Inventor
YOKOTA YUKIO
25 patents
⚠️ This page may combine multiple inventors who share the name “YOKOTA YUKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI PHOTO FILM CO LTD
24 patentsUS4690889ASep 1, 1987
Silver halide color photographic light-sensitive material containing novel cyan dye forming coupler
FUJI PHOTO FILM CO LTD34 citations92
US4334011AJun 8, 1982
Color photographic light sensitive materials
FUJI PHOTO FILM CO LTD32 citations92
US4327173AApr 27, 1982
Color photographic light-sensitive material
FUJI PHOTO FILM CO LTD35 citations92
US4239851ADec 16, 1980
Silver halide photographic light-sensitive material
FUJI PHOTO FILM CO LTD31 citations92
US4146396AMar 27, 1979
Method of forming color photographic images
FUJI PHOTO FILM CO LTD39 citations92
US4296200AOct 20, 1981
Silver halide photographic light-sensitive material
FUJI PHOTO FILM CO LTD25 citations82
US4296199AOct 20, 1981
Silver halide photographic light-sensitive material
FUJI PHOTO FILM CO LTD21 citations82
US4254212AMar 3, 1981
Photographic silver halide light-sensitive material and color image-forming process
FUJI PHOTO FILM CO LTD25 citations82
US4228233AOct 14, 1980
Photographic silver halide light-sensitive material
FUJI PHOTO FILM CO LTD29 citations82
US4163670AAug 7, 1979
Color photographic material
FUJI PHOTO FILM CO LTD28 citations82
US4138258AFeb 6, 1979
Multi-layered color photographic materials
FUJI PHOTO FILM CO LTD27 citations82
US4076533AFeb 28, 1978
Silver halide emulsion containing two-equivalent coupler
FUJI PHOTO FILM CO LTD17 citations74
US4083721AApr 11, 1978
Photographic phenolic couplers with amido coupling-off groups
FUJI PHOTO FILM CO LTD7 citations73
US4072525AFeb 7, 1978
Silver halide photographic material containing two-equivalent color coupler
FUJI PHOTO FILM CO LTD8 citations73
US3935015AJan 27, 1976
Silver halide color photographic materials containing 3-anilino-5-pyrazolane couplers
FUJI PHOTO FILM CO LTD15 citations73
US4345025AAug 17, 1982
Color photographic silver halide light-sensitive material
FUJI PHOTO FILM CO LTD2 citations63
US4342818AAug 3, 1982
Process for forming color filter
FUJI PHOTO FILM CO LTD6 citations63
US4294918AOct 13, 1981
Color photographic silver halide light-sensitive material
FUJI PHOTO FILM CO LTD2 citations63
US4288532ASep 8, 1981
Color photographic materials containing cyan color-forming couplers
FUJI PHOTO FILM CO LTD6 citations62
US4046573ASep 6, 1977
Color photographic materials
FUJI PHOTO FILM CO LTD6 citations62
US3960571AJun 1, 1976
Silver halide color photographic light-sensitive material
FUJI PHOTO FILM CO LTD5 citations62
US4282312AAug 4, 1981
Color image forming process
FUJI PHOTO FILM CO LTD0 citations52
US4264722AApr 28, 1981
Silver halide photographic light-sensitive material
FUJI PHOTO FILM CO LTD1 citations52
US4032345AJun 28, 1977
Silver halide materials containing photographic color couplers with isothiocyanato groups
FUJI PHOTO FILM CO LTD0 citations52