Imaged Product Patents (Class 430/9)
  • Patent number: 5604073
    Abstract: In a bi-layer lift-off process, the adhesion characteristics of a PMGI release layer are substantially improved by the use of ortho-hydroxy substituted 4-phenylazo compounds (azo dyes), a class of nonactinic dyes, as an adhesion promoter additive. These azo dyes, due to their chemical structure, exhibit selective binding to various metals by acting as a chelating ligand to the metal surface. Formulations of a specific azo dye, Sudan Orange G, at concentrations from 0.25 to 1.0 percent (by weight) in PMGI exhibits no loss of adhesion at prebake temperature in the range of 120 to 160 degrees C.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: February 18, 1997
    Assignee: International Business Machines Corporation
    Inventors: Mohamad T. Krounbi, Alfred F. Renaldo, Douglas J. Werner
  • Patent number: 5593814
    Abstract: A device for controlling cell arrangement having a pattern composed of a cell adhesive surface and a cell non-adhesive surface, which has a good selectivity of cell adhesion and which can provide a fine pattern of cells in high resolution by culturing cells in a usual manner.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: January 14, 1997
    Assignee: Kanegafuchi kagaku kogyo Kabushiki Kaisha
    Inventors: Takehisa Matsuda, Kazuhiko Inoue, Nobutaka Tani
  • Patent number: 5510216
    Abstract: The invention is directed to a process for patterning a substrate in a selective pattern. In one embodiment, the process comprises the steps of forming a patterned coating over a substrate surface whereby portions of the substrate are covered by the patterned coating and portions of the substrate remain uncoated. A layer of a ligating material is coated over at least those portions of the substrate free of the patterned coating. The ligating layer is one that is capable of ligating with an electroless metal plating catalyst. The article so formed is then contacted with an electroless metallization catalyst and then with an electroless plating solution to form a patterned metal deposit on the substrate.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: April 23, 1996
    Assignee: Shipley Company Inc.
    Inventors: Gary S. Calabrese, Jeffrey M. Calvert, Mu-San Chen, Walter J. Dressick, Charles S. Dulcey, Jacque H. Georger, Jr., John F. Bohland, Jr.
  • Patent number: 5503963
    Abstract: A process for manufacturing an optical data storage disk stamper includes the steps of providing a chemically vapor-deposited, silicon carbide substrate having a toughness of about 4.5 MPa.sqroot. m, a roughness of about 1 nm, and a flatness of about 6 .mu.m and depositing a negative photoresist on a surface of the substrate. The substrate has a diameter greater than about 120 mm and a thickness greater than about one mm. The negative photoresist then is exposed with a laser to form a negative, data pattern in the photoresist. The photoresist is developed, and the ceramic substrate is ion machined to form the data pattern, in the substrate, such that a spiral track of ridges and lands is formed wherein each ridge has a height of about in a range of 20 to 200 nm. After the data pattern has been ion machined into the substrate, the developed photoresist is stripped from the substrate.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: April 2, 1996
    Assignee: The Trustees of Boston University
    Inventor: Thomas G. Bifano
  • Patent number: 5496668
    Abstract: In the formation of microstructures, a preformed sheet of photoresist, such as polymethylmethacrylate (PMMA), which is strain free, may be milled down before or after adherence to a substrate to a desired thickness. The photoresist is patterned by exposure through a mask to radiation, such as X-rays, and developed using a developer to remove the photoresist material which has been rendered susceptible to the developer. Micrometal structures may be formed by electroplating metal into the areas from which the photoresist has been removed. The photoresist itself may form useful microstructures, and can be removed from the substrate by utilizing a release layer between the substrate and the preformed sheet which can be removed by a remover which does not affect the photoresist. Multiple layers of patterned photoresist can be built up to allow complex three dimensional microstructures to be formed.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: March 5, 1996
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Henry Guckel, Todd R. Christenson, Kenneth Skrobis
  • Patent number: 5478614
    Abstract: A radiation thermally imageable, solid toner addressable article comprises a substrate having on at least one surface thereof a layer comprising a) a solid binder which can be converted to a supercooled liquid upon heating and subsequent cooling to room temperature, b) a dye which absorbs radiation (at the wavelength of the imaging device,, e.e., ultraviolet, visible [especially the red], and infrared wavelengths) and converts infrared radiation to thermal energy, and c) a fluorinated surfactant. A directly thermally addressable article does not require the radiation absorbable dye.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: December 26, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David A. Morgan, Jon A. Bjork
