Inventor
EHARA YASUHISA
JP33 patents
⚠️ This page may combine multiple inventors who share the name “EHARA YASUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
16 patentsUS7587157B2Sep 8, 2009
Image forming apparatus capable of correcting a rotation speed of an image carrier
RICOH KK30 citations93
US7693468B2Apr 6, 2010
Image forming apparatus capable of effectively forming a quality color image
RICOH KK22 citations92
US7653332B2Jan 26, 2010
Image forming apparatus having enhanced controlling method for reducing deviation of superimposed images
RICOH KK23 citations92
US7630657B2Dec 8, 2009
Method, apparatus, and program for image forming capable of effectively adjusting positional deviation
RICOH KK23 citations92
US6889022B2May 3, 2005
Rotationally phase-matched driving device and image forming apparatus including the same
RICOH KK19 citations89
US7729024B2Jun 1, 2010
Color drift error correcting method and image forming apparatus
RICOH KK16 citations84
US7697867B2Apr 13, 2010
Image forming apparatus with fluctuation-pattern detection and fine-tuning-pattern correction
RICOH KK11 citations84
US7532842B2May 12, 2009
Color printing apparatus capable of color registration difference correction
RICOH KK14 citations84
US7373097B2May 13, 2008
Printer engine and color image forming device using this printer engine for preventing deviation of transfer positions and overlap deviation
RICOH KK19 citations84
US7013102B2Mar 14, 2006
Image forming apparatus and method for preventing local damage of gears and controlling deviation of position of color images
RICOH KK11 citations84
US7603061B2Oct 13, 2009
Image forming apparatus
RICOH KK10 citations77
US6898400B2May 24, 2005
Drive apparatus for a rotary member, an image forming apparatus, and a method of assembly for a drive apparatus
RICOH KK11 citations74
US7778575B2Aug 17, 2010
Imaging apparatus adjusting a rotational stop phase based on a calculated rotational phase
RICOH KK6 citations63
US7606505B2Oct 20, 2009
Image forming method and apparatus capable of effectively performing charging operation
RICOH KK4 citations63
US7366431B2Apr 29, 2008
Developing device, process cartridge and image forming apparatus
RICOH KK4 citations63
US7162185B2Jan 9, 2007
Transmission for image formation apparatus, method of manufacturing the transmission, and image formation apparatus
RICOH KK4 citations63
RICOH CO LTD
6 patentsUS8010026B2Aug 30, 2011
Image forming system and method of detecting color misregistration
RICOH CO LTD27 citations92
US7937007B2May 3, 2011
Image forming apparatus and image forming method of effectively detecting a speed deviation pattern of the image forming apparatus
RICOH CO LTD7 citations84
US7885587B2Feb 8, 2011
Image forming apparatus with color shift correction suppressing periodic fluctuations of a surface moving speed of a latent image support
RICOH CO LTD15 citations84
US8346111B2Jan 1, 2013
Image forming device
RICOH CO LTD6 citations73
US8010019B2Aug 30, 2011
Image forming apparatus
RICOH CO LTD1 citations52
US7991326B2Aug 2, 2011
Image forming apparatus having enhanced controlling method for reducing deviation of superimposed images
RICOH CO LTD0 citations38