Patents by Inventor Gareth B. Evans
Gareth B. Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7561730Abstract: A method and system of capturing a three dimensional image of an object or scene and using the information obtained to produce a physical representation of the object or scene. The physical representation may be dynamic, for moving objects, or permanent.Type: GrantFiled: December 10, 2003Date of Patent: July 14, 2009Assignee: Eastman Kodak CompanyInventors: Peter Hewitson, Gareth B. Evans, Christopher J. Winscom, Leslie R. Wells, Jennifer C. Loveridge
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Patent number: 7224379Abstract: A contact printing apparatus (100), using a direct-coupled emissive array (20) of individual light emitting pixels (22), forms an image from digital data onto a photosensitive medium (16). The direct-coupled emissive array (20) is fabricated on an optically coupled substrate (25) that provides light-directing elements, such as a lenslet array or fiber optic faceplate (40) for directing light from emitter pixels (22) to print pixel (71) locations on the photosensitive medium (16).Type: GrantFiled: May 3, 2004Date of Patent: May 29, 2007Assignee: Eastman Kodak CompanyInventors: Victor C. Wong, Badhri Narayan, Gareth B. Evans
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Patent number: 7018115Abstract: An apparatus for washing contaminants from a coated surface of a material comprises an inclined substantially planar surface up which the material is passed, an inlet for the introduction of wash solution at the upper part of the planar surface and pressure applying means for holding the material in full contact with the surface.Type: GrantFiled: August 26, 2003Date of Patent: March 28, 2006Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, Peter Hewitson
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Publication number: 20040136571Abstract: A method and system of capturing a three dimensional image of an object or scene and using the information obtained to produce a physical representation of the object or scene. The physical representation may be dynamic, for moving objects, or permanent.Type: ApplicationFiled: December 10, 2003Publication date: July 15, 2004Applicant: Eastman Kodak CompanyInventors: Peter Hewitson, Gareth B. Evans, Christopher J. Winscom, Leslie R. Wells, Jennifer C. Loveridge
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Publication number: 20040062546Abstract: A method of washing contaminants from a coated surface of a material transports the material up an inclined substantially planar surface and introduces wash solution at the upper part of the planar surface. The planar surface incorporates substantially non smooth resistance means which provides a resistance to downward flow of the wash solution and has a capacity for holding wash solution which is in excess of that of a substantially smooth surface.Type: ApplicationFiled: August 26, 2003Publication date: April 1, 2004Applicant: Eastman Kodak CompanyInventors: Gareth B. Evans, Peter Hewitson
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Publication number: 20040042788Abstract: An apparatus for washing contaminants from a coated surface of a material comprises an inclined substantially planar surface up which the material is passed, an inlet for the introduction of wash solution at the upper part of the planar surface and pressure applying means for holding the material in full contact with the surface.Type: ApplicationFiled: August 26, 2003Publication date: March 4, 2004Applicant: Eastman Kodak CompanyInventors: Gareth B. Evans, Peter Hewitson
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Patent number: 6524779Abstract: A method of producing a photographic image in an imagewise exposed photographic material comprising one or more silver halide emulsion layers is provided which method comprises developing the material with a developer solution containing a silver halide developing agent, releasably laminating the material with a receiver sheet containing an adsorbent for the developing agent in oxidized and unoxidized form, and, after a period of time sufficient for adsorption of the developing agent in the receiver sheet, separating the photographic material and the receiver sheet.Type: GrantFiled: May 31, 2001Date of Patent: February 25, 2003Assignee: Eastman Kodak CompanyInventors: John R. Fyson, Gareth B. Evans
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Patent number: 6513995Abstract: The present invention provides a method and a system for processing light sensitive photographic material, comprising the steps of exposing an image onto the photographic material, applying to the material in an imagewise manner at least one developer wherein the amount of developer applied at any point depends on the image density to be produced at that point, wherein the exposure is controlled to account for the response of the photographic material to the amount of developer applied. The invention provides a method and system for processing photographic material that is simple, chemically efficient and produces low or zero-effluent whilst also providing fully satisfactory photographic performance.Type: GrantFiled: June 5, 2002Date of Patent: February 4, 2003Assignee: Eastman Kodak CompanyInventors: John R. Fyson, Gareth B. Evans, Peter Hewitson
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Patent number: 6479223Abstract: A method of producing a photographic image in an imagewise exposed photographic material comprising one or more silver halide emulsion layers comprises applying to the material in an imagewise manner a developer solution containing a silver halide developing agent wherein the amount of solution applied depends on the image density to be produced, removing unreacted developing agent from the material or inactivating unreacted developing agent in the material by means other than immersion of the material in a liquid in a tank.Type: GrantFiled: May 10, 2001Date of Patent: November 12, 2002Assignee: Eastman Kodak CompanyInventors: John R. Fyson, Gareth B. Evans, Peter Hewitson, Jon A. Kapecki
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Publication number: 20020015922Abstract: A method of producing a photographic image in an imagewise exposed photographic material comprising one or more silver halide emulsion layers comprisesType: ApplicationFiled: May 10, 2001Publication date: February 7, 2002Applicant: Eastman Kodak CompanyInventors: John R. Fyson, Gareth B. Evans, Peter Hewitson, Jon A. Kapecki
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Patent number: 6106169Abstract: Method and apparatus are disclosed for washing exposed photographic material in less time and with a reduced replenishment rate compared with conventional processing. Multi-stage counter-current washing is employed, in which the time that the material spends in each stage is such that equilibrium of chemical concentration between solution contained in the material and solution contained in the stages (a) is reached in the final stage, but (b) is reached in fewer than all the stages, and wherein the material resides in at least one stage for a time that is different from that in at least one other of the stages. Preferably the longest time is spent in the final stage. The time distribution throughout the stages can be optimized to produce a final tank concentration comparable to that obtained with conventional processing.Type: GrantFiled: October 6, 1998Date of Patent: August 22, 2000Assignee: Eastman Kodak CompanyInventors: Henry H. Adam, Gareth B. Evans