  • Patent number: 5314772
    Abstract: A high resolution, multi-layer resist for use in microlithography and a method is disclosed. The resist consists of a planarized layer deposited onto a substrate and an active layer, consisting of arsenic sulfide and silver is deposited onto the planarized layer. Irradiation with light, or other source of irradiation causes the silver to ionically diffuse into the arsenic sulfide, thereby creating a non-phase separate ternary chalcogenide glass. Removal of either the reacted or unreacted ternary compound will provide a positive or negative mask which may be used in subsequent processing or left as an intermetal dielectric as part of the underlying circuitry.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: May 24, 1994
    Assignee: Arizona Board of Regents
    Inventors: Michael N. Kozicki, Shao-Wen Hsia
  • Patent number: 5286619
    Abstract: A silver halide photographic light-sensitive material excellent in antistatic property and evelopment uniformity is provided, comprising a support having on one side thereof hydrophilic colloidal layers including a silver halide emulsion layer, which is exposed and processed with an automatic processing machine, wherein at least one of the hydrophilic layers contains a water-soluble polymer represented by formula [I] or a water-soluble polymer having a repeating unit represented by formula [II], and a nonionic surfactant represented by formula [IIIa], [IIIb] or [IIIc].
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: February 15, 1994
    Assignee: Konica Corporation
    Inventor: Nobuaki Tsuji
  • Patent number: 5185225
    Abstract: The present invention relates to a letterpress for transferring on which a dot-like fine form plate surface is formed closely resembling a photoimage, and to a method of transferring by use of the letterpress for transferring. The letterpress is formed by exposing a photosensitive resin through a photofilm to a parallel light to harden the film of the photosensitive resin corresponding to the lightscreening area of the photofilm. The area of the photo resin other than the hardened film is then removed by rinsing with water to form the letterpress which has a convex corresponding to the light-penetrating area of the photofilm. The convex is then directly coated with various dyes and press printed on and transferred to a transfer material, or the convex is coated with a photosensitive resin and press printed on a transfer material.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: February 9, 1993
    Inventor: Kuninobu Kurumisawa
  • Patent number: 5155013
    Abstract: A photographic material causing less curvature and feasible for rapid processing is disclosed. The photographic material comprises a light-sensitive silver halide emulsion layer on one side on a support and a backing layer on the other side, wherein T.sub.E /T.sub.B, the ratio of the total dry layer thickness T.sub.E of the side having the silver halide emulsion layer to the total dry layer thickness T.sub.B of the side having the backing layer, is not less than 0.8 and not more than 1.5, and the amount of water absorbtion of the side of having the silver halide emulsion layer is not more than 8.5 g/m.sup.2.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: October 13, 1992
    Assignee: Konica Corporation
    Inventors: Haruhiko Sakuma, Satoru Nagasaki
  • Patent number: 5153097
    Abstract: The invention provides a light-sensitive material for making lithographic printing plate through high-intensity short-time exposure which comprises a support and, provided thereon, at least a silver halide emulsion layer and a physical development nuclei layer wherein an intermediate layer comprising a water-permeable film forming polymer is provided between the emulsion layer and the nuclei layer. Furthermore, a process for making a lithographic printing plate from said light-sensitive material is provided which comprises subjecting the light-sensitive material to imagewise exposure of high intensity short time, silver complex diffusion transfer development and subsequently treatment with an oxidizing agent for silver and an oleophilic organic compound.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: October 6, 1992
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Hiroshi Nishinoiri, Yoshikazu Takaya, Yasuo Tsubai, Toshiro Kondo
  • Patent number: 5153303
    Abstract: Fully cyclized polyimides based on aromatic tetracarboxylic acid dianhydrides with substitution in the positions ortho to the bridging moiety and aromatic diamines, exhibiting solubility in organic solvents, increased glass transition temperatures, low coefficients of thermal expansion and photoimagability; said polyimides being suitable for the production of films, protective coatings and photolithographic relief images.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: October 6, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Stanley J. Jasne, Pasquale A. Falcigno
  • Patent number: 5147742
