Inventor
YOKOYAMA MASATO
JP31 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA MASATO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
24 patentsUS6949896B2Sep 27, 2005
Apparatus for and method of driving motor to move object at a constant velocity
RICOH KK54 citations96
US5946529AAug 31, 1999
Image forming apparatus using a roller type charging system
RICOH KK53 citations96
US5878317AMar 2, 1999
Electrophotographic method and apparatus including a toner recycle feature
RICOH KK85 citations96
US5799229AAug 25, 1998
Toner spreading device for a charging roller of an image forming apparatus
RICOH KK69 citations96
US6593951B2Jul 15, 2003
Optical writing system directed to miniaturization thereof, and image forming apparatus employing it
RICOH KK35 citations93
US6416176B1Jul 9, 2002
Ink-jet printing system having an improved sheet transport mechanism
RICOH KK33 citations93
US5321483AJun 14, 1994
Cleaning device for image forming equipment
RICOH KK23 citations93
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
US6719469B2Apr 13, 2004
Ink jet recording apparatus capable of performing a duplex print operation
RICOH KK33 citations92
US5719684AFeb 17, 1998
Image forming apparatus having an endless conveying and transferring belt with an interrupt control
RICOH KK26 citations92
US7535594B2May 19, 2009
Scanning lens for optical scanner, optical scanner, and image forming apparatus
RICOH KK15 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
US7319475B2Jan 15, 2008
Method and apparatus for image forming capable of preventing image quality deterioration induced by heat from an optical deflector
RICOH KK8 citations74
US7218337B2May 15, 2007
Optical scanner, optical-path adjustment method, and image forming apparatus
RICOH KK8 citations74
US6864906B2Mar 8, 2005
Light scanning device and image forming apparatus
RICOH KK9 citations74
US7344326B2Mar 18, 2008
Ink jet recording apparatus capable of performing a duplex print operation
RICOH KK5 citations73
US7800335B2Sep 21, 2010
Method, apparatus, and program for driving a motor in a feedback control system, capable of suppressing motor oscillation
RICOH KK4 citations62
US7712989B2May 11, 2010
Ink jet recording apparatus capable of performing a duplex print operation
RICOH KK2 citations62
NIPPON DENSO CO
2 patentsUS4737090AApr 12, 1988
Movable vane compressor
NIPPON DENSO CO20 citations81
US4560332ADec 24, 1985
Rotary vane-type compressor with vanes of more thermally expansible material than rotor for maintaining separation of rotor from housing side plate during high temperature operation
NIPPON DENSO CO11 citations71