Inventor
YUYAMA YUKIHIRO
JP7 patents
Patents
7 patentsUS4950638AAug 21, 1990
Thermosensitive recording material having recording layer containing fluorescent dye composition
RICOH KK75 citations94
US4388362AJun 14, 1983
Released heat-sensitive recording paper
RICOH KK77 citations94
US4551738ANov 5, 1985
Thermosensitive recording material
RICOH KK34 citations91
US4444819AApr 24, 1984
Thermosensitive recording material
RICOH KK35 citations91
US4424245AJan 3, 1984
Thermosensitive-recording-type label sheet
RICOH KK46 citations91
US4727054AFeb 23, 1988
Thermosensitive recording material
RICOH KK11 citations73
US4711874ADec 8, 1987
Thermosensitive recording adhesive sheet
RICOH KK15 citations73