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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Singer; Stephen P.
Address:
Spencerport, NY
No. of patents:
74
Patents:


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Patent Number Title Of Patent Date Issued
7455959 Photographic element containing a speed-enhancing compound November 25, 2008
The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless imidazole compound of formula (I) that undergoes les
7354701 Photographic element with speed-enhancing compound April 8, 2008
The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless heterocyclic compound having either one or two heter
7338756 Method of preparation of direct dispersions of photographically useful chemicals March 4, 2008
A process for making a direct dispersion of a photographically useful material comprising: mixing (i) an aqueous phase and (ii) a liquid organic phase under conditions of shear or turbulence to form a dispersion of the organic phase dispersed in the aqueous phase; wherein the liquid
7175975 Photographic material with improved development inhibitor releases February 13, 2007
This invention relates to a multilayer silver halide photographic element, generally processed with phenylenediamine based developer solutions, comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associate
7108964 Compound containing an anthranilic acid blocking group September 19, 2006
The invention relates to a novel kind of anthranilic acid compound that releases a UG as a function of chemical bond cleavage according to Formula (I): Q-(AAS)-UG where UG is an useful group and is chemically bonded to (AAS); (AAS) is an anthranilic acid switching group; and Q is a g
6893809 Silver halide photographic element containing fogged emulsions for accelerated development May 17, 2005
This invention relates to a negative silver halide photographic element comprising a support and a silver halide imaging layer containing a light sensitive silver halide imaging emulsion, said silver halide imaging layer further comprising a separately precipitated non-imaging intentiona
6887656 Color photographic element containing improved heterocyclic speed enhancing compound May 3, 2005
Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer containing a compound that does not react with oxidized developer, has a Log Kow high enough to improve speed, compared to the same layer without the compound, and comprises
6811963 Color photographic material with improved sensitivity November 2, 2004
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 layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming un
6794121 Method of making a silver halide photographic material having enhanced light absorption and low September 21, 2004
This invention relates to a method of spectrally sensitizing a silver halide emulsion comprising the following steps in the following order a) providing a silver halide emulsion comprising tabular silver halide grains having an inner dye layer adjacent to the silver halide grain, said
6790602 Method of making a silver halide photographic material having enhanced light absorption and low September 14, 2004
This invention relates to a method of spectrally sensitizing a silver halide emulsion comprising the following steps in the following order a) providing a silver halide emulsion comprising tabular silver halide grains having an inner dye layer adjacent to the silver halide grain, said
6780573 Color photographic element containing coupler moiety with improved amino acid timing group August 24, 2004
The invention relates to a color silver halide photographic element comprising a light-sensitive silver halide emulsion layer, said silver halide emulsion being in reactive association with an amino acid compound according to Formula (I): ##STR1##wherein: COUP is a moiety that rea
6756188 Photographic recording material for accelerated development June 29, 2004
This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers further comprising, an electron transfer agent releasing compound represented by the formula (I):wherein: CAR.sup.1 is a carrier moiety which is capable of releasing --(L).
6699652 Color photographic material with improved sensitivity comprising a pyrazolotriazole coupler March 2, 2004
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 layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming un
6589724 Color photographic element containing speed-improving benzotriazole polymer July 8, 2003
Disclosed is color silver halide photographic element comprising a light-sensitive silver halide emulsion layer or a non-silver containing light-insensitive layer, said light-sensitive or light-insensitive layer containing a polymer compound comprising a repeating benzotriazole subunit
6472133 Silver halide element with improved high temperature storage October 29, 2002
This invention relates to a silver halide photographic element comprising at least one silver halide emulsion layer containing a dye-forming coupler which reacts with an oxidized color developing agent to form dye, said silver halide element further comprising an amido compound of Formul
6458521 Color photographic element containing coupler useful for forming neutral silver-based image October 1, 2002
The invention provides a color photographic element that contains a coupler useful for forming a neutral silver-based image. Such couplers are particularly useful to provide an auxiliary silver-based image for optically recording a sound track in color motion picture films.