    Abstract: A photomask for an ultraviolet light with a contrast of 10 or larger can be fabricated by generating a color center by irradiating a calcium fluoride crystal substrate with a KrF excimer laser (wavelength of 248 nm) with an energy of 10 J/cm.sup.2 through an original photomask formed by a chromium film on a quartz substrate and forming a pattern by a color center corresponding to an original photomask pattern. In the same way, a similar photomask can be fabricated by irradiating a calcium fluoride crystal substrate with X-rays having a wavelength ranging from 0.5 to 1.0 nm through an original mask formed by a gold film on the silicon substrate.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: September 15, 1992
    Assignee: Fujitsu Limited
    Inventors: Yasutaka Ban, Kazuo Tokitomo
  • Patent number: 5098805
    Abstract: There is provided a color photograph improved in preservability that has been obtained by making chemically inactive the aromatic amine type color developing agents and their oxidized product that remains in the silver halide photographic materials after color development processing. The color photograph exhibits excellent performance in that its white background can be prevented from discoloring even during long-term storage or display, and deterioration of a dye image caused by the remaining color developing agent being taken into the photographic material after the color development, bleaching, and fixing processes, or due to its oxidized product, can be prevented.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: March 24, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Osamu Takahashi, Masakazu Morigaki
  • Patent number: 5075196
    Abstract: A halftone dot image pattern is formed on a support comprising a paper base, a polyolefin layer on at least one side of said paper base in a coverage in the range of 5 to 40 g/m2, on the opposite side of the polyolefin layer a binder layer comprising a hydrophilic colloid binding agent and white titanium dioxide pigment particles having an average grain size in the range of 200 nm to 450 nm, said pigment particles being present in a coverage of at least 0.5 g per m2 up to 300% by wt of the total binder contents. The half tone dot image pattern is on the exterior side of the binder layer and is a halftone relief image pattern having at least color pigmented gelatin-containing layer, preferably three or four such layers of different colors; e.g., cyan, magenta, yellow and optionally black. The resultant halftone material has a controlled visual appearance; e.g., for color proofing purposes, especially with respect to dot gain.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: December 24, 1991
    Assignee: Agfa-Gevaert N.V.
    Inventors: Eddie R. Daems, Luc H. Leenders
  • Patent number: 5068166
    Abstract: A method of producing a self-supporting film carrying a positive photographic image is provided, comprising splitting an image-carrying positive photographic film in a manner known per se and removing remaining adhering paper residues from the image part and using the so obtained image part as the self-supporting film having thickness of less than 50 .mu.m. Also embodiments are shown for carrying out this process continuously.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: November 26, 1991
    Inventor: Boogaards-KoHenriette S.
  • Patent number: 5068171
    Abstract: The present invention relates to a silver halide color photographic light sensitive material comprising a support and at least one silver halide emulsion layer on the support, wherein the material contains (1) at least one 5-pyrazolone coupler represented by formulas (II) or (III): ##STR1## and (2) at least one compound selected from the group consisting of compounds represented by formulas (AI), (AII) and (AIII):R.sub.1 --A--.sub.n X (AI) ##STR2##R--Z (AIII)wherein the substituents are as defined in the text of the specification.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: November 26, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto
  • Patent number: 4818649
    Abstract: Method and apparatus for intensification and reflective read-out of underexposed films, radiographs, and the like are shown which include means for converting a metallic silver particle image to a highly reflective image. The film containing the highly reflective image is placed in a black-walled cavity which may contain a particle-free liquid, such as water. The image is raster scanned by a laser beam, and light reflected from the image is detected by a photomultiplier. The photomultiplier output is digitized and the digitized signal is stored for subsequent computer enhancement and display.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: April 4, 1989
    Assignee: SRI International
    Inventors: Ivor Brodie, Malcolm Thackray
  • Patent number: 4798782
    Abstract: This invention relates to poly(acetylene) films having localized zones of a material other than poly(acetylene) with modified optical and electrical properties. The films are formed by selectively irradiating discrete areas of a film of a precursor polymer followed by heating of the irradiated precursor polymer to transform the non-irradiated areas into poly(acetylene). The resultant product has localized zones of modified electrical and optical properties which are useful in the semiconductor industries and in optical devices.
