Element Structurally Defined Other Than Containing Nominal Processing Composition Container Or Trap, Or Containing Processing Composition Container Or Trap Made Of Identified Material Patents (Class 430/207)
  • Patent number: 4601976
    Abstract: A multilayer color photographic light-sensitive material containing no image-receiving layer is described, comprising a support, an internal latent image type direct reversal silver halide emulsion layer combined with a dye-providing substance, and a void layer between the support and the layer containing the dye-providing substance closest to the support.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: July 22, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yukio Karino
  • Patent number: 4600680
    Abstract: A transparency film assemblage of the type which includes a film mount having first and second apertured sections, a film frame of the instant type mounted on the first section in superposition to its aperture, a strip sheet mounted in superposed relation to the film frame, and a container having a supply of processing liquid which is to be spread between the sheet and the film frame, subsequent to the latter's exposure, to initiate the formation of a visible image in the film frame. The film mount is constructed to accommodate the container and/or the sheet, after the latter has been stripped from the image in the film frame which is to be subsequently viewed, such that the container and/or sheet may be sandwiched between the first and second sections when they are secured in face-to-face relation to define a fully mounted transparency ready to be placed in a projector.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: July 15, 1986
    Assignee: Polaroid Corporation
    Inventor: Peter K. Fichter
  • Patent number: 4569898
    Abstract: A photosensitive element comprising a support carrying a layer of photosensitive silver halide grains and a barrier polymer, said barrier polymer having a limited swell ratio in alkali; said barrier polymer being disposed substantially intermediate said silver halide grains and overlying said silver halide grains. In a preferred embodiment, the silver halide layer is a planar, spaced array of silver halide grains.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: February 11, 1986
    Assignee: Polaroid Corporation
    Inventor: F. Richard Cottrell
  • Patent number: 4562140
    Abstract: Disclosed is a photosensitive material which comprises a support and at least an undercoating layer and a silver halide emulsion layer, said undercoating layer containing a matting agent having an average particle size larger than the thickness of the undercoating layer. Use of this photosensitive material for diffusion transfer process causes neither slipping between the photosensitive material and the image receptive layer nor pinholes in silver images.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: December 31, 1985
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Isao Kohmura, Jun Miura, Norio Kajima
  • Patent number: 4546061
    Abstract: A film unit for an instant camera includes a photosensitive sheet connected with a leader sheet. A carrier sheet is partly superposed on the leader sheet and bonded thereto at one end, and a drawer member is bonded to the leader sheet, at one end, near the bonding portion between the carrier sheet and the leader sheet. The other end of the drawer member is projected outside the camera body when the film unit is loaded in the camera. An image receiving sheet to which an image formed on the photosensitive sheet is transferred, is connected to the other end of the carrier sheet. When the projecting end of the drawer member is pulled after exposure, the leading end of the leader sheet is pulled to be inserted between a pair of pressure rolls and to be projected outside the camera body by way of the bonding portion between the drawer member and the leader sheet, with the drawer member being peeled off the leader sheet thereafter.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: October 8, 1985
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Ono, Teruyoshi Makino, Hisashi Kikuchi
  • Patent number: 4536081
    Abstract: A method and apparatus for photographically copying a light radiating image without the aid of an optical system by placing a photosensitive media directly on the image.
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: August 20, 1985
    Inventor: Harold A. Gell
  • Patent number: 4532201
    Abstract: An imagewise exposed negative sheet (1) and a positive sheet (2) of a two-sheet diffusion material which are joined together by an adhesion strip (3), transversely to the direction of movement of the sheets (1,2), are passed for wetting in tandem through a developing liquid (6). Thereafter, the rigidity of the sheets (1,2) and the flexibility of the adhesive strip (3) are used, together with a collecting device (11) and a stop (12) for the first-wetted sheet (2) which is adjustable therein to cause an independent V-shaped folding together of the sheets (1,2) about the adhesive strip bending point (14). A deflecting device (9) is adjusted so that the V-shaped folded bending point (14) is guided into the gap between a pair of pressing rollers (10), by which it is taken up. The sheets (1,2) are pressed together and are discharged, in this condition, into a collecting tray (15) through a discharge channel (13).
