Inventor

SCHUMANN HANS-JOACHIM

DE6 patents

⚠️ This page may combine multiple inventors who share the name “SCHUMANN HANS-JOACHIM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AGFA GEVAERT AG

5 patents

US4543308ASep 24, 1985

Photographic recording process

AGFA GEVAERT AG38 citations91

US4835094AMay 30, 1989

Color photographic recording material containing a color coupler of the pyrazoloazole series

AGFA GEVAERT AG9 citations72

US4460274AJul 17, 1984

Process for the luminescense-spectroscopic examination of coatings and coating profiles

AGFA GEVAERT AG18 citations69

US5035987AJul 30, 1991

Color photographic recording material containing a DIR coupler

AGFA GEVAERT AG5 citations61

US5200305AApr 6, 1993

Color photographic recording material containing color couplers which yield heat-stable dyes

AGFA GEVAERT AG0 citations40

AGFA GEVAERT

1 patent

US6228568B1May 8, 2001

Color photographic recording material

AGFA GEVAERT0 citations47