    Type: Grant
    Filed: January 15, 1987
    Date of Patent: January 17, 1989
    Assignee: The British Petroleum Company p.l.c.
    Inventor: Philip C. Allen
  • Patent number: 4626497
    Abstract: A light-sensitive recording material which provides polymer images and contains, on a base, a layer of a photocrosslinkable polymer with an average molecular weight of 10.sup.3 to 10.sup.6, the copolymer having been prepared from(1) a (meth)acrylate, (meth)acrylamide or vinyl ether derivative which contains at least one maleimide group of the formula ##STR1## in which R.sub.1 and R.sub.2 are each alkyl having 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 together with the carbon atoms to which they are bonded form a 5-membered or 6-membered carbocyclic ring,(2) an ethylenically unsaturated comonomer containing acid groups, this comonomer being present in an amount of at least 18 percent by weight, based on the total amount of the comonomers, and, optionally,(3) at least one further ethylenically unsaturated comonomer which differs from the comonomers (1) and (2).
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: December 2, 1986
    Assignee: Ciba-Geigy AG
    Inventors: Martin Roth, Beat Muller, Joseph Berger, Peter Loew
  • Patent number: 4622285
    Abstract: Oligomeric and/or polymeric polyoxazole and polythiazole precursors can be prepared with high purity, i.e., especially without chloride, in a simple manner if an aromatic and/or heterocyclic dihydroxy, dialkoxy or diaryloxydiamino compound or a corresponding dithio compound is reacted with a dicarboxylic acid in the presence of a carbodiimide. The precursors prepared in this manner are suitable, for instance, for the manufacture of protection and insulating layers.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: November 11, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hellmut Ahne
  • Patent number: 4579754
    Abstract: A multilayer identification card in which information in the form of patterns, letters, numbers and/or pictures is inscribed by means of a laser recorder in a laser transformable layer of the identification card which is made of plastic and is transparent in the visible spectral range.The material of this laser transformable layer is adapted to the laser recorder in such a way that it absorbs the laser energy strongly enough in the wavelength of the laser beam transformations such as discoloration, microbubble formation, etc., take place locally in the material, rendering the applied information very clearly visible and immune to falsification in the otherwise transparent layer. This layer which bears the information can either be designed as a transparent identification card cover layer or be covered by another plastic layer which is transparent both visually and for the laser recorder.
    Type: Grant
    Filed: December 3, 1982
    Date of Patent: April 1, 1986
    Inventors: Thomas Maurer, Joseph Lass, Hans-Jurgen Holbein
  • Patent number: 4499165
    Abstract: A solid, nonpolymeric amorphous mixture of compounds which is useful as a binder in optical recording layers and elements is disclosed. The mixture comprises at least two different compounds each having at least two linking components joining one multivalent organic nucleus with at least two organic nuclei wherein at least one of the multivalent organic nucleus and the organic nuclei is multicyclic. Methods for making such mixtures are also disclosed.
    Type: Grant
    Filed: March 9, 1983
    Date of Patent: February 12, 1985
    Assignee: Eastman Kodak Company
    Inventor: Michel F. Molaire
  • Patent number: 4488864
    Abstract: There is disclosed an improved integral optical device of the type produced by creating optical patterns in porous glass bodies, especially patterns involving gradient refractive index distributions. The optical strength of an element, such as a lens, in such an optical pattern is increased by treatment with a polymerizable, organo functional silicone fluid while the matrix glass is sealed.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: December 18, 1984
    Assignee: Corning Glass Works
    Inventors: Nicholas F. Borrelli, Thomas H. Elmer, David L. Morse, Paul A. Sachenik
  • Patent number: 4487826
    Abstract: A diazotype heat development recording medium of the present invention has excellent shelf life and heat sensitivity. The medium comprises a support and a recording layer which is formed on said support and which comprises a diazo compound, a coupler, an acid stabilizer, a thermal developer, and a polymeric binder. The thermal developer is a salt of an organic or inorganic acid having a primary dissociation constant of 2.times.10.sup.-1 to 1.times.10.sup.-4 and an alkyl-substituted guanidine represented by the general formula: ##STR1## (wherein at least one of R1 and R2 is an alkyl group of C.sub.8 to C.sub.24, and the other of R1 and R2 is a hydrogen atom or an alkyl group of C.sub.1 or more).
