Patents by Inventor Richard P. Szajewski

Richard P. Szajewski 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).

  • Patent number: 6143693
    Abstract: The invention relates to an imaging member comprising at least one layer comprising catalytic centers and an aqueous permeable matrix wherein said imaging member is substantially free of photosensitive silver halide. It further relates to a method of imaging comprising supplying an oxidant and imagewise applying at least one soluble dye forming coupler in developer solution to such an imaging member.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: November 7, 2000
    Assignee: Eastman Kodak Company
    Inventors: Lyn M. Irving, Richard P. Szajewski
  • Patent number: 6062746
    Abstract: The invention relates to an apparatus for thermal development comprising a receiving chamber for a thrust cartridge, drive means to advance thermal film from said thrust cartridge and rewind film into said thrust cartridge, a magnetic reader and writer to read and write magnetic information onto the film, an accumulator to gather said film after it has left the cartridge, a heater located between said chamber and said accumulator to develop said thermal film as it passes between said cartridge and said accumulator, an optical scanner to produce an electronic file representation of the film image information, and a lighttight container for said chamber, heater, and accumulator.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: May 16, 2000
    Assignee: Eastman Kodak Company
    Inventors: Timothy W. Stoebe, Lyn M. Irving, David H. Levy, Richard P. Szajewski
  • Patent number: 6048110
    Abstract: The invention relates to an apparatus for thermal development comprising a receiving chamber for a thrust cartridge, drive means to advance thermal film from said thrust cartridge and rewind film into said thrust cartridge, a magnetic reader and writer to read and write magnetic information onto the film, an accumulator to gather said film after it has left the cartridge, a heater located between said chamber and said accumulator to develop said thermal film as it passes between said cartridge and said accumulator, and a lighttight container for said chamber, heater, and accumulator.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: April 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, David H. Levy, Lyn M. Irving, Timothy W. Stoebe
  • Patent number: 6021277
    Abstract: A one-time-use camera preloaded with a color negative silver halide photographic element is disclosed. The element is capable of producing images after imagewise exposure that, when developed, converted to electronic form, digitally corrected and then converted to a viewable form, exhibit excellent color, reduced granularity and improved sharpness. The photographic elements contain blue, green and red recording layer units capable of forming spectrally differentiated dye images. The layer units are substantially free of colored masking coupler, and each exhibit a dye image gamma of less than 1.5. The element exhibits an exposure latitude of at least 2.7 log E. The gamma ratios of the blue, green and red recording layer units are between 0.80 and 1.2.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: February 1, 2000
    Assignee: Eastman Kodak Company
    Inventors: Allan F. Sowinski, Richard P. Szajewski, Lois A. Buitano, John D. Buhr, Frank R. Brockler
  • Patent number: 5840470
    Abstract: Silver bromide color negative films can be rapidly processed using shortened color development times and specific amounts of color developing agent and bromide ion. After development, and optionally desilvering or fixing, the developed film is scanned to form density representative digital signals for the color records. These signals are then digitally manipulated to correct both interimage interactions and gamma mismatches around the color records to produce a digital record that is capable of providing a display image having desired aim color and tone scale reproduction. That digital record can then be stored or used to provide corrected display images, such as color prints, using output display devices.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: November 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, John M. Buchanan, Richard P. Szajewski
  • Patent number: 5837433
    Abstract: A color corrected display image can be rapidly provided by color developing an imagewise exposed, duplitized color photographic element, scanning the developed image to form digital signals, and digitally manipulating those signals to correct either interimage interactions and/or gamma mismatches among at least two color recording units. The color corrected image can be provided in any desired form. The duplitized elements have at least one light-sensitive silver halide imaging layer on each side of the support.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: November 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, John M. Buchanan, Richard P. Szajewski
  • Patent number: 5773205
