Inventor
SUDO KAZUHISA
JP56 patents
⚠️ This page may combine multiple inventors who share the name “SUDO KAZUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
34 patentsUS6665508B2Dec 16, 2003
Toner container and image forming apparatus using the same
RICOH KK117 citations99
US6628908B2Sep 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
US6522855B1Feb 18, 2003
Image forming apparatus and developing apparatus preventing uneven image density
RICOH KK161 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
US6337957B1Jan 8, 2002
Image forming apparatus and developing device with improved self toner density control
RICOH KK191 citations99
US7212773B2May 1, 2007
Image forming apparatus
RICOH KK107 citations98
US7184691B2Feb 27, 2007
Toner container, toner supply device and image forming apparatus
RICOH KK81 citations98
US6826381B2Nov 30, 2004
Image formation device and agent supplying device including absorber conveying by negative pressure
RICOH KK105 citations98
US6775503B2Aug 10, 2004
Image forming apparatus with improved capabilities for toner supply
RICOH KK79 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
US7130567B2Oct 31, 2006
Toner container and image forming apparatus using the same
RICOH KK30 citations96
US6813460B2Nov 2, 2004
Toner container and image forming apparatus using the same
RICOH KK34 citations96
US5394231AFeb 28, 1995
Image forming apparatus capable of forming an erasable image
RICOH KK105 citations96
US5592267AJan 7, 1997
Image forming apparatus using fresh toner and used toner
RICOH KK80 citations95
US5638158AJun 10, 1997
Image formation apparatus
RICOH KK85 citations94
US7412191B2Aug 12, 2008
Toner container and image forming apparatus using the same
RICOH KK16 citations93
US7209687B2Apr 24, 2007
Toner container and image forming apparatus using the same
RICOH KK23 citations93
US7209689B2Apr 24, 2007
Toner supply unit and image forming apparatus
RICOH KK20 citations93
US7162188B2Jan 9, 2007
Toner container and image forming apparatus using the same
RICOH KK12 citations93
US7158742B2Jan 2, 2007
Toner container and image forming apparatus using the same
RICOH KK17 citations93
US7110704B2Sep 19, 2006
Toner container and image forming apparatus using the same
RICOH KK15 citations93
US7088945B2Aug 8, 2006
Toner supply unit and image forming apparatus
RICOH KK13 citations93
US7577379B2Aug 18, 2009
Toner container, toner supply device and image forming apparatus
RICOH KK42 citations92
US7272342B2Sep 18, 2007
Image forming apparatus having a detachable cartridge including a photoconductive drum with axis shaft having a minimal rotational eccentricity, and a method of assembling the image forming apparatus
RICOH KK26 citations92
US7043182B2May 9, 2006
Developer regulating member, developing device, electrophotographic image forming process cartridge, and image forming apparatus including the developer regulating member
RICOH KK35 citations92
US7817953B2Oct 19, 2010
Image recording medium, sheet feeding device, and image forming apparatus
RICOH KK11 citations84
US7356290B2Apr 8, 2008
Toner supply unit and image forming apparatus
RICOH KK9 citations84
US7542697B2Jun 2, 2009
Toner supply unit and image forming apparatus
RICOH KK7 citations74
US7587152B2Sep 8, 2009
Powder transport device and image forming system
RICOH KK4 citations63
US7773918B2Aug 10, 2010
Imaging apparatus having particle supply and collection apparatus arranged outside imaging apparatus
RICOH KK1 citations61
US7463853B2Dec 9, 2008
Particle supply apparatus, imaging apparatus, and monitoring system
RICOH KK3 citations61
US7826778B2Nov 2, 2010
Powder supplying device and image forming device
RICOH KK0 citations51
RICOH CO LTD
9 patentsUS7962069B2Jun 14, 2011
Toner container, image forming apparatus, method of recycling toner container
RICOH CO LTD19 citations93
US8385793B2Feb 26, 2013
Image forming apparatus preventing gaps between a conveyor belt and transfer sheet
RICOH CO LTD8 citations84
US8023877B2Sep 20, 2011
Image forming apparatus capable of forming glossy color image
RICOH CO LTD5 citations62
US8010005B2Aug 30, 2011
Image forming apparatus
RICOH CO LTD4 citations62
US7997320B2Aug 16, 2011
Sheet cutter and image forming apparatus including the sheet cutter
RICOH CO LTD3 citations62
US7883089B2Feb 8, 2011
Image forming apparatus
RICOH CO LTD3 citations62
US7865121B2Jan 4, 2011
Image forming apparatus and recording medium
RICOH CO LTD2 citations62
US7960084B2Jun 14, 2011
Method of preparing information recording medium
RICOH CO LTD0 citations51
US7909081B2Mar 22, 2011
Sheet laminator, image forming apparatus, and sheet laminating method
RICOH CO LTD1 citations51
NISSAN CHEMICAL IND LTD
3 patentsUS5691276ANov 25, 1997
Herbicidal composition comprising a fluoropropylthiazoline sulfonylurea derivative and another herbicide
NISSAN CHEMICAL IND LTD4 citations62
US5773388AJun 30, 1998
Pyrimidine derivatives, herbicides and plant growth regulators
NISSAN CHEMICAL IND LTD4 citations61
US5763365AJun 9, 1998
Fluoropropylthiazoline derivatives and herbicides
NISSAN CHEMICAL IND LTD2 citations61
SUZUKI HIROKATSU
1 patentKUMA KAZUOSA
1 patentKAWAHARA SHINICHI
1 patentSUDO KAZUHISA
1 patentShowing the top 50 of 56 patents by PatentIndex Score.