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: December 11, 1984
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Niro Watanabe, Shiro Nemoto, Hiroyuki Yasujima, Kaneki Yoshida
  • Patent number: 4482608
    Abstract: Coating for infrared transparency films and thermally imageable films and films prepared with such coating. The coating comprises a copolymer formed from (a) at least one fluorocarbon monomer and (b) at least one monomer which imparts hardness to the copolymer. The coating serves to prevent the transfer of toner powder from an original which is in actuality an electrophotographic copy to the transparency film. The copolymer may contain from about 12 percent to about 85 percent fluorocarbon monomer, the remainder being the monomer which imparts hardness to the coating. Suitable monomers for imparting hardness to the copolymer include acrylates, methacrylates, acrylamides, methacrylamides, acrylonitriles, methacrylonitriles, and styrenes.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: November 13, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Russell R. Isbrandt, Robert D. Lowery
  • Patent number: 4478639
    Abstract: An apparatus and method of producing a parallax stereogram, i.e., free vision stereogram, and particularly for the accurate registration of a plurality of film images in order to ensure stereographic reproduction. The images on a film strip are optically viewed to establish homologous points for each film frame image. In one embodiment two images are optically superimposed to establish a stereo base distance. Each film frame is marked in accordance with the homologous points or stereo base distance. The marking may be mechanical or optically generated. Each film frame is thereafter aligned or sensed while in an enlarger, the marks establishing the accurate registration of eaach frame. Each film frame is exposed onto a photosensitive material using a movable line grid. A lenticular screen is superimposed over the developed picture to form the stereoscopic photograph.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: October 23, 1984
    Assignee: Three Dimensional Photography Corporation
    Inventors: Edgar C. Smith, James B. Campbell
  • Patent number: 4463074
    Abstract: Radiation is directed toward a support through an ordered array of lateral walls to form interlaid radiation-exposed and shadowed microareas on the support. A first composition is then located on the support in either the shadowed or unshadowed microareas. At least one additional composition is then positioned on the support in laterally displaced microareas forming an interlaid pattern with the first microareas.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: July 31, 1984
    Assignee: Eastman Kodak Company
    Inventors: Hugh S. A. Gilmour, Richard N. Blazey
  • Patent number: 4459350
    Abstract: A 6-substituted-2,4-bis(trichloromethyl)-s-triazine stabilizer precursor which has a maximum absorption wavelength greater than 320 nanometers and is thermally stable at temperatures up to 150.degree. C. provides improved post-processing stability in a photothermographic silver halide material designed for dry physical development. Such a photothermographic material comprises photographic silver halide and an image forming combination comprising (i) an organic silver salt oxidizing agent, with (ii) a reducing agent for the organic silver salt oxidizing agent. A developed visible image is provided after imagewise exposure by uniformly heating the photothermographic material to moderately elevated temperatures.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: July 10, 1984
    Assignee: Eastman Kodak Company
    Inventor: Wojciech M. Przezdziecki
  • Patent number: 4434217
    Abstract: A layer of a chalcogenide glass resist material, on a substrate on which a microlithographic pattern is to be formed, has a deposit of silver halide on its outer surface. By actinic irradiation a latent silver image replicating the desired pattern is formed in the halide deposit. This image is developed to a metallic silver, which is used to photodope the resist material for subsequent etching to produce the microlithographic pattern on the substrate. Positive and negative patterns are possible from the same starting laminate. One form of a microlithograhic pattern is a mask for producing electronic circuits.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: February 28, 1984
    Assignee: GCA Corporation
    Inventors: Joseph I. Masters, Gershon M. Goldberg
  • Patent number: 4423126
    Abstract: A new color-forming 4-(4'-secondary or tertiary-amino)anilino-1-carboxamidonaphthalene dye precursor in a photographic material and process enables formation of a dye image by means of cross-oxidation without the need for a coupling reaction. The color-forming 4-(4'-secondary or tertiary-amino)anilino-1-carboxamidonaphthalene dye precursor is useful in a photographic silver halide material for producing (i) a dye image, or (ii) a dye image and silver image. The exposed photographic material is processed to produce (a) a positive dye image, (b) a negative dye and negative silver image, (c) a negative dye image or (d) a positive dye image and a positive silver image. New naphthoquinoneimide dyes are also described.
