed are tellurium (IV) compounds represented by the formula: ##STR1## wherein: D is a Lewis base function containing a group VA or VIA donor atom;Q represents the atoms necessary to complete a 5- or 6-membered ring, when taken together with C, D and Te, when m is 1 and represents the atoms linking C and D when m is greater than 1;R.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, alkyl and aryl;X is an anion;n is 1 or 2; andm is an integer from 1 to 500.These compounds are useful in an image-forming combination comprising the described Te(IV) compound and a reducing agent. The image-forming combination is useful in a variety of materials, including a dry amplification element.Type: GrantFiled: April 10, 1978Date of Patent: December 16, 1980Assignee: Eastman Kodak CompanyInventors: Henry J. Gysling, Sylvia A. Gardner
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Patent number: 4230788Abstract: A method of making an electrically conducting metal pattern on a superficially non-conducting support which comprises imagewise exposing to light a photosensitive material containing either a diazosulfide or a diazosulfonate, which produces a light reaction product which is capable of forming free silver and mercury metal from water-soluble silver and mercurous compounds. A mixture of water and at least one solvent from the group consisting of chloroform, toluene, ethylacetate, liquid alcohols and ketones is used in the treatment of the exposed photosensitive material to form a latent image.Type: GrantFiled: October 11, 1978Date of Patent: October 28, 1980Assignee: U.S. Philips CorporationInventors: Elisabeth J. Spiertz, Christiaan F. W. Flinsenberg, Leendert K. H. van Beek
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Patent number: 4178180Abstract: Copper physical development using certain heterocyclic ligand copper(I) complexes which are resistant to aerial oxidation is disclosed. The copper(I) complexes can be represented by the formulaL(CuX).sub.mwherein L is a monodentate or bidentate heterocyclic ligand, X is an anion and m is the integer 1 or 2. The described physical development compositions can operate in either the disproportionation mode, in which case the composition further comprises, in addition to the copper(I) complex, a ligand for copper(II); or in the reduction mode, in which case the composition further comprises a reducing agent and preferably a base. Generally, nuclei of metals from group VIII and IB of the periodic table are catalytic for the deposition of copper from these compositions. The nuclei can be imagewise formed by exposing an electromagnetic radiation sensitive compound. Physical development formulations, processes and elements are disclosed.Type: GrantFiled: December 8, 1978Date of Patent: December 11, 1979Assignee: Eastman Kodak CompanyInventor: Richard S. Vinal