Inventor
YOKOKAWA NOBUTO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “YOKOKAWA NOBUTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
22 patentsUS6125243ASep 26, 2000
Toner replenishing and developer replacing device for a developing unit of an image forming apparatus
RICOH KK106 citations97
US5999773ADec 7, 1999
Image forming apparatus and cleaning method for contact-charging member
RICOH KK92 citations97
US5915155AJun 22, 1999
Toner replenishing and developer replacing device for a developing unit of an image forming apparatus
RICOH KK110 citations97
US6949896B2Sep 27, 2005
Apparatus for and method of driving motor to move object at a constant velocity
RICOH KK54 citations96
US6295438B1Sep 25, 2001
Method and apparatus for forming an image capable of supplying a proper amount of a lubricant to each image forming section
RICOH KK80 citations96
US5774772AJun 30, 1998
Toner cartridge having a toner stirring member
RICOH KK66 citations96
US5638159AJun 10, 1997
Developing unit for an image forming apparatus and method of collecting bicomponent developer therefrom
RICOH KK81 citations96
US5606408AFeb 25, 1997
Image forming apparatus and cleaning device therefor
RICOH KK73 citations96
US5598254AJan 28, 1997
Cartridge for replenishing two-ingredient developer to an image forming apparatus and a replenishing device using the same
RICOH KK54 citations96
US7509074B2Mar 24, 2009
Method and apparatus for image forming capable of effectively reducing unevenness of density and color displacement of images
RICOH KK16 citations92
US7386262B2Jun 10, 2008
Belt driving control apparatus and image forming apparatus which uses a moving average process and a revolution average process
RICOH KK34 citations92
US7376375B2May 20, 2008
Belt-drive control device, color-shift detecting method, color-shift detecting device, and image forming apparatus
RICOH KK47 citations92
US7257339B2Aug 14, 2007
Method and apparatus for image forming capable of effectively reducing unevenness of density and color displacement of images
RICOH KK17 citations92
US7251444B2Jul 31, 2007
Apparatus for controlling driving of endless belt, and image forming apparatus
RICOH KK25 citations92
US7110700B2Sep 19, 2006
Belt driving controller, process cartridge, and image forming apparatus
RICOH KK22 citations92
US5619316AApr 8, 1997
Image forming apparatus
RICOH KK53 citations92
US7627268B2Dec 1, 2009
Image forming apparatus capable of providing a stable belt movement in a belt unit
RICOH KK10 citations84
US7454150B2Nov 18, 2008
Image forming apparatus having a resist rotary member
RICOH KK16 citations84
US7330009B2Feb 12, 2008
Method, apparatus, and program for driving a motor in a feedback control system, capable of suppressing motor oscillation
RICOH KK16 citations84
US7373093B2May 13, 2008
Apparatus and method for color image forming, and computer program product for driver controller
RICOH KK14 citations81
US7609998B2Oct 27, 2009
Transfer unit and image forming apparatus
RICOH KK6 citations63
US7800335B2Sep 21, 2010
Method, apparatus, and program for driving a motor in a feedback control system, capable of suppressing motor oscillation
RICOH KK4 citations62