    Type: Grant
    Filed: May 27, 1982
    Date of Patent: December 27, 1983
    Assignee: Eastman Kodak Company
    Inventors: James E. Klijanowicz, Csaba A. Kovacs
  • Patent number: 4390606
    Abstract: A color-forming para-sulfonamidodiphenylamine dye precursor in a photographic material and process enables formation of a sulfonimide dye image by means of cross-oxidation without the need for a coupling reaction. The color-forming para-sulfonamidodiphenylamine dye precursor is useful in a photographic silver halide material for producing (i) a dye image, or (ii) a dye image and silver image. The exposed photographic material is processed to produce (a) a positive dye image, (b) a negative dye and negative silver image, (c) a negative dye image or (d) a positive dye image and a positive silver image.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: June 28, 1983
    Assignee: Eastman Kodak Company
    Inventors: Rolf S. Gabrielsen, Patricia A. Graham, James E. Klijanowicz, Max H. Stern
  • Patent number: 4368246
    Abstract: In a photographic material for producing a dye image or a dye image and silver image comprising (1) a photographic metal salt, such as photographic silver halide, and (2) a dye precursor, improved images are provided by means of a color-forming para-sulfonamidodiphenylamine dye precursor having one to two sulfonamido groups in positions ortho to the --NH-- moiety separating the two phenyl groups of the sulfonamidodiphenylamine and wherein the sulfonamidodiphenylamine, in oxidized form, intramolecularly reacts to produce a sulfonamido-substituted phenazine dye. An exposed photographic material containing the color-forming sulfonamidodiphenylamine dye precursor is processed to produce a negative phenazine dye-enhanced silver image. Alternatively, the exposed photographic material is processed to produce a positive phenazine dye image.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: January 11, 1983
    Assignee: Eastman Kodak Company
    Inventors: Rolf S. Gabrielsen, Patricia A. Graham, James E. Klijanowicz
  • Patent number: 4362795
    Abstract: 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: Grant
    Filed: August 29, 1980
    Date of Patent: December 7, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junkichi Ogawa, Minoru Yamada, Tsutomu Hamaoka
  • Patent number: 4362796
    Abstract: The present invention relates to a photographic print and process of making the same wherein the print presents highlights by a build-up of high reflective, e.g. specularly reflective, metal in the highlighted areas which would otherwise print as blank or very light-toned areas of exposed paper or film. The gradient areas are preferably defined by spaced, specularly reflective areas optionally interspersed with conventional deposit of particulate silver. The method of fabricating such article includes an initially conventional development step, followed by a second development step wherein the silver halide areas remaining after the first development step are converted into increments of specularly reflective silver. An etching step may be interposed between the conventional development step and the development step leading to the creation of specular areas.
    Type: Grant
    Filed: June 11, 1981
    Date of Patent: December 7, 1982
    Inventor: Robert Monroe
  • Patent number: 4343879
    Abstract: A laser recording medium consisting of shiny silver particles in a colloid matrix having at least one superposed layer of colloid matrix containing dispersed metal particles other than silver to lower the reflectivity of the medium.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: August 10, 1982
    Assignee: Drexler Technology Corporation
    Inventors: Jerome Drexler, Eric W. Bouldin
  • Patent number: 4332882
    Abstract: The present invention relates to a method for the preparation of highly heat-resistant relief structures by applying radiation-sensitive soluble polymer precursor stages in the form of a film or a foil to a substrate; irradiating the film or the foil through negative patterns with actinic light or by deflecting a light, electron or ion beam; removing the non-irradiated film or foil portions; and optionally, by subsequent annealing; as well as to the use of the relief structures made in this manner. It is provided for this purpose to use precursor stages of polyimidazoles and polyimidazopyrrolones in the form of addition products of olefinically unsaturated monoepoxides on amino group-containing polycondensation products of aromatic and/or heterocyclic tetraamino compounds with dicarboxylic-acid chlorides or esters, or on amino group-containing polyaddition products of the tetraamino compounds and tetracarboxylic-acid dianhydrides.