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Patent number: 5871891Abstract: A processing method can be used to develop sequentially both low silver and relatively high silver photographic materials in the same processor. The method includes a development step for each type of material, in any order, with a developer solution adapted for both development steps. When the lower silver photographic materials are developed, the developer solution also contains an oxidizing agent to render it a redox developer/amplifier solution. The oxidizing agent is removed or inactivated when the relatively high silver photographic materials are processed with the same developer solution.Type: GrantFiled: November 13, 1997Date of Patent: February 16, 1999Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, Peter J. Twist
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Patent number: 5842073Abstract: Described herein is a high capacity, low volume processor for processing photographic material in web form. The processor is self-threading and is capable of being linked directly to a high-speed printer. The processor can be replenished by direct replenishment of concentrates without external chemical mixing. "Fluid drive" is preferably used to provide both transport of the web through the processing tanks and to provide agitation at the surface of the web.Type: GrantFiled: February 14, 1997Date of Patent: November 24, 1998Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, Anthony Earle
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Patent number: 5826127Abstract: Photographic processing apparatus in which both exposing and processing stages of a photographic process are combined to form a single unit or linked so that a continuous web of photographic film or paper is used in both units at the same time is known. However, due to differences in speed of the exposing and processing stages, there is a need to store a "buffer" length of the material being processed between the two stages. Described herein is a method of varying the speed of the processing stage of photographic processing apparatus to compensate for changes in the capacity of a processor while maintaining a constant path length. This achieved by changing its activity of one of the steps in the processing stage, for instance, by changing the temperature of the development step. This is feasible without unacceptable time delays or energy or chemical consumption associated with changing the solution activity by the use of low volume tanks with low capacity.Type: GrantFiled: December 9, 1996Date of Patent: October 20, 1998Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, Anthony Earle
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Patent number: 5784661Abstract: A high capacity, low volume processor is described in which the benefits associated with low volumes are obtained. The processor comprises an inner tank (50) which holds a volume of processing solution which is substantially less than that of an outer tank (40) in which it is placed. A rack insert (60) is provided inside the inner tank (50) to define a processing channel (62) therebetween. The inner tank (50) and rack insert (60) can be retro-fitted to existing processing tanks.Type: GrantFiled: February 14, 1997Date of Patent: July 21, 1998Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, Anthony Earle, Nigel Wildman, Andrew D. Grimsey
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Patent number: 5445925Abstract: A color image can be obtained from a color photographic element by multiple color development steps. The first color development is carried out in the usual manner after imagewise exposure. The second color development step is carried out after bleaching with a rehalogenating bleaching agent, and is used to develop only rehalogenated silver halide. This specific development is possible by either using a chloride rehalogenating agent in the bleaching solution, using a sulfite fixing agent before bleaching, or by fogging the element between bleaching and the second color development step.Type: GrantFiled: April 7, 1994Date of Patent: August 29, 1995Assignee: Eastman Kodak CompanyInventors: Peter D. Marsden, Gareth B. Evans
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Patent number: 5420003Abstract: A photographic element is disclosed comprised of a support and a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon imagewise exposure and photographic development. A first interlayer unit overlies the emulsion layer unit nearest the support and is capable of transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record. A second interlayer unit underlies the emulsion layer unit farthest from the support and is capable of transmitting to the emulsion layer units lying nearer the support imagewise exposing radiation these emulsion layer units are intended to record. The imagewise exposed photographic element is photographically developed and fixed to produce a silver image in each of the emulsion layer units.Type: GrantFiled: February 22, 1994Date of Patent: May 30, 1995Assignee: Eastman Kodak CompanyInventors: John Gasper, Gareth B. Evans, Christopher B. Rider, Michael J. Simmons
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Patent number: 5389503Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing. A first interlayer overlies the emulsion layer unit nearest the support for transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record and for absorbing after photographic processing scanning radiation within at least one wavelength region. A second interlayer underlies the emulsion layer unit farthest from the support for transmitting to the underlying emulsion layer units exposing radiation they are intended to record and for absorbing after photographic processing scanning radiation within at least one wavelength region.Type: GrantFiled: February 22, 1994Date of Patent: February 14, 1995Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, Christopher B. Rider, Michael J. Simons
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Patent number: 5350650Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing (e.g., units lacking a dye-forming coupler). A first interlayer unit overlies the emulsion layer unit nearest the support and is capable of transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record. A second interlayer unit underlies the emulsion layer unit farthest from the support and is capable of transmitting to the emulsion layer units lying nearer the support imagewise exposing radiation these emulsion layer units are intended to record.Type: GrantFiled: July 16, 1993Date of Patent: September 27, 1994Assignee: Eastman Kodak CompanyInventors: John Gasper, Gareth B. Evans, Christopher B. Rider, Michael J. Simons
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Patent number: 5350651Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing (e.g., lacking an incorporated dye-forming coupler). A first interlayer overlies the emulsion layer unit nearest the support for transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record and for absorbing after photographic processing scanning radiation within at least one wavelength region.Type: GrantFiled: July 16, 1993Date of Patent: September 27, 1994Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, Christopher B. Rider, Michael J. Simons