Inventor
SHIMOMAE MUTSUO
JP6 patents
Patents
6 patentsUS5647010AJul 8, 1997
Image forming apparatus with security feature which prevents copying of specific types of documents
RICOH KK126 citations96
US5327260AJul 5, 1994
Image processing apparatus for smoothing edges of image
RICOH KK88 citations94
US6184997B1Feb 6, 2001
Variable-length reversible image data compression process
RICOH KK31 citations91
US5704020ADec 30, 1997
Page printer resolution converting method, and variable-length reversible compression process
RICOH KK16 citations81
US5666213ASep 9, 1997
Image data processing system and method realizing fine image with simple construction/procedure
RICOH KK15 citations71
US5835685ANov 10, 1998
Page printer, resolution converting method, and variable-length reversible compression process
RICOH KK2 citations61