Processing Permanent Laminate Patents (Class 430/246)
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Patent number: 9874815Abstract: A method for forming a structure for a radio frequency identification device includes dispensing a photosensitive compound onto a substrate. Subsequently, first portions of the photosensitive compound are exposed to a light pattern from a light source, while second portions of the photosensitive compound remain unexposed to the light source. Exposing the photosensitive compound to light reduces the photosensitive compound to a metal layer. The unexposed second portions of the photosensitive compound may be rinsed away to leave the metal layer. Processing may continue to form an RFID circuit from the metal layer, and a completed RFID transponder comprising the RFID circuit.Type: GrantFiled: May 13, 2016Date of Patent: January 23, 2018Assignee: XEROX CORPORATIONInventors: Wayne A. Buchar, George A. Gibson
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Patent number: 5308738Abstract: The present invention provides a photographic material comprising on a support an image-receiving layer containing physical development nuclei, a photosensitive silver halide emulsion layer and a substantially light insensitive layer containing silver salt characterized in that said photosensitive silver halide emulsion layer contains silver halide particles having an average diameter of at least 0.6 .mu.m, said photosensitive silver halide emulsion layer being located between said image-receiving layer and said substantially light insensitive layer and said substantially light insensitive layer having a speed of at least a factor 10 less than said photosensitive silver halide emulsion layer. The present invention also provides a method for making an image therewith. The photographic material of the present invention is of high speed and can yield direct positive image with a low density in the non-image areas.Type: GrantFiled: June 5, 1992Date of Patent: May 3, 1994Assignee: Agfa-Gevaert, N.V.Inventors: Rene M. De Keyzer, Johan J. Lamotte
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Patent number: 5283157Abstract: A method for making a lithographic printing plate which comprises the steps of A) imagewise exposing a light sensitive material which comprises a support, a negative working silver halide emulsion layer and a surface physical development nucleating layer on said support, and B) processing the exposed material in a silver complex diffusion transfer developer containing a water soluble iodide to produce a non-black oleophilic silver image on the surface of said printing plate.Type: GrantFiled: March 22, 1993Date of Patent: February 1, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Paul Davies
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Patent number: 5279925Abstract: It has been found that for a SCALPEL lithographic system thermal effects dictate that the acceleration voltage for the exposing electrons be maintained within a specific range. This range depends on a variety of factors but is generally in the 50 to 150 KeV region. Additionally, thermal considerations also dictate the method of scanning the mask to print an entire wafer.Type: GrantFiled: December 16, 1992Date of Patent: January 18, 1994Assignee: AT&T Bell LaboratoriesInventors: Steven D. Berger, James A. Liddle
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Patent number: 5268253Abstract: The present invention provides a method for making a lithographic printing plate according to the DTR-process comprising the steps of:information-wise exposing an imaging element comprising on a support in the order given a photosensitive layer containing a silver halide emulsion and a layer containing physical development nuclei;developing said information-wise exposed imaging element in the presence of developing agent(s) and silver halide solvent(s)characterized in that said silver halide emulsion comprises said silver halide in an amount of at least 2 g/m.sup.2 (expressed as AgNO.sub.3), said development is carried out in the presence of a physical development restraining compound and wherein imaging elements comprising a positive working silver halide emulsion of the internal latent image type are excluded. Lithographic printing plates with substantially improved printing endurance are obtained.Type: GrantFiled: January 27, 1993Date of Patent: December 7, 1993Assignee: Agfa-Gevaert, N.V.Inventor: Ludo Van Rompuy