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: July 30, 1985
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Immo Boie, Guido Kovacic
  • Patent number: 4508809
    Abstract: In a process and an apparatus for the exposure and development of photographic images according to the dye diffusion process a monosheet material is used, the laminated structure of which is divided by a layer which is impermeable to light but permeable to moisture into a photosensitive side of the sheet for image-wise exposure and a non-photosensitive side for observation and supplying the activator or developer solution. The said monosheet material is exposed image-wise in the dark and the photosensitive side then sealed in a light and moisture proof manner in a development apparatus in which the non-photosensitive side of the monosheet lies open and is exposed to an activator in daylight so that the image formation takes place visibly. Once the image quality has been achieved the development is stopped by removing the activator and by subsequent rinsing. The monosheet is dried in a conventional manner but only on one side.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: April 2, 1985
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Immo Boie, Hermann Luhrig, Guido Kovacic
  • Patent number: 4490456
    Abstract: Self-developing photographic film units are disclosed having an IIR sheet cut from an elongate web of material, a second sheet cut from an elongate web of material, and a mask sheet cut from an elongate web of material and spacer means between the IIR sheet and the second sheet. The mask sheet and spacer means serve to seal the IIR sheet and the second sheet together along opposite side margins thereof. A container of processing composition and a trap are disposed at opposite end margins of the film unit.The IIR sheet is strippable between a portion thereof bearing an image after processing and other components of the film unit including a non-image-bearing portion of the IIR sheet overlying the container. Preferably the stripping occurs between photosensitive layers and an image-receiving layer of the IIR sheet. The IIR sheet has a discontinuous slit between the image-bearing portion and the non-image-bearing portion.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: December 25, 1984
    Assignee: Eastman Kodak Company
    Inventor: Raymond D. Feasey
  • Patent number: 4419434
    Abstract: An image transfer film unit is disclosed in which a surface capillary layer is provided to supply processing liquid uniformly to an imaging portion of the film unit.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: December 6, 1983
    Assignee: Eastman Kodak Company
    Inventors: Michel F. Molaire, John V. Williams
  • Patent number: 4411973
    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: August 17, 1981
    Date of Patent: October 25, 1983
    Assignee: Eastman Kodak Company
    Inventors: Hugh S. A. Gilmour, Richard N. Blazey
  • Patent number: 4407929
    Abstract: In a color photographic recording material for the dye diffusion transfer process a transparent layer support, a light sensitive element, a light-reflecting opaque layer and an image-receiving layer form in that order a non-disconnectable assembly of layers and the light-sensitive element contains at least one silver halide emulsion layer and associated therewith an electron donor compound and a non-diffusing reducible color-providing compound that when reduced liberates a diffusible dye under alkaline development conditions. The material provides "development control on viewing" when the first part, e.g. about 2 minutes, of total development is conducted in dark and is completed at ambient light.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: October 4, 1983
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Immo Boie, Kaspar Wingender
  • Patent number: 4387154
    Abstract: Photographic elements, multicolor filters and receivers are disclosed having supports providing microvessels for materials such as radiation-sensitive materials, imaging materials, mordants, silver precipitating agents and materials which are useful in conjunction with these materials. Processes of forming microvessels and introducing materials therein are also disclosed. Processes of forming images are disclosed employing microvessel containing elements. Image transfer processes are disclosed for producing one or a combination of silver and multicolor subtractive primary images alone or in combination with multicolor additive primary images.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: June 7, 1983
    Assignee: Eastman Kodak Company
    Inventor: Keith E. Whitmore
  • Patent number: 4377632
    Abstract: Diffusion transfer film units and a diffusion transfer process operative therein are described which are capable of providing relatively high resolution monochromatic dye developer transfer images.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: March 22, 1983
    Assignee: Polaroid Corporation
    Inventor: William J. Pflingston
  • Patent number: 4370407
    Abstract: A photographic film unit which includes first and second superposed sheets, and is processable by distributing a liquid between the sheets, is provided with liquid directing means that present a greater resistance to liquid flow in a longitudinal direction than in a transverse direction. Transverse barrier ridges, which are small compared to the depth of the liquid, are positioned between the sheets to inhibit the flow in the predetermined direction while flow continues uninhibited or is enhanced in the transverse direction along the ridges. Other embodiments employ stripes having different degrees of hydrophobicity.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: January 25, 1983
    Assignee: Eastman Kodak Company
    Inventor: Richard L. Columbus
  • Patent number: 4366225
    Abstract: This invention relates to a device for monitoring exposure to influences, such as ionizing radiation, adverse to the human body. The device includes a support which carries material sensitive to the influence. The material is demarcated into a plurality of discrete zones each of which is processable individually by processing composition stored in a respective reservoir. Each reservoir is dischargeable individually to process its related zone. The sensitive material produces an indication visible externally of the device if the exposure to radiation has been greater than a predetermined threshold. The zones are processable at will in single succession.
