Inventor
NAKAHARA TOMOTOSHI
JP36 patents
⚠️ This page may combine multiple inventors who share the name “NAKAHARA TOMOTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
35 patentsUS6628908B2Sep 30, 2003
Toner supply unit and image forming apparatus
RICOH KK175 citations99
US6591077B2Jul 8, 2003
Image forming apparatus and toner container therefor
RICOH KK143 citations99
US6507720B2Jan 14, 2003
Color image forming apparatus and toner replenishing apparatus each including plural toner containers received in receiving member of setting part and toner containers therefor
RICOH KK209 citations99
US6393241B1May 21, 2002
Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery toner
RICOH KK181 citations99
US6567637B2May 20, 2003
Apparatus and method for replenishing a developing device with toner while suppressing toner remaining
RICOH KK105 citations98
US6501913B2Dec 31, 2002
Container, its support structure, and image formation apparatus
RICOH KK100 citations98
US7130558B2Oct 31, 2006
Toner supply unit and image forming apparatus
RICOH KK32 citations96
US6898407B2May 24, 2005
Desktop color image forming apparatus and method of making the same
RICOH KK61 citations96
US6748190B2Jun 8, 2004
Apparatus and method for replenishing a developing device with toner while suppressing toner remaining
RICOH KK42 citations96
US6567643B2May 20, 2003
Apparatuses for color image formation, tandem color image formation and image formation
RICOH KK38 citations96
US7209689B2Apr 24, 2007
Toner supply unit and image forming apparatus
RICOH KK20 citations93
US7088945B2Aug 8, 2006
Toner supply unit and image forming apparatus
RICOH KK13 citations93
US7263309B2Aug 28, 2007
Desktop color image forming apparatus and method of making the same
RICOH KK15 citations92
US6973283B2Dec 6, 2005
Color image forming apparatus, and toner replenishing apparatus
RICOH KK20 citations92
US5869213AFeb 9, 1999
Multicolor image forming method preventing contamination of toner on an image carrier with toner on a developing carrier
RICOH KK23 citations92
US5640229AJun 17, 1997
Image forming apparatus having a positioning device for a developing unit
RICOH KK35 citations92
US5541029AJul 30, 1996
Multicolor image forming method preventing mixing of colors
RICOH KK38 citations92
US7356290B2Apr 8, 2008
Toner supply unit and image forming apparatus
RICOH KK9 citations84
US7333749B2Feb 19, 2008
Desktop color image forming apparatus and method of making the same
RICOH KK10 citations84
US7289748B2Oct 30, 2007
Apparatus and method for replenishing a developing device with toner while suppressing toner remaining
RICOH KK10 citations84
US7218880B2May 15, 2007
Apparatus and method for replenishing a developing device with toner while suppressing toner remaining
RICOH KK10 citations84
US6801749B2Oct 5, 2004
Apparatuses for color image formation, tandem color image formation and image formation
RICOH KK12 citations82
US6493532B2Dec 10, 2002
Slide-rotating collar protecting rotatable resin shaft
RICOH KK15 citations79
US7542697B2Jun 2, 2009
Toner supply unit and image forming apparatus
RICOH KK7 citations74
US7212764B2May 1, 2007
Color image forming apparatus, and toner replenishing apparatus
RICOH KK7 citations74
US6785504B2Aug 31, 2004
Apparatuses for color image formation, tandem color image formation and image formation
RICOH KK5 citations74
US6766137B2Jul 20, 2004
Apparatuses for color image formation, tandem color image formation and image formation
RICOH KK4 citations74
US5280362AJan 18, 1994
Digital copier for copying a bicolored document at the same speed as a monocolored document
RICOH KK9 citations74
US5258813ANov 2, 1993
Developing device for a multicolor image forming apparatus having a toner particle size distribution which prevents mixture of toners of different colors
RICOH KK8 citations74
US7606521B2Oct 20, 2009
Desktop color image forming apparatus and method of making the same
RICOH KK3 citations63
US7436417B2Oct 14, 2008
Color image forming apparatus, and toner replenishing apparatus
RICOH KK2 citations63
US7406283B2Jul 29, 2008
Desktop color image forming apparatus and method of making the same
RICOH KK3 citations63
US6879791B2Apr 12, 2005
Method of positioning image forming means and positioning jig for the same
RICOH KK2 citations63
US6795682B2Sep 21, 2004
Image forming apparatus including a cleaning unit
RICOH KK4 citations63
US7457561B2Nov 25, 2008
Color image forming apparatus, and toner replenishing apparatus
RICOH KK0 citations52