6455242 Color photographic element containing speed improving compound September 24, 2002
Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with
6426180 Color photographic element containing speed improving compound in combination with electron tran July 30, 2002
Disclosed is a color silver halide photographic element comprising a support bearing: (1) a light sensitive silver halide emulsion layer; (2) a nitrogen heterocycle with a minimum of three heteroatoms that does not react with oxidized developer, does not contain free thiol substitu
6416943 Color photographic element containing coupler useful for forming neutral silver-based image July 9, 2002
The invention provides a color photographic element suitable for forming both a colored dye image and a neutral silver-based image, comprising a support bearing at least one light-sensitive silver halide emulsion layer containing a coupler capable of forming a colored dye upon developmen
6350564 Color photographic element containing speed improving compound in combination with reflecting ma February 26, 2002
Disclosed is a color silver halide photographic element comprising a support bearing:(1) a light sensitive silver halide emulsion layer;(2) a nitrogen heterocycle with a minimum of three heteroatoms that does not react with oxidized developer, does not contain free thiol substituents, an
6319660 Color photographic element containing speed improving compound November 20, 2001
Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with
6316177 Color photographic element containing speed-improving polymers November 13, 2001
Disclosed is a color silver halide photographic element comprising a light-sensitive silver halide emulsion layer or a non-silver containing light-insensitive layer, said light-sensitive or light-insensitive layer containing a polymer compound comprising a heterocycle unit derived from:(
6309813 Reduced fog in photographic coatings containing a monosubstituted quinone October 30, 2001
Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer containing an azopyrazolone masking coupler and a monosubstituted quinone of formula I: ##STR1##wherein R is selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, alkylthio, ar
6309811 Color photographic element containing nitrogen heterocycle derivative and inhibitor releasing co October 30, 2001
Disclosed is a color photographic element comprising:a) a first light sensitive silver halide emulsion layer containing a compound with an aromatic bicyclic nitrogen nucleus of which at least one ring is six-membered and with two nitrogen ring atoms in each ring and with at least one N--
6255045 Color photographic element containing improved polymeric disulfonamidophenol for scavenging oxid July 3, 2001
This invention relates to a photographic element comprising a support, a radiation sensitive silver halide emulsion layer and a water dispersible polymeric disulfonamidophenol that is substantially immobile in the element. The invention provides color photographic elements that exhibit
6228572 Color photographic element containing ballasted mercaptodiazole derivative and inhibitor releasi May 8, 2001
The invention provides a color photographic element comprising:a) a first light sensitive silver halide emulsion layer containing a compound of Formula 1: ##STR1## wherein:M is hydrogen, an alkali metal cation or an ammonium cation,X is oxygen, sulfur or selenium, andQ represents a ballastin
6197488 Color photographic element containing a coupler releasing derivative with at least three heteroa March 6, 2001
Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith a coupler according to Formula I:wherein:COUP is an organic fragment which reacts with oxidized developer to release--(TIME).sub.n --HSM,TIME is an o
6190849 Photographic element containing ballasted tetrazole derivative and inhibitor releasing coupler February 20, 2001
The invention provides a color photographic element comprising:a) a first light sensitive silver halide emulsion layer containing a tetrazole compound of Formula I: ##STR1## wherein when R.sub.1 is hydrogen, then R.sub.2 is an alkyl, aryl, alkoxy , aryloxy, alkylthio or arylthio, sulfoxy
6190848 Color photographic element containing ballasted triazole derivative and inhibitor releasing coup February 20, 2001
The invention provides a color photographic element comprising:a) a first light sensitive silver halide emulsion layer containing a compound of Formula I: ##STR1##wherein Q represents the atoms necessary to form a triazole ring and the associated bonds, provided that the ring members may
6140029 Color photographic element containing elemental silver and nitrogen heterocycle in a non-light s October 31, 2000
The invention provides a silver halide photographic element comprising a non-light sensitive layer containing elemental silver and a nitrogen heterocycle compound having a ClogP of at least 4.5, which compound comprises a ring system of one or more fused rings containing at least one
6054257 Photographic element containing particular coupler and inhibitor releasing coupler April 25, 2000
A photographic element is disclosed comprising:a) a first light sensitive silver halide emulsion layer containing a compound of Formula I: wherein1) COUP.sub.1 is a coupler parent group capable of forming a dye upon reaction with oxidized developer wherein --(L).sub.n --A is not attached
6043013 Color photographic element containing elemental silver and heterocyclic thiol in a non-light sen March 28, 2000
Disclosed is a photographic element comprising a non-light sensitive layer containing elemental silver and a heterocyclic thiol compound having a Clog P of at least 2.0 but less than 12.0, provided that the ring system of the compound comprises a --N.dbd.C--S--H group or its tautomer and
6043012 Color negative photographic elements with modified scavenging compound distributions March 28, 2000