    Type: Grant
    Filed: April 30, 1981
    Date of Patent: December 28, 1982
    Assignee: Eastman Kodak Company
    Inventor: James J. Kosinski
  • Patent number: 4362806
    Abstract: Photographic elements, multicolor filters and receivers are disclosed having supports providing microvessels for materials such as radiation-sensitive materials, imaging materials, mordants, silver precipitating agents and materials which are useful in conjunction with these materials. Processes of forming microvessels and introducing materials therein are also disclosed. Processes of forming images are disclosed employing microvessel containing elements. Image transfer processes are disclosed for producing one or a combination of silver and multicolor subtractive primary images alone or in combination with multicolor additive primary images.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: December 7, 1982
    Assignee: Eastman Kodak Company
    Inventor: Keith E. Whitmore
  • Patent number: 4358523
    Abstract: In a film unit for photography of the diffusive transfer process type including a photosensitive sheet, a mask defining an image border definition with an aperture provided therein, a pod for a processing liquid, etc., bordering portions of the photosensitive sheet underlying the image border definition are formed of dried dummy liquid layers in place of the normal layers constituting the photosensitive sheet.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: November 9, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mamoru Ishiwata, Minoru Minoda
  • Patent number: 4357408
    Abstract: Adhesive compositions are disclosed which are particularly useful as mask adhesives in instant photographic products. These adhesives provide high strength permanent bonds while greatly improving border quality around image areas after imagewise exposure and development. These adhesive compositions comprise a polymeric acidic component having at least 3 milliequivalents of acid per gram of polymer, and a substantially immobile, blocked photographic development restrainer or a substantially immobile, blocked competing photographic developer.
    Type: Grant
    Filed: November 20, 1980
    Date of Patent: November 2, 1982
    Assignee: Eastman Kodak Company
    Inventors: Robert R. Rose, Carl H. Eldredge
  • Patent number: 4357409
    Abstract: Adhesive compositions are disclosed which are particularly useful as mask adhesives in instant photographic products. These adhesives provide high strength permanent bonds while greatly improving border quality around image areas after imagewise exposure and development. In addition, they can be heat sealed at relatively low sealing temperatures. These adhesive compositions comprise a polymeric acidic component having at least 3 milliequivalents of acid per gram of component, and a substantially immobile, blocked photographic development restrainer or a substantially immobile, blocked photographic developer. The polymeric acidic component comprises certain sulfo-containing polymers.
    Type: Grant
    Filed: November 20, 1980
    Date of Patent: November 2, 1982
    Assignee: Eastman Kodak Company
    Inventor: Wayne A. Bowman
  • Patent number: 4341857
    Abstract: An improvement to instant photograph film wherein spotted uneven concentration is effectively prevented, particularly under high temperature conditions, from being produced in the image zone edge portion during the formation of images after pressure and treatment. A zone of grooves is formed, in the width direction along the cross edge portion, in at least one face of the mutually opposite faces between a first sheet and a second sheet adjacent a treating liquid container. Thus, the thickness of the spread treating liquid is made uniform and increases near the grooves to reduce the floating of the second sheet. The second sheet's floating or rising is suppressed due to the increase in contact area with the viscous treating liquid. Trapped air is caught to prevent it from reaching the image zone portion. Since a partial air layer is prevented from being formed between the first sheet and the second sheet, the spotted uneven concentration does not appear.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: July 27, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Nanao Aoki
  • Patent number: 4320187
    Abstract: In a film unit for photography of the diffusive transfer process type including a photosensitive laminate, a mask sheet defining an image border definition with an aperture provided therein, a pod for a processing liquid etc. with, the mask sheet being made of a translucent material.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: March 16, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuya Kozai, Teruyoshi Makino, Hisashi Kikuchi
  • Patent number: 4317626
    Abstract: A pack of photo-identification cards comprises a casing including an exposure aperture and an exit slot and containing a plurality of photo-identification cards. Each card includes an exposable film chip surrounded by a core spacer and laminated with a transparent cover panel to substantially entirely surround the film chip except for access and venting ports through which processing fluid can be introduced to the film chip and air can be displaced from the volume occupied by the fluid.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: March 2, 1982
    Assignee: Eastman Kodak Company
    Inventor: Gerald M. Poshkus
  • Patent number: 4312939
    Abstract: A photographic film unit comprising a photosensitive sheet, in the form of an inert support coated on one side with one or more photosensitive layers, fixed to a second sheet having at least one inert side by a pair of rails adhered to an inert side of one of the sheets and to portions of the other sheet, in which the ends of one of the sheets extend beyond the other to provide supports at opposite ends for a pod carrying processing composition and for a fluid trap, and a mask and binder member securing the sheets together at their edges. A method of making the film unit in which the first and second sheets are brought together and adhered to each other by binder strips placed over them at prescribed intervals. The sheets so fixed together are then adhered to a binder web at one end thereof, and pieces of them are cut off and carried with the binder web through stations at which the additional elements of the film unit are installed and the assembly operations completed.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: January 26, 1982
