Inventor
BENTHACK-THOMS HEIDI
DE5 patents
Patents
5 patentsUS4939012AJul 3, 1990
Naphtholactam dyes and optical recording medium containing these dyes
BASF AG35 citations90
US4876356AOct 24, 1989
Naphtholactam dyes and optical recording medium containing these days
BASF AG9 citations72
US4830951AMay 16, 1989
Naphtholactamsquaric acid dyes and optical recording materials containing these dyes
BASF AG4 citations62
US5002863AMar 26, 1991
Naphtholactamtrimethine dyes and optical recording medium containing same
BASF AG1 citations51
US4904566AFeb 27, 1990
Optical recording medium containing an azulenium dye
BASF AG1 citations51