Minnesota Mining and Manufacturing Company

Other

Eastman-kodak Company

Imation Corporation

Tulalip Consultoria Commerial Sociedade Unipessoal S.a.

Mark P Kirk

Dian E Stevenson

Randall H Helland

Roger A Mader

Terence D Spawn

Andrew W Mott

Jonathan P Kitchin

Kumars Sakizadeh

George V Tiers

William Donald Ramsden

Mark B Mizen

Richard A Newmark

Sylvia A Farnum

William C Frank

Massimo Bertoldi

Raffaella Biavasco

Ronald W Burrows

Kevin P Hall

Keiichi Funaki

Stefano Parodi

Kevin C Odorczyk

David B Oliff

Paolo Vacca

Susan H Dunn

Giovanni Giribone

Philip I Mayo

Jonathan P, Kitchin

John L Petrucci

Valerie Millar

A method of configuring a storage phosphor reader. The method comprises the steps of: providing a database of user-selectable image processing parameters wherein the image processing parameters are grouped by geographical region; allowing an operator of the storage phosphor reader to select one of the groups of geographical regions; and applying the image processing parameters of the selected group to the storage phosphor reader to configure the reader with the image processing parameters of the selected group.

Regional image processing default parameters

The present invention provides a method of forming a dispersion of solid particles of a dye in a gelatin medium which includes the steps of milling the solid dye in the present of a glycerophospholipid dispersant in an aqueous medium and diluting the resulting dispersion with an aqueous solution containing a gelatin. In addition, a photographic element is provided comprising a support having coated thereon at least one silver halide emulsion layer and at least one additional gelatin layer that contains a dispersion of solid particles of a dye and a glycerophospholipid dispersant.

Formation and photographic use of solid particle dye dispersions

A photothermographic material having a photosensitive medium comprising: photosensitive silver halide, a reducible silver source, a reducing agent for silver ion, a hydrobromic acid salt of a nitrogen-containing heterocyclic ring or fused ring nucleus associated with a pair of bromine atoms CHARACTERIZED IN THAT the photosensitive medium additionally comprises as an antifoggant, substantially in the absence of an antifoggant effective amount of mercury and other heavy metal salts, a tribromomethyl ketone compound of general formula (I): ##STR1## in which; R represents an alkyl group, an aryl group, a carbocyclic ring or fused ring nucleus or a heterocyclic ring or fused ring nucleus.

Photothermographic imaging materials and antifoggants therefor

The present invention relates to a light-sensitive silver halide photographic material comprising a support and silver halide emulsion layer or layers, wherein at least one of said silver halide emulsion layers comprises an alkylaminomercaptotetrazole antifoggant. According to a preferred embodiment of the present invention said silver halide emulsion layer comprises tabular silver halide grains having an average aspect ratio higher than 3:1 and a thickness lower than 0.4 .mu.m.

Silver halide photographic material comprising mercaptotetrazole

The present invention relates to a silver halide photographic material comprising a support and at least one silver halide emulsion layer coated thereon, wherein said silver halide photographic material comprises tabular silver halide grains having an average aspect ratio higher than 3:1 dispersed in highly deionized gelatin, and a pyridinium carbamoyl hardener having the following formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently represents an alkyl group having from 1 to carbon atoms, an aryl group having from 6 to 15 carbon atoms, an aralkyl group having from 7 to 15 carbon atoms, or R.sub.1 and R.sub.2 together form the atoms required to complete a heterocyclic ring, R.sub.3 represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, a carbamoyl group, a ureido group, and R.sub.4 represents an alkylene group having from 1 to 4 carbon atoms or a single chemical bond.

Silver halide photographic material comprising pyridinium carbamoyl

A compound having a nucleus of the formula: ##STR1## The compounds are suitable for use as image stabilisers and antifoggants in photothermographic materials and exhibit acceptably low sensitization of human skin.

Photothermographic materials

A silver halide photographic material having at least one silver halide light-sensitive emulsion layer on at least one side of a support, wherein said silver halide emulsion layer comprises tabular silver halide grains having a grain thickness of 0.3 .mu.m or less and accounting for at least 50% of the total projected area, and a phthalocyanine blue pigment having a maximum absorption wave length of from 640 to 700 nm is present in said silver halide emulsion layer and/or in another hydrophilic layer of the photographic material.

Silver halide photographic material with reduced fog and improved

A compound having a nucleus of the formula: ##STR1## The compounds are suitable for use as image stabilizers and antifoggants in photothermographic materials and exhibit acceptably low sensitization of human skin.

A compound of the formula: ##STR1## wherein; R is a member selected from a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group. The compounds find utility as antifoggants and image stabilisers in photothermographic materials.

A thermal-dye-bleach construction comprising a dye in association with a thermal dye-bleaching agent of general formula I: ##STR1## wherein: each of R.sup.a and R.sup.b are individually selected from: hydrogen, an alkyl group, an alkenyl group, a cycloalkyl group, an aralkyl group, an aryl group, and a heterocyclic group, and preferably, both R.sup.a and R.sup.b represent hydrogen;

Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents

A photothermographic material comprising photographic silver halide, a reducible silver source, a reducing agent for silver ion and a binder, and as an antifoggant and/or stabilizer, a compound of the formula (I): ##STR1## wherein R is a member selected form the group consisting of a hydrogen atom, an alkyl group, an aryl group and a heterocyclic group.

Radiation sensitive thermally developable imaging elements comprise:

Antifoggants for photothermographic articles

Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents

A thermal-dye-bleach construction comprising a polymethine dye having a nucleus of general formula I: ##STR1## in association with a thermal-carbanion-generating agent having the general formula: ##STR2## wherein the substituents are as defined in the specification and claims.

Thermal-dye-bleach construction comprising a polymethine dye and a

A photographic element containing a thermal-dye-bleach construction includes a thermal nucleophile-generating agent in association with a polymethine dye having a nucleus of general formula (I): ##STR1##

Growing community of inventors

Bishop's Stortford, United Kingdom

Mark P Kirk