Inventor
SHIO YUTAKA
JP13 patents
Patents
13 patentsUS5875380AFeb 23, 1999
Image forming apparatus eliminating influence of fluctuation in speed of a conveying belt to correction of offset in color registration
RICOH KK149 citations99
US6282396B1Aug 28, 2001
Color image forming apparatus and method of obtaining color images with decreased image positional deviation
RICOH KK140 citations98
US6128459AOct 3, 2000
Color image forming apparatus and method of obtaining color images with decreased image positional deviation
RICOH KK121 citations97
US6118557ASep 12, 2000
Color image forming apparatus
RICOH KK48 citations96
US5962783AOct 5, 1999
Apparatus for detecting rotational speed
RICOH KK70 citations96
US5963240AOct 5, 1999
Deflecting mirror adjusting device for an image forming apparatus
RICOH KK88 citations96
US5737665AApr 7, 1998
Apparatus for calibrating toner density for color images
RICOH KK78 citations96
US6184910B1Feb 6, 2001
Color image forming apparatus with polygonal mirror rotation phase control
RICOH KK26 citations92
US5872586AFeb 16, 1999
Apparatus for registration of plural image in an image forming apparatus
RICOH KK35 citations92
US5799228AAug 25, 1998
Image forming apparatus which prevents adverse affects from heating elements
RICOH KK22 citations91
US5828926AOct 27, 1998
Registration control for an image forming apparatus having an intermediate transfer belt
RICOH KK35 citations90
US5821970AOct 13, 1998
Color image forming apparatus
RICOH KK18 citations84
US7391682B2Jun 24, 2008
Optical disk system with improved signal regulation capability
RICOH KK4 citations57