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Patent number: 4784933Abstract: Lithographic printing plates which have such a high sensitivity as permitting use of semiconductor laser beam of low output, a high resolving power and a high printing endurance and are free from occurrence of scumming are made by a method which comprises imagewise exposing a light sensitive material which comprises a support and at least a silver halide emulsion layer and a surface physical development nuclei layer provided on the support, said emulsion layer comprising silver halide grains which contain at least silver bromide and containing at least one sensitizing dye having a maximum spectral sensitivity in the region of longer than 700 .mu.m and then developing the exposed light sensitive material with a silver complex diffusion transfer developer containing at least a thiocyanate. Further improvement can be obtained by providing an antihalation means to keep the reflectance of a light of longer than 700 .mu.m at 13-40%.Type: GrantFiled: November 12, 1986Date of Patent: November 15, 1988Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Eiji Kanada, Yasuo Tsubai, Akira Tanaka, Toshiro Kondo, Yoshikazu Takaya, Masahiko Saikawa, Hiroshi Nishinoiri
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Patent number: 4636458Abstract: Homopolymers of para-methylstyrene and copolymers thereof with monomers such as methyl methacrylate, which polymers exhibit very low water absorption in combination with good optical and mechanical properties and are useful for making optically readable data storage disks.Type: GrantFiled: December 2, 1985Date of Patent: January 13, 1987Assignee: Rohm GmbHInventors: Franz Wenzel, Peter J. Arndt, Werner Siol
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Patent number: 4619889Abstract: An image forming method which comprises copying an original on a photosensitive material employing a direct reversal photographic emulsion is disclosed. The method comprises conducting ordinary exposure when the original image is a positive image and conducting exposure at high illuminance when the original image is a negative image. Thereby, it is possible to obtain a direct positive image from either the original positive or original negative image. The process is greatly advantageous with respect to forming positive images since the process can be utilized to obtain positive images regardless whether the original image is positive or negative.Type: GrantFiled: January 24, 1984Date of Patent: October 28, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideo Yuyama, Motohiko Tsubota
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Patent number: 4507381Abstract: A self-contained silver halide diffusion transfer imaging sheet is provided which contains three layers on a substrate. The first layer is a silver halide emulsion formed in a non-ionic material. The intermediate layer is a water barrier. The third layer is a nucleating region which contains collodial silver. A developer, base and silver transport agent can also be located in these layers. For example, the base and silver transport agent can be located in the nucleating layer, with the developer located in the emulsion layer. After the emulsion is exposed to actinic radiation, a non-aqueous activating medium is supplied which initiates the development and diffusion transfer processes. The final result is a positive image in the nucleating layer.Type: GrantFiled: April 10, 1984Date of Patent: March 26, 1985Assignee: The Mead CorporationInventors: Paul C. Adair, Homer G. Duda, Amy L. Burkholder, Richard F. Wright, Mary M. Stanley
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Patent number: 4501811Abstract: Disclosed is a process for making a lithographic printing plate by utilizing the silver complex diffusion transfer process and using a neon-helium laser or an LED which comprises imagewise exposing to the radiation a photosensitive element including an emulsion layer which is spectrally sensitized with an anion- or betaine-type meso-substituted trimethine cyanine dye having at least one .beta.-naphthothiazole nucleus and developing the element by the silver complex diffusion transfer process.Type: GrantFiled: October 13, 1983Date of Patent: February 26, 1985Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Masahiko Saikawa, Eiji Kanada, Akira Tanaka, Kazunaka Endo
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Patent number: 4476213Abstract: A self-contained silver halide diffusion transfer imaging sheet is provided which contains three layers on a substrate. The first layer is a silver halide emulsion formed in a non-ionic material. The intermediate layer is a water barrier. The third layer is a nucleating region which contains colloidal silver. A developer, base and silver transport agent can also be located in these layers. For example, the base and silver transport agent can be located in the nucleating layer, with the developer located in the emulsion layer. After the emulsion is exposed to actinic radiation, a non-aqueous activating medium is supplied which initiates the development and diffusion transfer processes. The final result is a positive image in the nucleating layer.Type: GrantFiled: December 10, 1982Date of Patent: October 9, 1984Assignee: The Mead CorporationInventors: Paul C. Adair, Amy L. Burkholder, Homer G. Duda, Richard F. Wright, Mary M. Stanley
