Inventor
CHEN TEH-HSUAN
US20 patents
Patents
20 patentsUS5151343ASep 29, 1992
Photographic material and process comprising wash-out naphtholic coupler
EASTMAN KODAK CO23 citations92
US5026628AJun 25, 1991
Photographic material and process comprising a compound capable of forming a wash-out dye
EASTMAN KODAK CO30 citations92
US5302496AApr 12, 1994
Photographic silver halide materials and process comprising new pyrazoloazole coupler
EASTMAN KODAK CO7 citations73
US5283340AFeb 1, 1994
Photographic material and process comprising wash-out naphtholic coupler
EASTMAN KODAK CO6 citations73
US5234800AAug 10, 1993
Photographic material and process comprising wash-out naphtholic coupler
EASTMAN KODAK CO8 citations73
US5183728AFeb 2, 1993
Photographic silver halide materials and process comprising new pyrazoloazole couplers
EASTMAN KODAK CO10 citations73
US5283163AFeb 1, 1994
Photographic material and process employing a development inhibitor releasing compound containing a fluorinated carbon alpha to an amide group
EASTMAN KODAK CO6 citations72
US5250399AOct 5, 1993
Photographic material and process comprising a universal coupler
EASTMAN KODAK CO3 citations62
US5021322AJun 4, 1991
Photographic element comprising a development inhibitor releasing compound having a linking group between the carrier and the inhibitor
EASTMAN KODAK CO6 citations62
US5709987AJan 20, 1998
Photographic element containing a coupler capable of releasing a photographically useful group through a triazole group
EASTMAN KODAK CO2 citations61
US5306607AApr 26, 1994
Photographic material and process comprising a pyrazolotriazole moiety
EASTMAN KODAK CO3 citations58
US5250398AOct 5, 1993
Photographic silver halide material and process comprising water-solubilized naphtholic coupler
EASTMAN KODAK CO1 citations52
US6007974ADec 28, 1999
Silver halide element containing triazole inhibitors
EASTMAN KODAK CO0 citations51
US5817809AOct 6, 1998
Photographic element containing a coupler capable of releasing a photographically useful group through a triazole group
EASTMAN KODAK CO1 citations50
US5962656AOct 5, 1999
Indazole containing coupler
EASTMAN KODAK CO0 citations48
US5912110AJun 15, 1999
Photographic coupler capable of releasing a photographically useful group
EASTMAN KODAK CO0 citations48
US5834604ANov 10, 1998
Photographic element containing a coupler capable of releasing a photograpically useful group through a pyrazole group
EASTMAN KODAK CO0 citations48
US5719017AFeb 17, 1998
Photographic element containing a coupler capable of releasing a photographically useful group through a pyrazole group
EASTMAN KODAK CO0 citations48
US5686234ANov 11, 1997
Photographic element containing a coupler capable of releasing a photographically useful group
EASTMAN KODAK CO1 citations48
US5670301ASep 23, 1997
Photographic element containing a coupler capable of releasing a photographically useful group
EASTMAN KODAK CO1 citations48