Inventor
FUKAZAWA TAKAO
JP10 patents
Patents
10 patentsUS4045802AAug 30, 1977
Ink ejection printing apparatus comprising automatically actuated ejection orifice cap
RICOH KK129 citations96
US4595948AJun 17, 1986
Multicolor ink jet recording apparatus having means for preventing blurring of ink
RICOH KK84 citations95
US4642653AFeb 10, 1987
Multi-tone recording method for ink jet printer
RICOH KK32 citations92
US4604631AAug 5, 1986
Control system and method for charge control ink jet printer
RICOH KK47 citations92
US4598299AJul 1, 1986
Deflection control ink jet printing apparatus
RICOH KK32 citations92
US4245224AJan 13, 1981
Drive circuit for ink jet discharging head
RICOH KK34 citations92
US4183029AJan 8, 1980
Ink filter clogging sensor and indicator
RICOH KK45 citations92
US4437101AMar 13, 1984
Ink jet printing apparatus
RICOH KK14 citations73
US4430658AFeb 7, 1984
Apparatus for detecting deflection of a charged ink droplet.
RICOH KK10 citations73
US4271366AJun 2, 1981
Analog signal delay circuit
RICOH KK4 citations63