Inventor
KAWAKAMI TOMIKO
6 patents
Patents
6 patentsUS4297426AOct 27, 1981
Electrophotographic element with carbazole hydrazone or anile charge transport compounds
RICOH KK224 citations98
US4338388AJul 6, 1982
Electrophotographic element with a phenyhydrazone charge transport layer
RICOH KK122 citations96
US4508570AApr 2, 1985
Aqueous ink for ink-jet printing
RICOH KK135 citations94
US4325871AApr 20, 1982
Ortho-Bis (2-substituted azostyryl) benzene compounds
RICOH KK26 citations82
US4247614AJan 27, 1981
Electrophotographic element containing a disazo pigment
RICOH KK13 citations74
US4268596AMay 19, 1981
Electrophotographic element having 1,4-bis(azostyryl)-2,5 dimethoxy benzene compounds as photoconductors
RICOH KK6 citations62