Inventor
ARAKI SHIGEYUKI
12 patents
Patents
12 patentsUS4661822AApr 28, 1987
Ink jet printer
RICOH KK33 citations89
US5146240ASep 8, 1992
Image forming apparatus with plural dot densities
RICOH KK21 citations80
US4160200AJul 3, 1979
Servo control apparatus
RICOH KK24 citations80
US4611216ASep 9, 1986
Charged ink particles detection housing
RICOH KK10 citations73
US4495455AJan 22, 1985
Multi-phase stepping motor controller
RICOH KK9 citations73
US4493570AJan 15, 1985
Control system for impact printer
RICOH KK13 citations73
US4262592AApr 21, 1981
Hammer drive apparatus for impact printer
RICOH KK17 citations73
US4039919AAug 2, 1977
Multi-phase motor controller
RICOH KK9 citations72
US3997829ADec 14, 1976
Multi-phase stepping motor controller
RICOH KK11 citations72
US4598301AJul 1, 1986
Thermal printer
RICOH KK11 citations71
US4339702AJul 13, 1982
Stepping motor drive apparatus
RICOH KK2 citations61
US4307967ADec 29, 1981
Serial printing apparatus
RICOH KK4 citations57