Inventor
FURUTA HIDEYA
JP19 patents
Patents
19 patentsUS4933727AJun 12, 1990
Color recording apparatus
RICOH KK72 citations96
US5121170AJun 9, 1992
Device for transporting sheet members using an alternating voltage
RICOH KK72 citations95
US6057869AMay 2, 2000
Image forming apparatus for fixing a toner image at a first speed or at a second speed
RICOH KK22 citations92
US5321475AJun 14, 1994
Color image forming apparatus which accelerates or decelerates the developing sleeves at a constant rate
RICOH KK21 citations92
US5164783ANov 17, 1992
Image forming apparatus for the synchronizing of laser writer with photosensitive body to prevent time lag
RICOH KK28 citations92
US4690542ASep 1, 1987
Color copying apparatus
RICOH KK28 citations92
US4664501AMay 12, 1987
Method of and apparatus for producing duplicates in color
RICOH KK29 citations92
US4662739AMay 5, 1987
Method of controlling copying machine operation
RICOH KK26 citations92
US4655579AApr 7, 1987
Multicolored image forming apparatus
RICOH KK28 citations92
US4615607AOct 7, 1986
Dual-color copier
RICOH KK27 citations92
US5160969ANov 3, 1992
Image forming apparatus having a separate black developer stored for a color image
RICOH KK52 citations91
US5926670AJul 20, 1999
Image forming apparatus cleaning an intermediate transfer member carrying a concurrently existing plurality of toner image pages
RICOH KK30 citations90
US4796050AJan 3, 1989
Mechanism for driving photosensitive drums
RICOH KK43 citations89
US4690541ASep 1, 1987
Color electrophotographic copying process
RICOH KK21 citations79
US5083141AJan 21, 1992
Image forming apparatus
RICOH KK9 citations74
US4746950AMay 24, 1988
Color copier
RICOH KK13 citations74
US5825398AOct 20, 1998
Image forming apparatus using a synchronized transfer medium driver
RICOH KK10 citations73
US5631691AMay 20, 1997
Image forming apparatus
RICOH KK14 citations73
US4742371AMay 3, 1988
Optical system for color copier
RICOH KK16 citations72