    Type: Grant
    Filed: August 19, 1980
    Date of Patent: June 1, 1982
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hellmut Ahne, Eberhard Kuhn, Roland Rubner
  • Patent number: 4332883
    Abstract: Disclosed herein is a method for the preparation of highly heat-resistant relief structures by applying radiation-sensitive soluble polymer precursor stages in the form of a layer or a foil to a substrate; irradiating the layer or foil through negative patterns with actinic light or by deflecting a light, electron or ion beam; removing the non-irradiated layer or foil portions and, optionally, subsequently annealing, as well as to the use of the relief structures made in this manner. An object of the invention is to broaden the supply of highly heat-resistant relief structures, and for this purpose it is provided to use precursor stages of polyoxazoles in the form of addition products of olefinically unsaturated monoepoxides on hydroxyl group-containing polycondensation products of aromatic and/or heterocyclic dihydroxy diamino compounds with dicarboxylic-acid chlorides or esters.
    Type: Grant
    Filed: August 19, 1980
    Date of Patent: June 1, 1982
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hellmut Ahne, Eberhard Kuhn, Roland Rubner, Erwin Schmidt
  • Patent number: 4326018
    Abstract: An improved lithographic printing plate prepared by exposing a lithographically suitable photosensitive sheet material through a mask or transparency, to radiation, developing the exposed sheet to remove unexposed light sensitive material and post-curing the developed sheet by exposure to high intensity radiation or air-baking at high temperatures.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: April 20, 1982
    Assignee: Polychrome Corporation
    Inventor: Paul Jargiello
  • Patent number: 4316946
    Abstract: Surface sensitization of a chalcogenide glass is achieved by depositing an extremely thin silver layer, for example, by depositing a silver halide and developing and fixing in the absence of exposure. The sensitized chalcogenide can then be exposed to light to make it etch-resistant. Further exposure reverses the etch resistance, permitting positive or negative images and permitting erasure. Microlithographic resists such as masks can be formed.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: February 23, 1982
    Assignee: Ionomet Company, Inc.
    Inventors: Joseph I. Masters, Gershon M. Goldberg, Jerome M. Lavine
  • Patent number: 4299894
    Abstract: Electrically photosensitive materials and elements comprising an electrically photosensitive compound of the structure: ##STR1## wherein: n represents zero, 1 or 2;Y represents 0 or S;Z represents 0 or NR in which R represents hydrogen, alkyl, aryl or aralkyl;R.sup.1, R.sup.2 and R.sup.3, which are the same or different, represent hydrogen, alkoxy, hydroxy, alkyl, aryl, alkylcarboxy or arylcarboxy; or R.sup.1 and R.sup.3 taken together with the carbon atoms to which they are attached provide sufficient atoms to complete a carbocyclic ring of 6-14 carbon atoms;R.sup.4 represents hydrogen or cyano; andA represents a nitrogen containing basic heterocyclic nucleus of the type used in cyanine dyes are useful in photoelectrophoretic imaging processes.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: November 10, 1981
    Assignee: Eastman Kodak Company
    Inventors: Thomas R. Klose, Frank G. Webster
  • Patent number: 4293625
    Abstract: Photolithographic receptor sheet comprising a support having an anchor layer thereon comprising rutile crystalline titanium dioxide having an oxide surface treatment of at least about 10 percent by weight, the major proportion of which is the oxide of silica, and a layer of hydrophilic colloidal silica overlying said anchor layer.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: October 6, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Joseph F. Myers
  • Patent number: 4282314
    Abstract: A mask for selectively transmitting therethrough a desired light radiant energy is disclosed. The mask comprises a stress-relieved, essentially dimensionally stable base, comprising a copolymer of tetrafluoroethylene and hexafluoropropylene, which is capable of transmitting therethrough the light radiant energy. A blocking film is deposited on at least a portion of the base for blocking the transmission of the light radiant energy through the portion of the base.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: August 4, 1981
    Assignee: Western Electric Co., Inc.