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Patent number: 4400462Abstract: Photographic materials and photographic processes employing light sensitive silver halide particles, silver halide particles which are substantially non-light sensitive having been modified with a silver halide solubility reducing agent and internally fogged silver halide particles which are substantially non-light sensitive provide negative silver images of high contrast and high maximum density.Type: GrantFiled: June 1, 1981Date of Patent: August 23, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kouzi Ono, Mikio Kawasaki, Mariko Natori, Eiichi Sakamoto
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Patent number: 4363870Abstract: A method for making a laser recording and data storage medium by first exposing a Lippman emulsion to light in order to form a depthwise nuclei gradient, then physically developing the emulsion until a reflective surface layer of spheroid silver particles, having the desired degree of reflectivity, is attained and then chemically developing the remaining nuclei to form a dark underlayer of filamentary silver particles.Type: GrantFiled: September 11, 1981Date of Patent: December 14, 1982Assignee: Drexler Technology CorporationInventor: Eric W. Bouldin
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Patent number: 4312938Abstract: A broadband laser recording and data storage medium for direct read after writing, formed from a photosensitive silver-halide emulsion in four steps. First, a non-saturating actinic radiation exposure is used to create latent images. A normal photographic development is used to produce a medium of gray neutral density. The surface of the remaining silver halide is fogged in a water or alcohol based solution to create a very thin layer of silver precipitating nuclei on the surface. Finally, a single-step, negative silver diffusion transfer process is used to dissolve the unexposed and undeveloped silver halide, forming silver ion complexes.Type: GrantFiled: October 17, 1980Date of Patent: January 26, 1982Assignee: Drexler Technology CorporationInventors: Jerome Drexler, Eric W. Bouldin
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Patent number: 4304848Abstract: A method of replicating data from a master transmissive optical data storage medium whereby the resulting product displays areas of low reflectivity and high reflectivity. Actinic radiation is shone through transmissive areas onto a silver-halide emulsion photosensitive medium. The photosensitive medium is then chemically developed black. Next, the developed medium is fogged to create a latent image layer of silver precipitating nuclei. Finally, the fogged medium is placed in a monobath comprising a weak silver-halide reducing agent and a rapid-acting silver-halide solvent for partial chemical development and substantial physical development. The resulting product displays areas of low reflectivity, which correspond to the transmissive areas of the master, in a reflective field.Type: GrantFiled: June 4, 1980Date of Patent: December 8, 1981Assignee: Drexler Technology CorporationInventors: Eric W. Bouldin, Jerome Drexler
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Patent number: 4298684Abstract: A reflective laser recording and data storage medium, for direct reading after writing, formed from a photosensitive silver-halide emulsion including silver precipitating nuclei. A single step negative silver diffusion transfer process is used to develop silver nuclei of the latent image and dissolve unexposed silver halide elsewhere, forming silver ion complexes. These complexes are transported by diffusion transfer to the developing silver nuclei sites where silver is precipitated and adsorbed to form a high concentration of non-filamentary particles at a surface of a low melting temperature dielectric matrix which is highly reflective of light and electrically non-conducting.Type: GrantFiled: June 20, 1980Date of Patent: November 3, 1981Assignee: Drexler Technology CorporationInventors: Eric W. Bouldin, Jerome Drexler
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Photographic material for production of printing plates and method for production of printing plates
Patent number: 4297430Abstract: In production of lithographic printing plates by developing a photographic material comprising a support having thereon at least both silver halide emulsion layer and physical development nuclei layer by silver complex diffusion transfer process to form transfer silver to be used as ink-receptive portions of the lithographic printing plates, when the development is carried out in the presence of a cyclic imide compound (alone or in combination with sulfites, thiosulfates, thiocyanates or alkanolamines) as defined hereinafter, ink-receptivity of the transfer silver image portions and printing endurance of thus obtained printing plates are improved. Moreover, the non-image portions have no or substantially no stains.Type: GrantFiled: August 1, 1980Date of Patent: October 27, 1981Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Eiji Kanada, Shoji Yamada, Yasuo Tsubai -