    Assignee: Polaroid Corporation
    Inventor: Thomas P. McCole
  • Patent number: 4294906
    Abstract: A photographic processing sleeve is provided for receiving and processing a dye donating instant film sheet to produce a photographic print. The sleeve comprises a film retaining sheet that is folded over along its lateral edges to form channels which slidably receive the film sheet, and edge strips, sometimes called side rails, which space the film sheet from the image-receiving sheet. After processing, at least a major portion of the image-receiving sheet, including the finished picture, is adapted to be peeled apart from the rest of the sleeve which can then be discarded.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: October 13, 1981
    Assignee: Eastman Kodak Company
    Inventors: Philip D. Bechle, Joseph A. Roth
  • 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: 4292390
    Abstract: Integral diffusion transfer photographic film unit is described, comprising at least two support layers, at least one of which is transparent, having laminated therebetween at least one silver halide emulsion layer in association with a dye-image-providing material and an image-receiving layer, and a processing composition to be distributed between the two support layers, wherein at least one marginal portion of the integral film unit is masked by a masking material having formed on at least one surface thereof a pressure-sensitive or heat-sensitive adhesive layer containing an acid or an acid-releasing material.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: September 29, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Teruyoshi Makino
  • Patent number: 4289840
    Abstract: A photographic processing sleeve is provided for receiving and processing a dye donating instant film sheet to produce borderless photographic prints. The sleeve is constructed of first and second sheets coupled together to form a pocket therebetween for receiving the film sheet. One of the sheets includes a central section which carries materials for immobilizing the dyes donated by the film sheet to form a visible picture in the central section. A stripping sheet forms an outermost surface of one face of the sleeve and releasably couples the central section of the first sheet to the remainder of the sleeve so the stripping sheet and the picture in the central section can be stripped away from the remainder of the sleeve.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: September 15, 1981
    Assignee: Eastman Kodak Company
    Inventor: Robert A. Sylvester
  • Patent number: 4288533
    Abstract: A photographic film unit, which includes a photosensitive sheet and a cover sheet separated by a spacer, is provided with a small access port for introducing a processing fluid from the exterior of the film unit into the space between the sheets and a small venting port for releasing air displaced from such space by the introduction of the processing fluid. The spacer surrounds substantially the entire edge perimeter of the film unit in a border area thereof. The access and venting ports extend through the spacer in this border area at diagonally opposite corners of the film unit.
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: September 8, 1981
    Assignee: Eastman Kodak Company
    Inventor: Gerald M. Poshkus
  • Patent number: 4279988
    Abstract: In accordance with the present invention, a photographic film unit suitable for exposure and self-processing includes a substantially rigid mount having a central opening therethrough. A premounted film element is supported in the opening recessed between the mount's front and rear surfaces. A strippable cover sheet extends across the front of the film element to form a space for spreading processing liquid. A film support plug is received in the central opening rearwardly of the film element to inhibit the processing liquid from causing the film element to bow away from the cover sheet when the processing liquid is spread. In a preferred embodiment of the present invention, the film unit further includes a stripping sheet having a mask portion between the film element and the cover sheet, a backing sheet on the rear surface of the mount overlying the central opening, and a hinge portion interconnecting the mask portion and the backing sheet.
    Type: Grant
    Filed: January 15, 1980
    Date of Patent: July 21, 1981
    Assignee: Eastman Kodak Company
    Inventor: William P. Ewald
  • Patent number: 4273852
    Abstract: An instant film unit, including first and second superposed sheets, and conventional internal spacers for controlling the depth of a layer of processing fluid distributed by flowing the fluid between the sheets, is provided with additional internal spacers that reduce the resistance to fluid flow and augment the quantity of fluid supplied to the lateral edges of the imaging area. In the disclosure, the first spacers comprise portions of a mask, which frames the imaging area. The additional spacers are side rails which separate the lateral edges of the sheets by an amount greater than the thickness of the mask. The film unit is adapted for use with a processing device which includes a pressure nip long enough to span the imaging area, but the side rails are outside of the pressure nip adjacent the ends thereof.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: June 16, 1981
    Assignee: Eastman Kodak Company
    Inventors: Gerald A. Lange, Charles J. Simpson
  • Patent number: 4264718
    Abstract: The invention relates to a photographic film unit with integral structure consisting of an image sheet and a cover sheet which is substantially in register with the image sheet and firmly attached to it, whereby the attachment between the sheets is produced by a combination of individual masking strips and lateral spacer strips and said combination of multi-part mask is composed of a masking folding sheet associated with the container for photographic developer material and another associated with the trap and a separate lateral masking strip for each side.
