Inventor
BAGCHI PRANAB
US49 patents
⚠️ This page may combine multiple inventors who share the name “BAGCHI PRANAB”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EASTMAN KODAK CO
45 patentsUS5896155AApr 20, 1999
Ink transfer printing apparatus with drop volume adjustment
EASTMAN KODAK CO310 citations97
US5726693AMar 10, 1998
Ink printing apparatus using ink surfactants
EASTMAN KODAK CO205 citations97
US5916358AJun 29, 1999
Ink compositions containing surfactant sols comprising mixtures of solid surfactants
EASTMAN KODAK CO105 citations96
US4970139ANov 13, 1990
Methods of preparation of precipitated coupler dispersions with increased photographic activity
EASTMAN KODAK CO31 citations93
US4920004AApr 24, 1990
Gelatin-grafted polymer particles
EASTMAN KODAK CO29 citations93
US5397695AMar 14, 1995
Attachment of compounds to polymeric particles using carbamoylonium compounds and a kit containing same
EASTMAN KODAK CO25 citations92
US5135844AAug 4, 1992
Preparation of low viscosity small particle photographic dispersions in gelatin
EASTMAN KODAK CO22 citations92
US5091296AFeb 25, 1992
Polymer co-precipitated coupler dispersion
EASTMAN KODAK CO23 citations92
US5066572ANov 19, 1991
Control of pressure-fog with gelatin-grafted and case-hardened gelatin-grafted soft polymer latex particles
EASTMAN KODAK CO36 citations92
US5026632AJun 25, 1991
Use of gelatin-grafted and case-hardened gelatin-grafted polymer particles for relief from pressure sensitivity of photographic products
EASTMAN KODAK CO26 citations91
US4855219AAug 8, 1989
Photographic element having polymer particles covalently bonded to gelatin
EASTMAN KODAK CO43 citations91
US4933270AJun 12, 1990
Process for the precipitation of stable colloidal dispersions of base degradable components of photographic systems in the absence of polymeric steric stabilizers
EASTMAN KODAK CO21 citations82
US5252425AOct 12, 1993
Hard copy imaging system
EASTMAN KODAK CO7 citations74
US5104776AApr 14, 1992
Increased photographic activity precipitated coupler dispersions prepared by coprecipitation with liquid carboxylic acids
EASTMAN KODAK CO9 citations74
US5089380AFeb 18, 1992
Methods of preparation of precipitated coupler dispersions with increased photographic activity
EASTMAN KODAK CO13 citations74
US5591568AJan 7, 1997
High dye stability, high activity, low stain and low viscosity small particle yellow dispersion melt for color paper and other photographic systems
EASTMAN KODAK CO5 citations73
US5358831AOct 25, 1994
High dye stability, high activity, low stain and low viscosity small particle yellow dispersion melt for color paper and other photographic systems
EASTMAN KODAK CO8 citations73
US5300418AApr 5, 1994
Viscosity control of photographic melts
EASTMAN KODAK CO14 citations73
US5279931AJan 18, 1994
Polymer co-precipitated coupler dispersion
EASTMAN KODAK CO8 citations73
US5055379AOct 8, 1991
Photoresist dichromate composition containing gelatin coated particles
EASTMAN KODAK CO17 citations73
US5013640AMay 7, 1991
Preparation of low viscosity small-particle photographic dispersions in gelatin
EASTMAN KODAK CO19 citations73
US5248558ASep 28, 1993
Case-hardened gelatin-grafted polymer particles
EASTMAN KODAK CO17 citations72
US5491052AFeb 13, 1996
Yellow layer for color photographic elements
EASTMAN KODAK CO8 citations71
US5378598AJan 3, 1995
Use of acid processed ossein gelatin and chain-extened acid processed ossein gelatin as peptizers in the preparation of photographic emulsions
EASTMAN KODAK CO11 citations71
US5693461ADec 2, 1997
Mixed packet color photographic system
EASTMAN KODAK CO13 citations70
US5318889AJun 7, 1994
Use of chain-extended acid processed ossein gelatin in the preparation of photographic elements
EASTMAN KODAK CO8 citations70
US5158863AOct 27, 1992
Methods of forming stable dispersions of photographic materials
EASTMAN KODAK CO11 citations70
US4990431AFeb 5, 1991
Methods of forming stable dispersions of photographic materials
EASTMAN KODAK CO15 citations70
US5395748AMar 7, 1995
Ballasted optical brighteners
EASTMAN KODAK CO3 citations63
US5182189AJan 26, 1993
Increased photographic activity precipitated coupler dispersions prepared by coprecipitation with liquid carboxylic acids
EASTMAN KODAK CO4 citations63
US5610002AMar 11, 1997
Photographic composition containing a thickening agent
EASTMAN KODAK CO6 citations62
US5426020AJun 20, 1995
Pressure sensitivity relief for photographic products
EASTMAN KODAK CO5 citations62
US5393650AFeb 28, 1995
Pressure sensitivity relief for photographic products
EASTMAN KODAK CO5 citations62
US5366842ANov 22, 1994
Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability
EASTMAN KODAK CO2 citations62
US5264317ANov 23, 1993
Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability
EASTMAN KODAK CO2 citations62
US5185230AFeb 9, 1993
Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability
EASTMAN KODAK CO4 citations62
US5503972AApr 2, 1996
Gelatin-grafted-polymer particles as peptizer for silver halide emulsions
EASTMAN KODAK CO2 citations61
US5441865AAug 15, 1995
Gelatin-grafted-polymer particles as peptizer for silver halide emulsions
EASTMAN KODAK CO2 citations61
US5399480AMar 21, 1995
Attachment of gelatin-grafted polymer particles to pre-precipitated silver halide grains
EASTMAN KODAK CO3 citations61
US5565309AOct 15, 1996
Oxygen barrier coated photographic agent milled dispersion particles for enhanced dye-stability
EASTMAN KODAK CO2 citations60
US5536630AJul 16, 1996
Use of acid processed ossein gelatin and chain-extended acid processed ossein gelatin as peptizers in the preparation of photographic elements
EASTMAN KODAK CO3 citations60
US5385812AJan 31, 1995
Continuous manufacture of gelled microprecipitated dispersion melts
EASTMAN KODAK CO3 citations60
US5741633AApr 21, 1998
Attachment of gelatin-grafted polymer particles to pre-precipitated silver halide grains
EASTMAN KODAK CO1 citations59
US5370966ADec 6, 1994
Surfactant dye-diffusion-transfer facilitating thermal solvents for image separation systems
EASTMAN KODAK CO1 citations52
US5543283AAug 6, 1996
Attachment of gelatin-grafted plymer particles to pre-precipitated silver halide grains
EASTMAN KODAK CO0 citations51