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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Fenton; David E.
Address:
Fairport, NY
No. of patents:
13
Patents:












Patent Number Title Of Patent Date Issued
7029837 Photographic film element containing an emulsion with dual peek green responsivity April 18, 2006
This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image forming unit comprised of at least one red sensitive silver halide emulsion, a magenta dye image forming unit comprised of at least one green sensitive silver halide emulsion, and
6342341 Fragmentable electron donor compounds used in conjunction with epitaxially sensitized silver hal January 29, 2002
This invention comprises a silver halide photographic element comprising at least one sensitive silver halide emulsion layer comprising silver halide grains that have been epitaxially sensitized and a fragmentable electron donor compound is of the formula X--Y' or a compound which contai
6331385 Photographic material having enhanced light absorption December 18, 2001
This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising tabular silver halide grains having associated therewith at least two dye layers comprising(a) an inner dye layer adjacent to the silver halide grain and comprising at
5871896 Preparation and use of a dimethylamine silver bromide complex as a single source precursor for n February 16, 1999
A dimethylamine silver bromide complex is used as a single source precursor for nucleation of silver bromide crystals.
5856079 Preparation and use of a dimethylamine silver bromo-iodide complex as a single source precursor January 5, 1999
A dimeitylarnine silver bromo-iodide complex is used as a single source precursor for iodide incorporation in silver bromide crystals.
5736312 Process for the preparation of silver halide emulsions having iodide containing grains April 7, 1998
A process of preparing a photographic emulsion having radiation-sensitive silver iodohalide grains. Iodide is introduced into the grains by releasing iodide ions from iodate (IO.sub.3.sup.-). Release of iodide ions from the IO.sub.3.sup.- is employed to enhance the uniformity of iodide
5723278 Tabular grain emulsions with selected site halide conversions and processes for their preparatio March 3, 1998
A radiation-sensitive photographic emulsion is disclosed containing a gelatino-vehicle and tabular grains accounting for at least 70 percent of total grain projected area comprised of, prior to house conversion, at least 90 mole percent bromide and, after house conversion, up to 12 mole
5567580 Radiographic elements for medical diagnostic imaging exhibiting improved speed-granularity chara October 22, 1996
A radiographic element for medical diagnostic imaging is disclosed comprised of a transparent support and first and second silver halide emulsion layer units coated on opposite sides of the film support, each emulsion layer unit being comprised of a silver iodohalide tabular grain em
5476760 Photographic emulsions of enhanced sensitivity December 19, 1995
Tabular grain emulsions of enhanced photographic sensitivity are disclosed in which the tabular grains contain a maximum surface iodide concentration along their edges and a lower surface iodide concentration within their corners than elsewhere along their edges.
5399468 Color photographic silver halide duplicating element and process March 21, 1995
A color photographic silver halide negative working duplicating element and process comprising (A) a magenta colored masking coupler in at least one blue-sensitive photographic silver halide emulsion layer; and (B) a combination of (i) masking couplers and (ii) color contamination of at
5358840 Tabular grain silver iodobromide emulsion of improved sensitivity and process for its preparatio October 25, 1994
Silver iodobromide tabular grain emulsions of enhanced photographic sensitivity are disclosed. The silver iodobromide grains contain from 2 to less than 10 mole percent iodide, exhibit a coefficient of variation of less than 20 percent, and consisting essentially of tabular grains having
5283164 Color film with closely matched acutance between different color records February 1, 1994
A color photographic silver halide negative working duplicating element comprising a support bearing, in order from the support, at least one red-sensitive photographic silver halide emulsion layer package comprising at least one cyan image-dye forming coupler that is capable upon exposu
5250403 Photographic elements including highly uniform silver bromoiodide tabular grain emulsions October 5, 1993
Novel tabular grain emulsions and a process for their preparation are disclosed in which silver bromoiodide tabular grains account for greater than 97 percent of total grain projected area and the coefficient of variation of the total grain population is less than 25 percent. This is










 
 
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