    Abstract: A film spool cartridge and/or camera contain a duplitized color silver halide photographic element having an ISO of at least 25 and at least one light sensitive imaging layer or color recording unit on each side of the support. Such elements can be rapidly processed to provide desired color images. The film spool cartridge includes a spindle, the element wound around the spindle and an aperture for film transport. The camera includes a housing internally forming an exposure plane locator, a lens, a cartridge holder for receiving the film spool cartridge, and a shutter positioned between the lens and the exposure plane for imagewise exposure of the duplitized element.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: June 30, 1998
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Gary L. House
  • Patent number: 5747228
    Abstract: A color corrected display image can be rapidly provided by color developing an imagewise exposed, duplitized color photographic element, scanning the developed image to form digital signals, and digitally manipulating those signals to correct either interimage interactions and/or gamma mismatches among at least two color recording units. The color corrected image can be provided in any desired form. The duplitized elements have at least one light-sensitive silver halide imaging layer on each side of the support.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: May 5, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, John M. Buchanan, Richard P. Szajewski
  • Patent number: 5744288
    Abstract: A color image can be rapidly provided by color developing an imagewise exposed, duplitized color photographic element that has an ISO of at least 25. The duplitized elements have at least one light sensitive silver halide imaging layer or color recording unit on each side of the support.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: April 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: John M. Buchanan, Anne E. Bohan, Richard P. Szajewski
  • Patent number: 5744290
    Abstract: Duplitized color silver halide photographic elements have an ISO of at least 25 and at least one photosensitive imaging layer or color recording unit on each side of the support. Such elements can be rapidly processed to provide desired color images.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: April 28, 1998
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Gary L. House
  • Patent number: 5698379
    Abstract: Silver chloride color negative films can be rapidly processed using shortened color development times and specific amounts of color developing agent and bromide ion. After development, and optionally desilvering or fixing, the developed film is scanned to form density representative digital signals for the color records. These signals are then digitally manipulated to correct both interimage interactions and gamma mismatches around the color records to produce a digital record that is capable of providing a display image having desired aim color and tone scale reproduction. That digital record can then be stored or used to provide corrected display images, such as color prints, using output display devices.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 16, 1997
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, John M. Buchanan, Richard P. Szajewski
  • Patent number: 5618656
    Abstract: An improved image forming method is disclosed which comprises contacting both an originating photographic element and a display photographic element with substantially similar processing solutions. The originating photographic element is characterized in that it contains at least 50 mole percent silver chloride grains and no more than 2 mole percent silver iodide, based on total silver forming the grain projected area. The grains are tabular grains bounded by {100} faces having adjacent edge ratios of less than 100 and each having an aspect ratio of at least 2.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: April 8, 1997
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, John M. Buchanan
  • Patent number: 5599656
    Abstract: Photographic elements are disclosed having a first coupler represented by the formula:COUP.sub.1 -T-INHwhereinCOUP.sub.1 is a coupler moiety,T is a timing group bonded to INH through a substituted or unsubstituted methylene group contained in T and bonded to COUP.sub.1 through an O, S, or N atom contained in T,and INH is a development Inhibitor moiety, andwherein the T-INH group is able to undergo electron transfer along a conjugated system therein to cleave INH after T-INH is cleaved from COUP.sub.1, anda second coupler represented by the formula:COUP.sub.2 -(TIME).sub.n -S-R.sub.1 -R.sub.2wherein COUP.sub.2 is a coupler moiety, TIME is a timing group, n is 0 or 1, R.sub.1 is a divalent linking group that does not include a heterocyclic ring attached directly to S, and R.sub.2 is a water solubilizing group.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: February 4, 1997
    Assignee: Eastman Kodak Company
    Inventors: Drake M. Michno, Richard P. Szajewski, Stephen P. Singer
  • Patent number: 5563024