A color negative photographic element is disclosed containing higher levels of oxidized developer agent scavenging compound in the lowest and intermediate sensitivity layers of a triple-coated image recording unit than in the fast layer. Reduced fog and granularity are obtained, and
6010837 Silver halide photographic element comprising image dye-forming couplers January 4, 2000
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith an image dye-forming coupler of formula (I): ##STR1## wherein X is H or a coupling-off group, R is H; or R, R.sub.1 and R.sub.2 are the same or different and are co
5989793 Color negative photographic elements with modified scavenging compound distributions November 23, 1999
A color negative photographic element is disclosed containing higher levels of oxidized developer agent scavenging compound in the lowest and intermediate sensitivity layers of a triple-coated image recording unit than in the fast layer. Reduced fog and granularity are obtained, and
5985532 Photographic element containing an improved pyrozolotriazole coupler November 16, 1999
The invention provides a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a dye-forming coupler having formula I: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl, aryl, and heterocyclic groups;R.sub
5932407 Color photographic element containing oxidized developer-scavenging naphtholic coupler forming w August 3, 1999
A color photographic element comprising a film support and a first radiation-sensitive layer further includes an oxidized developer-scavenging naphtholic coupler that is substantially immobilized in the element but forms a dye that can be removed from the material during photographic
5856072 Photographic element containing 5-carbamoyl resorcinol interlayer scavenger January 5, 1999
A color photographic element which comprises a light sensitive silver halide emulsion layer and a non-light sensitive interlayer containing a ballasted 5-carbamoyl-1,3-dihydroxybenzene compound. The element exhibits an improved ability to prevent oxidized developer from diffusing away fr
5821039 Photographic element containing neutral dye-forming resorcinol coupler October 13, 1998
A color photographic element which comprises a light sensitive silver halide emulsion layer containing a 5-carbamoyl-1,3-dihydroxybenzene compound having a ClogP of at least 4. The element provides a black and white image using conventional color negative processing.
5681691 Photographic element containing an improved pyrazolotriazole coupler October 28, 1997
The invention provides a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a dye-forming coupler having formula I: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl, aryl, and heterocyclic groups;R.sub
5629140 Photographic elements containing scavengers for oxidized developing agent May 13, 1997
An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a hydrazide compound that functions as a scavenger for oxidized developing agent. The hydrazide compound includes an electron-withdrawing and aqueous-sol
5612173 One equivalent couplers and low PKA release dyes March 18, 1997
A photographic element containing a dye which when released from a coupler has a sufficiently low pKa, generally less than about 5, such that the dye remains substantially or fully ionized during coating of the film and in the produced film, results in an element containing a dye which h
5599656 Photographic materials having releasable compounds February 4, 1997
Photographic elements are disclosed having a first coupler represented by the formula:whereinCOUP.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 containe
5563026 Color negative element having improved green record printer compatibility October 8, 1996
The invention provides a multicolor negative photographic element comprising a support bearing at least two green light sensitive silver halide emulsion layers of differing light sensitivity, the least and only the least sensitive layer containing a 1-phenyl-3-acylamino-4-nitrogenhet
5561036 Photographic elements containing scavengers for oxidized developing agent October 1, 1996
An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a hydroquinone compound that functions as a scavenger for oxidized developing agent. The hydroquinone compound has sufficient bulk that it is substantially
5561035 Photographic elements containing scavengers for oxidized developing agent October 1, 1996
An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a pyrocatechol compound that functions as a scavenger for oxidized developing agent. The pyrocatechol compound has sufficient bulk that it is substantially
5543277 Photographic elements containing scavengers for oxidized developing agent August 6, 1996
An improved photographic element comprises a support bearing at least-one silver halide emulsion layer having associated therewith a hydrazide compound that functions as a scavenger for oxidized developing agent. The hydrazide compound comprises at least one polyhydroxy aromatic nucleus
5492799 Azopyrazolone masking couplers February 20, 1996
The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer having associated therewith a masking coupler comprising:(1) a parent group containing a -1-phenyl-3-anilinopyrazolin-5-one having electron-withdrawing substituen
5478712 Photographic elements protected against color contamination and dye stain December 26, 1995
A ballasted amine is incorporated in a silver halide photographic element which contains a 2,4-disulfonamidophenol which functions as a scavenger for oxidized developing agent. The 2,4-disulfonamidophenol serves to avoid color contamination while the ballasted amine serves to reduce dye
5466568 Photographic element containing an azopyrazolone masking coupler exhibiting reduced fog November 14, 1995
A photographic element and imaging process used therewith provides reduced fogging where the element comprises a light sensitive silver halide layer containing (1) an azopyrazolone masking coupler and (2) a ballasted aromatic nitro compound having a reduction peak potential which is more
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