Inventor
YABUTA TOMONORI
JP8 patents
Patents
8 patentsUS6282396B1Aug 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
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
US6184910B1Feb 6, 2001
Color image forming apparatus with polygonal mirror rotation phase control
RICOH KK26 citations92
US5799228AAug 25, 1998
Image forming apparatus which prevents adverse affects from heating elements
RICOH KK22 citations91
US5678161AOct 14, 1997
Paper conveyer of image forming apparatus which conveys paper to a fixing device
RICOH KK38 citations91
US5828926AOct 27, 1998
Registration control for an image forming apparatus having an intermediate transfer belt
RICOH KK35 citations90