    Abstract: An improved image display material comprising a light sensitive tabular grain silver chloride emulsion spectrally sensitized to a peak wavelength of less than about 475 nm, and a method of use comprising the step of optically printing a color image onto the improved color photographic display material is provided. The material and method enable reduced printing times, improved color reproduction and lowered image granularity.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 8, 1996
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, Jerzy A. Budz, Pamela M. Ferguson, Alberto M. Martinez, James P. Merrill, Scott F. O'Dell, Richard P. Szajewski
  • Patent number: 5536625
    Abstract: This invention provides an accelerator for peracid bleaches used for bleaching silver halide photographic elements. The accelerator is a complex of ferric (Fe III) ion and a 2-pyridinecarboxylic acid or a 2,6-pyridinecarboxylic acid. The accelerator may be contained in the bleaching solution, a solution preceding the bleaching solution or in the photographic elements themselves.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: July 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: John M. Buchanan, Stuart T. Gordon, Keith H. Stephen, Richard P. Szajewski, Sidney J. Bertucci
  • Patent number: 5500330
    Abstract: A photographic element comprises at least three light sensitive silver halide layers spectrally sensitized to the same region of the electromagnetic spectrum wherein the least sensitive such layer, or a nonsensitive layer adjacent thereto, comprises a compound which contains a releasable thiol fragment or a precursor thereof wherein:A. the amount of the thiol-containing compound or precursor contained in such layers is both sufficient to increase the extent of silver bleaching during bleaching and is greater than the amount contained in any of the more sensitive layers of the same sensitivity; andB. the thiol fragment contains a sulfur atom which is not directly bonded to an aromatic atom and contains a water-solubilizing group.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: March 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Allan F. Sowinski
  • Patent number: 5491050
    Abstract: A method of processing an exposed originating silver halide color photographic element comprising developing the photographic element in a color devoloper containing a p-phenylenediamine color developing agent in the presence of a 1-phenyl pyrazolidin-3-one compoundwherein the originating silver halide photographic element comprises a radiation sensitive emulsion in reactive association with a development inhibitor releasing compound and containing a silver halide grain population comprised of grains comprising at least 50 mole percent silver chloride, based on total silver forming the grain population projected area, wherein at least 50 percent of total grain projected area is accounted for by intrinsically stable silver halide tabular grains(1) bounded by {100} major faces having adjacent edge ratios of less than 10 and(2) each having an average aspect ratio of at least 2, and wherein the silver halide content of the photographic element comprises at least 50 mole % silver chloride and no more than 2 mole %
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: February 13, 1996
    Assignee: Eastman Kodak Company
    Inventors: Thomas B. Brust, Sharon Gould, James E. Sutton, Richard P. Szajewski
  • Patent number: 5466560
    Abstract: This invention relates to cameras designed for single or limited use. It more particularly relates to cameras that are intended for one use, after which they are recycled, subsequent to removal of the film for development and printing or scanning. The camera and film combinations provide exceptionally sharp images.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: November 14, 1995
    Assignee: Eastman Kodak Company
    Inventors: Allan F. Sowinski, Richard P. Szajewski, James P. Merrill
  • Patent number: 5464728
    Abstract: This invention provides a method of processing a developed high iodide color silver halide photographic element by bleaching the element with a peracid bleach and fixing the element with a fixer containing sodium cation and thiosulfate, wherein the amount of ammonium ion in the fixer is less than 1.4M.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: November 7, 1995
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, John M. Buchanan
  • Patent number: 5460924
    Abstract: This invention provides an accelerator for peracid bleaches used for bleaching silver halide photographic elements. The accelerator is a complex of ferric (Fe III) ion and a 2-pyridinecarboxylic acid or a 2,6-pyridinecarboxylic acid. The accelerator may be contained in the bleaching solution, a solution preceding the bleaching solution or in the photographic elements themselves.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: October 24, 1995
    Assignee: Eastman Kodak Company
    Inventors: John M. Buchanan, Stuart T. Gordon, Keith H. Stephen, Richard P. Szajewski, Sidney J. Bertucci