P

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 patents
US4690889ASep 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

TOSHIBA KK

1 patent