    Type: Grant
    Filed: August 3, 1979
    Date of Patent: April 28, 1981
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Hermann Luhrig, Guido Kovacic, Walter Tabel, Horst-Peter Muller
  • Patent number: 4245035
    Abstract: A photo-identification card comprises a plastic laminate permanently encasing a photographically-exposable film chip that is developable by a single processing fluid. The laminate includes a core spacer having a compartment for receiving the chip with the spacer surrounding substantially the entire edge perimeter of the chip. Transparent cover panels, fused to the spacer by plastic-to-plastic bonds, physically protect the chip while permitting exposure and viewing through the laminate. Access ports are provided leading from the exterior of the laminate to the compartment for delivering the processing fluid to the chip.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: January 13, 1981
    Assignee: Eastman Kodak Company
    Inventor: Gerald M. Poshkus
  • Patent number: 4243737
    Abstract: An image-forming element is disclosed comprised of a support and a coating thereon containing a cobalt(III)complex and a compound containing a conjugated .pi. bonding system capable of forming at least a bidentate chelate with cobalt(III). The coating is predominantly free of anions which will form conjugate acids by deprotonation of a cobalt(II)complex containing the chelating compound. In one preferred form the image-forming element is radiation-sensitive. In this form the image-forming element can contain a photoactivator capable of initiating reduction of the cobalt(III)complex. An imaging process is disclosed in which the coating is exposed to actinic radiation to produce an image. Images can be recorded directly within the image-forming coating or in a separate image-recording element or layer by use of the residual cobalt(III)complex or by use of one or more of the reaction products produced by exposure.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: January 6, 1981
    Assignee: Eastman Kodak Company
    Inventor: Thap DoMinH
  • Patent number: 4242443
    Abstract: The invention relates to a photographic film unit with a picture sheet and a covering sheet which are joined together by means of an interposed mask, and a container for photographic developer material is located at the front end and a trap for collecting excess developer material is located at the rear end of the picture unit and whereby air guiding channels connect the trap compartment with the container compartment to conduct the surplus air or also developer past towards the empty developer container.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: December 30, 1980
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Hermann Luhrig, Guido Kovacic, Horst-Peter Muller
  • Patent number: 4216018
    Abstract: Photographic products having reflective layers which comprise lamellar interference pigments.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: August 5, 1980
    Assignee: Polaroid Corporation
    Inventors: Ruth C. Bilofsky, Howard G. Rogers
  • Patent number: 4203716
    Abstract: This invention is directed to photographic elements having hydrophilic colloid layers containing loaded particles of from 0.02 to 0.2 micron in average diameter consisting essentially of a loadable polymer, with greater than 2 percent by weight of the polymer being derived from monomers capable of forming water soluble homopolymers. A hydrophobic photographic dye, coupler, developing agent or ultraviolet absorbing compound is loaded into and distributed through the particles. The weight ratio of the hydrophobic photographic dye, coupler, developing agent or ultraviolet absorbing compound to the loadable polymer is from about 1:4 to 3:1.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: May 20, 1980
    Assignee: Eastman Kodak Company
    Inventor: Tsang J. Chen
  • Patent number: 4196000
    Abstract: A preregistered instant-processing film unit including an internal dark slide and adapted for use in exposure apparatus having processing rollers. The film unit includes a leader that carries "saddle detents" or detent shims located on opposite sides of the dark slide and having a caliper greater than the thickness of the dark slide. The shims are positioned to receive the rollers, both to provide sufficient clearance for removal of the dark slide therebetween and to hold the rest of the film unit in position while the dark slide is removed.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: April 1, 1980
    Assignee: Eastman Kodak Company
    Inventor: William H. Johnson
  • Patent number: 4173477
    Abstract: A silver halide photographic material comprising an aluminum support having thereon an anodized aluminum oxide layer and a light sensitive silver halide layer containing a silver halide developing agent thereon with a subbing layer containing at least either a silver halide or a developing agent suitable for a silver halide in an amount less than the quantity contained in the light-sensitive layer, which can be used to produce a relief image possessing high printing durability by successively receiving an image-wise exposure, an alkaline solution development, a washing-off and a drying.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: November 6, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Kikuo Kubotera, Akira Kashiwabara