    Inventors: Donald Dinella, Ching-Ping Wong
  • Patent number: 4281049
    Abstract: Disclosed is a color separation transparency of a partial image in one of the primary colors blue, green, yellow or red or in black or white color or in a secondary color, which comprises the partial image in a negative of the color separation transparency being transparent in the particular primary or secondary color, and the areas of the color separation transparency outside the part image being opaque. Also disclosed is a process for preparing the color separation transparencies according to the invention.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: July 28, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Roland Moraw
  • Patent number: 4269917
    Abstract: 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: Grant
    Filed: July 14, 1980
    Date of Patent: May 26, 1981
    Assignee: Drexler Technology Corporation
    Inventors: Jerome Drexler, Eric W. Bouldin
  • Patent number: 4252879
    Abstract: An image recording material formed with a support, a photosensitive composition layer formed on the support, and a mono-particle layer of solid particles of different optical transmittances formed on the photosensitive composition layer. When the recording material is exposed to light, the firmness with which the photosensitive composition holds the solid particles varies locally from point to point in accordance with the exposure energies of light passed through the solid particles. Thus by causing the dissolving force of the solvent or other physical forces to act on the photosensitive composition, the particles held weakly are selectively removed from the recording material, whereby an image is formed by the particles left on the recording material. The recording material on which the image has been formed can be used as a printing form as it is or by being subjected to simple after-treatment.
    Type: Grant
    Filed: August 3, 1979
    Date of Patent: February 24, 1981
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Eiichi Inoue, Masanori Akada
  • Patent number: 4251609
    Abstract: Electrophotosensitive materials having the structure ##STR1## wherein R represents a basic heterocyclic nucleus as well as groups such as hydrogen, alkyl, aryl, aralkyl, etc.;A.sub.1 represents a wide variety of basic heterocyclic nuclei;A.sub.2 represents aryl or may be the same as A.sub.1 ;G represents O or S;M is 0 to 3;N is 0 to 1; andL.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 represetn hydrogen, alkyl or aryl.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: February 17, 1981
    Assignee: Eastman Kodak Company
    Inventors: James R. Nonnemacher, Michael T. Regan, Frank G. Webster
  • Patent number: 4242428
    Abstract: An inorganic system of color photography in which colored images are recorded with compositions comprising a mixture of an iridescent pigment of the type displaying an interference-reinforced reflection color, and finely divided particles of a photosensitive material, such as a silver halide, which can be developed to give black or other light absorbing particles which will absorb light wavelengths complementary to the interference-reinforced reflection color of the iridescent pigment. The system does not require organic dyes in the final image, which is highly light-stable, and uses much smaller amounts of silver than conventional black and white photography.
    Type: Grant
    Filed: October 21, 1977
    Date of Patent: December 30, 1980
    Inventor: Chester Davis
  • Patent number: 4241153
    Abstract: Negative and positive films for use in multi-color printing are prepared by a process which utilizes crystals and interstices therebetween in color-separation negatives for multi-color printing without the use of half-tone screens. Exposure through masks of controlled density ranges relative to the color-separation negatives and positives prepared from the color original result in final negatives and positives as well as duplication negatives and positives which can be utilized in the multi-color printing process.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: December 23, 1980
    Assignee: AB Bates a/s
    Inventor: Vjatsjeslev Rovnjev
  • Patent number: 4216286
    Abstract: Cloth, such as cotton, burlap, or canvas, has a photographic emulsion laminated thereto, along with an outer protective film. The composite laminate formed is permanent, and sufficiently firmly affixed to the cloth that the cloth is machine washable without substantial damage or alteration of the laminated image. The method of making the cloth laminated with photographic emulsion comprises applying the photographic emulsion facedown on a protective film, coating with adhesive and applying the cloth, drying the emulsion and cloth and pressing between plates, at least one of which is heated. By dipping the emulsion in a stripping solution prior to applying to the protective film, adherence and permanence of the laminate formed is substantially increased.
    Type: Grant
    Filed: September 7, 1978
    Date of Patent: August 5, 1980
    Inventors: J. Jerrold Greene, Avrom Keller