Patent number: 4297429Abstract: Lithographic printing plates having high ink receptivity, suffuring no ink stains and having much improved printing endurance can be produced by silver complex diffusion transfer process from lithographic printing plate materials comprising a support having thereon at least both silver halide emulsion layer and physical development nuclei layer wherein the diffusion transfer processing is carried out in the presence of 2-mercaptobenzoic acid derivatives or, besides this 2-mercaptobenzoic acid derivatives, at least one compound selected from the group consisting of alkanolamines and cyclic imide compounds which may be contained in at least one layers of the lithographic printing plate materials and/or the diffusion transfer developing solutions.Type: GrantFiled: June 11, 1980Date of Patent: October 27, 1981Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Eiji Kanada, Shoji Yamada, Yasuo Tsubai
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Patent number: 4278756Abstract: A reflective laser recording and data storage medium, for direct reading after writing, formed from a photosensitive silver-halide emulsion wherein a surface latent image exposure on the recording area forms a depthwise gradient of silver nuclei. A single step negative silver diffusion transfer process is used to develop silver nuclei of the latent image and dissolve unexposed silver halide elsewhere, forming silver ion complexes. These complexes are transported by diffusion transfer to the developing silver nuclei sites where silver is precipitated and adsorbed to form a high concentration of non-filamentary particles at a surface of a low melting temperature dielectric matrix which is highly reflective of light and electrically non-conducting.Type: GrantFiled: July 6, 1979Date of Patent: July 14, 1981Assignee: Drexler Technology CorporationInventors: Eric W. Bouldin, Jerome Drexler
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Patent number: 4269917Abstract: A reflective laser recording and data storage medium, for direct reading after writing, formed from a photosensitive silver-halide emulsion wherein a surface latent image exposure on the recording area forms a depthwise gradient of silver nuclei. A single step negative silver diffusion transfer process is used to develop silver nuclei of the latent image and dissolve unexposed silver halide elsewhere, forming silver ion complexes. These complexes are transported by diffusion transfer to the developing silver nuclei sites where silver is precipitated and adsorbed to form a high concentration of non-filamentary particles at a surface of a low melting temperature dielectric colloid matrix which is highly reflective of light and electrically non-conducting.Type: GrantFiled: July 14, 1980Date of Patent: May 26, 1981Assignee: Drexler Technology CorporationInventors: Jerome Drexler, Eric W. Bouldin
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Patent number: 4267255Abstract: A processing composition adapted for use in a silver diffusion transfer film unit which comprises an aqueous alkaline solution, a silver halide developing agent and a surfactant comprising a hydrophobe and a polyethylene oxide portion containing an average of about 5-25 repeating units of ethylene oxide per hydrophobe.Type: GrantFiled: December 12, 1979Date of Patent: May 12, 1981Assignee: Polaroid CorporationInventor: Karl J. Schreiber
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Patent number: 4186005Abstract: This invention is directed to a film unit composed of a support carrying on one side a processing composition permeable layer containing an acid reacting reagent therein, and, on the other side, silver precipitating nuclei and photosensitive silver halide crystals. The above film unit is particularly suitable for use as motion picture film, i.e., in the form of an elongated web wherein said film unit is unwound, exposed, contacted with a photographic processing composition containing, e.g., a silver halide developing agent and silver halide solvent, rolling said film unit upon itself thereby contacting the processing composition permeable layer with the layers on the opposite side of the support. The acid reacting agent will diffuse into the silver halide and nuclei containing layers providing enhanced stability to the film unit.Type: GrantFiled: July 2, 1975Date of Patent: January 29, 1980Assignee: Polaroid CorporationInventors: Richard J. Haberlin, Robert K. Stephens