Inventor
FUKUDA HARUHIKO
JP5 patents
Patents
5 patentsUS5751854AMay 12, 1998
Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system
RICOH KK181 citations98
US6272248B1Aug 7, 2001
Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system
RICOH KK113 citations97
US5414535AMay 9, 1995
Apparatus for reading image from original image on translucent film with automatic adjustment of the quantity of light from a light source
RICOH KK34 citations89
US4669859AJun 2, 1987
Developing device
RICOH KK14 citations73
US5287198AFeb 15, 1994
Image reading apparatus
RICOH KK4 citations60