Inventor
YANAGIDA MASATO
JP34 patents
Patents
34 patentsUS5775918AJul 7, 1998
System for making examination papers and having an automatic marking function
RICOH KK65 citations96
US5597311AJan 28, 1997
System for making examination papers and having an automatic marking function
RICOH KK56 citations96
US5970282AOct 19, 1999
Method of cleaning a surface in an image forming apparatus by feeding toner to the surface
RICOH KK44 citations95
US5881339AMar 9, 1999
Image forming apparatus having a cleaning blade for removing deposited toner
RICOH KK44 citations95
US7266324B2Sep 4, 2007
Charging device, and process cartridge and image forming apparatus using the charging device
RICOH KK18 citations93
US7139504B2Nov 21, 2006
Charging device, and process cartridge and image forming apparatus using the charging device
RICOH KK24 citations93
US7050741B2May 23, 2006
Imaging apparatus, and toner and process cartridge used in the imaging apparatus
RICOH KK20 citations93
US6665512B1Dec 16, 2003
Image forming apparatus
RICOH KK19 citations93
US7272354B2Sep 18, 2007
Cleaning unit and image forming apparatus having multiple cleaning blades
RICOH KK27 citations92
US7228099B2Jun 5, 2007
Cleaning device for cleaning a surface of an image support body
RICOH KK21 citations92
US7149465B2Dec 12, 2006
Cleaning unit, process cartridge, image forming apparatus, and toner
RICOH KK26 citations92
US7110696B2Sep 19, 2006
Cleaning unit, process cartridge, and image forming apparatus
RICOH KK27 citations92
US7062194B2Jun 13, 2006
Charging device, and process cartridge and image forming apparatus including the charging device
RICOH KK31 citations92
US6539189B2Mar 25, 2003
Image bearing member rotation control device, and image forming apparatus and method using the image bearing member rotation control device
RICOH KK27 citations92
US6032006AFeb 29, 2000
Image forming apparatus having an improved cleaning mechanism and method thereof
RICOH KK28 citations92
US6023342AFeb 8, 2000
Image processing device which transfers scanned sheets to a printing region
RICOH KK30 citations92
US5396319AMar 7, 1995
Cleaning device for an image forming apparatus
RICOH KK32 citations92
US5184184AFeb 2, 1993
Image forming apparatus
RICOH KK25 citations92
US4984024AJan 8, 1991
Image transfer unit for image recording apparatus
RICOH KK39 citations92
US7826786B2Nov 2, 2010
Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner
RICOH KK17 citations84
US7430377B2Sep 30, 2008
Image forming apparatus and process cartridge having a detachable unit body having a lubricant applying unit and image carrier mounted thereon
RICOH KK12 citations84
US7295796B1Nov 13, 2007
Image forming apparatus having a temporary toner holding device and a toner collecting device
RICOH KK14 citations84
US7218877B2May 15, 2007
Charging device, and process cartridge and image forming apparatus including the charging device using the same
RICOH KK12 citations84
US7085528B2Aug 1, 2006
Cleaning unit, process cartridge, and image forming apparatus
RICOH KK12 citations84
US7542712B2Jun 2, 2009
Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridge
RICOH KK15 citations83
US7493075B2Feb 17, 2009
Cleaning device, process cartridge and image forming apparatus
RICOH KK13 citations83
US7386257B2Jun 10, 2008
Imaging apparatus, and toner and process cartridge used in the imaging apparatus
RICOH KK7 citations74
US7130564B2Oct 31, 2006
Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming
RICOH KK8 citations74
US7065316B2Jun 20, 2006
Cleaning unit, process cartridge, image forming apparatus, and toner
RICOH KK10 citations74
US5600428AFeb 4, 1997
Sheet separator for an image forming apparatus
RICOH KK17 citations74
US7400844B2Jul 15, 2008
Image forming apparatus and process cartridge with a cleaner for removing toner from an image bearing member
RICOH KK2 citations63
US6801737B2Oct 5, 2004
Image forming apparatus including an image carrier driving mechanism
RICOH KK4 citations63
US7539451B2May 26, 2009
Image forming apparatus and toner
RICOH KK5 citations62
US6947696B2Sep 20, 2005
Image forming apparatus
RICOH KK0 citations52